HCL HCMDLWBT21 Service Manual page 32

15.6" LCD Color Monitor
White screen
White screen
Measure Q602 base
is low level?
OK
Check Q601 is broken or
CN601 solder?
OK
Replace PANEL
NG
Check Correspondent
NG
component.
HCL HCMDLWBT21&HCMDLWBN21
X401 oscillate
waveform is normal
NG
OK
Check reset circuit of
U401 is normal
NG
OK
Replace U501
32
Replace X401
Check Correspondent
component.