The service was quick and simple, finding the service manual easy and it appears to be the original with colour schematics. It contained the info I was after and so sorted the problem.
I have copied it to CD and attached the envelope to the inside back cover of the owners manual. Good manual and excelent service. Robin Wood, Wood Electronics, New Zealand.
I/O I I O O O O O O � � � I I I I I I I I I I I I I I I O O O O O O O I I I O O I � � DIGITAL-IN SUB-Q sync input. CXD2652 status sync input. Not used. Disc write protection switch input. CXD2652 monitor signal input-1. CXD2652 monitor signal input-2. CXD2652 monitor signal input-3. CXD2652 monitor signal input-4. CXD2652 SENS signal input. Connected to VDD. Connected to VSS. Connected to VDD.
Description READY input signal for system control interface. Serial data input for system control interface. Serial data output for system control interface. Serial clock output for system control interface. Latch signal output for CXD2652 interface. CXD2652 reset signal output. CXA2523 standby signal output. Not used. Connected to VSS.
Monitoring signal of flag contained in SRDT of CXD2652 interface.
Serial data input for CXD2652 interface. Serial data output for CXD2652 interface. Serial clock output for CXD2652 interface. SUB-Q, ADIP sync input. Not used.