1-8-9
E7A70TR
Are the analog audio signals outputted to each pin
of CN1101 on BOARD POWER?
CN1101 14PIN AUDIO (L)-OUT
CN1101 16PIN AUDIO (R)-OUT
IC1201 1PIN AUDIO (L)-OUT
IC1201 7PIN AUDIO (R)-OUT
IC1201 2PIN AUDIO (L)-OUT
IC1201 6PIN AUDIO (R)-OUT
Replace IC1201.
Check the periphery between Pin(1,7) of IC1201
and the audio terminal (JK2201), and service it if
defective.
Check each line between each pin of CN1101
and each pin of IC1201, and service it if defective.
CN1101 14PIN
→
IC1201 2PIN AUDIO(L)-OUT
CN1101 16PIN
→
IC1201 6PIN AUDIO(R)-OUT
Are the analog audio signals inputted to each pin
of IC1201?
Are the analog audio signals outputted to each pin
of IC1201?
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the audio
terminal (JK2201)?
Yes
Yes
Yes
Yes
No
No
No
No
No
Do Pin(12) of CN1101 and Pin(38) of IC1501
become "H" level?
If Pin(12) of CN1101 become "L" level, replace
DVD MECHANISM & DVD MAIN BOARD
ASSEMBLY.
If Pin(38) of IC1501 become "L" level, replace
IC1501.
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.
B
