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3. Panel Power Circuit
White screen
Measure Q705 base
is high level?
X401 oscillate
waveform is normal
Check CN101 is solder
and Q704,Q705 is OK?
Check Correspondent
component.
Replace PANEL
Check Correspondent
component.
Replace U401
OK
OK
OK
Replace X401
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal