Dell SP2009W Service Manual - Page 52

Check Q708, Q709, Q707

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

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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