Question about Samsung LTN4235X/XAA 42 in. Plasma Television

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Why is there a burning smell coming from the samsung 50" plasma TV, I have replaced the buffer which had burned out I replaced it but now I am affraid it has burned out as well. What is causing this to happen

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

zjut
  • 106 Answers

SOURCE: R4252 No picture, sound OK Y-Drive buffers overheating

Try to replace the Logic Board, about 50% chance to fix the problem.

Posted on Jan 04, 2008

SOURCE: Electrograph DTS4225PTD Plasma TV 42"

It's Y upper buffer, also cross matches, with LJ41-02760A which is for Samsung 42 Plasma

Posted on May 02, 2008

  • 11 Answers

SOURCE: no picture, just sound, blown y buffer board twice1

a4.. there are 2 of them, upper and lower buffer boards.. they control the top and lower half of screen devided horizontally, i have had many run ins with these sets. and usually the buffer boards arent cheap.

they plug into the ysus( y sustain).. its possible your y sustain is blowing the buffer moduals because one of its i.c.'s under the heatsink has popped on ya.. effectively creating a short that blows the buffer boards.
remove the buffer boards, turn tv on... feel the 2 silver heat sinks on that y sustain( beware dont zap urself.. just the tip of your finger on the heatsinks)

you may find that one is cold and one is hot...if so, you need a new y sus and probably to replace the buffer boards the a4 upper and a4 lower.

If you get a new ysus.. plug the a4 upper and lowers into it, look at your picture.. if ur missing the top half the top buffer is blown or lower half the bottom buffer is blown. or..no picture they could both be blown..an easy way to tell if u have no picture to diagnose is..touch the heatsinks that sit over the chips on the buffers..if they are red hot.. they are bad and shorted internally.

Posted on Dec 11, 2009

  • 1 Answer

SOURCE: my 50 inch samsung plasma tv turns off and on by

My Samsung 52" plasma TV will shut off while watching TV. It will do it repeatedly and we have to turn it back on. Is it overheating and shuts down? How can this be fixed?

Posted on Dec 19, 2009

  • 1 Answer

SOURCE: norcent plasma had smell of electrical burning and

picture woould blink on & off. sometimes ony half the screen would shoe. hitting the bottom of the set would reset the picture. then a electrical burning smell started & the picture went out for good. any ideas as to what it is?

Posted on May 30, 2010

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1 Answer

No picture and burning smell from left side


Bad COF ic on buffer board. Can usually tell which one's bad. It will look overheated or a hole in top of ic. Look at upper and lower buffer boards to see which ic is bad. Can get from Encompas Parts, Recommended replace y sustain with buffer.

Nov 26, 2011 | SNK Magnavox 42MF231D 42 in. Plasma TV

2 Answers

Hello, we we have a 50 inch Samsung Plasma TV, from Bestbuy, went to bed and it was working fine, woke up and now we have audio, but NOTHING on screen, completely, black...also tried DVD and same thing,...


Tries tv unplung,replug it back like about an hour later.For the tv to do a resetting itself back to the factory setting.Tv now 50/50 the tv might work as normal again.If the tv dosen't.Tv have a dead 1 or 2 backlight buffers boards have to be replacing.These 2 long backlight buffers boards only job are to provided a tv plasma screen panel for a backlight to see the picture.Tv now the plasma screen panel have no backlight that why ur tv have only audio sound and no picture.No experience in tv repair and never done any electronic board parts replacement before.Best just call many tv shops and explain the tv situation it in and get the best quote prices for parts and labors.Best prices parts and labors should be around $400 is fair more than that as i said shops around for more tv repair shops.

Aug 19, 2011 | Samsung HP-R5052 50 in. Plasma HDTV

1 Answer

Samsung hpr4252, sound but no pic, smells hot...


IF YOU WERE FACING THE TV FOR UPPER RIGHT YOU MAY A PROBLEM WITH YOUR UPPER Y BUFFER BOARD OR Y BOARD IF YOUR Y BOARD NIS DEFECT YOU MUST ALSO REPLACE YOUR TWO BUFFER BOARDS .

Mar 20, 2010 | Samsung HP-R4252 42 in. Plasma HDTV

1 Answer

My 50" plasma t.v. has a blue strip top to bottom that is always on the screen, what is the defect?


A solid blue line would imply that the lower buffer PCB has a loose connector or a bad buffer. Some plasma TV have these buffer ICs build right into the ribbon connector of the panel. At any rate, if you plan to have the TV repaired, STOP USING IT. Plasma panels are notorious for burn-in when viewing stationary images (station logos, video games, etc.). The blue line IS stationary and if you keep watching it, you will see the effects even after you correct the original problem.

Mar 15, 2010 | Samsung Televison & Video

1 Answer

My Sony plasma tv made a pop sound and now picture is dark.


You will need the y and x sustain boards replaced, possibly the buffers. very expensive repair. you can replace one board but its best to do all of them.

Jan 22, 2010 | Sony 50 in. Plasma TV

1 Answer

Hello, Has anyone ever had to replace the Part


If you had replace the y buffer board and it's doing the same thing, you might have a bad panel.

Dec 05, 2009 | Samsung PS50P7H 50 in. HD-Ready Plasma TV

1 Answer

My plasma tv had a crack sound lost pic but still have sound. Has horrible smell like something is burning


Ur backlight video inverter board it totally burn PCB,must be replace,might have to check for other boards ,because major burned.

Sep 28, 2009 | Samsung 50 in. Plasma TV

1 Answer

My 50'' Samsung Plasma has dead screen after only 2 years


Hi,
welcome to fixya!
without doing voltage checks, my best guess is this:

Plasma hpr5053 or hps5053 models will burn out a buffer board or both, there are two buffers and the Y board.
I usually change all 3 at once, but if on a budget you can try to remove one buffer and see if you get half picture (upper or lower)
this is something only a technician should attempt. the boards cost $200 each (buffers)
$300-$400 (Y board).
if you actually get half a picture the Y and one buffer are good, a bad buffer usually burns out the Y board. and in really bad cases the panel is bad also (not common, but possible)
For part#s , specific help you can post a model# , but again this is a repairmans job not something the average customer can fix.
hope this helps
Eric

Aug 27, 2009 | Televison & Video

1 Answer

Samsung HP-R4262- has sound but no picture...


YOU SHOULD HAVE REPLACED THE Y-MAIN BOARD AT THE SAME TIME, NOW DON'T TURN IT BACK ON UNTIL YOU REPLACE THE Y-MAIN OR IT COULD TAKE OUT THE NEW Y-MAIN

Sep 14, 2008 | Samsung SPN4235 42 in. Plasma HDTV

1 Answer

Electrograph DTS4225PTD Plasma TV 42"


It's Y upper buffer, also cross matches, with LJ41-02760A which is for Samsung 42 Plasma

Feb 29, 2008 | Electrograph Systems DTS4225PTD 42 in....

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