FUNAI DRVR-B778S - Page 36

1-11-12 E9G01TR
Check the periphery between Pin(21,25) of IC1518
and the audio terminal (JK1502), and service it if
defective.
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the audio
terminal (JK1502)?
Are the audio signals outputted to the audio
terminal (JK2001)?
Are the audio signals outputted to the audio
terminal (JK1505)?
Ye s
IC1518 21,25PIN AUDIO-OUT 1 (AV1)
IC1518 22,26PIN AUDIO-OUT 2 (AV2)
Are the analog audio signals outputted to each pin
of IC1518?
No
No
Check the periphery between Pin(22,26) of IC1518
and the audio terminal (JK2001), and service it if
defective.
No
Check the periphery between Pin(1,7) of IC1513
and the audio terminal (JK1505), and service it if
defective.
No
Check the AL+12V line and
service it if defective.
Replace IC1518.
Ye s N o
Is 12V voltage supplied to Pin(2,4) of IC1518?
"D"