Toshiba D-VR7KC, Service Manual

Page: 34 / 115

1-10-11 E9KG0TR
FLOW CHART NO.8
Audio is not outputted during playback.
Set the disc on the disc tray, and playback.
Check the line between Pin(9,
10, 11) of IC2406 and Pin(55)
of IC1501, and replace P1
(BOARD MCV) if defective.
Replace P1
(BOARD MCV).
Yes
Are the audio signals outputted to each pin of
CN2201?
CN2201 17PIN AUDIO (L)-OUT
CN2201 15PIN AUDIO (R)-OUT
IC2804 1PIN AUDIO (L)-OUT
IC2804 7PIN AUDIO (R)-OUT
IC2804 2PIN AUDIO (L)-OUT
IC2804 6PIN AUDIO (R)-OUT
Replace P1 (BOARD MCV).
Check the line between Pin(1,7) of IC2804
and the audio terminal (JK2805), and replace
P1 (BOARD MCV) if defective.
Check each line between each pin of CN2201
and each pin of IC2804, and replace P1 (BOARD
MCV) if defective.
CN2201 17PIN
→
IC2804 2PIN AUDIO(L)-OUT
CN2201 15PIN
→
IC2804 6PIN AUDIO(R)-OUT
Are the audio signals inputted to each pin of
IC2804?
Are the audio signals outputted to each pin of
IC2804?
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the audio
terminal (JK2805)?
Are the audio signals outputted to the audio
terminal (JK2751)?
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
No
No
No
Are the audio signals outputted to Pin(4,14) of
IC2406?
Are Pin(9,10,11) of IC2406 become "L" level?
No
No
Do Pin(18) of CN2201 become "H" level?
Check the line between Pin(4,14) of IC2406 and
audio terminal (JK2751), and replace P1(BOARD
MCV) if defective.
Replace P2 (DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY).
Replace P2 (DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY).