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1
QQ
3 7 63 1515 0
A
DOES NOT LIGHT ON DISPLAY
Is the voltage at
pin 13 and pin 43 of IC651
about 3 V ?
B
Replace V651 or IC651.
NO PLAYBACK PICTURE OF AV
JACK
C
TE
L 13942296513
Is there
a signal at pin 187 of
IC4002 ?
D
Is there
video signal at pin 33
of IC7301 ?
Change IC7301.
E
www
F
24
1
http://www.xiaoyu163.com
2
No
Yes
No
Y es
Yes
No
x
ao
y
.
i
2
http://www.xiaoyu163.com
3
8
Q Q
3
6 7
1 3
u163
.
DV-49AV
3
4
2 9
9 4
2 8
Check AT+3.3V line of
POWER BLOCK.
1 5
0 5
8
2 9
9 4
Check IC4002 and peripheral
circuit.
Check J7302 and peripheral
circuit.
m
co
4
9 9
2 8
9 9
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