Maintainability; Equipments And Tools Requirement; Trouble Shooting - AOC LM760S Service Manual

17" 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 100-240 is normal
No power
Press power key and look
if the picture is normal
NG
OK
Measure U701 PIN2=1.8V
U702 PIN2=3.3V
OK
X401 and X402 oscillate
waveforms are normal
OK
Replace U402
NG
Replace U401
Reinsert or check the
NG
Adapter/Inverter
section
NG
Check CN701 or replace
U701, U702
NG
Replace X401, X402
30
AOC LM760S