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# SONY CCU-TX7 SERVICE MANUAL


# Quick Links


Connector Input/Output Signals


Connectors and Cables


Wiring Diagram for Cable


Connection Connector


Connections




# Table of Contents


Table of Contents


CONNECTORS AND CABLES


Connector Input/Output Signals


front panel


Connection Connector


Wiring Diagram for Cable


MAKING OF WF MODE CONNECTOR


COAX CONNECTOR


OPERATING ENVIRONMENT


MOUNTING ON 19-INCH RACK


SWITCH FUNCTIONS ON BOARD


BOARD LAYOUT


DISASSEMBLY/INSTALLATION OF MAIN PART


Removal of Cabinet


Replacement of Switching Regulator


Replacement of Fan


board


board


EXTENSION OF DXBK-701 (SDI-44 BOARD)


PREPARATION


Equipment Required


Fixture


Notes on Adjustment


Switch settings


Connections


VIDEO SIGNAL SYSTEM ADJUSTMENT


Sub-carrier Frequency Check


CAM H Phase Adjustment


H Phase Adjustment




SYNC Phase Adjustment


INT SC Phase Adjustment


Y CLAMP Adjustment


Y OUT (COMP) Level Adjustment


Y OUT (VBS) Level Adjustment


G Level Adjustment


R-Y/B-Y White Black Balance Adjustment


R Level Adjustment


B Level Adjustment


WF OUT R/B DC OFFSET Adjustment


Carrier Balance Adjustment


Color Vector Adjustment


# R-Y/B-Y OUT Level Adjustment


VBS OUT Level Adjustment


STAIR CASE Adjustment


WIDE ID Level Adjustment


# Y CABLE COMPENSATION SYSTEM ADJUSTMENT


SYNC SEP Adjustment


BLACK Pulse Width Adjustment


SYNC Sample Hold Pulse Width Adjustment


MHz VCO DC Set Adjustment


Sample Pulse Width Adjustment


Sample Pulse V Gate Width Adjustment


MHz Carrier Level Adjustment


Y DEMOD Carrier Balance Adjustment


Y OFFSET Adjustment


Y 90˚ Adjustment


Y 1st AGC Adjustment


Y Output Level Adjustment


# CHROMA CABLE COMPENSATION SYSTEM ADJUSTMENT


45 MHz Carrier Level Adjustment


C PLL Set Adjustment


# B-Y DEMOD Carrier Balance Adjustment




1. -Y Crosstalk Adjustment


C 1st AGC Adjustment


# B-Y OUT Level Adjustment


# R-Y DEMOD Carrier Balance Adjustment


R-Y Crosstalk Adjustment


# R-Y OUT Level Adjustment


# RETURN VIDEO CABLE COMPENSATION SYSTEM ADJUSTMENT


Return Video Deviation Adjustment


# PROMPT VIDEO CABLE COMPENSATION SYSTEM ADJUSTMENT


RX PROMPT VIDEO Demod. Adjustment


RX PROMPT VIDEO RF AGC Adjustment


RX PROMPT VIDEO Level Adjustment


# TRIAX INTERFACE SYSTEM ADJUSTMENT


Frequency Set Adjustment


INCOM Deviation Adjustment


PGM Deviation Adjustment


INCOM Demodulation Adjustment


INCOM Level Adjustment


MIC 1 Demodulation Adjustment


MIC 1 Level Adjustment


MIC 2 Demodulation Adjustment


MIC 2 Level Adjustment


CAM DATA Demodulation Adjustment


CAM TONE Adjustment


# Other ManualsLib Projects




# CAMERA CONTROL UNIT CCU-TX7 CCU-TX7P


CAMERA OPERATION UNIT
COU-TX7


SDI OUTPUT BOARD
DXBK-701


SERVICE MANUAL
Volume 1 1st Edition (Revised 2)


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- ! WARNING


This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.


! WARNUNG


Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.


! AVERTISSEMENT


Ce manual est destiné uniquement aux personnes compétentes en charge de l'entretien. Afin
de réduire les risques de décharge électrique, d'incendie ou de blessure n'effectuer que les
réparations indiquées dans le mode d'emploi à moins d'être qualifié pour en effectuer d'autres.
Pour toute réparation faire appel à une personne compétente uniquement.


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CCU-TX7 (E)/V1




# Purpose of this manual


## MANUAL STRUCTURE


This manual is the Service Manual Vol. 1 of the CAMERA CONTROL UNIT CCU-TX7
(for NTSC) and CCU-TX7P (for PAL), CAMERA OPERATION UNIT COU-TX7 and SDI
OUTPUT BOARD DXBK-701.
This manual contains the operation manual related to the operations of this equipment,
the replacement of the parts and adjustments.


## Related manuals


In addition to this Service Manual Vol. 1, the following manual is provided.


. Service Manual Vol. 2
Part No. 9-977-286-23
Contains semiconductor pin
and schematic diagrams.


assignments, parts lists, block diagrams, board illustrations


CCU-TX7 (E)/V1


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# TABLE OF CONTENTS


1. OPERATING INSTRUCTIONS


1-1. CCU-TX7/TX7P ............................................................................................ 1-1
1-2. DXBK-701 ................................................................................................... 1-13


2. INSTALLATION


2-1. CONNECTORS AND CABLES ................................................................... 2-1
2-1-1. Connector Input/Output Signals ............................................................. 2-1
2-1-2. Connection Connector ............................................................................ 2-4
2-1-3. Wiring Diagram for Cable ...................................................................... 2-4
2-2. MAKING OF WF MODE CONNECTOR .................................................... 2-4
2-3. COAX CONNECTOR ................................................................................... 2-5
2-4. OPERATING ENVIRONMENT ................................................................... 2-5
2-5. MOUNTING ON 19-INCH RACK ............................................................... 2-6
2-6. SWITCH FUNCTIONS ON BOARD ........................................................... 2-7


3. SERVICE INFORMATION


3-1. BOARD LAYOUT......................................................................................... 3-1
3-2. DISASSEMBLY/INSTALLATION OF MAIN PART ................................. 3-1
3-2-1. Removal of Cabinet ................................................................................ 3-1
3-2-2. Replacement of Switching Regulator ..................................................... 3-2
3-2-3. Replacement of Fan ................................................................................ 3-3
3-2-4. Removal of COU-TX7 ........................................................................... 3-3
3-3. CIRCUIT DESCRIPTION ............................................................................. 3-4
CT-181 board ....................................................................................................... 3-4
AA-90 board ........................................................................................................ 3-4
YD-26 board ........................................................................................................ 3-4
ES-20 board .......................................................................................................... 3-4
AU-234 board ...................................................................................................... 3-4
IO-140 board ........................................................................................................ 3-4
SDI-44 board (DXBK-701) ................................................................................. 3-4
3-4. EXTENSION OF DXBK-701 (SDI-44 BOARD) ......................................... 3-5


4. ADJUSTMENT


CCU-TX7 (E)/V1


1. -1. PREPARATION ............................................................................................ 4-1 4-1-1. Equipment Required ............................................................................... 4-1 4-1-2. Fixture..................................................................................................... 4-1 4-1-3. Notes on Adjustment .............................................................................. 4-1 4-1-4. Switch settings ........................................................................................ 4-1 4-1-5. Connections ............................................................................................ 4-2


4-2. VIDEO SIGNAL SYSTEM ADJUSTMENT ................................................ 4-3
4-2-1. Sub-carrier Frequency Check ................................................................. 4-3
4-2-2. CAM H Phase Adjustment ..................................................................... 4-3
4-2-3. H Phase Adjustment ............................................................................... 4-4


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1. -2-4. SYNC Phase Adjustment ....................................................................... 4-4


4-2-5. INT SC Phase Adjustment...................................................................... 4-5


1. -2-6. Y CLAMP Adjustment ........................................................................... 4-5


4-2-7. Y OUT (COMP) Level Adjustment ....................................................... 4-6


1. -2-8. Y OUT (VBS) Level Adjustment .......................................................... 4-6


4-2-9. R-Y/B-Y White Black Balance Adjustment........................................... 4-7


1. -2-10. G Level Adjustment ............................................................................... 4-7


4-2-11. R Level Adjustment................................................................................ 4-8


1. -2-12. B Level Adjustment................................................................................ 4-8


4-2-13. WF OUT R/B DC OFFSET Adjustment ................................................ 4-9


1. -2-14. Carrier Balance Adjustment ................................................................... 4-9


4-2-15. Color Vector Adjustment ..................................................................... 4-10


1. -2-16. R-Y/B-Y OUT Level Adjustment ........................................................ 4-10


4-2-17. VBS OUT Level Adjustment ............................................................... 4-11


1. -2-18. STAIR CASE Adjustment.................................................................... 4-11


4-2-19. WIDE ID Level Adjustment................................................................. 4-12


1. -3. Y CABLE COMPENSATION SYSTEM ADJUSTMENT......................... 4-13 4-3-1. SYNC SEP Adjustment ........................................................................ 4-13 4-3-2. BLACK Pulse Width Adjustment ........................................................ 4-13 4-3-3. SYNC Sample Hold Pulse Width Adjustment ..................................... 4-14 4-3-4. 22.5 MHz VCO DC Set Adjustment .................................................... 4-14 4-3-5. Sample Pulse Width Adjustment .......................................................... 4-15 4-3-6. Sample Pulse V Gate Width Adjustment ............................................. 4-15 4-3-7. 22.5 MHz Carrier Level Adjustment .................................................... 4-16 4-3-8. Y DEMOD Carrier Balance Adjustment.............................................. 4-16 4-3-9. Y OFFSET Adjustment ........................................................................ 4-17 4-3-10. Y 90˚ Adjustment ................................................................................. 4-17 4-3-11. Y 1st AGC Adjustment ........................................................................ 4-17 4-3-12. Y Output Level Adjustment ................................................................. 4-18


4-4. CHROMA CABLE COMPENSATION SYSTEM ADJUSTMENT .......... 4-18
4-4-1. 45 MHz Carrier Level Adjustment ....................................................... 4-18
4-4-2. C PLL Set Adjustment.......................................................................... 4-19
4-4-3. B-Y DEMOD Carrier Balance Adjustment.......................................... 4-19
4-4-4. B-Y Crosstalk Adjustment ................................................................... 4-20
4-4-5. C 1st AGC Adjustment......................................................................... 4-20
4-4-6. B-Y OUT Level Adjustment ................................................................ 4-21
4-4-7. R-Y DEMOD Carrier Balance Adjustment.......................................... 4-21
4-4-8. R-Y Crosstalk Adjustment ................................................................... 4-22
4-4-9. R-Y OUT Level Adjustment ................................................................ 4-22


1. -5. RETURN VIDEO CABLE COMPENSATION SYSTEM ADJUSTMENT............................................................................................ 4-23 4-5-1. Return Video Carrier Frequency Adjustment....................................... 4-23 4-5-2. Return Video Deviation Adjustment .................................................... 4-23


4-6. PROMPT VIDEO CABLE COMPENSATION SYSTEM
ADJUSTMENT............................................................................................ 4-24
4-6-1. TX PROMPT VIDEO Demodulation Adjustment ............................... 4-24
4-6-2. RX PROMPT VIDEO Demod. Adjustment......................................... 4-25
4-6-3. RX PROMPT VIDEO RF AGC Adjustment ....................................... 4-26
4-6-4. RX PROMPT VIDEO Level Adjustment ............................................ 4-27


4


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CCU-TX7 (E)/V1




# 4-7. TRIAX INTERFACE SYSTEM ADJUSTMENT....................................... 4-27


1. -7-1. Frequency Set Adjustment ................................................................... 4-27


4-7-2. INCOM Deviation Adjustment ............................................................ 4-28


1. -7-3. PGM Deviation Adjustment ................................................................. 4-28


4-7-4. INCOM Demodulation Adjustment ..................................................... 4-29


1. -7-5. INCOM Level Adjustment ................................................................... 4-29


4-7-6. MIC 1 Demodulation Adjustment ........................................................ 4-30


1. -7-7. MIC 1 Level Adjustment ...................................................................... 4-30


4-7-8. MIC 2 Demodulation Adjustment ........................................................ 4-31


1. -7-9. MIC 2 Level Adjustment ...................................................................... 4-31


4-7-10. CAM DATA Demodulation Adjustment ............................................. 4-32


4-7-11. CAM TONE Adjustment...................................................................... 4-32


CCU-TX7 (E)/V1


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1. -859-845-12(1)


# Camera Control Unit


Operating Instructions
Before operating the unit, please read this manual
thoroughly and retain it for future reference.


## CCU-TX7/TX7P


 1997 by Sony Corporation


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# WARNING To prevent fire or shock hazard, do not expose the unit to rain or moisture.


For the customers in the USA


This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own
expense.
You are cautioned that any changes or modifications not
expressly approved in this manual could void your authority
to operate this equipment.
This device requires shielded interface cables to comply with
FCC emission limits.


This symbol is intended to alert the user to the
presence of uninsulated "dangerous voltage"
within the product's enclosure that may be of
sufficient magnitude to constitute a risk of
electric shock to persons.


This symbol is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.


## Owner's Record


The model and serial numbers are located at the rear.
Record the serial number in the space provided below.
Refer to these numbers whenever you call upon your Sony
dealer regarding this product.
Model No. Serial No.


2


## Table of Contents


Overview ............................................................................ 4
Product Features .................................................................. 4
Connections ......................................................................... 5
Installing the Camera Operation Unit ................................. 7
Location and Function of Parts ....................................... 8
Front Panel .......................................................................... 8
Rear Panel ......................................................................... 14
Internal Board Switches and Knobs .................................. 17
Notes on Use ................................................................... 20
Specifications .................................................................. 21


3


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# Over Overviewview


## Pr oduct Features


||of how to connect other devices to this unit Some of the video camera's switches and buttons|
|---|---|
|connects to DXC-637 Series and DXC-D30 Series|are shown in the following. may not operate while the CCU-TX7/TX7P is|
|||
||Notes|


The CCU-TX7/TX7P is a camera control unit that
Color Video Cameras via the CA-TX7/TX7P Camera
Adaptor.
This product's features are described below.


## Full-featured signal transfer functions


 The CCU-TX7/TX7P is able to transfer wideband
component video signals. (Y signals at 9 MHz or
above, and R-Y and B-Y signals at 4.5 MHz or
above)


When using a triaxial cable, audio signals can be
transferred up to 750 meters (2461 feet) (when cable
diameter is 8.5 mm (11/32 inch)) or 1,500 meters (4921
feet) (when cable diameter is 14.5 mm (19/32 inch)).


 Transfer functions are provided for the following
signals.
Return video, teleprompter signal, microphone audio,
program audio, red tally and green tally signals


An intercom switch is also provided.


Y/R-Y/B-Y,1) RETURN
R/G/B,Y/C MIC VIDEO
OUT


## Flexibly adaptable camera control functions


INTERCOM/
TALLY VBS


 The optional COU-TX7 Camera Operation Unit,
which can be installed on the CCU-TX7/TX7P's
front panel, enables video camera operations to be
controlled from the CCU-TX7/TX7P.


INTERCOM (front panel)


Reference sync signal


When several CCU-TX7/TX7P units are connected in
parallel, the optional RCP-TX7 Remote Control
Panel can be used to control video camera operations
as well as the color balance between cameras.
An RS-232C connector is provided for the CCU-
TX7/TX7P, allowing a personal computer to be
connected for computer-based control of video
camera operations.


GENLOCK


CAMERA


Triaxial cable


PROMPT
VIDEO
Teleprompter


signal


CCA-7 cable


DC IN


REMOTE


DC power
source 2)


CCU-TX7/TX7P 3) PIX


WF SYNC AC IN


## Wide array of input/output signals


The input and output connectors provided for the
CCU-TX7/TX7P include those for outputting such
signals as a composite video signal (VBS), component
video signals (switchable to RGB), SDI signals, and
video signals for video and waveform monitors, for
inputting a reference signal for external
synchronization.


## Rack mountable


Two CCU-TX7/TX7P units can be installed side by
side in the optional RMM-TXC7 Rack Mount Bracket.


4


## Connections


Control console


Headset


Headset


CA-TX7/TX7P


DXC-D30/D30P


CCU/CAMERA


AC power source 2)


AC power cord
(supplied)


VIDEO
IN


VIDEO
IN


REF
IN


RCP-TX7 Video monitor


Waveform monitor


5


Be sure to power the CCU-TX7/TX7P off before
inserting or removing the triaxial cable connector.


## When using one CCU-TX7/TX7P unit


For details, see the operation instructions for the video
camera or camera adaptor.


Out
In
In
In
In/Out


1) Y/R-Y/B-Y, R/G/B, and Y/C outputs are switchable.
2) Use either AC or DC power source.
3) This illustration shows the CCU-TX7.


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# Over view


Switcher with SDI input


6


## When using two CCU-TX7/TX7P units


## DXC-D30/D30P


VCR


## 1 Open the CCU-TX7/TX7P's front panel.


Y/R-Y/B-Y,R/G/B,Y/C


1)


Chroma keyer


VBS


GENLOCK Reference sync signal
RETURN VIDEO Return video signal


CA-TX7/TX7P
Triaxial cable


CAMERA


Teleprompter signal


PROMPT VIDEO


CCA-7 cable


PROMPT
VIDEO


(For power sources,
see the connections
illustrated for the unit
shown below.)


REMOTE


RETURN
VIDEO


CCU/CAMERA


RS232C


CCU-TX7/TX7P 3)


## 2 Remove the blank panel and the connector cap.


GENLOCK


Stopper


Switcher, video
monitor, etc.


Connector cap


## DXC-D30/D30P


Blank panel


RCP-TX7 Y/R-Y/B-Y,R/G/B,Y/C1) VCR
VBS
Chroma keyer
GEN
LOCK
CA-TX7/TX7P
CAMERA
Triaxial cable RETURN
VIDEO
PROMPT
CCA-7 cable VIDEO
REMOTE
DC IN
CCU/CAMERA
DC power
CCU-TX7/ SDI AC IN source 2)
TX7P 3) OUT4)
AC power cord
RS232C (supplied)
AC power source 2)


3 Attach the camera operation
unit to the front panel and
connect the flat cable to the
connector.


Flat cable


Camera
operation unit


## 4 Close the front panel and fasten the screws.


Monitor with SDI input


RCP-TX7


Personal computer
(When the RCP-TX7s are
not connected.)


VCR with SDI input


Waveform monitor
with SDI input


1. Y/R-Y/B-Y, R/G/B, and Y/C outputs are switchable.

2. Use either AC or DC power source.

3. This illustration shows the CCU-TX7.


Switcher, video
monitor, etc.


1. Using the SDI OUT connectors requires the optional DXBK-701 board.


## Installing the Camera Operation Unit


The following describes how to fit the optional COU-
TX7 Camera Operation Unit to the CCU-TX7/TX7P's
front panel.


7


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# Location Location and and Function of P Function of Parts


## arts


Various switches, adjustment knobs, and connectors
are located on the front panel, rear panel, and also on
the edges of internal boards.


## Front P anel


From the front panel, you can operate the CCU-TX7/
TX7P's switches and knobs as well as the camera
operation unit's switches and knobs (when the optional
COU-TX7 Camera Operation Unit has been installed).


For description of how to install the camera operation unit,
see "Installing the Camera Operation Unit" (page 7).


