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GOT A LG 50PG20 -UA FLAT SCREEN THAT PLAYS SOUND BUT DOESNT SHOW A PICTURE,SCREEN IS COMPLETELY BLACK,NEED SOMEONES ASSISTANCE

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  • 198 Answers

One of the Y-SUS board, the Y-Buffer board may be bad, or both. Recommended repair is to change both of them at the same time, otherwise if you could not be sure which board is bad, you change one board, you will burn it out again.

Posted on Apr 24, 2017

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Posted on Jan 02, 2017

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SOURCE: LG 50PG20 Plasma,, nothing shows on screen its all black

This model was known for issues with the Y-sustain, Y-drives, and the Z-sustain boards. These boards help process the picture image to the screen.

When one or more of these boards fail, the screen stays black, and you only have audio & on/off.

You could call LG and try to get your TV repaired at a discount if you can convince LG to honor this known issue.

Another issue could be the actual panel has gone bad. The plasma panel in your TV has a two warranty and LG would fix that for free. Well…it would be free as long as it’s not past two years of your date of purchase.

What zip code are you in?

Posted on Jun 19, 2010

  • 4 Answers

SOURCE: 3inch bottom sceen no picture red and black fuzz

defective y driver lower board

Posted on Mar 09, 2011

  • 742 Answers

SOURCE: my lg tv 50PG20-UA has lost the picture completely but I have sound. how can I fix it?

You have a bad y main and maybe a bad buffer board. Need to have the buffers checked before replacing anything else.

Posted on Dec 09, 2014

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How to repair LG LCD TV 47LG70-UA no picture or sound


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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1 Answer

My lg tv 50PG20-UA has lost the picture completely but I have sound. how can I fix it?


You have a bad y main and maybe a bad buffer board. Need to have the buffers checked before replacing anything else.

Dec 09, 2014 | LG Televison & Video

1 Answer

Convert 42pg20-ua main board to 50pg20-ua


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Aug 27, 2014 | LG Televison & Video

2 Answers

LG 50PG20 Plasma,, nothing shows on screen its all black


This model was known for issues with the Y-sustain, Y-drives, and the Z-sustain boards. These boards help process the picture image to the screen.

When one or more of these boards fail, the screen stays black, and you only have audio & on/off.

You could call LG and try to get your TV repaired at a discount if you can convince LG to honor this known issue.

Another issue could be the actual panel has gone bad. The plasma panel in your TV has a two warranty and LG would fix that for free. Well…it would be free as long as it’s not past two years of your date of purchase.

What zip code are you in?

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LG TV - TV Guide Function Stuck


check the buttons on the remote and see if they are stuck or on the tv it self

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LG "NO PICTURE" , IF FIX WILL RECUR? ,DID LG FIX DESIGN FLAW 42PC3D


I had same problem - no picture, but sound worked - LG 42PC3d - was two months past warranty, but LG agreed to fix it as a warranty call. Service guy was out within a week to replace the Z SUS(?) board. Works fine now. This must be a typical problem, as LG did fix it, even though the warranty had expired. Good luck.

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