Maintainability; Equipments And Tools Requirement; Trouble Shooting - Fujitsu FA-156WB-MP Service Manual

15.6"W LCD Color Monitor

8. Maintainability

8.1 Equipments and Tools Requirement

1. Voltmeter.
2. Oscilloscope.
3. Pattern Generator.
4. DDC Tool with an IBM Compatible Computer.
5. Alignment Tool.
6. LCD Color Analyzer.
7. Service Manual.
8. User Manual.

8.2 Trouble Shooting

8.2.1 Main Board
No power
Please reinsert and make sure the
AC of 100V-240V is normal
No power
Press power key and look if the
picture is normal
NG
NG
OK
Check C423(+) =1.8V
U404 Vout=3.3V
OK
Check if X401 oscillate
waveforms are normal
NG
OK
Replace U401
NG
Check CN404 or replace Q409,
Q410 and U404
Replace X401
30
Fujitsu FA-156WB-MP
Reinsert or check the
power section