CCU-TX7/TX7P switches and knobs
(see page 9)


Camera operation unit switches and knobs
(see page 10)


6 POWER switch and
indicator


TALLY CABLE ALARM OPERATE
SHORT OPEN LOCK
PART
FULL
SHUTTER
CALL


OUTPUT GAIN
CAM HIGH
MID
BARS LOW
SKIN
DETAIL
Hz
ON
OFF
WHITE/BLACK BALANCE
WHITE AUTO ATW
PRE
BLACK MANUAL


## TLCS


1 TALLY lamp
The lamp lights red when a red tally signal is received
and green when a green tally signal is received.
It also lights red when the CALL button is pressed on
the CA-TX7/TX7P Camera Adaptor or RCP-TX7
Remote Control Panel connected to this unit.
The camera number plate (provided) can be attached to
this lamp.


INTERCOM connector (XLR 5-pin): Use this to
connect a headset.
INTERCOM (intercom level) knob: Use this to
adjust the intercom sound volume.
PGM (program audio level) knob: Use this to
adjust the sound volume when monitoring
program audio via a headset.
MIC switch: Use this switch to turn the headset's
microphone ON or OFF.
LINE switch: Use this switch to select the channel
for intercom signals that are input and output via
the INTERCOM connector.
 CH1: Connects to channel 1
 CH2: Connects to channel 2
 PRIV: Does not connect to channel 1 or
channel 2. Instead, the intercom operates only
between this unit and the connected video
camera.


## M.GAMMA


C.SCAN
ON
OFF


CAMERA INTERCOM
POWER
MIC LINE
ON CH1
AUTO
PRIV
ON OFF CH2 MANUAL
INTERCOM PGM
OFF
BLACK
KNEE MASTER
BLACK
AUTO
PUSH
POWER
PRESET


## DETAIL


## WHITE


## IRIS


## AUTO


## MANUAL


8


## CCU-TX7/TX7P switches and knobs


1 TALLY lamp


4 INTERCOM audio input/output and setting
section


## TALLY CABLE ALARM SHORT OPEN


2 CABLE ALARM indicator


## CALL


3 CALL button


CAMERA INTERCOM
POWER
MIC LINE
ON CH1


## PRIV


ON


## OFF CH2 INTERCOM PGM


## OFF


PUSH


## POWER


MIC switch


LINE switch


PGM knob


INTERCOM knob


PUSH


INTERCOM connector


4 INTERCOM audio input/
output and setting section
5 CAMERA POWER switch
and indicator


2 CABLE ALARM indicator
SHORT: this indicator lights when an overcurrent
occurs in the triaxial cable connected to the
CAMERA connector on the rear panel.
OPEN: this indicator lights when there is no triaxial
cable connected to the CAMERA connector on
the rear panel or when the current flowing in the
connected triaxial cable is excessively small.


3 CALL button
When you press this button, it lights along with the red
TALLY lamps and CALL buttons on the video
camera, camera adaptor, and remote control panel
connected to this unit. This function can be used to call
the video camera or remote control panel operator.


You can then talk with the operator via the intercom.
This button also lights when the CALL button is
pressed on the camera adaptor or remote control panel.


INTERCOM
MIC LINE
ON CH1
PRIV
OFF CH2
INTERCOM PGM


5 CAMERA POWER switch and indicator
When the POWER switch is on, use this switch to
switch the power on and off to the video camera and
camera adaptor connected to this unit. The indicator
lights when this switch is turned on powering the
camera adaptor.


6 POWER switch and indicator
This switches the power to this unit on or off. The
indicator lights when the power is on.


9


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# Location and Function of Parts


## Camera operation unit switches and knobs


1 OUTPUT switch


## SHUTTER


7 GAIN switch


WHITE AUTO/PRE/MANUAL switch


Hz


## C.SCAN ON OFF


OPERATE OUTPUT GAIN TLCS
LOCK
HIGH
CAM
PART MID
FULL BARS LOW
SHUTTER SKIN M.GAMMA
DETAIL
Hz


ATW button


WHITE/BLACK BALANCE
AUTO WHITE AUTO ATW
PRE
MANUAL BLACK MANUAL


2 OPERATE switch


8 TLCS switch


$ button and 4 button


3 SHUTTER setting
section


9 M. GAMMA knob


C.SCAN ON
ON
OFF OFF
DETAIL
WHITE/BLACK BALANCE
AUTO WHITE AUTO ATW
PRE
MANUAL BLACK MANUAL


SHUTTER switch


## BLACK


0 SKIN DETAIL switch
!¡ DETAIL knob


## WHITE


WHITE knob
WHITE knob (blue)
(red)


BLACK knob
(red)


SHUTTER switch: Use this switch to select a
shutter setting. This switch does not function
when the TLCS switch is on.


4 WHITE/BLACK BALANCE
control section


BLACK knob
(blue)


ON


WHITE 1234


## BLACK


## KNEE MASTER BLACK AUTO


-  C. SCAN: This activates the clear scan function.


## IRIS


## AUTO


!£


DIP switch


-  ON: This activates the normal shutter function.  OFF: This turns off the shutter.


5 KNEE switch


## BLACK AUTO/MANUAL switch


## PRESET MANUAL


6 MASTER BLACK knob


!™ IRIS control section


The camera operation unit's switches and knobs are
used to set and adjust video camera functions.


For details about the video camera functions and settings,
refer to operating instructions for your video camera.


1 OUTPUT switch
Use this switch to select the video to be output from
this unit.
CAM: Image being shot via video camera
BARS: Color bars generated by this unit


2 OPERATE (operation range setting) switch
Use this switch to set the operation range of the
camera operation unit.
LOCK: This setting disables all of the camera
operation unit's functions.
PART: This setting enables only the IRIS control
section and MASTER BLACK knob to be
operated.
FULL: This setting enables all of the camera
operation unit's functions to be used. Settings
changed while this switch was set to LOCK
become valid when this switch is set to FULL.


10


3 SHUTTER setting section


Display


- $ button and 4 button: When the SHUTTER switch is set to either C. SCAN or ON, pressing one of these buttons changes the shutter speed or clear scan frequency as described below.  When SHUTTER switch is set to C. SCAN Pressing and holding one of these buttons gradually reduces ($ button) or increases (4 button) the clear scan frequency.  When SHUTTER switch is set to ON Each time one of these buttons is pressed, the shutter speed is reduced ($ button) or increased (4 button) by one step. If you press both of these buttons at once, it resets the clear scan frequency or shutter speed (depending on the SHUTTER switch's position) to their factory settings.


Display: This displays the clear scan frequency
when the SHUTTER switch is set to C. SCAN or
the shutter speed when it is set to ON. "OFF" is
displayed here when the SHUTTER switch is set
to the OFF position.
When the TLCS switch is on, the display is blank.


4 WHITE/BLACK BALANCE control section


BLACK AUTO/
MANUAL
switch


WHITE/BLACK switch and
indicators


Use this switch to select whether to automatically
(AUTO) or manually (MANUAL) adjust the black
balance.
(When a DXC-637 series video camera is connected,
this switch is invalid and the black balance mode is
determined by the position of the WHITE AUTO/PRE/
MANUAL switch.)


WHITE/BLACK (white/black balance
adjustment) switch and indicators
When the WHITE AUTO/PRE/MANUAL switch is
set to AUTO, press this switch to the WHITE position
to automatically adjust the white balance.
When the BLACK AUTO/MANUAL switch is set to
AUTO, press this switch to the BLACK position to
automatically adjust the black balance.
The indicator by the WHITE or BLACK position
blinks at a one-second interval while the white balance
or black balance is being automatically adjusted. When
the automatic adjustment is completed, it stays lit for
about ten seconds, then goes out. If the automatic
adjustment fails, it blinks at a half-second interval for
about ten seconds and then goes out.


11


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# Location and Function of Parts


## WHITE AUTO/PRE/MANUAL (white balance


auto/preset/manual) switch
Use this switch to select the white balance adjustment
mode. This switch does not function while the ATW
function is being used (while the ATW button is lit).
AUTO: This sets auto adjustment mode. It enables
the white balance to be automatically adjusted
using the WHITE/BLACK switch.
(When a DXC-637 series video camera is
connected: this also sets auto adjustment mode
for the black balance. The black balance can be
automatically adjusted even while the ATW
function is being used.)
PRE: This sets preset mode. The white balance is
maintained at the preset value.
(When a DXC-637 series video camera is
connected: this also sets auto adjustment mode
for the black balance. The black balance can be
automatically adjusted even while the ATW
function is being used.)
MANUAL: Sets manual adjustment mode. It
enables the white balance to be manually adjusted
using the WHITE knob (red) and WHITE knob
(blue).
(When a DXC-637 series video camera is
connected: this also sets manual adjustment mode
for the black balance. The black balance can be
adjusted manually even while the ATW function
is being used.)


ATW (auto tracing white balance) button
Press this button (which lights up when pressed) to
have the white balance adjusted automatically when
lighting conditions change.


BLACK (black balance) knob (red)
When the BLACK AUTO/MANUAL switch is set to
MANUAL, this knob can be used to adjust the black
level of the R signal.


BLACK (black balance) knob (blue)
When the BLACK AUTO/MANUAL switch is set to
MANUAL, this knob can be used to adjust the black
level of the B signal.


WHITE (white balance) knob (red)
When the WHITE AUTO/PRE/MANUAL switch is
set to MANUAL, this knob can be used to adjust the
gain of the R signal.


WHITE (white balance) knob (blue)
When the WHITE AUTO/PRE/MANUAL switch is
set to MANUAL, this knob can be used to adjust the
gain of the B signal.


5 KNEE switch
Use this switch to adjust the knee setting.
AUTO: Knee is automatically adjusted
PRESET: Knee is adjusted to preset value


## MASTER BLACK knob


6
This adjusts the master black (master pedestal level)
setting. The click position of the knob provides a
typical setting.


7 GAIN switch
Use this switch to set any of three video amp gain
levels (HIGH, MID, or LOW). The gain value
corresponding to these levels can be set using a menu
on the video camera.


8 TLCS (total level control system) switch
Press this switch to turn the total level control system
on or off. The switch lights when it is turned on. When
this switch is on, settings made with the GAIN switch
and SHUTTER switch are ignored.
(This function cannot be used when a DXC-637 series
video camera is connected.)


9 M. GAMMA (master gamma) knob
Use this knob to adjust the gamma curve. The click
position of the knob provides a typical setting.
(This function cannot be used when a DXC-637 series
video camera is connected.)


0 SKIN DETAIL switch
Use this switch to turn the skin detail correction
function on or off.
(This function cannot be used when a DXC-637
video camera is connected.)


series


!¡ DETAIL knob
Use this knob to adjust the detail level. The click
position of the know proides a typical setting.


12


!™ IRIS control section


IRIS AUTO/MANUAL switch


## IRIS


## AUTO


## MANUAL


Iris adjustment knob


## IRIS AUTO/MANUAL switch


Use this switch to select between AUTO and
MANUAL iris adjustment modes. Be sure that the
IRIS switch on the video camera is set to AUTO.
AUTO: Iris is automatically adjusted.
MANUAL: Iris is adjusted with the iris adjustment
knob.


Iris adjustment knob
When the IRIS AUTO/MANUAL switch is set to
MANUAL, this knob can be used to manually adjust
the iris.
When the IRIS AUTO/MANUAL switch is set to
AUTO, this knob can be used to manually fine-tune
the automatic iris adjustment.


!£ DIP switch
Use the four switches numbered 1 to 4 to make the
following settings.
No.1 OFF/No.2 OFF Standard color matrix setting
No.1 OFF/No.2 ON (This setting has no effect when a


DXC-D30 series video camera is


connected.)
No.1 ON/No.2 OFF Color matrix set for fluorescent
lighting (FL).
(This setting has no effect when a


DXC-D30 series video camera is


connected.)
No.1 ON/No.2 ON Color matrix set for color emphasis


(H.SAT).


(This setting has no effect when a


DXC-D30 series video camera is


connected.)
No.3 ON EVS function set on for the shutter.
(Has priority over the SHUTTER
switch setting on the camera
operation unit.)
No.4 ON Date and time display set on for the
output picture.


13


## Downloaded from www.Manualslib.com manuals search engine




# Location and Function of Parts


## Rear Panel


9 OUTPUT connectors


## PGM IN


## OUTPUT VBS1 1 2 R/R-Y/C


!º Fan


## CAMERA


1 PGM IN connector


## VBS2 1 2 G/Y/Y


|2 CAMERA connector 3 RTS connector 4 COAX connector 5 REMOTE connector 6 WF MODE connector 7 INTERCOM/TALLY connector 8 RS232C connectors|COAX REMOTE WF MODE CH1|2 OFF 75Ω RETURN VIDEO ON SPARE OFF 75Ω 2 ON OFF 75Ω PROMPT VIDEO DC IN PIX 1 B/B-Y WF SYNC RTS 1 2 CH2 BREAKER MIC OUT CH2 CH1 SDI OUT AC IN RS232C|!¡ INPUT connectors and 75 Ω termination switches !™ MIC OUT connectors !£ DC IN connector !¢ SDI OUT connectors !∞AC IN connector !§ Breaker switch Illustration: CCU-TX7||9 OUTPUT connectors R/R-Y/C, G/Y/Y, and B/B-Y VBS1 and VBS2 connectors PIX connector WF connector|type) OUTPUT VBS1 1 2 R/R-Y/C VBS2 1 2 G/Y/Y PIX 1 2 B/B-Y WF SYNC SPARE SPARE connector|0 A If the of !¡|fan is fan should supplier Sony when the equipment. section and|in. the CAMERA POWER switch off the power, and consult for repair. Continuing to use is defective may shorten the life (BNC type) and 75-Ω four pairs of loop-through 75-Ω termination|
|---|---|---|---|---|---|---|---|---|---|


INPUT GENLOCK
ON
OFF
75Ω
1
ON


1 PGM IN (program audio input) connector (XLR
3-pin)
The program audio signal is input via this connector.


2 CAMERA connector (triaxial)
Connect a triaxial cable here to connect this unit to the
CA-TX7/TX7P Camera Adaptor attached to a video
camera.


3 RTS (intercom) connector (XLR 3-pin)
Use this connector to connect an RTS intercom system
or a Clear-Com intercom system.


Contact a Sony dealer before using this connector.


4 COAX (coaxial) connector (BNC type)
Use this connector for input and output of signals from
the video camera connected via a coaxial cable. No
power is supplied to the video camera or camera
adaptor via the coaxial cable.


Internal board settings must be changed before using this
connector. For details, contact a Sony dealer.


5 REMOTE (remote control panel) connector (10-
pin)
Use this connector to connect the RCP-TX7 Remote
Control Panel via a CCA-7 cable.


6 WF MODE (waveform monitor mode)
connector (4-pin)
Connect to the corresponding connector on a
waveform monitor when monitoring signals in
sequential mode.


Internal board settings must be changed before using this
connector. For details, contact a Sony dealer.


7 INTERCOM/TALLY connector (D-sub 25-pin)
Intercom signals and tally signals are input and output
via this connector. Connect to the intercom system's
INTERCOM/TALLY connector.


14


8 RS232C connectors (D-sub 25-pin)
There are two connectors, CH1 and CH2. You can use
these connectors to connect a personal computer to
control the video camera.
You may also use these connectors to connect this unit
to another CCU-TX7/TX7P unit. It is possible to carry
out color balancing or linked iris adjustment between
two or more interconnected CCU-TX7/TX7P units
using the RCP-TX7 Remote Control Panel.


For details, refer to the operating instructions for the RCP-
TX7.


SYNC connector


1


## RETURN VIDEO


2


## PROMPT VIDEO


## R/R-Y/C, G/Y/Y, and B/B-Y (component video


signal/RGB signal/Y and C signal output)
connectors
Use these connectors to output the signals from the
video camera as component signals (R-Y, B-Y, and
Y), RGB signals for chroma keying, or Y and C
signals. Use a switch on an internal board (ES-20) to
select the type of output signal.


VBS1 and VBS2 (composite video signal 1 and
2 output) connectors
Use these connectors to output signals from a video
camera as composite video signals.


SYNC (sync signal output) connector
This connector outputs a SYNC signal (0.3 Vp-p, 75


Ω). Connect to the synchronization signal input


connector on a waveform monitor or video monitor.


PIX (picture monitor output) connector
Use this connector to output a video signal to a video
monitor. Use the MONITOR SELECT button on the
RCP-TX7 Remote Control Panel to set the type of
signal to be output. Selection of the signal type also
applies to the output from the WF connector.


WF (waveform monitor output) connector
Use this connector to output a video signal to a
waveform monitor. Use the MONITOR SELECT
button on the RCP-TX7 Remote Control Panel to set
the type of signal to be output. Selection of the signal
type also applies to the output from the PIX connector.


SPARE connector
This connector is not used (it is reserved for future
use).


Note
the
fail,
indicator
flashes. Immediately
your
dealer
unit
fan
the


INPUT connectors
termination switches
This
includes
connectors
corresponding
switches.
INPUT GENLOCK
ON
GENLOCK connectors


OFF
75Ω
ON
OFF
75Ω
ON
OFF
75Ω
ON
OFF
75Ω


RETURN VIDEO 1 and
RETURN VIDEO 2 connectors


PROMPT VIDEO connectors


## 75-Ω termination switches


GENLOCK (generator lock) connectors
Use these connectors to input a reference sync signal
(black burst signal or composite video signal) for
external synchronization .


## RETURN VIDEO 1 and RETURN VIDEO 2


connectors
These connectors correspond to the RETURN 1 and
RETURN 2 buttons on the CA-TX7/TX7P Camera
Adaptor. Two sets of return video signals can be input
via these two pairs of connectors.


15


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# Location and Function of Parts


## PROMPT VIDEO connectors


Use these connectors to input teleprompter signals.


## 75-Ω termination switches


When only one loop-through connector is used and the
other connector in the pair is not connected to any
external device, set the corresponding 75-Ω
termination switch to the ON position.


!™ MIC OUT connectors (XLR 3-pin)
Use these connectors to output microphone signals
(CH1 and CH2) from the connected video camera.


!£ DC IN connector (XLR 4-pin)
Use this connector to operate this unit using a DC
power source (10.5 to 17 V).


CT-181 AA-90 YD-26 ES-20


## SDI-44


1 ES-20 board


2 AA-90 board


3 CT-181 board
SDI-44 board
(DXBK-701) a)


!¢ SDI (serial digital interface) OUT connectors 1
and 2 (BNC type)
These output the signals from the video camera as SDI
signals. Connect them to a digital VCR, digital video
switcher, video monitor, or other device with an SDI
input connector. Using the SDI OUT connectors
requires the optional DXBK-701 board.


For details, refer to the operating instructions for the
DXBK-701.


!∞ AC IN connector
Use this connector to connect an AC power source via
the supplied power cord. Use the supplied plug retainer
to attach the power cord to this unit.


!§ Breaker switch
If the input current exceeds 10 A during operation of
the unit on a DC power source, the breaker is actuated
to shut off the power supply. To resume operation,
push in the breaker switch after making sure the input
current does not exceed 10 A.


16


## Internal Board Switches and Knobs


Loosen the two screws on the right side of the front
panel to expose switches and knobs on the edges of
internal boards.


For details concerning adjustment of internal board
switches and knobs, contact a Sony dealer.


Front panel screws


a) The SDI-44 board is an option available as the DXBK-701. For details of installation
and operation, refer to the operating instructions supplied with the DXBK-701.


