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1 Tv screen keeps going off but the sound still works
My tv keeps playing up, sometimes it works without a problem for hours on end and then others after 10/15 minutes the screen will gradually go black starting from the bottom and then the whole screen goes off but the sound still runs through the tv perfectly fine, after unplugging from the wall and leaving for a while the tv will come on again and work fine until it happens again. Obviously this is a huge inconvince as I use the tv frequently, any suggestions on what the problem may be ( something simple or something complex) don’t want to replace the whole tv if it is only something minor.
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You did not ask a good question: you did not specify/identify your tv model. You did not even mention its type.
If your tv is a LED-backlighted LCD panel model, then its backlight system could be failing. If you use it at high brightness, then you might be able to postpone the inevitable (total backlight failure), by lowering its backlight brightness setting.
por unsubstantiated
Could also be a CCFL type with the inverter going thermal fail.
por Kevin Sargent
Hello Lewis, please shine a flashlight at the screen and let us know if you can see the picture. This test will help direct the diagnosis.
Cheers…
por timotheus