Specifications

20" LCD Color Monitor Dell SP2009Wc
52
White screen
White screen
Measure Q708 base
is high level?
X402 oscillate
waveform is normal
Check Q708, Q709, Q707
is broken or CN701 solder?
Check Correspondent
component.
Replace PANEL
Check Correspondent
component.
Replace U402
OK
OK
OK
Replace X402
OK
NG
NG
NG
NG
Check reset circuit of
U402 is normal