AOC 2036Va - Maintainability and Troubleshooting

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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
(1). No Power
No power
Press power key and look
if the picture is normal
Please reinsert and make sure
the AC of 100-240V is normal
Reinsert or check the
A
da
p
ter/Inverter section
X401 oscillate waveforms are normal
Check CN701,U701,U703
Replace U401
Replace X401
OK
OK
OK
NG
NG
NG
NG
Check U701 Vout=3.3V
U703 Vout=1.8V