Maintainability; Equipments And Tools Requirement; Trouble Shooting - Adelpia TGL2260A 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
No Power
No power
Press power key and look
if the picture is normal
NG
Please reinsert and make sure
the AC of 100-240 is normal
OK
Measure U704 PIN2 =1.8V
U703 PIN2=3.3V
OK
X401 oscillate waveforms
are normal
OK
Replace U401
NG
Reinsert or check the
Adapter/Inverter section
NG
Check CN701 or replace
U704, U703
NG
Replace X401
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Adelpia TGL2260A