YD-26 board


17


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# Location and Function of Parts


1 ES-20 board


2 AA-90 board


## MIC TEST switch


## OUTPUT 1 and OUTPUT 2 switches


PANEL (panel control) switch
When the COU-TX7 Camera Operation Unit has been
installed on this unit while the RCP-TX7 Remote
Control Panel is also connected to the unit, use this
switch to select the camera operation unit or the
remote control panel as the control device.
REMOTE: Enables the video camera to be
controlled from the remote control panel.
LOCAL: Disables remote control (via the remote
control panel) of the video camera.


## ES-20 PHASE H


AA-90
PGM IN
0dB


H PHASE adjustment screw


PGM IN switch


-20dB


SC


3
CT-181 board


MIC 1 LEVEL
0dB


SC PHASE switch and fine-tuning screw


-20dB


0


MIC 1 LEVEL and MIC 2 LEVEL
switches


MIC 2 LEVEL
0dB


180


-20dB


OUTPUT 1
R/G/B
Y/R-Y/B-Y
Y/C
OUTPUT 2
R/G/B
Y/R-Y/B-Y
Y/C


MIC TEST
CH1
CH2
OFF
LEVEL IND


## CONTROL MODE switch


MIC TEST switch


CT-181
R TALLY
CONTACT
POWER
DC24V
TTL
G TALLY
CONTACT
POWER
DC24V
TTL


OUTPUT 1 and OUTPUT 2 switches


If another CCU-TX7/TX7P unit is connected to this
unit, use this switch to select whether the video camera
is controlled directly from this unit or from the other
CCU-TX7/TX7P unit.
NORMAL: Video camera is controlled directly from
this unit.
SLAVE: Video camera is controlled from other
CCU-TX7/TX7P unit.
This switch does not operate when the RCP-TX7
Remote Control Panel is connected to this unit. In this
case, use the remote control panel to make the above
selection.


LEVEL IND indicators


R TALLY and G TALLY
switches


INTERCOM
2W
CLEAR
RTS
COM
4W
RTS
CLEAR
COM


INTERCOM switches


MIC GAIN
NORM
CH1
MIN
MAX
NORM
CH2
MIN
MAX
PANEL
REMOTE
LOCAL
CONTROL MODE
NORMAL
SLAVE


MIC GAIN adjustment screws


## H PHASE (horizontal phase) adjustment screw


## PGM IN (program audio input level setting)


switch
Use this switch to set the program audio input level to
0 dB or -20 dB.


PANEL switch


Turn this screw with a screwdriver to adjust the
horizontal phase alignment between an external sync
signal and the output signal.


CONTROL MODE switch


## SC PHASE (subcarrier phase setting) switch


and fine-tuning screw
Use this switch and screw to adjust the output signal
subcarrier phase with respect to an external sync
signal. After setting the SC PHASE switch, turn the
fine-tuning screw to make fine adjustments.


Use these switches to select the type of signal to be
output via the OUTPUT connectors (R/R-Y/C, G/Y/Y,
B/B-Y). The OUTPUT 1 switch corresponds to the
three OUTPUT connectors on the left side and the
OUTPUT 2 switch to the three OUTPUT connectors
on the right side.
R/G/B: Selects output of R, G, and B signals from
the OUTPUT connectors.
Y/R-Y/B-Y: Selects output of R-Y, Y, and B-Y
component signals from the OUTPUT connectors.
Y/C: Selects output of Y and C signals from the
OUTPUT connectors.


18


## MIC 1 LEVEL and MIC 2 LEVEL switches


Use these switches to set the microphone output levels
for channel 1 (CH1) and channel 2 (CH2) to 0 dB or
-20 dB.


Set this switch to CH1 or CH2 to mix that channel's
microphone signals from the video camera with the
program audio, so that the mixed input can be
monitored via a headset connected to this unit or a
camera adaptor. This switch is used to check the
microphone signals.


## LEVEL IND (microphone level) indicators


The transfer levels for microphone signals (CH1 and
CH2) are indicated by colors. The upper indicator
corresponds to channel 1 (CH1) and the lower one to
channel 2 (CH2).
Green: Approximately -12 dB to 0 dB
Orange: Approximately 0 dB to +12 dB
Red: Approximately +12 dB or higher
Use these indicators along with the MIC TEST switch
to check microphone signal lines or as a adjustment
indicator when adjusting the microphone gain with a
MIC GAIN adjustment screw on the CT-181 board.


INTERCOM (intercom system select) switches
Use these switches to select the type of external
intercom system to be used. Set the upper switch to
4W if no external intercom is connected.
If you set the upper switch to RTS, select either RTS
or CLEARCOM with the lower switch.


## R TALLY (red tally) and G TALLY (green tally)


switches
Set these switches to CONTACT (to use contact
signals) or POWER (to use voltage signals) for the red
tally and green tally. If you set them to POWER, select
either DC24V or TTL.


## MIC GAIN adjustment screws


Use these screws to adjust the microphone amplifier
gain for the camera adaptor. The standard level
(NORM) is 0 dB, and the gain setting can be adjusted
to any of 16 levels from -12 dB (MIX) to +12 dB.
Adjust the gain so that, on the AA-90 board, the green
and orange LEVEL IND indicators are lit while the
audio level is normal with the red indicator lighting
only when the maximum audio level is reached. If the
red indicator does not light at all, or if the orange
indicator lights only intermittently, raise the gain level.
If the red indicator stays lit, lower the gain.


19


## Downloaded from www.Manualslib.com manuals search engine




# Location Notes and on Use Function of Parts


## Use and storage locations


Avoid using or storing the unit in the following places:
Where it is subject to extremes of temperature
(operating temperature: 5°C to 40°C (41°F to
104°F)).
Note that in summer the temperature in a car with the
windows closed can reach 50°C (122°F).


 Very damp or dusty places.


Where rain is likely to reach the unit.


-  Places subject to severe vibration.

-  Near strong magnetic fields

-  Near transmitting stations generating strong radio waves.


## Avoid violent impacts


Dropping the unit, or otherwise imparting a violent
shock to it, is likely to cause it to malfunction.


## Do not cover with cloth


While the unit is in operation, do not cover it with a
cloth or other material. This can cause the temperature
to rise, leading to a malfunction.


## After use


Turn the unit off.


## Care


If the body of the unit is dirty, wipe it with a dry cloth.
For severe dirt, use a soft cloth steeped in a small
amount of neutral detergent, then wipe dry. Do not
use volatile solvents such as alcohol or thinners, as
these may damage the finish.


20


## Specifications


## General


Power requirements
CCU-TX7: 120 VAC, 50/60 Hz
CCU-TX7P: 220 to 240 VAC, 50/
60 Hz, 0.45 A


10.5 to 17.0 VDC


Power consumption
95 W
Cable length 1500 m max. (diameter: 14.5 mm )
Operating temperature
5°C to 40°C (41°F to 104°F)
Mass About 8.45 kg (18 lb 10 oz)
Dimensions (w/h/d, excluding protruding parts)
200 × 164 × 370 mm (7 7/8 × 6 1/2 ×
14 5/8 inches)


## Input connectors


GENLOCK BNC type (2, loop-through)
VBS/BS, 1.0Vp-p, 75 Ω
RETURN VIDEO 1, 2
BNC type (2 each, loop-through)
VBS, 1.0 Vp-p, 75 Ω
PROMPT VIDEO BNC type (2, loop-through)
VBS, 1.0 Vp-p, 75 Ω
PGM IN XLR 3-pin (1)


MIC OUT


Y/C 1)


SDI 2)


SYNC


XLR 3-pin (2)
0 dBu/-20 dBu balanced,
2 channels
BNC type (2 each)


1. : 1.0 Vp-p, 75 Ω


C: 286 mV (CCU-TX7)/300 mV
(CCU-TX7P) (burst), 75 Ω


BNC type (2)
SDI format, 270 Mbps, SMPTE
259M (CCU-TX7)/CCIR656-III
(CCU-TX7P)
BNC type (1)
0.3 Vp-p, 75 Ω, negative polarity


## Camera control input/output connectors


CAMERA Triaxial (1)
COAX BNC type (1)
REMOTE 10-pin (1)
INTERCOM/TALLY


D-sub 25-pin (1)


4W/2W
TALLY: 24 VDC, TTL level or
contact signals switchable
RTS XLR 3-pin (2)
RS232C D-sub 25-pin (2)
INTERCOM(on the front panel)
XLR 5-pin (1)


## Output connectors


VBS1, VBS2


Y/R-Y/B-Y1)


## Accessories supplied


BNC type (1 each)
VBS, 1.0 Vp-p, 75 Ω
BNC type (2 each)


Y: 1.0 Vp-p, 75 Ω


R-Y/B-Y: 700 mVp-p (CCU-
TX7)/525 mVp-p (CCU-TX7P),
75 Ω
BNC type (2 each)
700 mVp-p, 75 Ω
BNC type (1), 1.0 Vp-p, 75 Ω
BNC type (1)
700 mVp-p, 75 Ω
Encoded output: 1.0 Vp-p, 75 Ω


4-pin (1)


AC power cord (1)
Power cord plug retainer (1)
Number plates (1 set)
Operation Manual (1)


## Optional accessories


R/G/B1)


COU-TX7 Camera Operation Unit
DXBK-701 SDI Output Board
RCP-TX7 Remote Control Panel
RMM-TXC7 Rack Mount Bracket


PIX
WF


WF MODE


Design and specifications are subject to change
without notice.
..........................................................................................................................................................................................................


1. Y/R-Y/B-Y, R/G/B, and Y/C outputs are switchable.

2. When the optional DXBK-701 is installed. 21


## Downloaded from www.Manualslib.com manuals search engine




English


# To switch the DXC-D30WS/D30WSP aspect ratio


To switch the DXC-D30WS/D30WSP Digital Video
Camera connected to this unit via the CA-TX7/TX7P
Camera Adaptor between 16:9 and 4:3 aspect ratios,
use the following methods.


## When using the RCP-TX7 Remote Control


## Panel


Switch the aspect ratio using advanced setting page
9/11 of the RCP-TX7's OTHERS menu.


## When using the COU-TX7 Camera Operation


## Unit


Switch the aspect ratio using the DXC-D30WS/
D30WSP's advanced menu.


## Wide-aspect ID signals


When using the DXC-D30WS/D30WSP connected
to this unit via the CA-TX7/TX7P with the 16:9
aspect ratio, wide-aspect ID signals1) are added to the
video signals2) output from this unit.
It is possible to change the internal board settings of
this unit so that the ID signals are not added to the
video signals.
For more information about this, consult your Sony
service representative.


1. Complying with EIAJ CPR-1204 (CCU-TX7) or ETS WSS (CCU-TX7P).

2.  Composite video signals 1 and 2 (output from the VBS1 and VBS2 connectors)  Video signal for video monitors (output from the PIX connector)  Video signal for waveform monitors (output from the WF connector)  Component video Y signal (output from the Y connector)  Y signal of Y and C signal output (output from the Y connector)


## CCU-TX7/TX7P


English


## Pin assignment of the INTERCOM/TALLY connector


The pin assignment for the unit's INTERCOM/
TALLY connector (D-sub 25-pin) is as follows.


13 12 11 10 9 8 7 6 5 4 3 2 1


25 24 23 22 21 20 19 18 17 16 15 14


|No. Signal name 1 GREEN TALLY (Y) IN 14 GREEN TALLY (X) IN|Specifications ON: 24V DC/TTL(H)/Short OFF: 0V DC/TTL(L)/Open|
|---|---|
|2 RED TALLY (Y) IN 15 RED TALLY (X) IN|ON: 24V DC/TTL(H)/Short OFF: 0V DC/TTL(L)/Open|
|3 GND|Ground for intercom remote signal|
|16 CAM MIC OFF IN 4 CH2 INT IN|L: Camera intercom off L: Channel-2 interrupt on|
|17 CH1 INT IN 5 4W CH2 (R) (G) OUT 18 4W CH2 (R) (Y) OUT 6 4W CH2 (R) (X) OUT|L: Channel-1 interrupt on 4-wire channel-2 system receive, 0 dBu balanced|
|19 4W CH2 (T) (G) IN 7 4W CH2 (T) (Y) IN 20 4W CH2 (T) (X) IN|4-wire channel-2 system talk, 0 dBu balanced|
|8 2W CH2 (G) IN/OUT 21 2W CH2 (X) IN/OUT 9 4W CH1 (R) (G) OUT 22 4W CH1 (R) (Y) OUT 10 4W CH1 (R) (X) OUT|2-wire channel-2 system, 0 dBu Recommended termination impedance: 600 ohms 4-wire channel-1 system receive, 0 dBu balanced|
|23 4W CH1 (T) (G) IN 11 4W CH1 (T) (Y) IN 24 4W CH1 (T) (X) IN|4-wire channel-1 system talk, 0 dBu balanced|
|12 2W CH1 (G) IN/OUT 25 2W CH1 (X) IN/OUT|2-wire channel-1 system, 0 dBu Recommended termination impedance: 600 ohms|
|13 CHASSIS GND|Chassis ground|


0 dBu=0.775 Vrms


3-864-243-01(1)


## Downloaded from www.Manualslib.com manuals search engine




1. -866-203-01(1)


# SDI Output Board


Operating Instructions Page 11


GB


# DXBK-701


 1998 by Sony Corporation


Downloaded from www.Manualslib.com manuals search engine




# Downloaded from www.Manualslib.com manuals search engine


## English


## For the customers in the USA


This equipment has been tested and found to comply
with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference when the equipment is operated in a
commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment in a
residential area is likely to cause harmful interference in
which case the user will be required to correct the
interference at his own expense.


You are cautioned that any changes or modifications not
expressly approved in this manual could void your
authority to operate this equipment.


The shielded interface cable recommended in this
manual must be used with this equipment in order to
comply with the limits for a digital device pursuant to
Subpart B of Part 15 of FCC Rules.


This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2)
this device must accept any interference received,
including interference that may cause undesired
operation.


## For the customers in Canada


This Class A digital apparatus complies with Canadian
ICES-003.


11




For the customers in Europe
This product with the CE marking complies with the EMC
Directive (89/336/EEC) issued by the Commission of the
European Community.
Compliance with this directive implies conformity to the
following European standards:
EN55103-1: Electromagnetic Interference (Emission)
EN55103-2: Electromagnetic Susceptibility (Immunity)
This product is intended for use in the following
Electromagnetic Environment (s):
E1 (residential), E2 (commercial and light industrial), E3
(urban outdoors) and E4 (controlled EMC environment
ex. TV studio)


|Auto Level Adjustment .................................................17||||
|---|---|---|---|


Overview ......................................................................... 12
Location and Function of Parts.................................... 13
Fitting and Adjustment ................................................. 14
Specifications ................................................................ 18


Overview


The DXBK-701 SDI Output Board is an option board for the
Sony CCU-TX7/TX7P Camera Control Unit. When this board
is fitted in a CCU-TX7/TX7P, it provides an SDI digital signal
output.


Note
This board can be fitted to a CCU-TX7 with serial number
11001 or greater or a CCU-TX7P with serial number 41001 or
greater. 1)
When this board is fitted, the heat generated can cause burns.
.......................................................................................................................... Be sure to have the board fitted by your Sony dealer.


1) Fitting the board to a CCU-TX7 with serial number 11000 or below or a
CCU-TX7P with serial number 41000 or below requires a separate
modification to the CCU-TX7/TX7P. Consult your Sony dealer about


12 this.


||
|---|
||


SDI-44


ALARM


1 ALARM indicator


2 SDI output connectors


3 AUTO LEVEL indicator


1 ALARM indicator
This lights red when the SDI signal is
not being output.


2 SDI output connectors
Connect the two cables from the
CCU.


3 AUTO LEVEL indicator
This lights green when the automatic
video level adjustment is carried out
correctly.


4 AUTO LEVEL switch
With the output set to color bars, press
this switch to carry out automatic
video level adjustment.


5 SDI POWER switch
Set this to ON to use the SDI output.
When not using the SDI output, set to
OFF to conserve power.


13


Downloaded from www.Manualslib.com manuals search engine




# Fitting and Adjustment


Power off the CCU-TX7/TX7P before fitting the board.
1 Check that the switches on the DXBK-701 board (SDI-44)
are set as follows.
FREE LOCK: LOCK
ADJ OPE: OPE
AUDIO MODE: normally 2CH; 4CH if the connected
device does not support 2CH mode. (No audio output is
provided on channels 3 and 4.)


FREE LOCK


FREE LOCK


ADJ OPE


ADJ OPE


4ch 2ch


AUDIO MODE


Board retainer


14


SDI output connectors


2


Loosen the two screws at the right end of the front panel of
the CCU-TX7/TX7P, and open the front panel. Remove
the board retainer (two screws).


Clamp


Cables


(Continued)


## Downloaded from www.Manualslib.com manuals search engine


3 Insert the board partly into the slot.


4 Remove the two cables temporarily fixed to the CCU-TX7/
TX7P power supply unit from the clamp, and connect to
the two SDI output connectors on the board. It does not
matter which cable is connected to which connector.


15




# Fitting and Adjustment


## 5 Push the board fully in, and refasten the board retainer, using the two screws removed in step 2.


Board retainer


### 6 Set the SDI POWER switch to ON. (See page 13.)


7 Power on the CCU-TX7/TX7P, and carry out auto level
adjustment. (See page 17.)


### 8 Close the front panel of the CCU-TX7/TX7P, and fasten the screws.


16


### Auto Level Adjustment


1


Power on the CCU-TX7/TX7P, CA-TX7/TX7P, and
camera.


2


On the RCP-TX7 or COU-TX7/TX7P select "BARS".


Color bars appear in the monitor or viewfinder.
3 With a pen or other sharp implement, press the AUTO
LEVEL switch.


The auto level adjustment is necessary to ensure that the video
levels are appropriate. Carry out auto level adjustment in step 6
(page 16) of the procedure under "Fitting and Adjustment".


After a few seconds, when the AUTO LEVEL indicator
lights in green the auto level adjustment is completed.


### Notes


 If the indicator lights in red, check the switch setting on the
board. (See step 1 on page 14.) If the indicator flashes, check
that color bars are being displayed.
 The adjustment values are stored on this board, so
readjustment is not normally required.
However, if the CCU-TX7/TX7P is not used for a long time
(several months), or if the board is installed in a different
CCU-TX7/TX7P, the auto level adjustment must be made
again.


For details of the operating procedures for other devices, refer to the
operating instructions supplied with each device.


17


### Downloaded from www.Manualslib.com manuals search engine




||
|---|
||


# Specifications


Power consumption
Operating temperature
Mass
Dimensions


Output signal


4.5 W


5°C to 40°C (41°F to 104°F)
330 g (11 oz)
17 × 148 × 277 mm (11/16 × 5 7/8 × 11
inches) (w/h/d, excluding
projections)
SDI output connectors
SDI format (270 Mbps)
SMPTE 259M (CCU-TX7)/
CCIR 656-III (CCU-TX7P)


18


## Downloaded from www.Manualslib.com manuals search engine




# SECTION 2 INSTALLATION


## 2-1. CONNECTORS AND CABLES


## 2-1-1. Connector Input/Output Signals


The connector input/output signals are described below.


