So recently my TV screen started randomly turning black with the sound staying on,
I checked it with a flashlight and it seems there's a faint image
The screen blacking out is happening randomly between 10 minutes and 2 hours
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Your observation is good.
Expanding capacitors would be a very likely cause. It is an all to common problem.
The voltage to your backlights is going on/off and those caps will cause if they are in that circuit.
They can also cause it if they are in another circuit.
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@drortedyogev
there is a possibility of LED backlight failing.
is it still under warranty?
try this.... what if you lower the display brightness of the tv?
observe how long does the screen blackout.
- de Augustine
i bought the tv secondhand for dirt cheap so no warrenty, il try that, ive opened the tv to check the mainboard and saw that one of the capacitors is expanding,ill replace him, if that wont work il replace the whole board since its like 30usd to replace
- de Dror Ted Yogev