United Led 29" sometimes no picture only sound.

[valeriopkmn]

UNITED 29X15 Led sometimes no picture only sound.
If you unplug the tv and then replug, after 2 or 3 times of on/off by remote it works. What can it be? It's a shame replace it because as i said, sometimes it works.
Thanks in advice.

 

[Ralston18]

Update your post to include make and model TV.

 

[valeriopkmn]

MERGED QUESTION
Question from valeriopkmn : "United Led 29" sometimes no picture only sound."

UNITED 29X15 Led sometimes no picture only sound.
If you unplug the tv and then replug, after 2 or 3 times of on/off by remote it works. What can it be? It's a shame replace it because as i said, sometimes it works.
Thanks in advice.

 

[Ralston18]

When the TV does work will does it consistantly work if only turned off for a few minutes before being turned on again?

My thought is that some component needs to get warmed up enough and expand accordingly to maintain full connectivity.

Once cooled down - back to no picture.....