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22" LCD Color Monitor
(3). White screen
Measure Q703 base
is low level?
Check Q703 is broken or
CN401 solder?
Check Correspondent
component.
White screen
OK
NG
OK
Replace Panel
NG
X402 oscillate
waveform is normal
OK
Check reset circuit of
U402 is normal
NG
OK
Replace U402
35
AOC 2212ph
NG
Replace X402
Check Correspondent
component.
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