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Lg ultra slim 21 tv sound picture power

I have an lg 21inch ultra slim tv .. the prob is when i power on it produce the power soud but icant see the picture nor sound of the pictures ( the screen is black )

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  • 153 Answers

Ok ur tv powersupply is ok but horizantal is not working chk ur fbt hot & micronass

Posted on Jun 02, 2014

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Posted on Jan 02, 2017

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SOURCE: no picture/sound

There is a PCB mounted 1amp fuse that may have blown, if this has blown the TV will be completely dead. The fuse is available from RS

Posted on Oct 19, 2007

  • 11800 Answers

SOURCE: On start up the TV produces a loud buzzing sound,

Major failure in the power source. If it's worth repairing only you know that - without actually seeing the tv i can  do just a very uncertain estimate of the price of the repair: around $150.

Posted on Jun 17, 2010

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Lg ultra slim TV supply STR 6554 ,110 volt drop in one second when we on the tv


Is the power source/transformer
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looks a bit past it in your photo

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If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Circuit diagrams of SMPS section of many popular brand devices are given. Search the site by type in the "brand name" or the STR number of your device, in the "Search box at the top right of the Homepage" to get gathered related posts.

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Sounds to me like something else is causing those parts to fail. It should be under warranty but depends on the repair shop. Why not just buy a new one.

Here are some choices for a new one:

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The Tcon board or the LCD panel is faulty . Can confirm by replacing the tcon board.
If you wish to get some details; check the site linked here. Pull up older posts.
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LG T.V.s can show pictures.
Just make sure they are in the right format.
I'm pretty sure .jpeg or .png should work.

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