Question about Zenith Z50P3 50 in. Plasma TV

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Plasma tv z50p3 zenith

What could be the problem if the TV has sound but only a top line at a black screen?

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  • Zenith Master
  • 687 Answers

Most likely buffer PCB

Posted on Nov 30, 2013

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Posted on Jan 02, 2017

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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

jan mczeal
  • 632 Answers

SOURCE: my 50 inch zenith plasma tv model number Z50P3

The problem lies in the X-Drive boards or the TCPs (tape carrier packages) and they are not serviceable. Once faulty the X-Drive boards must be replaced. The worst scenario is a bad TCP because it indicates a bad panel and you have to replace the panel.The X-Drive boards deliver color information to the vertical grids of the panel through the TCPs. That's why when a fault occurs in the TCPs, vertical black bars appear on the screen and an a much larger part when an X-Board fails. Your TV uses three of these boards, one each driving the right, center and left portion of the plasma panel. The left X-Board has eight TCPs and seven to each of the right and center X-Boards. In your case, the vertical grids driven by the center X-Board is dead but you can't tell the board has failed, It is due to the fact that both the right and left boards are okay but only two TCPs are good on each of them. Meaning there are six bad TCPs on the left board and five on the right. Remember a bad TCP indicates a bad panel and you have at least eleven bad TCPs. The only solution here is buy a new panel or probably a salvaged one auctioned on ebay or have your set or its parts auctioned on ebay then buy a new plasma TV.

Posted on Dec 04, 2009

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Plasmas are like tube TV's(CRT). Once the plasma tube breaks, air gets in, plasma gas gets out. And that's it. They are an enclosed vacuum picture tube. I don't know why people buy plasma. The newer LED have a much better picture. Rich people who swear by plasma, are ridiculous in my opinion. Again, if plasma tube breaks, thats it. Any wrong jarring can break a plasma tube.

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2 thin vertical blue lines, near center and right side. Do i need to replace LRC buffer boards. Z50p3 50 in plasma.


By thin line I assume its one pixel in width. A single pixel wide line is an indicator of a defective panel.

Oct 30, 2013 | Zenith Z50P3 50 in. Plasma TV

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What size screw does a Zeneth 50in plasma tv use to mount up


This set is actually LG and have seen this question before on those--a quick call with the model number will give you the answer from Zenith--they are standard bolts available from Home Depot etc.

Apr 03, 2012 | Zenith Z50P3 50 in. Plasma TV

1 Answer

After warm-up screen flashes and loses color but comes back on and off intermittidly. This is a 50" Zenith Plasma tv. thanks.


Sounds as if a cable connection is bad. Check the cables first. If cable are good, change inputs, if cables are bad replace cables. If it's component, make sure that red, blue or green didn't come loose on both sides...the tv and the source. If you still have problems, check for red video noise on the screen itself, preferably when it's on but with on input (black) If you notice this, your plasma is failing.

Mar 23, 2011 | Zenith Z50P3 50 in. Plasma TV

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I have a z50p3 I tried to hook a samsung 1600


Sorry, man I have the same problem, with the same tv and player. Did you ever get a solution? LG Service Tech came out and his LG bluray player worked, whereas my Samsung didn't hooked to the TV. (It would spordically work going thru my HK254 AVR.)

He said either 1) the Samsung player was defaulting to a format that the Zenith being 3 years old could not decode (eg. 1080P) or that I might need to change inputs several times to get it to sync up or 3) by an LG Bluray player.

He said the Zenith was old and that newer sets are built with circuitry to help navigate the handshake easier. He couldn't find any service bulletins on it, and the one I got from LG he said didn't exist.

Feb 28, 2010 | Zenith Z50P3 50 in. Plasma TV

2 Answers

Have a Zenith 50" plasma model #Z50P3...no picture but have sound. of course my 1 yr warranty ran out last week.


Place a warranty service request anyway. Many times with something that fails that close to the warranty period, the company will still cover it. If you get no where with the initial rep, speak to a supervisor +/or manager. This is too close to the warranty end and you should be covered. Be nice but firm in your disappointment with the product and you may get warranty service.

Keep us posted.
Dan

Mar 09, 2009 | Zenith Z50P3 50 in. Plasma TV

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