Maintainability; Equipments And Tools Requirement; Trouble Shooting - Adelpia TGL2200A Service Manual

22" LCD Color Monitor

8. Maintainability

8.1 Equipments and Tools Requirement

Voltmeter; Oscilloscope; Pattern Generator; DDC Tool with an IBM Compatible Computer; Alignment Tool;
LCD Color Analyzer; Service Manual; User Manual.

8.2 Trouble Shooting

8.2.1 Main Board
(1)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 U702 PIN2=3.3V
U701 PIN2=3V
OK
X401 oscillate waveforms
are normal
OK
Replace U401
Reinsert or check the
NG
Adapter/Inverter
section
NG
Replace U702，U701
NG
Replace X401
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Adelpia TGL2200A