Question about Philips Magnavox 42MF521D/37 Television

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Black screen on a magnavox plasma tv. First half top black then bottom half black and now all black with little red dots shooting all over

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 80 Answers

SOURCE: Screen lower half goes black/blank

The lower "Y Buffer" board is defective. Best repaired by a technician, or contact Phillips support for the part if you think you are able to replace a small circuit board on your own.

Posted on May 21, 2009

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techman
  • 3130 Answers

SOURCE: Little red dots

The driver board is going bad it sounds like and if you do not call up and get it fixed under warranty, as it should still be under a warranty, then its going to be a nice hefty repair bill. Good Luck Ps Please dont forget to rate this thread

Posted on Oct 19, 2006

  • 1 Answer

SOURCE: Red Dots on My Plasma.

Did you get this problem resoslved? I had the same issue a few months ago. I tech came by and took my TV to the shop, a few days later he said it was fixed as they needed to make some adjustments.....The TV has been fine up until a week or so ago and now the red dots have appeared again. Was wondering what happened to yours.

Posted on Dec 28, 2006

  • 52 Answers

SOURCE: 42" Philips plasma screen goes black

you need to replace y-sustain board.

Posted on Jul 25, 2008

praky16
  • 744 Answers

SOURCE: Screen Problem

hi....Your tv picture is managed by several boards, the two specific ones are the ysus and the xsus. The Y controlls the horizontal pixelation and the X the verticle, if you are having horizontal problems then its the Ysus thats faulty, on this particular set, the Ysus board has two accompaning buffers that are particularly troublesome. I've had more than one of these sets in the shop recently with the same ailment.Sounds like your buffers are starting to go out. The screen is split horizontally by the two long skinny buffers attatched to the Y main, if the bottom one has one leg in the grave you'll be getting a partially black screen or no picture at all. The colored lines running through the screen are more typical of a failing buffer. Are you interested in taking this set apart and putting a couple hundred into fixing it?  When buffers go they usually take the Y main too. Worse case scenario you're gonna be out about $350 dollars to fix it yourself. Best case, a ribbon is loose on the bottom buffer and with a dismantle you'll be able to connect it again..

thank u rate me!!

Posted on Feb 12, 2009

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1 Answer

My plasma screen goes black on bottom 1/2 of the screen


In most cases the lower Y-Buffer board causes this issue. Unless you know how to work on a TV it is suggested that you have a technician look at the TV and repair it for you.

Nov 05, 2009 | Philips Magnavox 42MF521D/37 Television

1 Answer

Screen was going red on the top half of the screen, then..


The Y buffers were going bad, sounds like they went , you should get the Y upper and Y lower also the Y main. be aware the screen may be bad but tou won't know till you try the Y boards,

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1 Answer

Red static in black background ~ thin line running down center


Robjrpena,

Did you find a solution to your "red dot" problem? I'm having the same issue :(

Thanks John

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1 Answer

Samsung Plasma TV has horizontal lines of colored dots


I have the same problem, currently searching for a solution. Have you resolved your problem yet? Looking to repair myself, any tips or ideas that you have/expirenced would be greatly appreciated. Thanks, Todd

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3 Answers

Plasma tv has little red dots in the black


This problem (known as sparkles) can be cured by adjusting the ramp control on the Y-Sustain board. If this does not cure the dots then there is a software remedy for the control board which an LG repair centre could fix. Failing that a replacement board is required. The orbitor & whitewash are like screen savers to help to prevent a screen burn from a permanently displayed image.

Dec 31, 2008 | LG 42PC3D 42 in. Plasma Television

1 Answer

Tv play but no picture


I have a 51" magnavox plasma. after about one half hour the bottom half of the picture goes black, and u can still see the top half of the picture. what can that be

Aug 11, 2008 | Televison & Video

4 Answers

Sanyo dp42746 half screen blacking out


http://cgi.ebay.com/philips-plasma-Y-board_W0QQitemZ270262136649QQcmdZViewItem?hash=item270262136649&_trkparms=72%3A552%7C39%3A1%7C66%3A2%7C65%3A12&_trksid=p3286.c0.m14.l1318

Jul 20, 2008 | Sanyo DP42746 42 in. Plasma Television

1 Answer

Model 42mf231d/17 42" plasma


If the loss of picture is either on top half or bottom half of screen. there are y buffer boards that go from top to bottom on left side of screen when looking at back that control those sections. when there is loss of half of picture then buffer associated with that area would be at fault and would need to be replaced. when i see a degrading symptom such as loss of picture on top half or bottom half leading to no picture issue normally you would check heat syncs on y sustain board and if not heating up after a few minutes of being turned on would recommend replacing y main and both y upper and lower y buffer boards as they complete a circuit

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1 Answer

Screen black after big storm...


The set has sound and no picture.If you the SSB could be the issue but the tiny red dots on a black screen will need the panle replaced also. There is a way troble shooting can be done to determine if you will need the SSB or the SSB and the panel.

May 19, 2008 | Philips 42PF9630A 42 in. Plasma Television

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