Toshiba DVR19DTKB2 Service Manual page 33

Are the analog audio signals outputted to each pin of
IC1509?
IC1509 73,74PIN AUDIO-OUT 1 (AV1)
IC1509 71,72PIN AUDIO-OUT 2 (AV2)
IC1509 67,68PIN AUDIO-OUT (REAR)
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)?
FLOW CHART NO.7
Audio is not outputted during playback.
Set the disc on the disc tray, and playback it.
Are the analog audio signals outputted to each pin of
CN1502?
CN1502 17PIN AUDIO (L)-OUT
CN1502 15PIN AUDIO (R)-OUT
Are the analog audio signals inputted to each pin of
IC1509?
IC1509 77PIN AUDIO (L)-OUT
IC1509 76PIN AUDIO (R)-OUT
Are the analog audio signals outputted to each pin of
IC1509?
IC1509 73,74PIN AUDIO-OUT 1 (AV1)
IC1509 71,72PIN AUDIO-OUT 2 (AV2)
IC1509 67,68PIN AUDIO-OUT (REAR)
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)?
C
Yes
Yes
Yes
Yes
No
Is 5V voltage supplied to Pin(27, 29, 47 ,63) of IC1509?
Is 9V voltage supplied to Pin(75) of IC1509?
Yes
Replace P1(AV
ASSEMBLY).
Check the periphery between Pin(73,74) of IC1509
No
and the audio terminal (JK1504), and replace
P1(AV ASSEMBLY) if defective.
Check the periphery between Pin(71,72) of IC1509 and
No
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 MAIN
BOARD ASSEMBLY).
Check each line between each pin of CN1502 and each
pin of IC1509, and replace P1(AV ASSEMBLY) if
defective.
No
→
CN1502 17PIN
→
CN1502 15PIN
No
Is 5V voltage supplied to Pin(27, 29, 47 ,63) of IC1509?
Is 9V voltage supplied to Pin(75) of IC1509?
Yes
Replace P1(AV
ASSEMBLY).
Check the periphery between Pin(73,74) of IC1509
No
and the audio terminal (JK1504), and replace
P1(AV ASSEMBLY) if defective.
Check the periphery between Pin(71,72) of IC1509 and
No
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.
1-11-10
No
Check the ECO+5V, ECO+9V
line and replace P1(AV
ASSEMBLY) or P4(PW/SW
ASSEMBLY) if defective.
IC1509 77PIN AUDIO(L)-OUT
IC1509 76PIN AUDIO(R)-OUT
No
Check the ECO+5V, ECO+9V
line and replace P1(AV
ASSEMBLY) or P4(PW/SW
ASSEMBLY) if defective.
E9TK3TR