HP L1906

19" LCD Color Monitor HP L1906
33
9.2 Trouble Shooting
9.2.1 Main Board
No power
No power
Press power key and look if the
picture is normal
Please reinsert and make sure the
AC of 100-240 is normal
Reinsert or check the
power section
X301 oscillate waveforms
are normal
Measure CN601 PIN5/6=12V?
Measure CN601 PIN9/10=5V?
OK
OK
NG
NG
NG
Check power section
Replace U401
Replace X301
OK
NG