FUNAI MAGNANOX BZV420MW8 Service Manual page 35

FLOW CHART NO.8
Audio is not outputted during playback.
Set the disc on the disc tray, and playback.
Are the analog audio signals outputted to each pin
of CN2201?
CN2201 17PIN AUDIO (L)-OUT
CN2201 15PIN AUDIO (R)-OUT
Are the analog audio signals inputted to each pin
of IC2804?
IC2804 6PIN AUDIO (L)-OUT
IC2804 2PIN AUDIO (R)-OUT
Do Pin(18) of CN2201 become "H" level?
Are the analog audio signals outputted to each pin
of IC2804?
IC2804 7PIN AUDIO (L)-OUT
IC2804 1PIN AUDIO (R)-OUT
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the audio
terminal (JK2805)?
Are the audio signals outputted to the audio
terminal (JK2751)?
Check the line between Pin(4,14) of IC2406 and
audio terminal (JK2751), and service it if defective.
No
Yes
No
Yes
No
Yes
No
Yes
No
No
Yes
Replace DVD Mechanism & DVD Main CBA
Assembly.
Check each line between each pin of CN2201
and each pin of IC2804, and service it if defective.
CN2201 17PIN → IC2804 6PIN AUDIO(L)-OUT
CN2201 15PIN → IC2804 2PIN AUDIO(R)-OUT
Replace DVD Mechanism & DVD Main CBA
Assembly.
Replace IC2804.
Check the periphery between Pin(1,7) of IC2804
and the audio terminal (JK2805), and service it if
defective.
Are the audio signals outputted to Pin(4,14) of
IC2406?
Are Pin(9,10,11) of IC2406 become "L" level?
Yes
Replace IC2406.
1-11-9
No
No
Replace IC1501.
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