Question about Zenith Z50PX2D 50 in. Plasma HDTV

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Zenith Z50PX2D 50" Plasma HDTV will not stay on. It clicks on then off then on then off several times. I unplug it and wait a few minutes and sometimes it will come on, but not today it just keeps going on and off.

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Had similar problem; I have determined that it was the capacitors in the powerboard! I replaced the capacitors at a higher voltage, and the tv is working again (for now) :) To anyone else having issues, I highly recommend looking at the powerboard before spending any money either fixing or replacing the tv. Take the back off the TV and look at the powerboard, if any of the capacitors are blown they will be bowed out in the back (should be flat) Mine had 7 blown capacitors, all were 3300uf 10v capacitors. (Funny enough it was every single 3300 10V capacitor on the powerboard that blew out...) The fix cost me a total of $21!! And $15 of that was for both soldering and de-soldering irons. Through e-bay I got the 3300uf 16v capacitors for $6.50 (including shipping) I am hoping that the higher voltage will thwart this issue in the future, however only time will tell. If they blow again, I'm going to try 25v capacitors. wish me luck!

Posted on Nov 21, 2010

  • Jenifer Gutke Jan 16, 2015

    deathmoon78 here - Just wanted to follow up, 1/16/2015, the tv is used every day, no issues since. This fix was by far the easiest and cheapest! If you come across this issue, I highly recommend checking this first!

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I documented my fix with pictures here -
https://docs.google.com/a/1414audio.com/document/d/1tw6YvcrBSLF1rD91uyNs6U9PQFLBPpQbSpT96BlqUP4/edit

Posted on Jan 02, 2012

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A common problem with this set. I have had it happen to me about a month ago. I searched online to find the most common fix to the the Y Sustain board. You can find this part online for about $150. I have used rivervalleyelectronics.net. Ultimately I chose not to fix my tv and bought a new one. Before trashing the TV I removed all the boards and have them available for sale if you are interested. I will sell all the boards, including speakers and cooling fans for $150 plus shipping. Contact me if interested.

Posted on Oct 07, 2010

  • Jenifer Gutke Nov 21, 2010

    Had similar problem; I have determined that it was the capacitors in the powerboard! I replaced the capacitors at a higher voltage, and the tv is working again (for now) :) To anyone else having issues, I highly recommend looking at the powerboard before spending any money either fixing or replacing the tv. Take the back off the TV and look at the powerboard, if any of the capacitors are blown they will be bowed out in the back (should be flat) Mine had 7 blown capacitors, all were 3300uf 10v capacitors. (Funny enough it was every single 3300 10V capacitor on the powerboard that blew out...) The fix cost me a total of $21!! And $15 of that was for both soldering and de-soldering irons. Through e-bay I got the 3300uf 16v capacitors for $6.50 (including shipping) I am hoping that the higher voltage will thwart this issue in the future, however only time will tell. If they blow again, I'm going to try 25v capacitors. wish me luck!

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