My Akai LCT2715 27" LCD had some sort of power supply problem, which caused the picture to gradually darken over the course of some weeks. While it was doing that, I coped by adjusting the brightness, contrast, and other picture settings until it just got too bad. I had the power supply problem fixed, but now I can't restore the picture. Whites seem really washed out, mainly, but adjusting contrast and brightness numbers don't so much fix the problem.
Are there default / factory values for picture settings? Can someone who likes their picture tell me what their values are for:
Contrast
Brightness
Back Light
Saturation
Hue
Sharpness
Color Temperature
Thanks very much.
LCD TV TroubleshootingThe 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 Scree. 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.
I would bet on the power supply....these (and other Akai LCD) are notorious for filter capacitors. Look for electrolytic capacitors with a dome-like bulge on the top of them. They are usually located at the top of the power supply board where the power output lines run out.
Hpe this helps you out....
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picture darken
i hav the same problem hav u found a solution yet
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