## 1. Rear panel


BNC connector: 75 Z


## [Input signals]


- . GENLOCK (BNC)

- . RETURN VIDEO 1/2 (BNC) :

- . PROMPT VIDEO (BNC) :

- . SPARE (BNC) *1


: VBS/BS, 1.0 V p-p
VBS, 1.0 V p-p
VBS, 1.0 V p-p
:RM Video Input
VBS, 1.0 V p-p


## [Output signals]


- . R (BNC) *2 : 700 mV p-p . G (BNC) *2 : 700 mV p-p . B (BNC) *2 : 700 mV p-p . Y (BNC) *2 : 1.0 V p-p . R-Y (BNC) *2 : 700 mV p-p : 525 mV p-p . B-Y (BNC) *2 : 700 mV p-p : 525 mV p-p . C (BNC) *2 : 286 mV p-p (for CCU-TX7) : 300 mV p-p . PIX (BNC) : 1.0 V p-p

- . VBS 1/2 (BNC) : 140 IRE

- . SYNC (BNC) : VBS, 0.3 V p-p,

- . WF (BNC) : 700 mV p-p (Encoded output : 1.0 V p-p)

- . SDI OUT (BNC) : 800 mV p-p


(for CCU-TX7)
(for CCU-TX7P)
(for CCU-TX7)
(for CCU-TX7P)
(burst)


(for CCU-TX7P)


negative


- *1:Located on the OUTPUT connector block of the rear panel for the unit with the following Serial Nos. Serial No. 13016 and higher (UC) Serial No. 42930 and higher (CE)

- *2:R/G/B, Y/R-Y/B-Y, Y/C selection (Selectable with S800, S801 on the ES-20 board)


## [Input/Output signals]


- . TRIAX : King type (for CCU-TX7) Fischer type (for CCU-TX7P)

- . COAX (BNC)

- . MIC OUTPUT CH1/CH2 (XLR 3P, MALE)


## (EXTERNAL VIEW)


|No.|Signal|Specifications|
|---|---|---|
|1|MIC OUT (G)|0 dBu/ _20 dBu|
|2|MIC OUT (Y)|(Selectable with MIC switch on AA-90|
|3|MIC OUT (X)|board)|


(0 dBu = 0.775 Vrms)


. WF MODE (4P, FEMALE)


4 1
3 2


## (EXTERNAL VIEW)


## No. Signal


1 SEQ CONT OUT (G)
2 SEQ CONT OUT (X)
3 STAIR CASE OUT (X)
4 STAIR CASE OUT (G)
∗1) Stair Case signal


(0 dBu = 0.775 Vrms)
Specifications
OPEN COLLECTOR


∗1)


GND for STAIR CASE


10 ±2 V


R GB DC0 ±2 V


CCU-TX7 (E)/V1 2-1


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# . INTERCOM/TALLY (D-Sub 25P, FEMALE)


13


1


1


13


25


14


25


14


## (EXTERNAL VIEW)


## (EXTERNAL VIEW)


## (0 dBu = 0.775 Vrms)


## (0 dBu = 0.775 Vrms)


## No. Signal


## Specifications


## No. Signal


## Specifications


1 CHASSHIS GND
2 TXDATA
3 RXDATA


This is based on RS-232C
specification.
38,400 bps or 9600 bps Switchable
by the internal switch on the
CT-181 board of CCU.


ON : 24 V DC/TTL (H)/SHORT
OFF : 0 V DC/TTL (L)/OPEN
ON : 24 V DC/TTL (H)/SHORT
OFF : 0 V DC/TTL (L)/OPEN
GND for INTERCOM REMOTE


1 GREEN TALLY (Y) IN
14 GREEN TALLY (X) IN
2 RED TALLY (Y) IN
15 RED TALLY (X) IN
3 GND
16 CAM MIC OFF IN
4 CH2 INT IN
17 CH1 INT IN
5 4W CH2 (R) (G) OUT
18 4W CH2 (R) (Y) OUT
6 4W CH2 (R) (X) OUT
19 4W CH2 (T) (G) IN
7 4W CH2 (T) (Y) IN
20 4W CH2 (T) (X) IN


|8|2W CH2 (G) IN/OUT|2W CH2 SYSTEM 0 dBu|
|---|---|---|
|21|2W CH2 (X) IN/OUT|Recommended Term. imp.= 600 Z|
|9|4W CH1 (R) (G) OUT|4W CH1 SYSTEM RECEIVE|
|22|4W CH1 (R) (Y) OUT|0 dBu BALANCED|
|10|4W CH1 (R) (X) OUT||
|23|4W CH1 (T) (G) IN|4W CH1 SYSTEM TALK|
|11|4W CH1 (T) (Y) IN|0 dBu BALANCED|
|24|4W CH1 (T) (X) IN||
|12|2W CH1 (G) IN/OUT|2W CH1 SYSTEM 0 dBu|
|25|2W CH1 (X) IN/OUT|Recommended Term. imp.= 600 Z|
|13|CHASIS GND||


4 RTS
5 CTS
6 DSR
7 GND
20 DTR


1. : CAM INCOM MIC OFF


L: CH2 INTERRUPT ON
L: CH1 INTERRUPT ON
4W CH2 SYSTEM RECEIVE
0 dBu BALANCED


4W CH2 SYSTEM TALK
0 dBu BALANCED


2-2


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## . RS-232C CH1/CH2 (D-Sub 25P, FEMALE)


## . REMOTE (10P FEMALE)


8 1


7


2


10 9


6


3


5 4


## (EXTERNAL VIEW)


## Specification


-


VBS, 1.0 V p-p


## No. Signal


1 (SPARE)
2 RM VIDEO OUT (X) *
3 RM VIDEO OUT (G) *
4 S. DATA (RCP → CCU)
5 S. DATA GND


RX DATA equivalent
communication rate that is
based on RS-232C
specification is 38,400 bps.
TX DATA equivalent
communication rate that is
based on RS-232C
specification is 38,400 bps.
output the RM video out signal.


|8|(SPARE)|-|
|---|---|---|
|9|POWER +12.5 V DC GND|GND for +12.5 Vdc|
|10|POWER +12.5 V DC OUT|10.6 V to 17.0 Vdc|


6 S. DATA GND
7 S. DATA (CCU → RCP)


*:The units with the following Serial Nos.
Serial No. 13016 and higher (UC)
Serial No. 42930 and higher (CE)


CCU-TX7 (E)/V1




# . PGM IN (XLR 3P, FEMALE)


## 2. Front panel


## . INTERCOM (XLR 5P, FEMALE)


## (EXTERNAL VIEW)


|No.|Signal|Specifications|
|---|---|---|
|1|PGM IN (G)|0 dBu/ _20 dBu|
|2|PGM IN (X)|(Selectable with PGM switch on AA-90|
|3|PGM IN (Y)|board)|


## . RTS IN/OUT (XLR 3P, FEMALE ↔ MALE) FEMALE MALE


Loop-through


(EXTERNAL VIEW)


(EXTERNAL VIEW)


|No.|Signal||Specifications|
|---|---|---|---|
|1|GND||0 dBu/ _10 dBu (Clear-Com)|
|2|RTS CH2 (X)||Current drive|
|3|RTS CH1 (X)||Recomended Term. lmp.= 200 Z|


. DC IN (XLR 4P, MALE)


## (EXTERNAL VIEW)


No. Signal


1 INCOM (T) (G) IN
2 INCOM (T) (X) IN
3 NCOM (R) (G) OUT
4 INCOM (R) (X) OUT
5 PGM (X) OUT


## (0 dBu = 0.775 Vrms)


## Specifications


_60 dBu (DYNAMIC MIC)
_20 dBu (CARBON MIC)
GND for HEADPHONE
_0 dBu (Max. 18 dBu)


|No.|Signal|Specifications|
|---|---|---|
|1|GND|GND for DC (+)|
|2|(SPARE)|-|
|3|(SPARE)|-|
|4|DC (+) IN|DC 10.5 V to 17 V|


## (EXTERNAL VIEW)


CCU-TX7 (E)/V1 2-3


Downloaded from www.Manualslib.com manuals search engine




# 2-1-2. Connection Connector


Use the connectors below or the equivalent at its tip when
cables are connected to each connector on the connector
panel during installation and servicing.


## Connector name


## Connected connector/cable


GENLOCK VIDEO 1, 2
RETURN VIDEO
PROMPT VIDEO
R/R-Y/C 1, 2
G/Y/Y 1
B/B-Y 1, 2
WF
PIX
VBS 1/2
SYNC
COAX
(BNC type)


|INTERCOM/TALLY|D-Sub, 25-pin male,|
|---|---|
|RS-232C CH1/CH2|JAE DA-25PF-N or the|
|(25P, FEMALE)||
|WF MODE|1-560-343-11 male|
|(4P, FEMALE)||
|REMOTE|1-766-848-11 male, or|
|(10P, FEMALE)|CCA cable|
||CCA-7-5 with RCP-TX7)|
||(50 m max.)|
|INTERCOM|1-508-370-11 XLR, male,|
|(5P, FEMALE)|or CANNON XLR-5-12-C or the|
||equivalent|


1-560-069-11 plug,


BNC, or B-B cable assembly


(1.5 m in cable length, optional)


MIC CH1/CH2
RTS
(3P, MALE)


1. -508-083-00 XLR, 3-pin FEMALE or CANNON XLR-3-11C or the equivalent


1-508-084-00 XLR, 3-pin
MALE or
CANNON XLR-3-12C
or the equivalent


PGM IN
RTS


## 2-1-3. Wiring Diagram for Cable


. CCA-7 cable


Blue


White
Orange


Black
Green


8 1
7 2
910


8 1
7 2
910


6


6


3
5 4


3
5 4


White
Brown


White
Red


Yellow


## 2-2. MAKING OF WF MODE CONNECTOR


. When connecting plug to wave form monitor, make the
plug as follow.


PLUG (4P) (Sony part No. 1-560-343-11)


To wave form monitor
(REMOTE)


4 1
3 2


(EXTERNAL VIEW)
GROUND


4


1


3


2


(WIRING SIDE)


STAIR CASE
SEQ CONT


2-4


Downloaded from www.Manualslib.com manuals search engine


CCU-TX7 (E)/V1




# 2-3. COAX CONNECTOR


The COAX connector (BNC type) can be used for connection
between the CCU and the CA with a BNC cable instead of a
triaxial cable. In this case, supply the power source from
outside to the CA side.
And for the CA side, it is needed to modify the TRIAX
harness to the COAX harness.
For the CCU, the following modification is required.
Disconnect the RF cable from the CN3 on the IO-141 board
and reconnect it to the CN4.


RF cable


IO-140 board


|||||light.||||
|---|---|---|---|---|---|---|---|
|||||||||
||CN4|||||||


## 2-4. OPERATING ENVIRONMENT


Operating temperature : +5 dC to +40 dC
Storage temperature : _20 dC to +55 dC
Humidity : Noncondcnsing
Supply voltage : 100 V to 240 V ±10%
Power consumption : 95 W (maximum)


(50/60 Hz)


1. Do not put the unit in a place subject to high temperature or in a location near hear sources.

2. Do not put the unit in a place subject to excessive electrical and magnetic fields.

3. Put the unit in a dry and well-ventilated place.

4. Do not put the unit in a place subject to excessive dust and mechanical shock.

5. Do not put the unit in a place subject to direct sunlight and


8 200 9.5
217.5


(Unit: mm)


CCU-TX7 (E)/V1 2-5


Downloaded from www.Manualslib.com manuals search engine




# 2-5. MOUNTING ON 19-INCH RACK


Two CCU-550s can be mounted on a 19-inch EIA standard
rack in parallel by using rack mount adaptor RMM-TXC7
(optional).


## Mounting


1. Tighten the four rack mount screws.


RMM-TXC7


B5 screws
(60 mm or more long)


2. Mount the CCU-TX7/TX7P on the rack mount adaptor
as shown in the figure below and tighten the four fixing
screws (supplied for RMM-TXC7).


|||
|---|---|
||Screws Screws|


2-6


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CCU-TX7 (E)/V1




# 2-6. SWITCH FUNCTIONS ON BOARD


## CT-181 board


LV3 E13
S2002


TP22


PROMPT


CN7


S1001
PANEL
SELECT


S1004 RX TX
RS232C-2


CN8
PROMPT RF RX


IF BOARD


PANEL
REMOTE


TP1001


LOCAL


TP2001


E16
TP2003 TP2002 TP2004


CONTROL MODE
NORMAL


SLAVE


TP2005


CT-181 Board (A SIDE)


E1001


TP2006


RET FREQ
CV1


CT-181 R TALLY
R TALLY
CONTACT


S2011


CONTACT
POWER


TP1000


POWER


E12


DC24V


RF AGC DLY
RV22


S2013


DC24V
TTL
G TALLY
CONTACT
POWER


E1000


TTL
R TALLY
CONTACT
G TALLY
POWER
DC24V
G TALLY
TTL
MIC 1 GAIN
SW1000
SW1001
MIC 2 GAIN


PROMPT FREQ


S2012


RV23
PROMPT LEVEL


PROMPT TUNE


DC24V
TTL


S2014


MIC GAIN
NORM CH-1
MIN
MAX
NORM CH-2
MIN
MAX


NORM
CONT MODE
SLAVE
S1002


- . S1000 This switch is for the adjustment in the factory. Factory setting : All OFF

- . S2002 (PROMPT SELECT TX/RX) TX :When selecting the TX mode, the CCU modulates the VBS signal input to the PROMPT VIDEO IN connector on the CCU-TX7/TX7P, and modulated signal is sent to the CA-TX7/TX7P. RX : When selecting the RX mode, the CA modulates


the VBS signal input to the PROMPT VIDEO IN
connector on the CA-TX7/TX7P, and modulated
signal is sent to the CCU-TX7/TX7P.
Note : When using this switch, change as follows.
.
In case of using the TX mode (TX side) ;
1) Disconnect CN8 and connect CN3 and CN7
on the CT-181 board.
2) Set S1 and S6 switches to "PROMPTER" side
on the YD-25 board of CA-TX7/TX7P.
. In case of using the RX mode (RX side) ;
1) Disconnect CN7 and connect CN3 and CN8
on the CT-181 board.
2) Set S1 and S6 switches to "AUX" side on the
YD-25 board of CA-TX7/TX7P.
Factory setting : TX


- . S1001 (PANEL REMOTE/LOCAL) When the RCP or COU is connected, the connected one is selected in spite of PANEL setting. Also, when both RCP and COU are connected, RCP or COU is selected according to the PANEL (REMOTE/ LOCAL) setting. Factory setting : REMOTE Note : RCP : Remote Control Panel RCP-TX7 COU : Camera Operation Unit COU-TX7

- . S1002 (CONTROL MODE NORMAL/SLAVE) The RCP is only connected or both RCP and COU are connected and then the S1001 switch is set to REMOTE side. In this case, the RCP is valid, and this S1002 switch is invalid. The COU is only connected or both RCP and COU one connected, and then the S1001 switch is set to LOCAL side. In this case, the COU is valid, and this S1002 switch is used as follows ; NORMAL : COU can be used SLAVE : The operation of CCU can be used. COU can not be used. Factory setting : NORMAL

- . S1004 This switch is used to change the RS-232C and IF BOARD. Factory setting : RS-232C side

- . S2011 (R TALLY POWER/CONTACT)

- . S2013 (R TALLY DC24 V/TTL) These switches are set according to the signal standard of the R TALLY signal input to the INTERCOM/TALLY/ PGM connnector on the CCU rear panel. For the relation between the signal and switch setting, refer to the table below. Factory setting : (S2011) POWER (S2013) DC 24 V

- . S2012 (G TALLY POWER/CONTACT)

- . S2014 (G TALLY DC 24 V/TTL) These switches are set according to the signal standard of the G TALLY signal input to the INTERCOM/TALLY/ PGM connector on the CCU rear panel. For the relation between the signal and switch setting, refer to the table below. Factory setting : (S2012) POWER (S2014) DC 24 V


|Switch||Signal|method|
|---|---|---|---|
|||Power|V) TTL (+5 V)|
|S2011, S2012||Power|Power|
|S2013, S2014|DC 24 V or|DC24 V|TTL|


- . SW1000 (MIC GAIN ... CH1)

- . SW1001 (MIC GAIN ... CH2)


Use these screws to adjust the microphone amplifier gain
for the camera adaptor. The standard level (NORM) is 0
dB, and the gain setting can be adjusted to any of 16 levels
from _12 dB (MIX) to +12 dB.


CCU-TX7 (E)/V1 2-7


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# AA-90 board


T201


T301


E12


## AA-90


TP9
TP12


TP44


PGM IN
0dB
-20dB
MIC 1 LEVEL
0dB
-20dB
MIC 2 LEVEL
0dB
-20dB
MIC TEST
CH-1
CH-2
OFF
LEVEL IND


T401


E10


TP15


TP43


TONE TUNE


LV101 5.6M TUNE


TP7


LV21


LV61 LV41
4.3M 3.6M


1. CCU DATA


E11


E1


TP46


LV1 3.0M
H CONT


INTER COM
2W
(CLEAR ) RTS
COM
4W
RTS
CLEAR
COM


TP3005


TP3002


E3001


TP3004


RV2000
SIDE TONE


TP3003


AA-90 Board (A SIDE)


## Intercom select switches (S2002, S2003, S2005, S2007)


- . S2002 (INCOM SELECT 2W/RTS/4W) Select according to the intercom system. Factory setting : 4W

- . S2003 (INCOM MODE 1CH/2CH) Set to 1CH or 2CH according to the intercom system. The interface circuit of CH1 side only works with the switch set to 1CH position. Factory setting : 2CH

- . S2005 (RTS/Clear-Com) This switch selects RTS or Clear-Com position when the S2002 switch is set to RTS position. Factory setting : RTS

- . S2007 (RTS CH REV STD/REV) Applicable Serial No. 10801 and Higher [UC] Applicable Serial No. 40136 and Higher [CE] This switch allows RTS input/output to be switched between CH1 Factory setting : STD


(PROD*1) and CH2 (ENG*2) when it sets to REV.


- *1 : Corresponds to PROD side of the intercom selector switch for CCU-550, CCU-550P and so on.

- *2 : Corresponds to ENG side of the intercom selector switch for CCU-550, CCU-550P and so on.


Set the S2002, S2003, S2005 and S2007 switches to the positions shown in the table below, according to


the intercom system.


