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Lg 42px4mvh ta

There was a shorting sound on the TV and then just went dead. There is power on on the power cord but the TV is dead.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: sound working no picture

It definitely has a problem, possibly the Y sustain board and y drivers Up/Lwr. Best suggestion is to take it in for service or have someone come out how has experience with Plasma repair.

Posted on Feb 18, 2009

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  • 10 Answers

SOURCE: sound working no picture

Depending on the events leading up to what happend...
Was your plasma tv recently transported or moved from one area to another?

One thing about plasma tv's if you lay them horizontally or has been tilt at a certain angle they will have problems projecting any picture. PLASMA tv's should ALWAYS stay vertically standing. you can let it stand where it should be for atleast 24 hours ( i recommend upto 48 hours) without plugging it in.. (no electricity what so ever) then check if it works.

About the click you heard, it might have been a blown fuse. Probably resulting from plugging in the tv while it was in a "chemical inbalance". therefore my above recommendation is a bit too late. if you still have warranty then you have no problem. just the hassle.

Posted on Mar 01, 2009

  • 1 Answer

SOURCE: LG 42PX4MVH PLASMA TV - Sound but no picture.

I have the same issue with my LG 42PC3DVA and I narrowed it down to the Y SUS board. After a little research there are a few items that are prone to go. The ceramic fuses (as you found), sometimes the capacitors on the Y SUS, Z SUS, and power supply go along with them You can tell because thy will be bulged at the top instead of flat. I replaced a few of my capacitors - they are only $0.89 each so it was MUCH cheaper than a board.

The other thing that is common on the Y SUS in particular are the FETs (also called MOSFET). They can be replaced if you are good with a soldering gun but they are static sensitive so be grounded. They are also a bit tricky to test so you may want to do some research on how to determine if this is the issue... or you can just replace the whole board.

Posted on Oct 28, 2009

  • 11 Answers

SOURCE: my LG plasma tv

You burnt out the backlit lamp. unfortunately there is no easy fix for this. If still underwarranty great, if not... it will cost more to fix it then buy a new tv probably.

Posted on Mar 28, 2011

deltonsmith9
  • 96 Answers

SOURCE: LG 47LG50 dead....no red light, no blue light, no green light. It made a CLICK sound and went dead. Power Supply?

may be power supply need more information

Posted on Jun 04, 2012

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Hi plasma lg tv 42px4mvh-ta when i switch on it does's not switch on, i contacted technician the Guy told me that the main power supply board has a problem of suppling power how will you assist me


Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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Looking for part number of a 52 inch lg tv model number 42px4mvh-Ta stk


LG 42PX4MVH manual

Here is a link I found for the schematics. I didn't try it but you should be able to find part numbers from there.

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Can my plasma 42 lg model 42px4mvh-ta be repaired it just won't go on


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/

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While watching the TV the screen went blank and there wasn't any sound. I've checked all the cables. I tried turning it off and back on but when I did this the power light flashes 27 times before...


The tv power supply board it is shorted and dead.That the board where the tv power a/c cord plug into it.Tries websites like Shojimmy.com,Ebay.com to buy a whole new refurbish tv power supply board for the replacement.

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how can I do to obtain the afficheur of my LCD LG42 MODEL 42LH20r-ta

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My LG plasma tv model 42PX4MVH the picture has gone all black but the sound is still there,


You burnt out the backlit lamp. unfortunately there is no easy fix for this. If still underwarranty great, if not... it will cost more to fix it then buy a new tv probably.

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LG made a pop sound and video/audio went black. It doesn't even turn on now. The TV is only 2.5 years old.


The tv power supply board is the causes and the problems,it dead.The the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

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LG 32L4DS this is my TV... my wife was watching and the screen went black no picture no sound any suggestions or is it a recyclable?????


Tv now turn on,tv have power LED light indicator flashes?Tries tv unplug,replug it back like an hour later,the tv now,should resetting itself back to the factory setting.The tv should work now.Not,than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

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2 Answers

LG 42PX4MVH PLASMA TV - Sound but no picture.


You need the ysus board. This is a very common problem with LG's. If it is coming up with the fuse removed you are essentially removing the short from the power supply so that it can come up and deliver other voltages for sound and all. Check out encompassparts.com if you are going to try to repair this yourself. Thanks

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