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My 42 inch hisense is making a static sound from the front or back when low or high how to make it stop

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Hi there, move it away from where its standing to another corner, you probably have some electric interference from the wall.

Posted on Nov 15, 2014

  • Latesha Nov 16, 2014

    Thanks for the response.
    So far the noise stopped on its on.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

budmrtn
  • 11361 Answers

SOURCE: My 42" phillips will all

It can be the unstable power supply, bad sound processor or power amplifirers problem, you will have to open it up and check the inside starting at the DC outputs of the power supply module first, you may have to replace the main board since it contains, the video processor, tuner, audio, T-CON driver.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Posted on Oct 02, 2010

gopakumarg43
  • 74118 Answers

SOURCE: I have a hisense 42 inch plasma and it comes on

Check its main power switching regulator boare. Replace it as card basis.

Posted on May 23, 2012

dduncan774
  • 760 Answers

SOURCE: My hisense 50 inch lcd tv has picture but no sound.

If you still have back light, then the T-con is probably defective. If you don't have back light, then you either have a bad power board/inverter or a defective panel

Posted on Mar 20, 2013

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If it is new I would definitely insist on having the matter investigated and repaired under warranty. It should not be doing that!

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Check the speaker/s first. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

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2 Answers

My hisense 50 inch lcd tv has picture but no sound.


If you still have back light, then the T-con is probably defective. If you don't have back light, then you either have a bad power board/inverter or a defective panel

Mar 20, 2013 | Hisense Televison & Video

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My 29 inch crt has sound but no picture


Sounds like a high voltage power supply problem. With the TV on, check to see if CRT has a static charge on face of screen by placing back side of hand in front of it and feel for static charge. Also you could hold a piece of tissue paper in front of the screen to see if static electricity from the CRT attracts it. If no static charge is present, the problem is more than likely in the high voltage power supply. Unless it is something simple, like a loose connection, it would probably be cheaper to replace the TV. Do not probe around in the HV power supply while the TV is on--it could prove deadly.

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I have a 42 inch Hitachi plasma tv that is making a very loud static noice coming from the internal speakers. It stays at a contstant very loud volume unless I completly mute the tv or turn the volum


Based on what you have tried if a buzz or loud static via the speakers you have something wrong in the audio output circuit of the set--problem here is that circuit may be part of the Main board that processes all signal---a look inside---following the speaker leads back would lead you to that board.

A simple thing to do to narrow it a little (you may have done this) is with sound all the way off put your ear to the internal speaker--hear anything at all like a deep hum?

Depending on age of set and cost of the board likely bad it may or may not be a do it yourself repair.

SD TECH

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Hi

Try Buying a aerial with a booster, u can purchase a inline booster at dicksmith or most large electrical stores.

kinds regards Kyle

u can reach me at
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