Question about Panasonic PT-51HX41 51" Rear Projection Television

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IPanasonic PT-51HX41 51 in. Rear convergence problems

I replace the stk's and now the screen told me chk OB38D. What means that?

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Re: IPanasonic PT-51HX41 51 in. Rear convergence problems

It work by pressing power and action ON THR RECIEVER came back on with all king of things turn off then back on its ok

Posted on May 24, 2008

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Re: IPanasonic PT-51HX41 51 in. Rear convergence problems

This is really not my field. But i think you are in the service mode. try action on the remote and down volume on the tv. to get out of it. let me know if it works. I am starting to replace my STK too. Krazytech

Posted on Oct 09, 2007

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I have Panasonic PT-51G42C. Colors are distorted. Try entering service starts with chk screen CHK 1294F 00000000 08 and later left with CHK 12950 00000000 00...feels like convergence...

Hi Lit,

Please confirm if the picture looks like these.



If not, can you provide me sample pictures of the symptoms to accurately diagnose the faulty parts. Email it at

Thank you for your patience...

Oct 27, 2011 | Panasonic PT-51G42 51" Rear Projection...

1 Answer

If looking directly into screen you see all three lights Red Green Blue next to each other illuminating parts of the screen that color.

U mean on tv screen colors lines R,G,B colors are all mixed up and mis alignments all those R,G,B colors lines on the tv screen?Yes,u have colors shadow picture or 3D picture look alike?Yes,ur tv have a problems known as a convergence problems,it is dead.This tv convergence board it is dead must require replacing 2 STK of convergence ICS and some or all of it resistors too.To fixed the tv convergence board to fixed the tv picture convergence problems.The shop will cost u like $300-350 for parts and labors.

Jun 22, 2011 | Panasonic PT-52DL52 52" Rear Projection...

1 Answer

I have a Panasonic pt-53x42 projection tv. I believe i have a convergence problem. I have double lines running along bottom of screen..Any help please...

Yes,this problems is 100% convergence problems,it dead.The tv have colors lines R,G,B mis alignments anywhere in the pictures,have colors shadows pictures or 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts on the tv convergence board,must be replaced to solved the tv pictures convergence problems.The shop,will cost u like $300-350 for parts and labors.

Nov 23, 2010 | Panasonic PT-47WX53 47" Rear Projection...

2 Answers

I cannot get the blue convergence cross to line up with others.

The tv convergence board is dead.Any colors G,B,R don't alignment matches up.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Jul 17, 2010 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Had convergence problem; replaced 2 stk392;

100% Ur 2 STK convergence ICS are still dead.Ur ICS soldering some how,u got the ICS shorted.Or ur ICS not right kind of STK ICS,u replacing in ur convergence board.

Apr 07, 2010 | Panasonic PT-56WXF95 56" Rear Projection...

1 Answer


Have you checked the bias resistors for Exact Value. They normally change value when the stk's take a dive.

Dec 09, 2009 | Panasonic PT-46G40 46 in. Rear Projection...

2 Answers


Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Dec 02, 2007 | Panasonic PT-53WX52 53" Rear Projection...

1 Answer

Panasonic pt-51hx41e tv screen codes

I found this on the net let me know if this works for you Once you are in service moce on a Panasonic you must continue through all steps to the end to exit. It starts with the B parameters, then C, S, and M, then you can exit by pressing power and action ON THR RECIEVER for 2 seconds. The TV will turn off and come back on on ch3 with sound. BTW, you advance thru the menus by pressing power on the remote.

Oct 05, 2007 | Panasonic PT-51HX41 51" Rear Projection...

2 Answers


if you can remove the rear panel assy. look for the convergence ic's they start with stk--- and you got the part number you need a source panasonic is 814 source and the number on the ic's stk 390 ----/

Aug 22, 2007 | Panasonic PT-53WX42 53" Rear Projection...

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