1-11-9
E439ATR
Are the analog audio signals outputted to each pin
of CN1504?
CN1504 17PIN AUDIO (L)-OUT
CN1504 15PIN AUDIO (R)-OUT
IC1505 1PIN AUDIO (L)-OUT
IC1505 7PIN AUDIO (R)-OUT
IC1505 2PIN AUDIO (L)-OUT
IC1505 6PIN AUDIO (R)-OUT
Replace IC1505.
Check the periphery between Pin(73,74) of IC1506
and the audio terminal (JK1504), and service it if
defective.
Check each line between each pin of CN1504
and each pin of IC1505, and service it if defective.
CN1504 17PIN
→
IC1505 2PIN AUDIO(L)-OUT
CN1504 15PIN
→
IC1505 6PIN AUDIO(R)-OUT
Are the analog audio signals inputted to each pin
of IC1505?
Are the analog audio signals outputted to each pin
of IC1505?
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)?
Yes
Yes
Yes
Yes
No
No
IC1506 77PIN AUDIO (L)-OUT
IC1506 76PIN AUDIO (R)-OUT
Check each line between each pin of IC1505
and each pin of IC1506, and service it if defective.
IC1505 1PIN
→
IC1506 77PIN AUDIO(L)-OUT
IC1505 7PIN
→
IC1506 76PIN AUDIO(R)-OUT
Are the analog audio signals inputted to each pin
of IC1506?
Yes
No
IC1506 73,74PIN AUDIO-OUT 1 (AV1)
IC1506 71,72PIN AUDIO-OUT 2 (AV2)
IC1506 67,68PIN AUDIO-OUT 2 (REAR)
Are the analog audio signals outputted to each pin
of IC1506?
Yes
No
No
No
No
Check the periphery between Pin(71,72) of IC1506
and the audio terminal (JK2001), and service it if
defective.
No
Check the periphery between Pin(67,68) of IC1506
and the audio terminal (JK1503), and service it if
defective.
No
Do Pin(19) of CN1504 and Pin(38, 39) of IC1504
become "H" level?
If Pin(19) of CN1504 become "L" level, replace
DVD MECHANISM & DVD MAIN BOARD
ASSEMBLY.
If Pin(38, 39) of IC1504 become "L" level, replace
IC1504.
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
B
Check the AL+5V(2) , AL+9V
line and service it if defective.
Replace IC1506.
Yes
No
Is 5V voltage supplied to Pin(63) of IC1506?
Is 9V voltage supplied to Pin(75) of IC1506?
Summary of Contents for RD-X V45KB
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