Sharp DV-NC200SS Service Manual page 41

FLOW CHART NO.7
Audio is not outputted.
Set the disc on the disc tray, and playback.
Are the analog audio signals outputted to each pin
of CN1601 on Main CBA?
CN1601 13PIN DVD-AUDIO(L)
CN1601 15PIN DVD-AUDIO(R)
Are the analog audio signals inputted to each pin
of IC1201.
IC1201 6PIN DVD-AUDIO(L)
IC1201 2PIN DVD-AUDIO(R)
Is the "H" level mute signals outputted to CN1601
on the Main CBA ?
CN1601 14PIN DVD-AUDIO(R)-MUTE
Are the analog audio signals outputted to each pin
of IC1201?
IC1201 7PIN DVD-AUDIO(L)
IC1201 1PIN DVD-AUDIO(R)
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the L/R OUT
terminal (JK751)?
Are the audio signals outputted to Pin(1,3) of
JK101 (Scart jack)?
Are the audio signals outputted to Pin(14,15) of
IC751?
Are the "H" pulse inputted into Pins(9,10,11) of IC751?
Replace IC751.
Yes
Yes
Yes
Yes
No
No
Yes
No
Replace the DVD Main CBA or the DVD Mechanism.
Check each line between each pin of CN1601
and each pin of IC1201 on Main CBA, and service
it if defective.
No
CN1601 13PIN → IC1201 6PIN DVD-AUDIO(L)
CN1601 15PIN → IC1201 2PIN DVD-AUDIO(R)
No
Replace the DVD Main CBA or the DVD Mechanism.
No
Replace IC1201.
No
Check the periphery between Pins(1,7) of IC1201
and JK751, and service it if defective.
Yes
Check the line between Pin(14,15) of IC751 and JK751,
and their periphery, and service it if defective.
No
Replace IC501.
1-11-9
H9941TS