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Someone gave me a 48"smart TV made by LG but said that the popping noise happened and then the screen went black. I see other answers for capacitors but those were for plasmas, is it true for a smart TV as well that this may be the problem? Also should I tackle it myself I am tech savvy but not electronic.
Hi @jag21 , There’s not too much difference between plasmas and LCD TV as far as the power supplies go. Checking the capacitors is always a good first step when a TV fails. What other symptoms are showing, e.g. power light on/off, blinking/steady etc.? Also have you checked the fuse (if there is one) on the power board ? They can sometimes make a loud noise when they blow. Just make sure that the power is disconnected from the TV when you go to work on it. It’s only later when you may need to make voltage measurements that the power needs to be on. (assuming you have the gear to do this)
@jag21 besides all the great things already addressed by @jayeff I would suggest that you remove the back of your TV and take a good look at all the boards. Remove them as well and take a look at the underside of the board. VCheck for obvious burn marks etc. Post plenty of pictures with your question so that we can see what you see. Use this guide Adding images to an existing question for that. Pay particular attention to the power board and check the rectifier (BD101) and other diodes. Check all three fuses on the board F100 F101 F501 Let us know what you find.
