Question about Panasonic PT-47WX49 47" Rear Projection Television

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I have a blue screen with horizontal lines

I own a Panasonic PT-47WX49E. I have a blue screen with horizontal lines appearing. How do I fix this issue? Is it a convergence problem?

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  • mbrow468 Nov 13, 2009

    When I was researching this issue online I was led to believe this problem was due to the convergence. After talking to a tech with a parts company he said it may be the drive board at the base of the circuit on the bulb (or tube).

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I think that the cost of repair is more than a new flat screen tv ,sounds like the scan coil output has burnt out ,well it was called scan output in a valve tv of old .This fault would be caused by a picture valve or the high tension output for the scan coil.Ok iam showing my age yes?? but the problem is the same just the technical names have changed.

Posted on Nov 13, 2009

  • Colin Stickland
    Colin Stickland Nov 13, 2009

    As i stated i dont know how this type of thing operates compared with an old valve set,iam just a dinasaur because the technology has by-passed me and i havent kept up.but yes that circuit is driving the output for the picture so we can assume that the tech guy knows as well .Now the whats the cost of the part and the labour involved in changing it,is it viable to repair when the lcd tv have dropped in price and they digital terrestal tv tuners built in .They can run off of a computer so you download a torrent film and not have to bother burning to a dvd or memory stick .Just plug computer in and watch the film ,here in spain a 32inch is now about 300euros so before you repair think about it closely

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1 Answer

The color goes out on my panasonic PT-47WX49E TV.


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV 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.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • 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.
  • TV shuts off after powering on. The power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


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69189a5.pngSOLUTION #1

What you will need to do is convergence. You can get a repair kit from TvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.

Common 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.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

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

May 11, 2012 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

The Panasonic mod# pt-47wx49e has started to have a blue and a yellow shadow on the right side of the screen. the rest of the screen is normal. The operating instructions give you diddle to on. Do you have...


Ur tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis alignments,have colors shadows or 3D colors pictures.The tv convergencce board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved the tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.

Oct 10, 2010 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Panasonic PT-47WX49E blue convergence problem.


if convergence does not adjust in menu mode could be a defective convergenceic or fuse

Nov 11, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Red horizontal convergence PT-47WX49E


converge outputs getting tired or limiting resistors opening up. adjusting this incorrectly will make the situation worse keep in mind that overdriving these chips will cause a fold over of your image when you see this carefully adjust in the opisite direction as you may be overheating the outputs

Oct 08, 2008 | Panasonic PT-47WX49 47" Rear Projection...

3 Answers

Service manual for PT-47WX49E


i need the service manual as well, if possible (i'm just having a red horizontal convergence issue).

also, any advice on what to do would be swell!

my email is v6vywa002 [at] sneakemail [dot] com

thanks!!

Aug 17, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Green rainbow streak on bottom of TV PT-47Wx49E


If Convergence on setup dosen't work, And you think its not STK Convergence chips!, Then "Yes" It more then likely will have a few open Resistors!... (Near STK chips)

Jun 24, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Blue ghosting on Panasonic PT-47WX49E


your convergence IVs need to be replaced. Its an easy repair if you can solder. you can get the two ICs you need at the following link. they also provide free installation instructions and free on line tech support while youre doing the repair. You need two ICs they are numbers STK392-110. Let me know if I can be of further assistance. I am one of servicemanuals support techs and board rebuilder.
http://servicemanuals.vstore.ca/

Apr 11, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Panasoic PT-47WX49E


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 08, 2008 | Panasonic PT-47WX49 47" Rear Projection...

47 Answers

PT-47WX49E Service Manuals


scott iam in need of one too would you PLEASE add me to your list Thanks so much

Apr 11, 2007 | Panasonic PT-47WX49 47" Rear Projection...

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