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Service Manual
White Screen
Check Q3，Q5 is broken or
CN405 solder?
Check Correspondent
component.
White screen
Measure Q9 base is
high level?
OK
NG
OK
Replace PANEL
NG
Y1 oscillate waveform
is normal
OK
Check reset circuit is
normal
OK
Replace MCU
57
ASUS VW223
NG
Replace Y1
NG
Check Correspondent
component.
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