Forum Thread

LG LED TV is making popping noises and then shutting off and back on.. help!

wizard7926 18,471 5,680 September 13, 2016 at 01:17 PM
Our 2013ish LG 47" LED TV is making popping noises. The screen will turn off, and then turn back on. Sometimes it's just once, sometimes it won't happen at all over two hours of watching, sometimes it will happen 3 times in a minute.

I'm thinking capacitor, but how can I check? Anything else it might be?

This used to be a display unit at Target; I have to imagine it has something to do with that, but wanted to ask someone that knows more than I do. Thanks!

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Joined Jan 2007
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#2
I'd guess power supply (your capacitor guess fits there as well). Google the model number and see if others have had the issue.

TVs can be found so cheap here that I certainly wouldn't pay for a repair.
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Joined Sep 2007
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#3
Quote from uniquename View Post :
I'd guess power supply (your capacitor guess fits there as well). Google the model number and see if others have had the issue.

TVs can be found so cheap here that I certainly wouldn't pay for a repair.
Yeah, I actually didn't try replacing the power cord. I'll try that next and see if that makes a difference,

I was fiddling around with the surge protector this weekend and I might have accidentally loosened something. Will make sure everything is tightly connected and check again.
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#4
I meant power supply in the TV...but checking cords and surge can't hurt.
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Joined Sep 2007
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#5
Quote from uniquename View Post :
I meant power supply in the TV...but checking cords and surge can't hurt.
True. These reviews for the TV seem to point to the same issue with the power supply. Sounds like bad solders are causing it. According to one reviewer, I could either a) give it a nice smack, which works for days, hours, etc until I have to do it again, or b) pull the back off, find the bad solder, and resolder it. Hm..

(not sure if it will copy paste with the search intact, but I searched all reviews for "off", and got lots of screen turning on and off)

https://www.amazon.com/LG-Electro...K3WECO804A
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Last edited by wizard7926 September 13, 2016 at 02:31 PM
#6
The components most likely to be at fault could pose a significant shock hazard if you don't know what you're doing.
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#7
If it has been at display at Target it might have been turned on for God knows how long. No more warranty?
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#8
If it makes you feel any better I am having a similar problem with a Samsung. Its most likely something on the power supply board. For mine there are capacitor kits you can buy to replace them.
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