26
DV-49AV
1
2
3
4
A
B
C
D
E
F
1
2
3
4
N
O 5.1CH AUDIO O
N
PLAYBACK
Is there AUDIO signal at
pins 7 and
8
of IC
8
003,
IC
8
004 and IC
8
005 ?
Yes
Is there waveform at
pins 1, 2 and 3 of IC
8
003,
IC
8
004 and IC
8
005 ?
Yes
Check J
8
001, J
8
002 and
peripheral circuit.
N
o
N
o
Check AT+5
V
.
Change IC4002.
N
o
Is there voltage at pin 6
of IC
8
003, IC
8
004 and
IC
8
005 about 5
V
?
Yes
Change IC
8
003,
IC
8
004 and IC
8
005.
N
O OPTICAL OUT
Check P.CO
N
+D5
V
line.
N
o
Change OS
8
101.
N
o
Yes
about 2.5
V
?
REFER TO "
N
O DIGITAL
AUDIO O
N
PLAYBACK OF
COXIAL JACK"
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
