At first I thought there had been a mix up as I required the service manual for the cassette unit and the one supplied was for the CD unit. However when I scrolled further down I realised that both had been scanned together! This enabled me to dismantle and repair the cassette unit as intended and I also have a copy of the manual for both the CD and graphic equaliser units should I ever need them. Thanks very much for a great service.
Text excerpt from page 23 (click to view)
Diagnostic Software, Trouble Shooting and Test Instructions
5.3.6 No Digital Out on Optical and Coaxial
No Digital output from optical and Coaxial terminal terminal Go Check point : the user's set up manual Observe : check the audio set-up is in digital output mode Yes Check point : pin 10 of CN501 on AV output board Observe : the +5V is presented . Yes Check point : R23 at pin 118 of Ess60x8 Observe : check is the R23 opened. No Check point : CN1at decoder board and CN501 on AV output board Observe : check is any poor contact between CN1 and CN51. No Check point : the copper trace between pin 118 of ESS60x8 to SPDIF at pin 8 of CN1. Observe : check is there any opened trace or poor soldering. Solution : check the output at pin 41of ESS60x8. If no signal from pin 41, change the IC of ESS60x8
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Solution : change the set up
Solution : check the 5V supply source from decoder board.
Solution : Replace R23
Solution : Replace the connector assembly
Figure 5-6 5.3.7 No Digital Out on Optical
No Signal output from Optical terminal but Coaxial output is normal
Go Yes Check point : the R503 on AV output board Observe : check if the resistor is opened Solution : replace the resistor
No Solution : replace the Optical output assembly set
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