SOURCE: The power has gone - Samsung LT-P266W
I need to know if there is a red led that is on, or if there are no lights at all that come on, it's important because it will tell which board to replace, if your trying to trouble shoot it down to the component that is bad, good luck with it. I would call in a repair man.
SOURCE: fuse blown
Ours is 3 years old, no longer under warrenty and we just had the same problem. I bought a package of four fuses for $2.99 at Radio Shack. As the man mentioned earlier, follow the power cord to the fuse...very easy to find. Easy fix and saved a $100 service call. TV is working great.
SOURCE: LN-S4692D 46 in. HDTV T-Con Board
This answer is generic:
Most of the time they use fuse resistors. Sometime there a number of them. They are not all the same. This is not a simple fuse. It is a resistor combined with a fuse. You would need the service manual to properly identify the fuse resistor and have its spec. You would then have to order the correct one from a parts distributor. If it cannot be replaced generically, the original would have to be ordered from the manufacture.
In any case, if there is a blown fuse on a power supply board you can be sure that there are failed components that are most likely shorted. This would mean that the board would have to be troubleshooted to find and replace the defective parts.
Most of the circuit areas and the boards in these sets are not supported to be serviced at the component level. They change the defective boards as in the same process as servicing computers.
As for the heat problem, if you can find someone who is technically very competent, maybe he can custom install a fan for the area that is getting heated. It should be possible to find a 12 volt source from the main power supply to run a small fan to assist for extra cooling.
If you have your set in a cabinet, or if it is wall mounted it may run hotter. We found that sets that are wall mounted tend to fail more often because the heat can reflect off of the wall back in to the set. Cabinets tend to not allow the heat to dissipate as well as out in the open.
Jerry G.
SOURCE: I amd wondering on the Power Board #BN96-03775A on
Usually if they will plug in it is right, but if you have one of those that fit all, then I wouldn't be afraid to start with the first since if it doesn't work, you can always try the second. One may give a better picture than the other, that you might compare with.
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