Dell SP2309Wc Service Manual page 54

23" LCD Color Monitor
No picture (LED orange)
No picture
The button if
under control
OK
Mea Measure U701 PIN2=3V
U711 PIN2=1V
OK
X401 oscillate
waveform is normal
OK
Check HS/VS from
Replace U401
CN101is normal
OK
Replace U401
NG
NG
Replace
U701, U711
NG
NG
X401oscillate
waveform is normal
OK
Check reset circuit of
U401 is normal
OK
Replace U401
Replace X401
Check Correspondent
component
54
Dell SP2309Wc
NG
Replace X401
NG
Check Correspondent
component