Denon DVD-1930CI Service Manual page 21

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FLOW CHART NO.21
Audio is not outputted normally.
Set the disc on the disc tray, and playback.
Are the analog audio signals outputted to each pin
of CN1601 on AV CBA?
CN1601 12PIN AUDIO(L)
CN1601 14PIN AUDIO(R)
Are the analog audio signals inputted to each pin
of IC1201.
IC1201 2PIN AUDIO(L)
IC1201 6PIN AUDIO(R)
Is the "H" level mute signal outputted to CN1601
on AV CBA ?
CN1601 13PIN AUDIO(L)-MUTE
CN1601 19PIN AUDIO(R)-MUTE
Are the analog audio signals outputted to each pin
of IC1201?
IC1201 1PIN AUDIO(L)
IC1201 7PIN AUDIO(R)
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L 13942296513
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the audio
terminal (JK1201)?
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Yes
Yes
Yes
Yes
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No
Replace the DVD Main CBA Unit or DVD Mechanism.
Check each line between each pin of CN1601
and each pin of IC1201 on AV CBA, and service it
if detective.
No
CN1601 12PIN → IC1201 2PIN AUDIO(L)
CN1601 14PIN → IC1201 6PIN AUDIO(R)
No
Replace the DVD Main CBA Unit or DVD Mechanism.
No
Replace IC1201.
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No
Check the periphery between Pins(1,7) of IC1201
and JK1201, and service it if detective.
co
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DVD-1930CI / DVD-757
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