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

1 Answer

PT-53wx53g Convergence issue?

Last week, the color red shifted heavily to the left side of the screen. Calling around to authorized Panasonic reapir shops, the concensus was the convergence module(s). Picked a shop and had them come on-site to repair the TV.

They replaced 1 convergence module, and the TV was able to adjust convergence now. Problem is there are vertical color shifts on the extreme right of the screen, with some green and red "shadows" on images. The techs went through the convergence adjustment, but they couldn't get the "shadows" to align. It is really apparent when we put the aspect into a 4:3 mode, as you get an uneven red "shadow" on the right side of the image. It's like a double hump, aligned vertically. You also notice it when the station has a logo in the bottom right of the screen. It's like a double image, but in red.

They thought it may be a deflection module, which they said would be very expensive to replace, and didn't want to do it. They told me to see if it gets worse with time, and they would see if they could find a solution as well.

They replaced 1 convergence module only, and did not replace any resistors or other components. I asked about replacing the other convergence module, and was told it wasn't needed, since the blue was able to be aligned on the various cross-hairs during TV convergence. Also, I'm not really sure if they replaced the convergence module with an OEM (or equivalent) part or not.

I'm not sure if the shop is capable of repairing this issue, so I may want to tackle it myself. I'm a mechanical engineer, with some electronics experience. I can do the job IF I know what's wrong.

I guess I have a few questions.

1. Did the shop I used fix the proper thing, or should I have them come back out to complete the repair?
2. If it is a seperate issue, ie deflection module, is it fixable as well?
3. Is there another solutipon that I could attempt to fix the color "shadows" issue?

I've been reading through the various posts here, but couldn't find anything like my issue. I did find a reference to http://servicemanuals.vstore.ca/ where I can order a service manual and parts as needed. I see they offer free on-line support. How easy is this to communicate issues? Is it a worthwhile service?

Any help would be appreciated. I can provide more details if needed as well. The TV is usable now, and the picture issue is really just an inconvience, so I feel I can take some more time, research the issue, and fix it myself.

Thanks,
Don

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  • 2 more comments 
  • ismar2 Mar 02, 2009

    I did come across this post.



    http://www.fixya.com/support/r704766-con...



    I'll try the service menu convergence tonight and see if that helps.



    Thanks,

    Don

  • jpc5150 Mar 19, 2009

    The same problem just happened to me today! The Red shifted way left. The convergence adjustments on the tv will only move it over an inch or so, but it's probably 3-4 inches out of alignment.



    Can you tell me how much it const to replace that component?

  • jilarson Apr 05, 2009

    Panasonic CinemaVision 53" projection TV where the Red started to appear 4-5 inches higher then wher it should be.
    It seemed to be more on right and bottom.
    there are 9 adjustments I can adjust 1,2,4,6,9 but the others are so far off that they can't fix the difference. The adjustments that are way off will let me adjust left/right but not up/down.
    You can't adjust it far enough to get back in-line.

  • mark3051 Apr 14, 2009

    The same problem just happened to me today! The Red shifted way left. The convergence adjustments on the tv will only move it over an inch or so, but it's probably 3-4 inches out of alignment.
    my TV is
    Panasonic PT-47WX33 Rear Projection HDTV-Ready Television

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  • Panasonic Master
  • 3,459 Answers

Your TV most likely has one or more possible problems.

Problem #1: 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.
PT-53wx53g Convergence issue? - 701cb04.jpg
77ea520.jpg

Here is a quick test....

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

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. ThisPT-53wx53g Convergence issue? - 2c07611.pngn problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.


TV set aftPT-53wx53g Convergence issue? - 2c07611.pngange

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Posted on Mar 26, 2009

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Thats the error for convergence failure. Heres a link to the repair kit for your model which contains the parts and the CD with detailed instructions.
http://servicemanuals.vstore.ca/product_info.php/pName/panasonic-projection-tv-convergence-repair-kit-1/cName/convergence-repair-kits

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Have you moved the TV recently?, if so the red can(Red source) in the back bottom of the TV may have physically shifted in its holder, this is common when a rear projection tv is moved, jostled. Take the back off, look at the three cans,Red, Blue, Green, see if they all look like they are nested the same, bet the red is shifted a little.Good Luck with it!
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Both convergence amplifiers should have been replaced at the same time. If you can get your hands on a service maual, replace both of them, and go through the convergence alignment in the manual.

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call panasonic customer service....open a claim....problem is most likely that the eprom needs to be reflashed.....i contacted them several weeks ago, told them my problem which was 5 baseball sized colored spots, 1 red, 2 blue and 2 green. they had me perform a couple of tests using a dvd. when i reported the results they set up a service call with a local authorized repair shop. results were amazing. reflashing the eprom took about 4-6 minutes. in addition my brilliant color returned to the set as well as another problem of neon images going away. this was paid for by panasonic. my set was 2 years over warranty. panasonic has issued a service bulletin on this and are backing up these units.
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Panasonic PT-60LC14 Convergence Issue


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the 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, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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1 Answer

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The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the 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,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
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Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
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You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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1 Answer

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Buy the STK392-120 they are a better chip. Some people say go up to the STK392-150 but i had an issue trying that with a panasonic it keep burning resistors as fast as I could change went back down to a STK392-120 and worked great.

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