Dell SP2009W - Widescreen LCD Monitor Service Manual page 52

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