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TROUBLESHOOTING GUIDE
TUNER AUDIO OF DVD MODE DOES NOT APPEAR
Is there a signal in at pin 5 and 7 of CP7301 with each input ? Yes
No
Check IC801 and peripheral circuit.
Is there a signal in at pin 1, 22 and 28 of IC7303 and 56, 100, 110 of IC4001 ? Yes
No
Check IC7303, IC4009, IC4010 and peripheral circuit.
Is there a signal in at pin 1, 2 and 3 of IC7301 ?
No
Check IC4001 and peripheral circuit.
Yes
Is there a signal in at pin 7 and 8 of IC7301 ?
No
Check IC7301 and peripheral circuit.
Yes
Is there a signal in at pin 1 and 7 of IC7304 ?
No
Check IC7304 and peripheral circuit.
Yes Go to NO AUDIO ON PLAYBACK.
E-26
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