Question about Televison & Video
There's a good chance you have failing electrolytic capacitors most likely in the power section.
Any caps in this (or any) 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 give a display when turned 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 similar issues) on youtube.
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.
Posted on May 24, 2011
The lamp is probably coming on just barely. There is hardly anything else in the tv that can cause this issue apart from the lamp and/or its power supply(ballast). What is the status of the LEDs infront of the tv? Which of them are blinking/lit when the tv is on and when you have sound but no picture?
Posted on May 23, 2011
Hello Press the MENU button to display the "Mode" menu. Press the UP or Down button to select "Reset", then press the ENTER button. The previously adjusted picture settings will be reset to the factory defaults.
Switch Off the set and pull out its power chord from the AC wall power socket, wait of one minute and then switch it On, and see whether it helps you.
If it does not help; reset the picture setting to factory defaults.
Resetting the Picture Settings to the Factory Defaults
Press the EXIT button to exit
If this also does not help you; suspect the set-top box, if used. just tune the TV with external antenna and see whether there is picture and sound with normally tuned Tv. If it is ok and there is no picture with set to p box only, make sure that either the video connection from set-top box to tv, of video out from set top box is faulty. OK
Press the MENU button to
display the "Mode" menu.
Press the UP or Down button to
select "Reset", then press the
The previously adjusted
picture settings will be reset
to the factory defaults.
Posted on May 21, 2011
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Posted on Jan 02, 2017
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