git

docs/related-equipment.md

@@ -34,6 +34,12 @@ the better source for cable fabrication or continuity checks.
 Primary service manual:
 <https://www.manualslib.com/manual/1068508/Sony-Ccu-Tx7.html>
 
+Local PDFs:
+
+- [docs/manuals/f1f018.pdf](manuals/f1f018.pdf) - ManualsLib manual 1068508.
+- `docs/manuals/f1f018 (1).pdf` - duplicate of `f1f018.pdf`.
+- [docs/manuals/710a0c.pdf](manuals/710a0c.pdf) - ManualsLib manual 3284330.
+
 The CCU-TX7 is directly relevant to RCP-TX7 because the RCP was designed for
 CCU-TX7/TX7P camera systems with CA-TX7/TX7P camera adaptors.
 
@@ -50,7 +56,37 @@ Useful sections in the CCU-TX7 service manual:
 - Intercom/tally details.
 
 The CCU-TX7 rear panel REMOTE connector is described as a 10-pin connector for
-the RCP-TX7 via a CCA-7 cable.
+the RCP-TX7 via a CCA-7 cable. The service manual's connection section lists
+the REMOTE connector as Sony plug `1-766-848-11`, 10-pin male, or a CCA cable
+assembly such as CCA-7-5 supplied with the RCP-TX7, with a 50 m maximum run.
+
+CCU-TX7 service manual pinout for the rear `REMOTE` connector:
+
+| Pin | Signal | Notes |
+| ---: | --- | --- |
+| 1 | Spare | unused |
+| 2 | RM VIDEO OUT X | VBS, 1.0 Vp-p; later serial-number units only in one note |
+| 3 | RM VIDEO OUT G | video ground |
+| 4 | S.DATA RCP -> CCU | RX data equivalent, RS-232C-based, 38,400 bps |
+| 5 | S.DATA GND | serial/data ground |
+| 6 | S.DATA GND | serial/data ground |
+| 7 | S.DATA CCU -> RCP | TX data equivalent, RS-232C-based, 38,400 bps |
+| 8 | Spare | unused |
+| 9 | POWER +12.5 V DC GND | DC return |
+| 10 | POWER +12.5 V DC OUT | 10.6 V to 17.0 V DC |
+
+The extracted CCA-7 wiring diagrams preserve connector names and some wire
+colors, but not a reliable color-to-pin map. For cable rebuilding, use the
+numbered pinout above and verify any original cable by continuity rather than
+trusting OCR text.
+
+Relevant CCU-TX7 service switches:
+
+- `S1001 PANEL REMOTE/LOCAL`: factory `REMOTE`; chooses RCP vs COU when both
+  are connected.
+- `S1002 CONTROL MODE NORMAL/SLAVE`: invalid when the RCP is the active control
+  device; factory `NORMAL` for COU use.
+- `S1004`: selects RS-232C vs IF board path; factory setting is RS-232C side.
 
 ## CCU-D50 / CCU-D50P
 
@@ -70,6 +106,17 @@ The official CCU-D50 manual lists RCP-D50/D51, RCP-TX7, and RM-M7G as remote
 control options. It also includes a section on using the RM-M7G remote control
 unit and describes panel active handoff behavior.
 
+Front-panel system setting switches matter for remote testing:
+
+- Switch 1 selects CCU command mode: OFF is `M5A mode`, ON is `TX7 mode`.
+- Switch 6 selects remote/local priority when switch 1 is in `TX7 mode`: OFF
+  gives priority to the device on the rear-panel REMOTE connector, ON gives
+  priority to the CCU front panel.
+- Switch 6 is disabled when an RM-M7G is connected.
+- Setup menu `RCP RATE` controls rear REMOTE connector communication speed:
+  select `38400` for RCP-D50/D51/TX7. The manual says other settings prevent
+  connection.
+
 The Japanese CCU-D50/CA-D50 catalog notes:
 
 - CCU-D50 can use RM-M7G in M5A mode for basic DXC/DSR control.
@@ -117,4 +164,3 @@ Useful notes:
 - CAMERA SELECT on RM-M7G should be set to `1`.
 - EZ mode cannot be used while RM-M7G is connected.
 - Power should be off before connecting or disconnecting remote equipment.
-