Service manual

Dell 1707FPc
55
White screen
White screen
Measure Q603 base
is high level?
X301 oscillate
waveform is normal
Check Q602, Q603 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