Question about Sony KLV-S26A10 26 in. HD-Ready LCD Television

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Sony KLV-S26A10 no picture when coax inserted

Hello,
When the set is switched on and the coax is inserted the picture is switched off automaticly, when removing the coax again and hold it in front of the connector with metal case touching the metal of the tv (without making contact with the middle pin). the TV is playing ( distored picture of course) . After half a hour i can plug in the connector entirely en the sets plays OK.

Does anyone have an idee, in solving this problem?

thanks

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1 Suggested Answer

SuperTech-11
  • 1591 Answers

SOURCE: KLV S26A10 sony tv power

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.
You can order the capacitors online from places like www.digikey.com and they are usually less than a dollar each. They have a flat shipping rate (here it's $8) and the parts arrive next business day.

Posted on Jul 11, 2011

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