Screen comes on for 3 seconds, then all black with audio.

Justin_209

Prominent
May 22, 2017
1
0
510
0
Every time i turn on my tv the screen comes on clearly for around 3 seconds then goes black.

LG Electronics 60UB8200 60-Inch 4K Ultra HD Smart LED TV (2014
 

Turbo_

Commendable
Dec 5, 2016
27
0
1,610
10


honestly, I can't tell you for sure what it is but I work with live production and one of our iMacs did the same thing and it turned out to be a fried motherboard. doubt your tv has a fried motherboard though lol.
 
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