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NO SOUND DVD/CD ANALOG
AUDIO
Does this have signal
at pins 116 and 118
of IC4001?
Yes
Does this have signal at
pins 1 and 7 of IC8501?
Yes
Is CP8501 connected?
Yes
Change DIGITAL PCB.
NO SOUND DVD/CD DIGITAL
AUDIO
Does this have signal
at pin1 of CP8501?
No
Does this have signal
at pin 92 of IC4001?
No
Change IC4001.
TROUBLESHOOTING GUIDE
No
No
No
Yes
Yes
E-9
E-9
Change IC4001.
Check pins 1 and 7 of IC8501
and peripheral circuit.
Connect CP8501.
Change DIGITAL PCB.
Check line circuit IC4001
to CP8501.
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