1-11-10 E3B90TR
FLOW CHART NO.7
Audio is not outputted during playback.
Set the disc on the disc tray, and playback it.
(DVD MODE)
Or, playback by selecting the picture in HDD top
menu. (HDD MODE)
Are the analog audio signals outputted to each pin
of CN1502?
CN1502 14PIN AUDIO (L)-OUT
CN1502 16PIN AUDIO (R)-OUT
IC1508 1PIN AUDIO (L)-OUT
IC1508 7PIN AUDIO (R)-OUT
IC1508 2PIN AUDIO (L)-OUT
IC1508 6PIN AUDIO (R)-OUT
Replace IC1508.
Check the periphery between Pin(73,74) of IC1509
and the audio terminal (JK1504), and service it if
defective.
Check each line between each pin of CN1502
and each pin of IC1508, and service it if defective.
CN1502 14PIN → IC1508 2PIN AUDIO(L)-OUT
CN1502 16PIN → IC1508 6PIN AUDIO(R)-OUT
Are the analog audio signals inputted to each pin
of IC1508?
Are the analog audio signals outputted to each pin
of IC1508?
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the audio
terminal (JK1504)?
Are the audio signals outputted to the audio
terminal (JK2001)?
Are the audio signals outputted to the audio
terminal (JK1503)?
Ye s
Ye s
Ye s
Ye s
No
No
IC1509 77PIN AUDIO (L)-OUT
IC1509 76PIN AUDIO (R)-OUT
Check each line between each pin of IC1508
and each pin of IC1509, and service it if defective.
IC1508 1PIN → IC1509 77PIN AUDIO(L)-OUT
IC1508 7PIN → IC1509 76PIN AUDIO(R)-OUT
Are the analog audio signals inputted to each pin
of IC1509?
Ye s
No
IC1509 73,74PIN AUDIO-OUT 1 (AV1)
IC1509 71,72PIN AUDIO-OUT 2 (AV2)
IC1509 67,68PIN AUDIO-OUT-R (REAR)
Are the analog audio signals outputted to each pin
of IC1509?
Ye s
No
No
No
No
Check the periphery between Pin(71,72) of IC1509
and the audio terminal (JK2001), and service it if
defective.
No
Check the periphery between Pin(67,68) of IC1509
and the audio terminal (JK1503), and service it if
defective.
No
Do Pin(12) of CN1502 and Pin(20, 21) of IC1501
become "H" level?
If Pin(12) of CN1502 become "L" level, replace
DVD MECHANISM & DVD MAIN BOARD
ASSEMBLY.
If Pin(20, 21) of IC1501 become "L" level, replace
IC1501.
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
Check the AL+5V(2) , AL+9V
line and service it if defective.
Replace IC1509.
Ye s N o
Is 5V voltage supplied to Pin(27, 29, 47 ,63) of
IC1509?
Is 9V voltage supplied to Pin(75) of IC1509?
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