22” LCD Color Monitor Adelpia TGL2260A
34
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
Please reinsert and make sure
the AC of 100-240 is normal
Measure U704 PIN2 =1.8V
U703 PIN2=3.3V
Reinsert or check the
Adapter/Inverter section
X401 oscillate waveforms
are normal
Check CN701 or replace
U704, U703
Replace U401
Replace X401
OK
OK
OK
NG
NG
NG
NG
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