Question about Panasonic PT-51HX42 51" Rear Projection Television

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Convergence line will not move to match cross hairs

I have apanasonic pt-51hx42 tvand I am havin trouble i try to set the green line and cannot get it to match up in the cross hairs (wont go left or right) as well as not getting all the crosses to match up. What parts do you reccomend starting with

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The green line will not move. it is stationery and red and blue have to adjusted to it

Posted on Sep 08, 2009

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Posted on Jan 02, 2017

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1 Answer

Green convergence will not adjust


Projection TV2_bing.gif sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony, Samsung2_bing.gif, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith2_bing.gif, and others. You can get a convergenece repair kit from the link below.

Common Symptoms include....
  • Screen looks 3D2_bing.gif
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on - TV may also make a chirping noise.
Here are some photos of convergence problems.

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Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash2_bing.gif focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a solution

93a1209.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from www.TvRepairKits.com

May 23, 2010 | Panasonic PT-51HX42 51" Rear Projection...

1 Answer

My Panasonic rear projection TV color is off


hello it sound like convergance ic might be the trouble it's a big job to do yourself a lot of testing and a lot of desoldering and soldering get a quote from an engineer

regards
shaun

Jan 19, 2010 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

I have a panasonic pt-51hx42. I was just


your convergence power supply blew a fuse & probably one if not both of the STK ics. Normally when this happens the short takes out the low value resistors connected to the ics.
it is common practice in the shop to replace both STKs and resistors

Jun 09, 2009 | Panasonic PT-51HX42 51" Rear Projection...

1 Answer

Cross hairs


Hello, You need 2 convergence ICs if you cannot converge the red and blue lines on top of the green "cross hair". You should be able to use the front panel controls to move the red and blue around. If you can move them around and they just won't move completely on top of the green then the ICs are bad. The ICs are mounted to large,finned heatsinks and have numbers that start with "STK-" and have numbers following. These parts are available from http:\\www.tritronicsinc.com.

Dec 01, 2008 | Toshiba 42H83 42" Rear Projection...

1 Answer

Convergence


You need sevice code to enter convergence.

Mar 27, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Convergence


When this happens it means the convergance Ic's have failed ( STK392-110's) they will need replacing then the cross hairs will move again

Feb 07, 2008 | Panasonic PT-56HX40 56" Rear Projection...

2 Answers

Picture not lined up


You will need to replace the convergence ICs I'm afraid. Then do another alighnment. If you already replacxed the IC's, you most likely did not get the exact replacement ICs recommended by the service manual, but whats called after market type IC's, and they just wont do!.

Jun 09, 2007 | Panasonic PT-51HX42 51" Rear Projection...

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