Question about Zenith Z50PX2D 50 in. Plasma HDTV

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Z50PX2D 50 in. HDTV... Problem


I do hope you can help. My husband inherited a 60in Zenith TV from his grandparents several years ago. The manufacture date was July, 2002. The television is a Zenith model number R60v26. Well early September of this year (2007) we turned the TV on one day and everything on the TV has a double in green. I have tried to adjust the convergence but the green does not adjust. The Blue and red I can move but it does not even give me the option to move the Green. We had a Television repair man come out to fix the TV, well he took all the info with him to get the replacement part. Well yesterday he gave us all our information

I have this same problem with my tv too, is it hard put put this part on or can someone that doesn't know anything about tv open and put it on?

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  • claudiav26 Feb 11, 2008

    Well I bouth the $10 cheap ones already but if you know a site where I can get better ones please let me know the site thanks.

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You have a problem with the STK convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall. You may be able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This gives the hour glass effect on the picture and the advanced convergence screen. This is an indication that the modules pins aren't solidly connected (meaning soldered) properly. Remove the circuit board and clean the old solder off & resolder the modules pins to the circuit board reconnected the board and then retest by again pushing on the heat sink. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs. take the appropriate cautions working around the high voltage of the set.
If soldering doesn't help, then the modules have died and need replacing. Don't buy the $10 cheap ones. Most of them have an upgraded version that is stronger. Also look for any burned resistors in the vicinity of the modules.
Best of luck, hope ya fix it.

Posted on Feb 11, 2008

  • Greg Collins Feb 11, 2008

    andrewelectronics.com

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    vancebaldwin.com

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