Tvs that won't power on after storms & electrical blackout
Dear Azriel: I hope you can help me out with some information. A few weeks ago, we had several severe thunderstorms that caused the most damaged trees I have ever seen and even caused the power to go out completely a few times. Following these storms, there are now many TVs that will not even power on. I am assuming this is due to some sort of power surge. Do you think this would cause the TV's fuse to blow or something more serious with the power supply? Could you explain to me the different possible problems and solutions?
Thank you very much for your attention to this matter and I look forward to hearing from you very soon.
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it must be some transistor that is failing.. i recomend you to give it to someone who can fix it for you, because tvs, even if they are unplugged, they can give you a strong electrical charge tat can even kill you..
Simply put, there's another part that needs to be replaced, or the one that was replaced is defective. Call the repair shop that did the work for you. Their work is warrantied for 90 days. However, if your set needs a different part, and this is an out of warranty repair, you will have to pay additional costs.
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You need to look at the vertical IC on the main board. It has seven pins. Clean off solder from pins with solder wick. Clean off with flux remover. wipe clean and resolder the IC. This should repair set. This is a common problem with Sony TVS.
the picture tube on your TV set is exausted. Please contact your nearest Authorized Sony Service for further help/advice.
After all, Sony is a good choice. The next TV set you buy could be one of Sony-s Bravia LCD.
Most likely cause would be a blown fuse on the power supply if you are getting no lights on the front, no response from the buttons, and no warmth from the back of the set.
First check that not only is the power socket in the wall working, but also that the plug on the TV power cord is not faulty or distorted so it doesn't make the circuit when plugged into the wall, also if it has a fused plug, check that.
Then if you feel up to taking the cover off, make sure the set is unplugged and leave it for a few minutes first.
take off the back cover (usually a few screws around the base of the set, but it should be obvious)
follow where the power cord enters the box, and about the first thing it should connect to is likely to have a fuse. Probably a couple of metal spring clips with a glass tube type fuse sitting in them. The fuse should have a rating stamped on it and you should be able to get a replacement at most hardware stores, but make sure you get the same type as well as rating.
If a replacement fuse doesn't cure the problem then the next thing to suspect would be the transformer and rectifier circuit - the fuse should have protected these, but sometimes it doesn't work that way. If you need help checking these then please ask again, but I suspect the fuse is your problem.
Hope this helps you out, please ask again if you need more info :)