SOURCE: plasma wnt stay on
I have had this problem in some models of plasma sets before. In most cases the power supply and main drive boards had to be replaced. In a small number of cases the failure was the screen itself.
In all cases, the cost of the repair was expensive. For the screen failure, the set was scrapped.
Jerry G.
SOURCE: Samsung LN46A550 LCD power on/off problem again.
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.
SOURCE: Samsung LN46A550 LCD power on/off problem again.
Yes,T-Con board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-Con board for the replacement.
SOURCE: Hello I have a Philips Living colours lamp. When I
Place the remote very near the Philips logo on the lamp and press the on button for several seconds.
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