Question about Flat Panel Televisions
All of a sudden my lcd tv will not power up there is power at the plug
Problem: When the TV is turned on a picture appears for a few seconds and then the picture turns off. Audio is still heard.
Solution: Not a simple fix! This TV has 4 small florescent looking bulbs that act like a back light to light the image on the liquid crystal display (LCD). At least one of these bulbs is burned out or broken. The wires powering the broken bulb need to be cut and spiced together. Basically you’re bypassing the bulb and completing the circuit when cutting the wires going to the bulb on each end and splicing them together.
WARNING: This worked for me but no guarantee for anyone who tries it. This is a very involved procedure and involves completely dismantling your television. To be honest I don’t recommend anyone trying to fix it unless you are very technically minded and have a couple of hours to waste carefully tearing apart your TV. If anyone is willing to attempt this repair I am willing answer questions.
Cause of problem: It is my guess that this problem occurs when the TV is left on for extended periods of time. Like leaving the TV on when you fall asleep at night. My TV was left on a lot. I noticed that the plastic was melted and discolored where the bulb had burned out. (This can only be seen internally and is no way visible from the exterior)
Posted on Feb 14, 2009
As PAINTX said, one possibility is to check the wires/bulbs in the LCD Panel....mine can be easy found because the wire that connect one of the bulbs looks burned....after removed plastic,on LCD Panel corner, wire has no contact with the bulb....just need a solder iron and technical skills to repair it. After that, Picture looks normal.
If in your LCD TV, picture looks very, very dark, but you can see it seen, maybe you have to change Power Supply/Inverter Board (both circuit in same board, aprox. 50 dlls). Of course, also look for a defective capacitors, before buy the board.
If no picture at all, maybe the wires of the bulb lost contact.
Posted on Jul 30, 2010
did you make sure the voltage, amperage, and polarity were matched tv to plug? The information is found on the back of your tv and the plug must match that. If they do not match, you might have fried your tv.
Posted on Mar 11, 2009
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