Maintainability; Equipments And Tools Requirement; Trouble Shooting - AOC 2036Sa Service Manual

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
Please reinsert and make sure
the AC of 100-240V is normal
Check U404 Vout=3.3V
X401 oscillate waveforms
are normal
No power
Press power key and look
if the picture is normal
NG
OK
Q410 Vc=1.8V
OK
OK
Replace U401
NG
Reinsert or check the
Adapter/Inverter section
NG
Check CN404, U404, Q410
NG
Replace X401
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