X : Don't care


|Intercom system to be|S2002|S2003 S2005 S2007|Remarks|
|---|---|---|---|
|4-wire system|4W|2CH X X||
|2-wire system|2W|2CH X X||
|RTS TW (2CH)|RTS|2CH RTS REV|CH1 (CCU) 5 CH1 (RTS)|
||||CH2 (CCU) 5 CH2 (RTS)|
|||STD|CH1 (CCU) 5 CH2 (RTS)|
||||CH2 (CCU) 5 CH1 (RTS)|
|Clear-Com 1 ch system|1CH|Clear-Com STD||
|Clear-Com TW system|2CH|Clear-Com REV||


2-8


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CCU-TX7 (E)/V1




- . S201 (MIC 1 LEVEL) This switch sets the audio signal level of the MIC OUTPUT CH-1 connector on the CCU rear panel to 0 dBu or _20 dBu. Factory setting : 0 dBu

- . S301 (MIC 2 LEVEL) This switch sets the audio signal level of the MIC OUTPUT CH-2 connector on the CCU rear panel to 0 dBu or _20 dBu. Factory setting : 0 dBu

- . S2004 (MIC TEST) This switch is for mixing the MIC (1 or 2) audio from the CA-TX7/TX7P with the program audio (PGM) and for monitoring the audio. CH-1 : MIC 1 audio mixes to the program audio. CH-2 : MIC 2 audio mixes to the program audio. OFF : MIC 1 audio and MIC 2 audio do not mix to the program audio. Factory setting : OFF

- . S2006 (RTS 200 Z ON/OFF) This switch sets to ON or OFF position for 200 Z termination in the RTS system. Usually, this switch sets to OFF position because the RTS system has 200 Z termination. Factory setting : OFF

- . S2081 (PGM IN) This switch sets the PGM (program audio) level to 0 dBu or _20 dBu. Factory setting : 0 dBu


CCU-TX7 (E)/V1 2-9


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# YD-26 board


TP26
TP10


E5


YD-26 Board (A SIDE)


SAMPL GATE
RV3


E1 RV1
Y AGC CONT


SAMPL S/H
E2 RV4


TP11
Y LEVEL
RV9
E6
RV17
R-Y LEVEL


TP2
TP5 TP8
TP4 TP7
Y RF TUNE
TP6
RV2 RV5
LV1
BLACK S/H SYNC S/H
TP3 S4
C 2'nd AGC
E7
B-Y CARR BAL
TP13 TP14 RV11


Y OFFSET ADJ


RV8


## YD-26


RV6
VCO DC SET


Y 2'nd AGC


S3


TP9


TP12


TP17


RV12


1. -Y LEVEL


E8


E9


## R-Y CARR BAL RV16


TP19


1. 


TP15


RV10
C AGC CONT


RV18
90° SET


RV13 RV14 RV15
OFFSET ADJ PLL SET C CAR LEV


E16


TP1 E4


S2
CABLE LENGTH
S1


E3


TP21 TP20


- . S1 (MODE AUTO/MANU) The length of a triax cable connecting the camera head and CCU is automatically detected and set when this switch is set to AUTO. The triax cable length can be manually set using S2 (CABLE LENGTH SELECT) when this switch is set to MANU (MANUAL). Factory setting : AUTO


|Switch|Cable length (center value)|
|---|---|
|0|100 m|
|1|300 m|
|2|500 m|
|3|700 m|
|4|NOT IN USED|


- . S3 (Y-ch 2nd AGC ON/OFF)

- . S4 (CHROMA-ch 2nd AGC ON/OFF) These switches are used for RF AGC adjustment. Usually, set these switches to ON.

- . S2 (CABLE LENGTH SELECT) This switch is valid when S1 is set to MANU. This switch is set to the number corresponding to the cable length. Factory setting : 0 (100 m)


2-10


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CCU-TX7 (E)/V1




# ES-20 board


Y LEVEL (VBS)
SYNC LEVEL (VBS) RV804


CHROMA LEVEL
RV810


SYNC WIDTH
RV3
RV2
SYNC PHASE


RV803 RV802


E3


## ES-20


Y LEVEL(COMP)


## PHASE


RV801
SYNC LEVEL(COMP)


RV800
Y SETUP LEVEL
(NTSC ONLY)


RV7 H PHASE


H


SC


RV6 SC PHASE


RV4 TP1
SC FREQUENCY


0


180°


RV812
B-Y LEVEL


RV5
SC-H PHASE


OUT PUT 1
R/G/B


Y/R-Y/B-Y
Y/C
OUT PUT 2
R/G/B
Y/R-Y/B-Y
Y/C


E1


G MAT BAL2 B WHT BAL R WHT BAL
RV506 RV505 RV500


S1


TP501


RV508


RV507
G MAT BAL1
G LEVEL TP502
R MAT BAL
RV509
RV510 R LEVEL TP503
B MAT BAL
RV512
RV513 B LEVEL


TP7
TP5
TP4
TP2
TP3


## R-Y BLK BAL RV501


POSITION


RV511
R DC BAL


## R-Y GAIN ADJ RV502


RV1000
LEVEL


RV514
B DC BAL


RV504 RV503
B-Y GAIN ADJ B-Y BLK BAL


ES-20 Board (A SIDE)


- . S1 (V BLKG 19H/20H/21H) ... NTSC only This switch sets the V blanking width to 19H, 20H, or 21H. Set this switch according to the application. Factory setting : 20H

- . S2 (H BLKG) This switch is used for H blanking width adjustment. During factory setting, this switch is set so that the H blanking with is 10.9 ±0.2 usec. Set this switch according to the application.

- . S3 (SC 0d/180d) This switch is used for the adjustment of subcarrier phase between the input video signal (GEN LOCK IN) and output video signal (VBS OUT). The SC phase can be selected to 0d or 180d. Factory setting : 0d

- . S801 (OUTPUT 2 SELECT) . R/G/B . Y/R-Y/B-Y . Y/C This switch selects the signals of the G/R/B, Y/R-Y/B-Y, and Y/C to output the OUTPUT 2 connectors on the CCU rear panel. Factory setting : R-Y/Y/B-Y

- . S1000 (SEQ ON +/_) Set this switch to + or _ position according to the waveform monitor to be used. + : NPN open collector output _ : PNP open collector output Factory setting : +

- . S800 (OUTPUT 1 SELECT) . R/G/B . Y/R-Y/B-Y . Y/C This switch selects the signals of the G/R/B, Y/R-Y/B-Y, and Y/C to output the OUTPUT 1 connectors on the CCU rear panel. Factory setting : R-Y/Y/B-Y


CCU-TX7 (E)/V1 2-11


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DU-33 board
[For the Serial No. 10601 and Higher (UC)]
[For the Serial No. 40251 and Higher (CE)]


|OFF ON||
|---|---|
|CN1 S1 RV1|CN3 CN4 S4|
|||
|. S1 (WIDE ID ON/OFF)|CALL ON CH1|
|Set this switch to ON position when the 16:9 compatible|S1 S3 PRI VATE|
|camera is connected and used in the 16:9 mode.|ON S2 OFF RV1 CH2 RV2|
|Factory setting : ON|OFF S5|


# AU-234 board


CARBON DINAMIC


AU-234 Board (A SIDE)


- . S5 (DYNAMIC/CARBON) Set this switch according to the type of the headset microphone connected to the INTERCOM connector on the front panel. DYNAMIC : Dynamic type microphone CARBON : Carbon type microphone Factory setting : DYNAMIC

1. -12


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CCU-TX7 (E)/V1




# SDI-44 board


TP810


## SDI-44


RV1401 RV1400


ALARM


B-Y DC B-Y LEVEL


TP1400


D201


S701
LOCK FREE


RV1501 RV1500


RV701


R-Y DC R-Y LEVEL


TP1500


TP702


CN2


S601
OPE ADJ


TP1201 E201


TP1300 RV1301 RV1300
Y DC Y LEVEL


TP701


CN3


AUTO LEVEL
(BARS)


E1001


SDI POWER
ON
OFF


RV904


RV903


TP902


RV901


TP901 RV902


SDI-44 Board (A SIDE)


- . S701 (for factory adjustment) Factory setting: LOCK

- . S601 (ADJ/OPE) This switch is used for returning the level control values of the R-Y and B-Y video signals to the factory setting. Set this switch to ADJ position and turn on the power to the main unit. Alternatively, set this switch to ADJ position and press the AUTOLEVEL (BARS) switch. Usually, set this switch to OPE position. Factory setting : OPE

- . S401 (AUDIO MODE) Set this switch sets to 4CH position when the units is connected to an equipment with cannot receive SDI audio in 2CH mode. It is impossible to send audio signals to channels 3 and 4 even if this switch is set to 4CH. Usually, set this switch to 2CH position. Factory setting : 2CH


CCU-TX7 (E)/V1 2-13


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# SECTION 3 SERVICE INFORMATION


## 3-1. BOARD LAYOUT


IO-140 board
CN-1327 board MB-693 board
CN-1351 board SDI-44 board (DXBK-701)
CN-1325 CT-181 board
board AA-90 board
YD-26 board
ES-20
board


## 3-2. DISASSEMBLY/INSTALLATION OF MAIN PART


## 3-2-1. Removal of Cabinet


2.


## Step shaft


+K 3x6


CCU-TX7(E)/V1 3-1


(1) Removal of Front Panel


1.


Front panel


CN-1328 board


CN-1350 board


SW-892
board
(COU-TX7)
board


Switching regulator
AU-234


Loosen
two coin
screws


Connector


Connector


AU-234 board


Front panel


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# (2) Removal of Cover


Top cover


1. Remove four screws (K3x6) and disconnect CN1 on the IO-140 board and CN10, CN19 and CN20 on the MB- 693 board. Remove the rear panel.


B 3x5


Connector (CN10)


B 3x5


MB-693 board


Connector (CN1)


IO-140 board


B 3x5


K 3x6


Bottom cover


B 3x5


Connector (CN19)
Connector (CN20)


Rearpanel


## 3-2-2. Replacement of Switching Regulator


[For the Serial No. 10001 through 11000 (UC)]
[For the Serial No. 40001 through 41000 (CE)]


1. Remove the top and bottom covers. (Refer to "3-2-1. Removal of Cabinet".)


K 3x6


B 4x5


B 4x5


B 4x5


Switching regulator


1. Remove six screws (B4x5) and switching regulator.


3-2


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4. When installing a new switching regulator, reverse the
above procedures.


CCU-TX7(E)/V1




[For the Serial No. 11001 and Higher (UC)]
[For the Serial No. 41001 and Higher (CE)]


1. Remove the top cover. (Refer to "3-2-1. Removal of Cabinet".)

2. Remove four screws (K3x6) and disconnect CN1 on the IO-140 board and CN10, CN19, CN20 and CN28 on the MB-693A board. Remove the rear panel. 3. Remove four screws (PSW3x20) and remove the fan.


Fan


PSW 3x20
A
Connector (CN10)
Connector (CN1)


IO-140 board


MB-693A board


K 3x6


A


Connector
(CN28)


Connector (CN19)


Rearpanel


K 3x6


Connector (CN20)


4. Remove six screws (B4x5) and switching regulator.


B 4x5


B 4x5


B 4x5


Switching regulator


# 3-2-3. Replacement of Fan


[For the Serial No. 11001 and Higher (UC)]
[For the Serial No. 41001 and Higher (CE)]


- n

- . When the fan is out of order, the CAMERA POWER indicator is blinking. Turn off the power immediately and replace the fan. Using the defective fan may reduce the service life of the equipment extremely.

- . Before replacing the fan, be sure to turn off the power switch and unplug the power cord.

1. Perform steps 1 to 3 in Section "3-2-2. Replacement of Switching Regulator" for the Serial No. 11001 and higher (UC), Serial No. 41001 and higher to remove the fan.

2. Install a new fan in the reverse order.


# 3-2-4. Removal of COU-TX7


As for installing of COU-TX7, refer to "Installing the Camera
Operation Unit" of service manual SECTION 1.


5. When installing a new switching regulator, reverse the
above procedures.


CCU-TX7(E)/V1 3-3


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# 3-3. CIRCUIT DESCRIPTION


## CT-181 board


CT-181 board employs RF system circuit that is consists of
RETURN VIDEO modulation circuit and PROMPT VIDEO
modulation circuit (It becomes AUX VIDEO demodulation
circuit by switching.) and microcomputer system circuit that
controls the system.


Microcomputer system circuit section :
The program is written in the ROM (IC1022) that is inserted
to socket (CNI 1). ROM of built-in microcomputer is not
used. Input and output of control signals between each board
in CCU (included in COU) and each board are performed by
serial data of 16 bit via I/O EXPANDER (IC1028). There are
four communication channels with outside. The SCI-1 and
SCI-2 built-in microcomputer communicate with CA (via
modulation and demodulation circuit ) and RCP (via RS-232C
driver). The external SCI (IC1024 and 1025) communicates
with command link (RS-232C-1 and RS-232C-2 on the rear
panel).


The RF system circuit section :
RETURN VIDEO modulation circuit frequency-modulates
the input signal (VBS) from RETURN VIDEO 1 or 2, and
sends to the CA. Change of RETURN VIDEO 1 or 2 is
switched by RETURN 1 and 2 changing switch on the CA.
The PROMPT VIDEO modulation circuit amplitude-
modulates the input signal (VBS) from PROMPT VIDEO on
the rear panel, and sends to the CA. The PROMPT VIDEO
modulation circuit becomes AUX VIDEO demodulation
circuit by switching S2002 and connecting RF coaxial cable to
CN3 and CN8. (It is needed to change on the YD-25 board of
CA.)
Demodulated AUX VIDEO is outputted from PROMPT
VIDEO on the rear panel.


## AA-90 board


This board demodulates the RF signal of MIC1, MIC2,
INCOM, CAM DATA and TONE sent from the CA,
modulates a PGM signal, the INCOM signal and control data
send to the CA. And also, this board switches the INCOM
line, and switches the input /output of each audio signals.


3-4


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## YD-26 board


YD-26 board demodulates Y, R-Y, B-Y, CAM SYNC and
SKIN GATE. This circuit consists of cable length detection
circuit, cable length compensation circuit and these
demodulation circuits. The cable length detection detects
from amplitude of Y modulated wave. In accordance with
this, the cable compensation circuit compensates the
amplitude and phase matching as cable length to modulated
wave of Y or differential signal. After that, they are
respectively demodulated in demodulator circuit.


## ES-20 board


This board produces VBS and RGB signal from the Y, R-Y,
and B-Y signals sent from the YD-26 board, switches these
signals, and outputs them as WF and PIX signals. This
board also generates each sync signal and color bars signal.


## AU-234 board


This board inputs and outputs an INCOM signal on the front
panel, displays tally signals, and turns on and off the power
of camera.


## IO-140 board


This board mixes the RF signal between CA and CCU with
the power of the camera.


## SDI-44 board (DXBK-701)


This board converts the analog video/audio signals into
digital signals and outputs them as SDI signals.


Video signal processing :
Y, R-Y and B-Y signals sent from the ES-20 board are
converted from analog to digital and subject to the double
over-sampling process on the digital filter IC308.


Audio signal processing :
MIC1 and MIC2 signals sent from the AA-90 board are
converted from analog to digital and subject to 64 times
over-sampling process on IC904 and then subject to time-
base compression on IC404.


These digital video signals and the time-base compressed
digital audio signals are mixed on IC413. After that, the
parallel data is converted to serial data on IC702 and output
from this board.


CCU-TX7(E)/V1




# 3-4. EXTENSION OF DXBK-701 (SDI-44 BOARD)


1. Disconnect two coaxial cables from the SDI-44 board.

2. Extend the SDI-44 board with the EX-564 board.


To confirm the SDI signal output with the SDI-
44 board extended:


Preparation:
1 Coaxial connector converter : Sony part No. 1-750-881-11
2 Coaxial cable assembly : Sony part No. 1-765-112-12
3 BNC cable : BELDEN 8281 cable or
equivalent


Connect 1 Coaxial cable assembly, 2 Coaxial connector
converter, and 3 BNC cable as shown below.


Coaxial cables
SDI-44 board


EX-564 board


2 Coaxial cable
assembly


1 Coaxial
connector
converter


3 BNC cable


Equipment,
Monitor


CCU-TX7(E)/V1 3-5


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# SECTION 4 ADJUSTMENT


## 4-1. Preparation


## 4-1-1. Equipment Required


- . Oscilloscope (more than 300 MHz) Tektronix 2465 or equivalent

- . Waveform monitor/Vectorscope Tektronix 1765 or equivalent . Color monitor Sony PVM-1354Q or equivalent (For NTSC) Sony PVM-1454QM or equivalent (For PAL)

- . Video signal generator Tektronix 1410 or equivalent (For NTSC) Tektronix 1411 or equivalent (For PAL) (Color Bar signal, 10 STEP signal, SWEEP signal) . Video camera Sony DXC-637 or DXC-D30 (NTSC) Sony DXC-637P or DXC-D30P (PAL) . Remote control Unit Sony RCP-TX7 (or COU-TX7 : Camera Operation Unit) . Digital voltmeter . Frequency counter . Audio generator . Spectrum analyzer . TRIAX Cable


## 4-1-2. Fixture


Sony part number :


Sony part number :


J-6276-420-A


J-6276-430-A


Extension board
EX-564 (For CCU-TX7/TX7P)


Extension board
EX-565 (For CA-TX7)


|||AA-90 S201|0 dBu|
|---|---|---|---|
|||S301|0 dBu|
|||S2002|4W|
|||S2003|2CH|
|||S2004|OFF|
|Pattern box PTB-500||S2005|RTS|
|||S2006|OFF|
|Sony part number :||S2081|0 dBu|
|||||
|.||||
|||||
|||S3|ON|
|||S4|ON|
|||ES-20 S1|20H (NTSC only)|
|||S2|⋅⋅⋅|
|||S3|0°|
|||S800|R-Y/Y/B-Y|
|||S801|R-Y/Y/B-Y|
|||S1000|+|


## 4-1-3. Notes on Adjustment


## CAUTION


- . When performing STAIR CASE adjustment, connect the WF MODE connector of CCU-TX7/TX7P rear panel to the remote control connector of waveform monitor with the connecting cord. (Refer to Section 2, 2-2. "Making of WF MODE Connection")

- . Do not turn the following adjusting core on the YD-26 and CT-181 boards. Replace a new one when a filter is faulty. Filters on the YD-26 board and CT-181 board FL1, FL2, FL4, FL5, FL6, FL7, FL8, FL9, FL10, FL11, FL12, FL13, FL14, FL15 The adjustment is not required after replacing.


## 4-1-4. Switch settings


When switching the following switches from a customer-set
position, it is recommended to record the setting state of the
customer in the table below.
After adjustment is complete, be sure to return the switches
to their customer-set position.


|Board Switch|Setting during Customer-set|
|---|---|
||adjustment position|
|CT-181 S1000|All OFF|
|S1001|REMOTE|
|S1002|NORMAL|
|S1004|All RS-232C side|
|S2002|TX|
|S2011|POWER|
|S2012|POWER|
|S2013|DC 24 V|
|S2014|DC 24 V|


CCU-TX7 (E)/V1 4-1


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# 4-1-5. Connections


CAMERA
ADAPTOR
CA-TX7/TX7P


TRIAX CABLE
(30~750m)


COLOR VIDEO
CAMERA


1. -D30/D30P


DXC-637/637P


Waveform monitor


A-ch PIX


Vector scope


CCA-7 CABLE


75Z


|Color monitor|75Z|
|---|---|
|connections Audio generator RCP-TX7 Audio generator||
|LEVEL 600Z ADJ (X) LEVEL 600Z ADJ||
|||


CAMERA CONTROL UNIT
CCU-TX7/TX7P
(CAMERA OPERATION UNIT
COU-TX7/TX7P)


## Audio


Fig-1


Fig-2


1. 


(Y)


GND


4-2


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CCU-TX7 (E)/V1




# 4-2. Video Signal System Adjustment


## 4-2-1. Sub-carrier Frequency Check


Note : Check that the GEN LOCK IN connector of CCU-
TX7/TX7P rear panel is no signal.
Before adjustment, warm up the frequency counter
more than 30 minutes.


