Having problems with your Flat Panel Televisions ?

Samsung LN46A550 LCD power on/off problem again. Red light blinks then clicks on and off and then repeats the cycle. Only way to turn off is to unplug the set. When tv has eventually come on after a long time and I turn on my dtv component, I get a picture for like 4 seconds and then the screen goes all green or rainbow vertical lines and the tv starts to cycle on and off again. It will cycle on and off until I turn the dtv component off. Once I do that it will cycle of then onf again and the



Answers :

It is the Main A/V board that is faulty, not the power supply. The rainbow screen that you are seeing and the searching for signal message before it shuts off confirms this. It is the large board at the center of the tv. If you can get me the part number off it, I can find you the replacement. It will be either printed on the board itself or on a small label.

Sai.
Hello,

Your power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Hoping that will help in the problem....

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