Trouble Shooting - HP 2009v Service Manual

20" LCD Color Monitor

9.2 Trouble Shooting

9.2.1 Main Board
No Power
No power
Press power key and look if the
picture is normal
NG
Please reinsert and make sure the
AC of 100-240V is normal
OK
Measure U703 PIN 2=1.8V
U701 PIN 2 = 3.3V
OK
X401 oscillate waveforms are
normal
NG
OK
Replace U401
NG
NG
Measure CN701
Replace X401
32
Reinsert or check the
power section
NG
Check power section
OK
Replace U701/U703
HP 2009v