Equipment : Oscilloscope, Frequency counter
To be extended : ES-20 board


Adjustment Procedure :


1. Connect the oscilloscope and the frequency counter as
follows.


## 4-2-2. CAM H Phase Adjustment


Equipment : Oscilloscope (CHOP mode)
To be extended : ES-20 board
Preparation :


. S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board
→ "Y/R-Y/B-Y" (Center position)


Test point : CH1 pin 94/extension board
CH2 pin 47/extension board
Adjusting point :1RV1 (CAM H PHASE) /ES-20 board
Specification :T = 0 ±0.05 µs


50%


CH1


50%


T


CH2


2. Test point : TP1 (GND: E1) /ES-20 board
Adjusting point :1RV4 (SC FREQ.)/ES-20 board
Specification : [For NTSC] 3,579,545 ±2 Hz
[For PAL] 4,433,619 ±2 Hz


Y LEVEL (VBS)
SYNC LEVEL (VBS) RV804


CHROMA LEVEL
RV810


SYNC WIDTH
RV3
RV2
SYNC PHASE


RV803 RV802


E3


ES-20
PHASE
H


Y LEVEL(COMP)


RV800
Y SETUP LEVEL
(NTSC ONLY)


RV801
SYNC LEVEL(COMP)


RV7 H PHASE


RV6 SC PHASE


SC


RV4 TP1
SC FREQUENCY


0


180°


RV812
B-Y LEVEL


RV5
SC-H PHASE


OUT PUT 1
R/G/B


Y/R-Y/B-Y
Y/C
OUT PUT 2
R/G/B
Y/R-Y/B-Y
Y/C


E1


G MAT BAL2 B WHT BAL R WHT BAL
RV506 RV505 RV500


S1


TP501


RV508


RV507
G MAT BAL1
G LEVEL TP502
R MAT BAL
RV509
RV510 R LEVEL TP503
B MAT BAL
RV512
RV513 B LEVEL


TP7
TP5
TP4
TP2
TP3


## R-Y BLK BAL RV501


POSITION


RV511
R DC BAL


## R-Y GAIN ADJ RV502


RV1000
LEVEL


RV514
B DC BAL


RV504 RV503
B-Y GAIN ADJ B-Y BLK BAL


ES-20 Board (A SIDE)


CCU-TX7 (E)/V1 4-3


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# 4-2-3. H Phase Adjustment


Equipment : Oscilloscope (CHOP mode)
Video signal generator
(Color Bar signal)
To be extended : ES-20 board
Preparation :


- . Gen-lock .

- . Input color bar signal of video signal generator to the GENLOCK connector on the CCU-TX7/TX7P.


Test point : CH1 pin 78 (GND : pin 77)/
extension board
CH2 pin 100 (GND: pin 99)/
extension board
Adjusting point :1RV7 (H PHASE)/ES-20 board


Adjustment Procedure :


1. Adjust 1RV7 (H PHASE)/ES-20 board so that the width
T1 is 0 ±0.1 µs.


50% Pin 78
(CH-1)


T1


Pin 100
(CH-2)


## 4-2-4. SYNC Phase Adjustment


: Overall white
(white portion of the pattern box)
: Waveform monitor
: ES-20 board


Object


Equipment
To be extended
Preparation :


- . Adjust the zoom control at "TELE" so that the white pattern feame matches the underscanned picture frame on the screen.

- . In case of RCP-TX7 IRIS AUTO Button (Control panel) → "ON"

- . In case of COU-TX7 IRIS AUTO/MANUAL switch (Control panel) → "AUTO"


Test point : VBS 1 OUT connector/CCU rear panel
Adjusting point : 1RV2 (SYNC PHASE)/ES-20 board
1RV3 (SYNC WIDTH)/ES-20 board
1S2 (H BLKG)/ES-20 board
Specification : [For NTSC]
T1 = 1.35 ±0.1 µs (1RV2)
T2 = 4.7 ±0.1 µs (1RV3)
T3 = 10.9 ±0.1 µs (1S2)
[For PAL]
T1 = 1.55 ±0.1 µs (1RV2)
T2 = 4.7 ±0.1 µs (1RV3)
T3 = 12.0 ±0.1 µs (1S2)


[For NTSC]


|T3 20IRE 20IRE 4IRE 50% T1 T2||T3 350mV 350mV 50% T1 T2|
|---|---|---|


[For PAL]


4-4


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CCU-TX7 (E)/V1




# 4-2-5. INT SC Phase Adjustment


Note : The SC-H phase measurement equipment (Tektronix :
Waveform monitor 1765 or equivalent) is used for
this adjustment. In case of using another measurement
equipment, read its instruction manual carefully and
then perform the following adjustment.


Equipment : SC-H phase measurement equipment
To be extended : ES-20 board
Preparation :


- . Set the mode of Textronix 1765 to "SC-H" mode.

- . Make sure that the video signal is not inputted to the GEN LOCK connector on the CCU-TX7/TX7P rear panel.


Test point


: VBS 1 OUT/CCU rear panel


Adjustment Procedure :


## [For NTSC]


|YL g R G|MG Cy B|R g 75% YL yl G r|cy V MG b U B Cy mg|
|---|---|---|---|


## [For PAL]


. Adujst 1RV5 (SC-H PHASE)/ES-20 board so that the
luminance line of BURST (SC) is the same as following
figure.


## 4-2-6. Y CLAMP Adjustment


Equipment : Oscilloscope
To be extended : ES-20 board
Preparation :


. Select the BARS mode on the RCP-TX7 or COU-TX7.


Test point : TP507 (GND : E1)/ES-20 board
Adjusting point :1RV515 (Y CLAMP)/ES-20 board
Specification :A = 0 ±5 mV


[For NTSC]


|A|||A||
|---|---|---|---|---|
||||||


[For PAL]


Note : After this adjustment is completed, set the mode of
Tektronix Waveform monitor 1765 to "WFM" mode.


Y LEVEL (VBS)
SYNC LEVEL (VBS) RV804


CHROMA LEVEL
RV810


SYNC WIDTH
RV3
RV2
SYNC PHASE


RV803 RV802


E3


ES-20
PHASE
H


Y LEVEL(COMP)


RV801
SYNC LEVEL(COMP)


RV7 H PHASE


RV800
Y SETUP LEVEL
(NTSC ONLY)


RV6 SC PHASE


SC


RV4 TP1
SC FREQUENCY


0


180°


RV812
B-Y LEVEL


RV5
SC-H PHASE


OUT PUT 1
R/G/B


Y/R-Y/B-Y
Y/C
OUT PUT 2
R/G/B
Y/R-Y/B-Y
Y/C


E1


G MAT BAL2 B WHT BAL R WHT BAL
RV506 RV505 RV500


S1


TP501


RV508


RV507
G MAT BAL1
G LEVEL TP502
R MAT BAL
RV509
RV510 R LEVEL TP503
B MAT BAL
RV512
RV513 B LEVEL


TP7
TP5
TP4
TP2
TP3


## R-Y BLK BAL RV501


POSITION


RV511
R DC BAL


## R-Y GAIN ADJ RV502


RV1000
LEVEL


RV514
B DC BAL


RV504 RV503
B-Y GAIN ADJ B-Y BLK BAL


ES-20 Board (A SIDE)


CCU-TX7 (E)/V1 4-5


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# 4-2-7. Y OUT (COMP) Level Adjustment


## 4-2-8. Y OUT (VBS) Level Adjustment


Equipment : Waveform monitor
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7 or COU-TX7.

- . S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board → "Y/R-Y/B-Y" (Center position) Test point : G/Y/Y 1 OUT connector /CCU rear panel


Equipment : Waveform monitor
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7 or COU-TX7.

- . S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board → "Y/C"


Test point : G/Y/Y 1 OUT connector/CCU rear panel


Adjustment Procedure :


Adjustment Procedure :


ES-20 board [For NTSC]


ES-20 board [For NTSC]


Adjusting point


Specifications


Adjusting point Specifications Y Level Adjustment 1RV804 A = 100 ±2 IRE
Y Level Adjustment 1RV802 A = 100 ±2 IRE SYNC Level Adjustment 1RV803 B = 40 ±1 IRE
SYNC Level Adjustment 1RV801 B = 40 ±1 IRE


1RV800 C = 7.5 ±1 IRE


SET-UP Level Adjustment


ES-20 board [For PAL]


ES-20 board [For PAL]


Y Level Adjustment
SYNC Level Adjustment


Adjusting point


Specifications


1RV802 A = 700 ±10 mV
±5 mV
1RV801 B = 300


Y Level Adjustment
SYNC Level Adjustment


Adjusting point


Specifications


1RV804 A = 700 ±10 mV
1RV803 B = 300 ±5 mV


[For NTSC]


[For PAL]


[For NTSC]


|||||||||||A||||A|||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||||||


[For PAL]


B


B


C


ES-20 Board (A SIDE)


4-6


B


B


Y LEVEL (VBS)
SYNC LEVEL (VBS) RV804


CHROMA LEVEL
RV810


SYNC WIDTH
RV3
RV2
SYNC PHASE


RV803 RV802


E3


ES-20
PHASE
H


Y LEVEL(COMP)


RV801
SYNC LEVEL(COMP)


RV800
Y SETUP LEVEL
(NTSC ONLY)


RV7 H PHASE


RV6 SC PHASE


SC


RV4 TP1
SC FREQUENCY


0


180°


RV812
B-Y LEVEL


RV5
SC-H PHASE


OUT PUT 1
R/G/B


Y/R-Y/B-Y
Y/C
OUT PUT 2
R/G/B
Y/R-Y/B-Y
Y/C


E1


G MAT BAL2 B WHT BAL R WHT BAL
RV506 RV505 RV500


S1


TP501


RV508


RV507
G MAT BAL1
G LEVEL TP502
R MAT BAL
RV509
RV510 R LEVEL TP503
B MAT BAL
RV512
RV513 B LEVEL


TP7
TP5
TP4
TP2
TP3


## R-Y BLK BAL RV501


POSITION


RV511
R DC BAL


## R-Y GAIN ADJ RV502


RV1000
LEVEL


RV514
B DC BAL


RV504 RV503
B-Y GAIN ADJ B-Y BLK BAL


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CCU-TX7 (E)/V1




# 4-2-9. R-Y/B-Y White Black Balance Adjustment


Equipment : Oscilloscope
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7

- r COU-TX7.


Adjustment Procedure :


1. Test point : TP505 (GND : E1)/ES-20 board
Specification :A = 0 ±5 mV 1RV500
C = 0 ±5 mV 1RV501
E = 525 ±5 mV p-p 1RV502


CA


E


2. Test point : TP506 (GND : E1)/ES-20 board
Specification : B = 0 ±5 mV 1RV505
D = 0 ±5 mV 1RV503
F = 525 ±5 mV p-p 1RV504


DB


F


3. Repeat procedure 1 and 2 several times.


## 4-2-10. G Level Adjustment


Equipment : Waveform monitor
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7 or COU-TX7.

- . S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board → "R/G/B"


Adjustment Procedure :


1. Test point : G/Y/Y1 OUT connector/CCU rear panel
Adjusting point :1RV507 (G MAT BAL1)/ES-20 board
1RV506 (G MAT BAL2)/ES-20 board
Specification :A = B = 0 +7
_0 mV [For NTSC]
A = B = 0 +7
_0 mV [For PAL]


RV507
RV506


B A


2. Adjusting point :1RV508 (G LEVEL)/ES-20 board
Specification : C = 700 ±10 mV [For NTSC]
C = 700 ±10 mV [For PAL]


[For NTSC]


[For PAL]


C


C


CCU-TX7 (E)/V1 4-7


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# 4-2-11. R Level Adjustment


Equipment : Waveform monitor
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7 or COU-TX7.

- . S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board → "R/G/B"


Adjustment Procedure :


1. Test point : R/R-Y/C 1 OUT connector/CCU rear panel
Adjusting point :1RV509 (R MAT BAL)/ES-20 board
Specification :A = 0 +7
_0 mV [For NTSC]
A = 0+7 _ mV [For PAL]


[For NTSC]


||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|A|||||A||A||A||


[For PAL]


## 4-2-12. B Level Adjustment


Equipment : Waveform monitor
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7 or COU-TX7.

- . S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board → "R/G/B"


Adjustment Procedure :


1. Test point : B/B-Y 1 OUT connector/CCU rear panel
Adjusting point : 1RV512 (B MAT BAL)/ES-20 board
Specification :A = 0+7 _ mV [For NTSC]
A = 0+7 _ mV [For PAL]


[For NTSC]


[For PAL]


2. Adjusting point :1RV510 (R LEVEL)/ES-20 board
Specification : B = 700 ±10 mV [ For NTSC]
B = 700 ±10 mV [ For PAL]


[For NTSC]


||B|||B|||B||B||
|---|---|---|---|---|---|---|---|---|---|---|


[For PAL]


2. Adjusting point : 1RV513 (B LEVEL)/ES-20 board
Specification : B = 700 ±10 mV [For NTSC]
B = 700 ±10 mV [For PAL]


[For NTSC]


[For PAL]


Y LEVEL (VBS)
SYNC LEVEL (VBS) RV804


CHROMA LEVEL
RV810


SYNC WIDTH
RV3
RV2
SYNC PHASE


RV803 RV802


E3


ES-20
PHASE
H


Y LEVEL(COMP)


RV801
SYNC LEVEL(COMP)


RV7 H PHASE


RV800
Y SETUP LEVEL
(NTSC ONLY)


RV6 SC PHASE


SC


RV4 TP1
SC FREQUENCY


0


180°


RV812
B-Y LEVEL


RV5
SC-H PHASE


OUT PUT 1
R/G/B


Y/R-Y/B-Y
Y/C
OUT PUT 2
R/G/B
Y/R-Y/B-Y
Y/C


E1


G MAT BAL2 B WHT BAL R WHT BAL
RV506 RV505 RV500


S1


TP501


RV508


RV507
G MAT BAL1
G LEVEL TP502
R MAT BAL
RV509
RV510 R LEVEL TP503
B MAT BAL
RV512
RV513 B LEVEL


TP7
TP5
TP4
TP2
TP3


## R-Y BLK BAL RV501


POSITION


RV511
R DC BAL


## R-Y GAIN ADJ RV502


RV1000
LEVEL


RV514
B DC BAL


RV504 RV503
B-Y GAIN ADJ B-Y BLK BAL


4-8


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ES-20 Board (A SIDE)


CCU-TX7 (E)/V1




# 4-2-13. WF OUT R/B DC OFFSET Adjustment


Equipment :Waveform monitor
To be extended : ES-20 board
Preparation :


. Select the BARS mode on the RCP-TX7.


Test point : WF OUT connector/CCU rear panel


Adjustment Procedure :


. Adjust 1RV511 (R DC BAL), 1RV514 (B DC BAL)/ES-
20 board so that the DC levels of "R" and "B" are same as
that of "G" even after the MONITOR SELECT button /
RCP-TX7 is selected "R", "G" and "B".


Specification : DC level ±1 mV ("G")


## 4-2-14. Carrier Balance Adjustment


Equipment : Vectorscope (MAX GAIN)
To be extended : ES-20 board
Preparation :


. Select the BARS mode on the RCP-TX7 or COU-TX7.


Test point : VBS 1 OUT connector/CCU rear panel


Adjustment Procedure :


[For NTSC]


|YL g R G|MG Cy B|g YL yl R 75% G r|cy V MG b U B Cy mg|
|---|---|---|---|


[For PAL]


. Adjust 1RV805 (I (V) CAL) and 1RV809 (Q(U) CAL)/
ES-20 board so that the luminance point of black level is
located in the center of the vectorscope.


CCU-TX7 (E)/V1 4-9


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# 4-2-15. Color Vector Adjustment


Equipment : Vectorscope, Waveform monitor
To be extended : ES-20 board
Preparation :


- . GAIN Switch/vectorscope → "75% CAL"

- . Adjust the PHASE control on the vectorscope so that the burst spot is aligned to the 75% axis.

- . Select the BARS mode on the RCP-TX7 or COU-TX7.


Test point : VBS 1 OUT connector/ CCU rear panel


Adjustment Procedure :


1. Adjust 1RV806 (BURST LEVEL)/ES-20 board so that
the burst spot is located at 75% scale mark on the
vectorscope screen.
2. Adjust the following adjusting controls so that all
luminance points are inside the respective "4" mark on
the vectorscope.
1RV807 (BURST PHASE)/ES-20 board
1RV808 ((U) LEVEL)/ES-20 board
1RV810 (CHROMA LEVEL)/ES-20 board
1FL800 (QUAD)/ES-20 board


[For NTSC]


[For PAL]


cy


g


R


R


g


MG


MG


75% V
100%


YL


YL


b


U


yl


B


B


G


G


## R-Y OUT


Cy


Cy mg


r


3. Repeat procedure 1 and 2 several times.


## 4-2-16. R-Y/B-Y OUT Level Adjustment


Equipment : Oscilloscope
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7 or COU-TX7.

- . S800 (R/G/B, Y/R-Y/B-Y, Y/C)/ES-20 board → "Y/R-Y/B-Y" (Center position)

- . R/R-Y/C1 OUT connector/CCU rear panel → "75 Z termination"

- . B/B-Y1 OUT connector/CCU rear panel → "75 Z termination"


Adjustment Procedure :


ES-20 board [For NTSC (UC)]


Test point
(GND : pin 91)


Adj. point


Specifications


1. -Y pin 92 1RV811 A = 700 ±5 mV p-p


B-Y pin 90 1RV812 B = 700 ±5 mV p-p


ES-20 board [For PAL]


Test point
(GND : pin 91)


Adj. point


Specifications


1. -Y pin 92 1RV811 A = 525 ±5 mV p-p


B-Y pin 90 1RV812 B = 525 ±5 mV p-p


## B-Y OUT


A


B


4-10


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CCU-TX7 (E)/V1




# 4-2-17. VBS OUT Level Adjustment


Equipment :Waveform monitor
To be extended : ES-20 board
Preparation :


. Select the BARS mode on the RCP-TX7 or COU-TX7.


Test point : VBS 1 OUT connector/CCU rear panel
Adjusting point :1RV813 (VBS LEVEL)/ES-20 board
Specification :A = 100 ±1 IRE [For NTSC]
A = 700 ±10 mV [For PAL]


[For NTSC]


[For PAL]


A


A


## 4-2-18. STAIR CASE Adjustment


Note : This adjustment is for temporary adjustment when
repairing the STAIR CASE block. In the system
set up, the readjustment is required to match the
characteristic of waveform monitor.


Equipment : Oscilloscope
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7.

- . MONITOR SELECT button/RCP-TX7 → "SEQ"


Test point : pin 76 (GND: pin 75)/
extension board
Adjusting point :1RV1001/ES-20 board
1RV1000/ES-20 board
Specification :A = 10.0 ±1 V p-p (1RV1001)
B = 0 ±1 V dc (1RV1000)


A


B
GND


Y LEVEL (VBS)
SYNC LEVEL (VBS) RV804


CHROMA LEVEL
RV810


SYNC WIDTH
RV3
RV2
SYNC PHASE


RV803 RV802
Y LEVEL(COMP)
RV801
FL800
SYNC LEVEL
(COMP)


E3


ES-20
PHASE
H


RV7 H PHASE


RV800
Y SETUP LEVEL
(NTSC ONLY)


SC


RV6 SC PHASE


RV4 TP1
SC FREQUENCY


0


180°


RV812
B-Y LEVEL


RV5
SC-H PHASE


OUT PUT 1
R/G/B


Y/R-Y/B-Y
Y/C
OUT PUT 2
R/G/B
Y/R-Y/B-Y
Y/C


E1


G MAT BAL2 B WHT BAL R WHT BAL
RV506 RV505 RV500


S1


TP501


RV508


RV507
G MAT BAL1
G LEVEL TP502
R MAT BAL
RV509
RV510 R LEVEL TP503
B MAT BAL
RV512
RV513 B LEVEL


TP7
TP5
TP4
TP2
TP3


## R-Y BLK BAL RV501


POSITION


RV511
R DC BAL


## R-Y GAIN ADJ RV502


RV1000
LEVEL


RV514
B DC BAL


RV504 RV503
B-Y GAIN ADJ B-Y BLK BAL


ES-20 Board (A SIDE)


CCU-TX7 (E)/V1 4-11


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# 4-2-19. WIDE ID Level Adjustment


[For the Serial No. 10601 and Higher (UC)]
[For the Serial No. 40251 and Higher (CE)]


Note : Before starting this adjustment, complete the
adjustments as instructed in section 4-2-7, 4-2-8 and


4-2-17.


