My TV stopped working properly

Joined
Oct 5, 2021
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So one night i was sitting on the couch watching tv. And suddenly the tv switches source to the next source. I switch back to HDMI, and it works for a while. But then the exact thing happened again and continiued for some time. But then i have had enough! I switched out the tv to the second one we have in the house and then it worked (obviously).

But i still wonder why this happened, so anyone who is good at electronics please help me get an idea how to fix it.
1635603384455.png

A picture of the model (Samsung LN32D405 - 32")
 

Stitches

2 and a Half Dollarydoos
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Have you opened it up and given it a good clean inside?
 
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