
1-52
TROUBLESHOOTING GUIDE
NO AUDIO ON PLAYBACK
Is there AUDIO signal at
pin 1 and 7 of IC8003 ?
Yes
Is there waveform at pin
7 and 8 of IC8004?
No
Yes
Check ic8003 and
peripheral circuit.
Yes
No
No
Check IC8004 and peripheral
circuit.
Change IC4001.
Check IC2001 and peripheral
circuit.
When DVD Playback , Is
there VIDEO OUTPUT ?