Equipment : Waveform monitor
To be extended : ES-20 board
Preparation :


- . Select the BARS mode on the RCP-TX7/TX7P or COU- TX7. S1/DU-33 board (on the ES-20 board) → ON

- . Select the 16:9 mode. (How to select the 16:9 mode differs depending on the equipment connected to the unit.)


[When the RCP-TX7/TX7P is connected]


n


For details, refer to the RCP-TX7/TX7P operating instruction.


1. Select the advanced setting mode.

2. Press the menu selector button "OTHERS" nine times.

3. Select 16:9 with the setting button.


[When the COU-TX7 is connected]


n


For details, refer to the DXC-D30WS/D30WSP operating
instruction.


Switch 16:9/4:3 to the 16:9 setting mode using the advanced
menu page 9 of the DXC-D30WS/D30WSP.


Adjustment point: 1RV1/DU-33 board (on the ES-20
board)


Adjustment Procedure :


1. Select the lines on the waveform monitor. 20 lines [NTSC] 23 lines [PAL]

2. Test point : VBS 1 OUT connector/CCU rear panel Specification :A = 70 ±5 IRE [For NTSC] A = 500 ±10 mV [For PAL]


[For NTSC]


[For PAL]


A


A


1H


1H


CN1


OFF ON


S1


1. -12


RV1


DU-33 Board (A SIDE)


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CCU-TX7 (E)/V1




# 4-3. Y Cable Compensation System Adjustment


## 4-3-1. SYNC SEP Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :


- . In case of RCP-TX7 Set IRIS AUTO button to "OFF", and close the lens iris by IRIS control knob.

- . In case of COU-TX7 Set IRIS AUTO/MANUAL switch to "MANUAL", and close the lens iris by IRIS control knob.


Test point : TP4 (GND: E2)/YD-26 board
Adjusting point :1LV1 (Y RF TUNE)/YD-26 board
Specification : Level "A" = maximum level


## 4-3-2. BLACK Pulse Width Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP5 (GND: E2)/YD-26 board
Adjusting point : 1RV2 (BLACK S/H)/YD-26 board
Specification : T = 1.7 ±0.1 µs


|||
|---|---|
|H||


H


A


T


50%


E1 RV1
Y AGC CONT


SAMPL S/H
E2 RV4


TP11
Y LEVEL
RV9
E6
RV17
R-Y LEVEL


TP2
TP5 TP8
TP4 TP7
Y RF TUNE
TP6
RV2 RV5
LV1
BLACK S/H SYNC S/H
TP3 S4
C 2'nd AGC
E7
B-Y CARR BAL
TP13 TP14 RV11


Y OFFSET ADJ


RV8


YD-26


RV6
VCO DC SET


Y 2'nd AGC


S3


TP9


TP12


TP17


RV12


1. -Y LEVEL


E8


E9


## R-Y CARR BAL RV16


TP19


1. 


TP15


RV10
C AGC CONT


RV18
90° SET


RV13 RV14 RV15
OFFSET ADJ PLL SET C CAR LEV


E16


TP1 E4


S2
CABLE LENGTH
S1


E3


TP21 TP20


TP26
TP10


E5


SAMPL GATE
RV3


YD-26 Board (A SIDE)


CCU-TX7 (E)/V1 4-13


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# 4-3-3. SYNC Sample Hold Pulse Width Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP8 (GND: E2)/YD-26 board
Adjusting point :1RV5 (SYNC S/H)/YD-26 board
Specification :T = 1.3 ±0.1 µs


50%


T


## 4-3-4. 22.5 MHz VCO DC Set Adjustment


Note : Make sure that 45MHz frequency on the YM-15
board (CA-TX7/TX7P) should be correct.


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP9 (GND: E2)/YD-26 board
Adjusting point :1RV6 (VCO DC SET)/YD-26 board
Specification :A = 0 ±30 mV dc


GND


A


4-14


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CCU-TX7 (E)/V1




# 4-3-5. Sample Pulse Width Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP7 (GND: E2)/YD-26 board
Adjusting point :1RV4 (SAMPLE S/H)/YD-26 board
Specification :T = 40.0 ±2.0 µs


||
|---|
|V|


## 4-3-6. Sample Pulse V Gate Width Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP7 (GND: E2)/YD-26 board
Adjusting point :1RV3 (SAMPLE GATE)/YD-26 board


Adjustment Procedure :


. Confirm that the sample pulses have six pulses in both odd
and even fields.
If not met, adjust 1RV3 (SAMPLE GATE)/YD-26 board
so that the sample pulses have six pulses in both odd and
even fields.


6 Pulses


T


50%


SAMPL GATE
RV3


E1 RV1
Y AGC CONT


SAMPL S/H
E2 RV4


TP11
Y LEVEL
RV9
E6
RV17
R-Y LEVEL


TP2
TP5 TP8
TP4 TP7
Y RF TUNE
TP6
RV2 RV5
LV1
BLACK S/H SYNC S/H
TP3 S4
C 2'nd AGC
E7
B-Y CARR BAL
TP13 TP14 RV11


Y OFFSET ADJ


RV8


YD-26


RV6
VCO DC SET


Y 2'nd AGC


S3


TP9


TP12


TP17


RV12


1. -Y LEVEL


E8


E9


## R-Y CARR BAL RV16


TP19


1. 


TP15


RV10
C AGC CONT


RV18
90° SET


RV13 RV14 RV15
OFFSET ADJ PLL SET C CAR LEV


E16


TP1 E4


S2
CABLE LENGTH
S1


E3


TP21 TP20


TP26
TP10


E5


YD-26 Board (A SIDE)


CCU-TX7 (E)/V1 4-15


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# 4-3-7. 22.5 MHz Carrier Level Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP10 (GND: E5)/YD-26 board
Adjusting point :1RV7 (Y CARR LEVEL)/
YD-26 board
Specification :A = 400 ±20 mV p-p
(BW LIMIT/Oscilloscope → "OFF")


||
|---|
||
||


A


## 4-3-8. Y DEMOD Carrier Balance Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :


- . In case of RCP-TX7 Set IRIS AUTO button to "OFF", and close the lens iris by IRIS control knob.

- . In case of COU-TX7 Set AUTO/MANUAL switch to "MANUAL", and close the lens iris by IRIS control knob.

- . S3 (Y 2nd AGC)/YD-26 board → "OFF"


Test point : TP11 (GND: E6)/YD-26 board
Adjusting point :1RV8 (Y CARR BAL)/YD-26 board
Specification :A = maximum level


||V|
|---|---|


A


4-16


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CCU-TX7 (E)/V1




# 4-3-9. Y OFFSET Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP11 (GND: E6)/YD-26 board
Adjusting point :1RV24 (Y OFFSET ADJ)/
YD-26 board
Specification :A = 0 ±3 mV


A


BLKG


SYNC


## 4-3-11. Y 1st AGC Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :


- . S1 (AUTO/MANU)/YD-26 board → "AUTO"

- . S3 (Y 2nd AGC)/YD-26 board → "OFF"


Test point : TP11 (GND: E6)/YD-26 board
Adjusting point :1RV1 (Y AGC CONT)/YD-26 board
Specification :A = 700 ±20 mV


A


## 4-3-10. Y 90˚ Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :


. Select the BARS mode on the RCP-TX7 or COU-TX7.


Test point : TP26 (GND: E6)/YD-26 board
Adjusting point :1FL3 (90˚ SIFT)/YD-26 board
Specification :A = 0 ±10 mV


[For NTSC]


||A||A||
|---|---|---|---|---|


[For PAL]


CCU-TX7 (E)/V1 4-17


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# 4-3-12. Y Output Level Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :


. S3 (Y 2nd AGC)/YD-26 board → "ON"


Test point : TP11 (GND: E6)/YD-26 board
Adjusting point :1RV9 (Y LEVEL)/YD-26 board
Specification :A = 700 ±7 mV p-p


A


## 4-4. CHROMA Cable Compensation System Adjustment


## 4-4-1. 45 MHz Carrier Level Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP16 (GND: E8)/YD-26 board
Adjusting point :1RV15 (C CARR LEVEL)/
YD-26 board
Specification :A = 400 ±20 mV p-p
(BW LIMIT/Oscilloscope → "OFF" )


A


E1 RV1
Y AGC CONT


SAMPL S/H
E2 RV4


TP11
Y LEVEL
RV9
E6
RV17
R-Y LEVEL


TP2
TP5 TP8
TP4 TP7
Y RF TUNE
TP6
RV2 RV5
LV1
BLACK S/H SYNC S/H
TP3 S4
C 2'nd AGC
E7
B-Y CARR BAL
TP13 TP14 RV11


Y OFFSET ADJ


RV8


YD-26


RV6
VCO DC SET


Y 2'nd AGC


S3


FL3


TP9


TP12


TP17


RV12


1. -Y LEVEL


E8


E9


## R-Y CARR BAL RV16


TP19


1. 


TP15


RV10
C AGC CONT


RV18
90° SET


RV13 RV14 RV15
OFFSET ADJ PLL SET C CAR LEV


E16


TP1 E4


S2
CABLE LENGTH
S1


E3


TP21 TP20


TP26
TP10


E5


SAMPL GATE
RV3


YD-26 Board (A SIDE)


4-18


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CCU-TX7 (E)/V1




# 4-4-2. C PLL Set Adjustment


Note : Make sure that 45 MHz frequency on the YM-15
board (CA-TX7/TX7P) is correct.


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP15 (GND: E8)/YD-26 board
Adjusting point :1RV14 (PLL SET)/YD-26 board
Specification :A = 0 ±30 mV dc


||
|---|
||


A
GND


## 4-4-3. B-Y DEMOD Carrier Balance Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :


. S4 (C 2nd AGC)/YD-26 board → "OFF"


Test point : TP17 (GND: E8)/YD-26 board
Adjusting point :1RV11 (B-Y CARR BAL)/
YD-26 board
Specification : Adjust so that the waveform level of
SAMPLE pulse is maximum.


V


Maximum


E1 RV1
Y AGC CONT


SAMPL S/H
E2 RV4


TP11
Y LEVEL
RV9
E6
RV17
R-Y LEVEL


TP2
TP5 TP8
TP4 TP7
Y RF TUNE
TP6
RV2 RV5
LV1
BLACK S/H SYNC S/H
TP3 S4
C 2'nd AGC
E7
B-Y CARR BAL
TP13 TP14 RV11


Y OFFSET ADJ


RV8


YD-26


RV6
VCO DC SET


Y 2'nd AGC


S3


TP9


TP12


TP17


RV12


1. -Y LEVEL


E8


E9


## R-Y CARR BAL RV16


TP19


1. 


TP15


RV10
C AGC CONT


RV18
90° SET


RV13 RV14 RV15
OFFSET ADJ PLL SET C CAR LEV


E16


TP1 E4


S2
CABLE LENGTH
S1


E3


TP21 TP20


TP26
TP10


E5


SAMPL GATE
RV3


YD-26 Board (A SIDE)


CCU-TX7 (E)/V1 4-19


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# 4-4-4. B-Y Crosstalk Adjustment


Note : Make sure that 45 MHz frequency on the YM-15
board (CA-TX7/TX7P) is correct.


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP17 (GND: E8)/YD-26 board
Adjusting point :1RV13 (OFFSET ADJ)/YD-26 board
Specification :A = 0 ±3 mV


||||
|---|---|---|
||||
||||


## 4-4-5. C 1st AGC Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board


Preparation :


- . S1 (AUTO/MANU)/YD-26 board → "AUTO"

- . S4 (C 2nd AGC)/YD-26 board → "OFF"


Test point : TP17 (GND: E8)/YD-26 board
Adjusting point :1RV10 (C AGC CONT)/YD-26 board
Specification :A = 350 ±20 mV


A


BLKG


SYNC


A


4-20


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CCU-TX7 (E)/V1




# 4-4-6. B-Y OUT Level Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Preparation :


. S4 (C 2nd AGC)/YD-26 board → "ON"


Test point : TP17 (GND: E8)/YD-26 board
Adjusting point :1RV12 (B-Y LEVEL)/YD-26 board
Specification :A = 350 ±5 mV p-p


A


## 4-4-7. R-Y DEMOD Carrier Balance Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP18 (GND: E9)/YD-26 board
Adjusting point :1RV16 (R-Y CARR BAL)/
YD-26 board
Specification : Adjust 1RV16 so that the negative DC
level is maximum.


GND


Maximum


(Negative DC level) _


E1 RV1
Y AGC CONT


SAMPL S/H
E2 RV4


TP11
Y LEVEL
RV9
E6
RV17
R-Y LEVEL


TP2
TP5 TP8
TP4 TP7
Y RF TUNE
TP6
RV2 RV5
LV1
BLACK S/H SYNC S/H
TP3 S4
C 2'nd AGC
E7
B-Y CARR BAL
TP13 TP14 RV11


Y OFFSET ADJ


RV8


YD-26


RV6
VCO DC SET


Y 2'nd AGC


S3


TP9


TP12


TP17


RV12


1. -Y LEVEL


E8


E9


## R-Y CARR BAL RV16


TP19


1. 


TP15


RV10
C AGC CONT


RV18
90° SET


RV13 RV14 RV15
OFFSET ADJ PLL SET C CAR LEV


E16


TP1 E4


S2
CABLE LENGTH
S1


E3


TP21 TP20


TP26
TP10


E5


SAMPL GATE
RV3


YD-26 Board (A SIDE)


CCU-TX7 (E)/V1 4-21


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# 4-4-8. R-Y Crosstalk Adjustment


Note : Make sure that 45 MHz frequency on the YM-15
board (CA-TX7/TX7P) is correct.


Equipment : Oscilloscope
To be extended : YD-26 board
Test point : TP19 (GND: E9)/YD-26 board
Adjusting point :1RV18 (90° SET)/YD-26 board
Specification : The SAMPLE pulse level should be
minimum.
A = 0 ±3 mV


A


## 4-4-9. R-Y OUT Level Adjustment


Equipment : Oscilloscope
To be extended : YD-26 board


Preparation :


. S4 (C 2nd AGC)/YD-26 board → "ON"


Test point : TP19 (GND: E9)/YD-26 board
Adjusting point :1RV17 (R-Y LEVEL)/YD-26 board
Specification :A = 350 ±5 mV


||
|---|
||


A


V


4-22


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CCU-TX7 (E)/V1




# 4-5. RETURN VIDEO Cable Compensation System Adjustment


## 4-5-1. Return Video Carrier Frequency Adjustment


Equipment : Spectrum analyzer
To be extended : CT-181 board
Preparation :


. Input 10 STEP signal (sub-carrier : OFF) of video signal
generator to RETURN-1 connector (75 Z termination, 1.0
V p-p) on the CCU-TX7/TX7P rear panel.


Test point : TP21 (GND: E12)/CT-181 board
Adjusting point :1CV1 (RET FREQ)/CT-181 board
Specification : 69.000 ±0.005 MHz


SYNC


## 4-5-2. Return Video Deviation Adjustment


Equipment : Spectrum analyzer
To be extended : CT-181 board
Preparation :


. Input 10 STEP signal (sub-carrier : OFF) of video signal
generator to RETURN-1 connector (75 Z termination, 1.0
V p-p) on the CCU-TX7/TX7P rear panel.


Test point : TP21 (GND: E12)/CT-181 board
Adjusting point :1RV20 (RET DEV)/CT-181 board
Specification :T = 2.000 ±0.005 MHz


T


## 69.0MHz CENT FREQ: 69.0MHz FFEQ SPAN: 5.0MHz


## 69.0MHz CENT FREQ: 69.0MHz FFEQ SPAN: 5.0MHz


Note : Performe the adjustment of 4-5-1. "Return Video
Carrier Frequency Adjustment" when the SYNC
portion is moved during the adjustment.


E1001


TP2006


RET FREQ
CV1


CT-181 Board (A SIDE)


CCU-TX7 (E)/V1 4-23


E11


S2011


CT-181 R TALLY
R TALLY
CONTACT


CONTACT
POWER


TP1000


POWER


E12


DC24V


RF AGC DLY
RV22


PROMPT DEV
RV21


S2013


DC24V
TTL
G TALLY
CONTACT
POWER


E1000


TTL
R TALLY
CONTACT
G TALLY
POWER
DC24V
G TALLY
TTL
MIC 1 GAIN
SW1000
SW1001
MIC 2 GAIN


PROMPT FREQ


S2012


RV23
PROMPT LEVEL


PROMPT TUNE


DC24V
TTL


S2014


CN2


LV3 E13 TP22
S2002


MIC GAIN
NORM CH-1
MIN
MAX
NORM CH-2
MIN
MAX


PROMPT RF TX
CN7


RET RF
CN3
PROMPT RF


PROMPT


S1001
PANEL
SELECT


S1004 RX TX
RS232C-2


CN8
PROMPT RF RX


IF BOARD


PANEL
REMOTE


TP1001


TP2000


LOCAL


E16
TP2003 TP2002 TP2004 TP2001


CONTROL MODE
NORMAL


NORM
CONT MODE
SLAVE
S1002


SLAVE


TP2005


E2000


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# 4-6. PROMPT VIDEO Cable Compensation System Adjustment


## 4-6-1. TX PROMPT VIDEO Demodulation Adjustment


Note : When performing this adjustment, the TRIAX cable
less than 300 m should be used.


Equipment :Waveform monitor,
Video signal generator (10 STEP signal)
To be extended : CT-181 board
Preparation :


- . S1 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "PROMPT" . S6 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "PROMPT" . Connect CN7 and CN3 on the CT-181 board. (CCU-TX7/ TX7P) . S2002 (TX ↔ RX)/CT-181 board (CCU-TX7/TX7P) → "TX"

- . S1 (MODE AUTO/MAN)/YD-26 board (CCU-TX7/TX7P) → "AUTO"

- . Input 10 STEP signal (sub-carrier : OFF) of video signal generator to PROMPT VIDEO IN connector (75 Z termination, 1.0 V p-p) on the CCU-TX7 /TX7P rear panel.


Test point : PROMPTER OUT (CA-TX7/TX7P)
Note :To measure the video level, make 75 Z
termination on the waveform monitor side.
Adjusting point :1RV21 (PROMPT DEV)/
CT-181 board
Specification :A = 140 ±6 IRE [For NTSC]
A = 1.00 ±0.05 V [For PAL]


||
|---|
||
||
||
||


A


Note : After this adjustment is completed, set as follows.


- . S1 (MODE AUTO/MAN)/YD-26 board (CCU-TX7/TX7P) → "AUTO"

1. -24


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CCU-TX7 (E)/V1




# 4-6-2. RX PROMPT VIDEO Demod. Adjustment


## Note :


- . Perform this adjustment only when replacing 1LV2 (PROMPT FREQ) or 1LV3 (PROMPT TUNE)/CT-181 board. When performing this adjustment, the TRIX cable less than 300 m should be used.

