20
DV-220V-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
DOES
N
OT LIGHT O
N
DISPLAY
Yes
Is the voltage at
pin 7 and pin 21 of IC601
about 3.0
V
?
Check AT+3.3
V
line of
POWER BLOCK.
N
o
Replace
V
651 or IC601.
N
O PLAYBACK PICTURE OF A
V
JACK
Yes
N
o
Yes
Check J7302 and peripheral
circuit.
Is there
a signal at pin 98 of
IC4001 ?
Check IC4001 and
peripheral circuit.
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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