My image wavers when it's hot, doesn't stay cool very long
So my dad used to have this TV and it never had this problem till right before he gave it to me. Unless the room is freezing, the tv will get hot very fast and then the image will start to freak out. It happens with any input. It just has to be on for more than a couple minutes. And it has tons of space behind it. What's wrong with it?
This area seems to be the warmest
And these two are slightly warm.
However the metal itself below the boards is extremely hot.
I've also noticed the tv makes odd sounds the hotter it gets. They are quiet. But noticible.
Here is the other board.
(Sorry the photos are so dark.)
And final one.
Update (03/15/2017)
I have also noticed on the casing for the tv, there are burn marks over where it would cover the left side panel, and right side panel. And in the direct center/top there is a burn mark as well.
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7 comentarios
jeffjeffjeff145 have you removed the back of the TV to determine which part or what location heats up? Could be an issues with the power board. Let us know what you find and post some pictures of your boards with your question. Use this guide Agregar imágenes a una pregunta existente for that.
- de oldturkey03
I have opened it and looked a couple weeks ago, but nothing seemed to be wrong with the wiring or anything. The screen and around the vents on the back just produce alot of heat. And once it gets hot enough, Horizontal lines travel up the screen. Turning it off and letting it cool fixes that but it takes awhile. How exactly is this TV supposed to stay cool? Is there a fan somewhere?
- de jeffjeffjeff145
Just checked and your model TV does not have a fan. Excessive heat is usually an indication of some component having failed. Turn it on with the back removed and see if you can narrow down what heats up. Post some images of all of your boards with your question. For that use this guide Agregar imágenes a una pregunta existente Whenever something heats up like that you need to check the MOSFETS and Diodes as well.
- de oldturkey03
I will do that. It might take a day or two though. That TV is way too heavy for me to lift alone.
- de jeffjeffjeff145
Ok I've opened up the back however I know very little about circuitry. Where are all the boards located?
- de jeffjeffjeff145
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