HCL HCMELWBT11 Service Manual page 32

18.5" LCD Color Monitor
White screen
Measure Q404 base
is low level?
Check CN403 is solder
and Q405 is OK
White screen
OK
NG
Check Correspondent
OK
component.
Replace PANEL
NG
X401 oscillate
waveform is normal
OK
Check reset circuit of
U401 is normal
OK
Replace U401
32
HCL HCMELWBT11
NG
Replace X401
NG
Check Correspondent
component.