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LCD TV Troubleshooting
The defective LCD TV may have the following common symptoms:
Symptom:
No picture on screen but LCD TV still has sound.
Solutions:
The problem is cause by defective inverter. Replacing ivnerter will solve hte problem.
Symptom:
Screen flash on and off between 1/2 to a few seconds,
but power indicate light stays on and TV still has sound.
Solutions: The problem is cause by defective
inverter.
Symptom:
Blue Screen but no picture
Solutions: The problem is cause by defective
Main Board(AD Board). In some cases, this problem may cause by the defective Screen Controller board.
Thsi board is mounting on teh back of LCD TV Screen.
Symptom:
Power light stays on but no display and sound
Solutions:
The problem is cause by defective Main Board(AD Board) or Power supply board.
Symptom:
No Power or Power indicate light does not lits
Solutions: The problem could cause either
by defective Power supply board or defective Main Board(AD Board).
Symptom:
Screen is half dim and half bright
Solutions: The problem is cause by defective LCD Panel.It needs to be replace.
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