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(3). White screen
White screen
Measure Q302 base is low level?
OK
Check Q301, Q302 is broken or CN301 solder?
NG
OK
Replace Panel
NG
Check Correspondent
component.
X401 oscillate waveform is normal
NG
OK
Check reset circuit of U401 is normal
NG
Check Correspondent
component.
OK
Replace U401
Meridian 1
41
Replace X401
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