Technical information

35
3. Panel Power Circuit
White screen
Measure Q404 base
is high level?
X401 oscillate
waveform is normal
Check CN403(CN405: E191HQ/ E181H&E161HQ) is
broken or Q405 is solder?
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