Toshiba RD-XV48DTKB, Service Manual

Page: 36 / 124

1-11-11 E3NG1TR
Are the analog audio signals outputted to each pin of
CN1502?
CN1502 17PIN AUDIO (L)-OUT
CN1502 15PIN AUDIO (R)-OUT
Check the periphery between Pin(73,74) of IC1509
and the audio terminal (JK1504), and replace
P1(AV ASSEMBLY) if defective.
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
(JK1502)?
Yes
Yes
No
IC1509 77PIN AUDIO (L)-OUT
IC1509 76PIN AUDIO (R)-OUT
Check each line between each pin of CN1502 and each
pin of IC1509, and replace P1(AV ASSEMBLY) if
defective.
CN1502 17PIN
→
IC1509 77PIN AUDIO(L)-OUT
CN1502 15PIN
→
IC1509 76PIN AUDIO(R)-OUT
Are the analog audio signals inputted to each pin of
IC1509?
No
IC1509 73,74PIN AUDIO-OUT 1 (AV1)
IC1509 71,72PIN AUDIO-OUT 2 (AV2)
IC1509 67,68PIN AUDIO-OUT (REAR)
Are the analog audio signals outputted to each pin of
IC1509?
Yes
No
No
Check the periphery between Pin(71,72) of IC1509
and the audio terminal (JK2001), and replace
P1(AV ASSEMBLY) if defective.
No
Check the periphery between Pin(67,68) of IC1509
and the audio terminal (JK1502), and replace
P1(AV ASSEMBLY) if defective.
No
Replace the P2(DVD MECHANISM & DVD/HDD MAIN
BOARD ASSEMBLY).
B
Check the ECO+5V, ECO+9V
line and replace P1(AV
ASSEMBLY) or P3(PW/SW
ASSEMBLY) if defective.
Replace P1(AV
ASSEMBLY).
Yes No
Is 5V voltage supplied to Pin(27, 29, 47 ,63) of IC1509?
Is 9V voltage supplied to Pin(75) of IC1509?