- . Adjustment of CA-TX7/TX7P must be completed.


Equipment :Waveform monitor,
Video signal generator (10 STEP signal)
To be extended : CT-181 board
Preparation :


- . S1 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "AUX"

- . S6 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "AUX"

- . Connect CN8 and CN3 on the CT-181board. (CCU-TX7/ TX7P)

- . S2002 (TX ↔ RX)/CT-181 board (CCU-TX7/TX7P) → "RX"

- . S1 (MODE AUTO/MAN)/YD-26 board (CCU-TX7/TX7P) → "AUTO" . Input the SWEEP signal of the video signal generator to PROMPTER OUT connector on the CA-TX7/TX7P rear panel. Test point : PROMPTER VIDEO IN connector (CCU-TX7/TX7P rear panel) Note : To measure the video level, make 75 Z termination on the waveform monitor side. Adjusting point :1LV2 (PROMPT FREQ)/ CT-181 board 1LV3 (PROMPT TUNE)/ CT-181 board


## Adjustment Procedure :


1. Observe the waveform monitor screen and adjust 1LV3 (PROMPT TUNE)/CT-181 board so that the video waveform is appeared.

2. Adjust 1LV2 (PROMPT FREQ)/CT-181 board so that the frequency response at 6 MHz portion is minimum.


||
|---|
|6MHz|
|3. Change the output|
|10 STEP|
|Re-adjust 1LV3|
|the "A" portion at|
|NOTE : If not met,|
|VIDEO|
|"4-6-3.|


1. of the video signal generator to (sub-carrier : ON) signal.

2.  (PROMPT TUNE)/CT-181 board so that video waveform becomes flat. Re-perform "4-6-2. RX PROMPT Demod. Adjustment" after performing RX PROMPT VIDEO RF AGC Adjustment".


A


flat


Note : After the adjustment is completed, set the switches
as follows.


- . S1 (AUX/PROMRT)/YD-25 board (CA-TX7/TX7P) → "PROMPT"

- . S6 (AUX/PROMRT)/YD-25 board (CA-TX7/TX7P) → "PROMPT"

- . Connect CN7 and CN3 on the CT-181board. (CCU-TX7/ TX7P)

- . S2002 (TX ↔ RX) switch/CT-181 board (CCU-TX7/TX7P) → "TX"


CCU-TX7 (E)/V1 4-25


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# 4-6-3. RX PROMPT VIDEO RF AGC Adjustment


Note : When performing this adjustment, the TRIAX cable
50 m to 150 m should be used.
Adjustment of CA-TX7 /TX7P must be completed.


Equipment : Oscilloscope,
Video signal generator (10 STEP signal)
To be extended : CT-181 board
Preparation :


- . S1 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "AUX"

- . S6 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "AUX" . Connect CN8 and CN3 on the CT-181 board. (CCU-TX7/ TX7P) . S2002 (TX ↔ RX)/CT-181 board (CCU-TX7/TX7P) → "RX"

- . S1 (MODE AUTO/MAN)/YD-26 board (CCU-TX7/TX7P) → "AUTO"

- . Input the 10 STEP (sub-carrier : ON) signal of the video signal generator to PROMPTER connector on the CA-TX7/ TX7P rear panel. Test point : PROMPTER VIDEO IN connector (CCU-TX7/TX7P rear panel) Note :To measure the video level, make 75 Z termination on the waveform monitor side. Adjusting point :1RV22 (RF AGC DLY)/CT-181 board


Adjustment Procedure :


. Turn 1RV22 (RF AGC DLY)/CT-181 board fully in the
clockwise direction, and then turn it slowly in the
counterclockwise direction so that the V SYNC position
of waveform becomes flat. (Take care not to over-turn.)


Note : After this adjustment is completed, set the switches
as follows.


- . S1 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "PROMPT"

- . S6 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "PROMPT"

- . Connect CN7 and CN3 on the CT-181 board. (CCU-TX7/ TX7P)

- . S2002 (TX ↔ RX)/CT-181 board (CCU-TX7/TX7P) → "TX"

1. -26


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CT-181 Board (A SIDE)


CCU-TX7 (E)/V1




# 4-6-4. RX PROMPT VIDEO Level Adjustment


Note : When performing this adjustment, the TRIAX less
than 300 m should be used.
Adjustment of CA-TX7/TX7P must be completed.


Equipment : Oscilloscope,
Video signal generator (10 STEP signal)
To be extended : CT-181 board
Preparation :


- . S1 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "AUX"

- . S6 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "AUX"

- . Connect CN8 and CN3 on the CT-181 board. (CCU-TX7/ TX7P)

- . S2002 (TX ↔ RX)/CT-181 board (CCU-TX7/TX7P) → "RX"

- . S1 (MODE AUTO/MAN)/YD-26 board (CCU TX7/TX7P) → "AUTO" . Input the 10 STEP signal (sub-carrier : ON) of the video signal generator to PROMPTER OUT connector on the CA-TX7/TX7P real panel. Test point : PROMPTER VIDEO IN connector (CCU-TX7/TX7P rear panel) Note : To measure the video level, make 75 Z termination on the waveform monitor side. Adjusting point : 1RV23 (PROMPT LEVEL)/CT-181 board. A = 140 ±6 IRE [For NTSC] A = 1.00 ±0.05 V [For PAL]


## 4-7. TRIAX Interface System Adjustment


## 4-7-1. Frequency Set Adjustment


Note : Check to see that no signal is input to the INCOM
connector and PGM connector on the CCU-TX7/
TX7P rear panel or the CCU-TX7/TX7P front panel.
Perform the adjustment only when replacing the
following part on AA-90 board.
LV1, 21, 41, 81, D2, 22, 42, 62


Equipment : Frequency counter, Digital voltmeter
To be extended : AA-90 board


Adjustment Procedures :


1. Remove the ES-20 and CT-181 boards.

2. Turn on the power switch "ON".

3. AA-90 board (GND : E1)


||Test point|Adj. point|Specifications|
|---|---|---|---|
|PGM|TP5|1LV81|4.300 ±0.005 MHz|
|INCOM|TP3|1LV41|3.600 ±0.005 MHz|
|H CONT|TP1|1LV1|3.000 ±0.005 MHz|
|CCU DATA|TP2|1LV21|2.500 ±0.005 MHz|


Setting after Adjustment :
Install the ES-20 and CT-181 boards back into position.


A


Note : After this adjustment is completed, set the switches
as follows.


- . S1 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "PROMPT"

- . S6 (AUX/PROMPT)/YD-25 board (CA-TX7/TX7P) → "PROMPT"


|. Connect CN7 and CN3 on the CT-181 board. (CCU-TX7/||
|---|---|
|||
|. S2002 (TX ↔ RX) /CT-181 board (CCU-TX-7/TX7P)||


- → "TX"


CT-181 Board (A SIDE)


CCU-TX7 (E)/V1 4-27


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# 4-7-2. INCOM Deviation Adjustment


Equipment : Spectrum analyzer, Oscilloscope,
Audio generator
To be extended : AA-90 board
Preparations :


1. INTERCOM CH1/CH2 switch (CA-TX7/TX7P side panel) → "CH-1"

2. INTERCOM LINE (CH1/PR1V/CH2) (CCU-TX7/TX7P) front panel → "CH-1 or CH-2"

3. S2002 (2W/RTS/4W)/AA-90 board (CCU-TX7/TX7P) → "4W"

4. Input the 400 Hz sine wave signal of the audio generator to pin 84 (X), pin 83 (Y) and pin 82 (GND)/extension board (AA-90 board). . Fig-2 (Refer to 4-1-5. Audio connection.)

5. Adjust the output level of audio generator so that the level at TP43 (GND : E10)/AA-90 board is 220 mVp-p.


Test point : TP3 (GND : E1)/AA-90 board
Adjustment point :1RV41 (INCOM DEV)/
AA-90 board
Specifications :A = B = 6.0 ±0.2 kHz


A B


## 4-7-3. PGM Deviation Adjustment


Equipment : Spectrum analyzer, Oscilloscope,
Audio generator
To be extended : AA-90 board
Preparetions :


1. S2081 (0 dB/_20 dB)/AA-90 board (CCU-7X7/TX7P) → "0 dB"

2. Input the 350 Hz sine wave signal of the audio generator to pin 94 (X), pin 93 (Y) and pin 92 (GND)/extension board (AA-90 board). . Fig-2 (Refer to 4-1-5. Audio connection.)

3. Adjust the output level of audio generator so that the level at TP44 (GND : E12)/AA-90 board is 220 mV p-p. Test point : TP5 (GND : E1)/AA-90 board Adjustment point :1RV81 (PGM DEV)/AA-90 board


Specifications :A = B = 7.0 ±0.4 kHz


|A|B|
|---|---|


||
|---|
|Wave form image|


CENT FREQ : 3.6 MHz
FREQ SPAN : 20 MHz


E12


AA-90
PGM IN
0dB
-20dB
MIC 1 LEVEL
0dB
-20dB
MIC 2 LEVEL
0dB
-20dB
MIC TEST
CH-1
CH-2
OFF
LEVEL IND


TP9
TP12


TP44


T401


E10


TP15


LV101 5.6M TUNE


TP43


TONE TUNE


TP7


LV21


1. CCU DATA


LV61 LV41
4.3M 3.6M


E11


E1


TP46


LV1 3.0M
H CONT


INTER COM
2W
(CLEAR ) RTS
COM
4W
RTS
CLEAR
COM


TP3005


TP3002


E3001


TP3004


RV2000
SIDE TONE


TP3003


T201


T301


4-28


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Wave form image
CENT FREQ : 4.3 MHz
FREQ SPAN : 20 MHz


AA-90 Board (A SIDE)


CCU-TX7 (E)/V1




# 4-7-4. INCOM Demodulation Adjustment


Note : Perform this adjustment only when replacing 1T401/
AA-90 board.


Equipment : Oscilloscope, Audio generator
To be extended : AA-90 board
AFM-15 board (CA-TX7/TX7P)
Preparetions :


1. Input the 1 kHz sine wave signal of the audio generator
to pin 2 (GND : pin 1) of INTERCOM/PROGRAM
connector (5 pin) on the CA-TX7/TX7P.
. Fig-1 (Refer to 4-1-5. Audio connection.)
2. Adjust the output level control of audio generator so that
the pin 24 (GND : pin 12) /AFM-15 board is 220 mV p-p.
Test point : TP14 (GND : E2)/AA-90 board


Adjustment Procedures :


1. Set the input range of oscilloscope to DC made. Adjust
the white core of 1T401/AA-90 board slowly so that the
DC level at TP14 (GND : E2)/AA-90 board is 1.24 ±0.01
V dc.


## 4-7-5. INCOM Level Adjustment


Equipment
To be extended


: Oscilloscope, Audio generator
: AA-90 board
FM-15 board (CA-TX7/TX7P)


Preparetion :


1. Input the 1 kHz sine wave signal of the audio generator to pin 2 (GND : pin 1) of INTERCOM/PROGRAM connector (5 pin) on the CA-TX7/TX7P. . Fig-1 (Refer to 4-1-5. Audio connection.)

2. Adjust the output level control of audio generator so that the pin 24 (GND : pin 12) /AFM-15 board is 220 mV p-p.


Test point : TP15 (GND : E2)/AA-90 board
Adjustment point :1RV401 (INCOM LEVEL)/
AA-90 board
Specifications :A = 220 ±10 mV p-p


||A|
|---|---|


1. ± 0.01 V dc GND

2. Set the input range of oscilloscope to AC mode, and adjust the blue core of 1T401/AA-90 board so that the sine wave is minimum.


Minimum


1. Repeat procedure 1.


AA-90 Board (A SIDE)


CCU-TX7 (E)/V1 4-29


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# 4-7-6. MIC 1 Demodulation Adjustment


Note : Perform this adjustment only when replacing 1T201/
AA-90 board.


Equipment : Oscilloscope, Audio generator
To be extended : AA-90 board
Preparations :


1. AUDIO SELECT switch (CAMERA/CA-MIC/CA-LINE)/
CA-TX7/TX7P rear panel → "CA-LINE"
2. Input the 1 kHz sine wave signal of the audio generator to
CH 1 of MIC IN (rear panel) on the CA-TX7/TX7P.
. Fig-2 (Refer to 4-1-5. Audio connection.)
3. Adjust the output level control of audio generator so that
the pin 19 (GND : pin 12)/AFM-15 board is 220 mV p-p.
Test point : TP8 (GND : E2)/AA-90 board


Adjustment Procedures :


1. Adjust the white core of 1T201/AA-90 board slowly so
that the DC level at TP8 (GND : E2) /AA-90 board is
1.24 ±0.01 V dc.


||
|---|
|Set the input range of|
|the blue core of|
|is minimum.|
|Repeat procedure 1.|
||
|www.Manualslib.com|


## 4-7-7. MIC 1 Level Adjustment


Equipment
To be extended


: Oscilloscope, Audio generator
: AA-90 board
AFM-15 board (CA-TX7/TX7P)


Preparations :


1. AUDIO SELECT switch (CAMERA/CA-MIC/CA-LINE)/ CA-TX7/TX7P rear panel → "CA-LINE" 2. Input the 1 kHz sine wave signal of the audio generator to CH 1 of MIC IN (rear panel) on the CA-TX7/TX7P. . Fig-2 (Refer to 4-1-5. Audio connection.)


3. Adjust the output level control of audio generator so that
the pin 19 (GND : pin 12) / AFM-15 board is 220 mV p-p.


4. S201 (0 dB/_20 dB)/AA-90 board → 0 dB


Test point : TP10 (GND : E2)/AA-90 board
Adjustment point :1RV201 (MIC 1 LEVEL)/
AA-90 board


1100 ± 50 mV p-p


1. ± 0.01 V dc GND

2.  oscilloscope to AC mode, and adjust 1T201/AA-90 board so that the sine wave


Minimum


1. 

2. -30


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CCU-TX7 (E)/V1




# 4-7-8. MIC 2 Demodulation Adjustment


Note : Perform this adjustment only when replacing 1T301/
AA-90 board.


Equipment : Oscilloscope, Audio generator
To be extended : AA-90 board
AFM-15 board (CA-TX7/TX7P)
Preparations :


1. AUDIO SELECT switch (CAMERA/CA-MIC/CA-LINE)/
CA-TX7/TX7P → "CA-LINE"
2. Input the 1 kHz sine wave signal of the audio generator to
CH 2 of MIC IN (rear panel) on the CA-TX7/TX7P.
. Fig-2 (Refer to 4-1-5. Audio connection.)
3. Adjust the output level control of audio generator so that
the pin 17 (GND : pin 12)/AFM-15 board is 220 mV p-p.
Test point : TP11 (GND : E2)/AA-90 board


Adjustment Procedures :


1. Adjust the white core of 1T301/AA-90 board slowly so
that the DC level at TP11 (GND : E2) /AA-90 board is
1.24 ±0.01 V dc.


||
|---|
||


## 4-7-9. MIC 2 Level Adjustment


Equipment
To be extended


: Oscilloscope, Audio generator
: AA-90 board
AFM-15 board (CA-TX7/TX7P)


Preparations :


1. AUDIO SELECT switch (CAMERA/CA-MIC/CA-LINE)/
CA-TX7/TX-7P → "CA-LINE"
2. Input the 1 kHz sine wave signal of audio generator to
CH 2 of MIC IN (rear panel) on the CA-TX7/TX7P.
. Fig-2 (Refer to 4-1-5. Audio connection.)
3. Adjust the output level control of audio generator so that
the pin 17 (GND : pin 12)/AFM-15 board is 220 mV p-p.
4. S301 (0 dB/_20 dB)/AA-90 board → "0 dB"
Test point : TP13 (GND : E2)/AA-90 board
Adjustment point :1RV301 (MIC 2 LEVEL)/
AA-90 board
Specifications :A = 1100 ±50 mV p-p


A


1. ± 0.01 V dc GND

2. Set the input range of oscilloscope to AC mode, and adjust the blue core of 1T301/AA-90 board so that the sine wave is minimum.


Minimum


1. Repeat procedure 1.


AA-90 Board (A SIDE)


CCU-TX7 (E)/V1 4-31


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# 4-7-10. CAM DATA Demodulation Adjustment


## 4-7-11. CAM TONE Adjustment


Notes :


- . This adjustment for the following cameras must be completed before this adjustment. [For NTSC] DXC-637 or DXC-D30 [For PAL] DXC-637P or DXC-30P

- . Perform the adjustment only when replacing 1LV101 (5.6 MHz TUNE)/AA-90 board.


Notes :


. This adjustment for the following cameras must be
completed before this adjustment.
[For NTSC] DXC-637 or DXC-D30
[For PAL] DXC-637P or DXC-30P


Equipment : Oscilloscope (DC mode)
To be extended : AA-90 board
Test point : TP7 (GND : E2)/AA-90 board
Adjustment point :1RV101 (TONE TUNE)/
AA-90 board


Equipment : Oscilloscope
20 MHz BW Limit : ON
INPUT made : DC
To be extended : AA-90 board
Test point TP6 (GND : E2)/AA-90 board
Adjustment point :1LV101 (5.6 MHz TUNE)/
AA-90 board
Specifications :_100 ±40 mV dc


||
|---|
||


## ( )


Adjustment Procedures :


1. 1RV101 (TONE TUNE)/AA-90 board
→ "Mechanical center"
2. Turn 1RV101 (TONE TUNE)/AA-90 board slowly
clockwise and stop it at the point where the sine wave
signal just appears.
Measure the DC voltage "a"⋅⋅⋅Fig-1


GND
A


(fig. 1)


Equal (a)
Turn slowly clockwise


Mechanical center


3. Turn 1RV101 (TONE TUNE)/AA-90 board slowly
counterclockwise and stop it at the point where the sine
wave signal just appears.
Measure the DC voltage "b"⋅⋅⋅Fig-2


|Equal (a)|
|---|
|Turn slowly counterclockwise|
|Equal (b)|
|(fig. 2)|
|4. Adjust the DC level with 1RV101 (TONE TUNE)/AA-|
|90 board so that "a" is equal to "b"⋅⋅⋅Fig-3|
|Equal (a)|
|A|
|RV101 (A = B)|
|B|
|Equal (b)|
|(fig. 3)|


4-32


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CCU-TX7 (E)/V1




# SAFETY CHECK-OUT


After correcting the original service problem,
perform the following safety checks before
releasing the set to the customer :


Check the metal trim, "metallized" knobs,
screws, and all other exposed metal parts for AC
leakage. Check leakage as described below.


## LEAKAGE TEST


The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to
any exposed metal part having a return to
chassis, must not exceed 0.5 mA. Leakage
current can be measured by any one of three
methods.


1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers' instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The "limit" indication is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)


To Exposed Metal
Parts on Set


0.15 µF 1.5 kΩ


AC
voltmeter
(0.75V)


Earth Ground


Fig A. Using an AC voltmeter to check AC leakage.


CCU-TX7 (E)/V1


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DXBK-701 (UC, CE)
COU-TX7 (UC, CE)
CCU-TX7 (UC)
CCU-TX7P (CE) E


9-977-286-13


Downloaded from www.Manualslib.com manuals search engine


# Sony Corporation


# B&P Company


Printed in Japan
2003. 9 11
©1997




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