Specifications

22" LCD Color Monitor Dell E228WFP
44
White screen
White screen
Measure Q603 base
is low level?
X301 oscillate
waveform is normal
Check Q603, Q602 is
broken or CN501 solder?
Check Correspondent
component.
Replace PANEL
Check Correspondent
component.
Replace U401
OK
OK
OK
Replace X301
OK
NG
NG
NG
NG
Check reset circuit of
U401 is normal