Question about LG 42LG50 42 in. LCD HDTV

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My 42 inch LG tv, has an rather loud humming/buzzing noise when the Television is switched on, the noise is quite constant and is a constant pain

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: 42 inch LG Plasma TV - Lost picture

Our LG 50" plasma tv screen went black after a popping noise but still had sound, after great diliberations decided to take the back off and have a peek!
We unplugged the tv and tested the fuses (there were three we could see) one had blown, the one on the left as you look at the back of the tv it also has one above it. We wrote the code/seriel number down and took the fuse to the electrical wholesalers Maplin and bought a pack of 10 fuses for £1.29 replaced the fuse in the tv and everything now fine!!!!!!
Hope this might be of use to anyone whose lost the picture after a loud popping/snacking noise but still has sound.

Posted on Jan 17, 2008

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SOURCE: LOUD BUZZING/HUMMING SOUND- CAN HEAR OVER AUDIO

have someone check speaker ground to the TV chassis. Your speakers are picking up reverb from the Video Signal.

Posted on Aug 19, 2009

  • 325 Answers

SOURCE: just bought a 42 inch lg tv and cant programme my

please follow the steps below with you sky remote:

TV
RED + SELECT (hold these down until it flashes twice)
TV
0056

Try the volume button if this works then press SELECT. If it does not work then press TV again then try the volume ( repeat this step until the volume works. Dont forget to press the SELECT button to save the code to the remote.

This should sort you out. Please leave a thumbs up when you get it working.

Cheers Little Dish Fitter

Posted on Sep 28, 2009

dave1645
  • 834 Answers

SOURCE: Buzzing noise from 42 inch Samsung Plasma TV

this is a comon occurance in theis model it is caused be loose laminants in the switching tranformer sometimes it can be fixed by covering it with clear GE silcone

Posted on Dec 01, 2009

  • 8457 Answers

SOURCE: LG 42LH30 Audio Problem (Background Buzzing)

Ur power supply board.Transformers have have high voltage gap.This problems must take the tv aparts put some glue arond the transformers,sometime solved this problems,or must replaced all the trnsformers make the humming noise.Brand new tv take it back,where u bought it get a replacement or call the Manufacture help to fix the problems or replaced the part that cause the problem.

Posted on Feb 08, 2010

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Ur power supply board.Transformers have have high voltage gap.This problems must take the tv aparts put some glue arond the transformers,sometime solved this problems,or must replaced all the trnsformers make the humming noise.Brand new tv take it back,where u bought it get a replacement or call the Manufacture help to fix the problems or replaced the part that cause the problem.

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2 Answers

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have someone check speaker ground to the TV chassis. Your speakers are picking up reverb from the Video Signal.

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