DV-400V-S
24
1
2
4
1
2
3
4
C
D
F
A
B
E
DOES NOT LIGHT ON DISPLAY
Yes
Is the voltage at
pin 13 and pin 43 of IC651
about 3V ?
Check AT+3.3V line of
POWER BLOCK.
No
Replace V651 or IC651.
NO PLAYBACK PICTURE OF AV
JACK
Is there
video signal at pin 33
of IC7301 ?
Yes
No
Yes
Check J7302 and peripheral
circuit.
Is there
a signal at pin 187 of
IC4002 ?
Check IC4002 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
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299