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Question about Panasonic PT-53WX53 53" Rear Projection HDTV-Ready Television

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Misconvergence Specifically, how would someone go about doing a convergence setup on a RCA P56940 56" projection tv? There is problems with both vertical and horizontal alignment. The three colors and separated and the picture has a concave arch to it both top and bottom.

Posted by Jon Bailey on

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  • Anonymous Nov 06, 2007

    My picture appears to be concave.

  • Anonymous Feb 24, 2008

    The colors are misaligned and the picture has a convex shape,

  • avitosh Apr 13, 2008

    Specifically, how would someone go about doing a convergence setup on a Panasonic 56" projection tv? There is problems with both vertical alignment. There is a blue color separated and the picture has a concave arch to the top.

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2 Answers

Buddy Clements

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It can be done without Chipper check. Go to Parameter 80 and it can be done .First correct any green geometery. Then work from there. All this is covered on the ptk 195 cd

Posted on Oct 03, 2007

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Anonymous

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Convergence on RCA P56940 chassis PTK195 can only be done by service center with RCA Chipper Check computer interface box. Sounds like possibly missing -15 volt or +15 volt supply to digital convergence circuit, bad i.c.'s U19503 or U19504. Supply voltages come from regulator supply transformer T19701 diodes CR19707 (-15 volts) and CR19709 (+15 volt)

Posted on Dec 22, 2006

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Hi, I own an RCA HD56W58 TV and just replaced the Deflection Board as well as the HV Block. Everything went well but, when I tried Auto Convergeance, I get message, "Sensor Unresponsive, trouble shoot...

jvalen3070,

This may not solve all your problems because the adjustment you are talking about is a course adjustment only and does not tweak the alignment across the entire screen so you could still have areas of misconvergence. It would be better to correct the problem. Your unit either has a problem with the sensors located around the perimeter of the screen or the convergence circuit. If no wires are disconnected from the sensors, and this is the most likely cause, I would change the convergence ICs. I have a tip at http://www.fixya.com/support/r4220499-change_projection_tv_convergence_ics which explains the process. If changing the convergence ICs does not solve your problem see my tip at http://www.fixya.com/support/r4273935-replace_digital_convergence_box for additional troubleshooting.

Thanks for usiing FixYa and for the great rating.

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Is there also a misconvergence? If so you need to replace the convergence ICs. I have a tip at http://www.fixya.com/support/r4220499-change_projection_tv_convergence_ics which explains the problem, how to correct it and where to get the parts. Let me know if you need more help. Thanks for using FixYa and for the generous rating!!

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http://www.tvrepairworld.com/
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