A LG Smart TV Remote Control Repaired
This was brought to my shop for repair. It was working fine but even it was replaced with new batteries, it lasts for only a few hours and then shuts down and also mentioned that the batteries become very hot when installed in the remote.
It is clean and nice on the outside but when I tried to put some batteries in
there and check it out, I saw the big surprise….
It was nasty and it seems like batteries exploded in there but the problem was not just on that side; check the other side
Since it was working fine but the batteries become hot issue I decided to give it a clean and hope for the best.
I cleaned the whole remote control with IPA and then gave it a try. It was working fine still but the batteries were getting really hot. It seems there was a short somewhere on the lower side of the remote.
I took my multi meter out set to diode mode and started checking for shorts. It did not take long search because I found the short right away. It was a bypass SMD capacitor that was getting really hot when installing the batteries. Once I removed it from the board, the batteries were ok and it was working for a long period of time. Since it was working fine and it was only a bypass capacitor, I did not bother to replace it with a new one. I re soldered all the parts there and called it a successful repair.
This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.
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Note: You can check his previous repair articles in the link below: