Question about Zenith P42W46X 42 in. Plasma EDTV

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My 42in plasma zenith hdtv had smoke boil out the top of it. The TV will still come on but has dots on the screen. Im not sure which board I would need to change to fix this problem?

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  • Zenith Master
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If you wish to get more details, check this site. Pull up older posts there. Check the site with patience, as it has over 2300 posts now. All are related to electronic equipment repair help. Search the site by 'Timeslide' option. It will make search easy. Or, type in the brand name to your device into its search box, and press "Enter"

Posted on Apr 21, 2013

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Posted on Jan 02, 2017

  • 319 Answers

SOURCE: Zenith Z50PX20

It is quite possible the magnesium capacitor next to the continium transformer needs replacement.

Posted on Feb 28, 2008

  • 6 Answers

SOURCE: ZENITH PLASMA

there is 4 boards that need replaceing

Posted on Mar 20, 2008

  • 1 Answer

SOURCE: fixing the Zenith 50" plasma

The problem is probably a shorted Z Sustain board located on the right side of the TV when viewed from the rear. The board sells for about $220.00. The pop sound comes from the speakers because the audio circuit is not properly muted before power down.

Posted on Jun 26, 2008

  • 3 Answers

SOURCE: Zenith Plasma TV Manual

I found it posted here MFL34797058_0.pdf

This is the web site...
http://tv.manualsonline.com/ex/thread/view/idThread/329713


Posted on Jun 03, 2009

  • 1 Answer

SOURCE: Please help us solve the red line through our 50" Zenith plasma

write an experience that you went trough where you had to use to help you solve this.

Posted on Aug 29, 2009

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1 Answer

Hi have a samsung 42 inch plasma, all of a sudden it has a band 20cm wide of dotted lines going across the whole screen, some channels or when playstation in use the band gets wider, does not seem to...


if the band is horizontal your tv has bad y-buffer board. Usually there are 2 buffer boards- top and bottom. if the problem is in the top half of the screen replace the top board, otherwise replace bottom board.
but better to replace both a the same time.

if the tv has a vertical lines from top to bottom it may have bad plasma panel and can be considered as not economical to repair.

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This brand is ok,it have it problems just like any other
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The set will need some screen voltages adjusted on the power supply board, the VS voltage is marked on the panel inside the set, find the VS test point and the VS adjustment potentiometer. adjust the voltage down at least 10 volts, if your not an experienced person in electronics, get a person that is, there is a high voltage on that board that is dangerous

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