HP 2009M Service Manual page 33

20" LCD Color Monitor
No picture (LED is orange)
No picture
The button if
under control
OK
Measure U703 PIN 2=1.8V
U701 PIN 2 = 3.3V
OK
X401 oscillate
waveform is normal
OK
Check HS/VS from
Replace U401
CN101is normal
OK
Replace U401
NG
NG
Replace
U701/U703
NG
NG
X401 oscillate
waveform is normal
OK
Check reset circuit of
U401s normal
OK
Replace U401
Replace X401
Check Correspondent
component
33
HP 2009M&2009F
NG
Replace X401
NG
Check Correspondent
component