Question about Panasonic PT-47WX51 47" Rear Projection Television

1 Answer

Convergence Issue 1080i

I have a Panasonic PT47WX51CE HDTV and am having problems with convergence.  I have not had convergence issues with the unit until today.  When I turned the TV on, the screen initially looks to have been pincushioned in, meaning the center looked relatively aligned, but the edges were stretched out with varying levels for RGB.
Further troubleshooting revealed the problem only manifests when I have a 1080i source hooked up.  In this case the problem occurs both with a PS3 and my cable box (note SD channels work fine, but HD do not - similarly the PS3 works fine for 420p but not 1080i).

I bought the service manual and am following the fine convergence steps but am finding it difficult to get everything aligned (I am sure this is just time and patience on my part).  One thing that I did notice was that when I enter the service menu and select my 1080i source, it has highlighted in red 1080i and 4:3 mode format.

It's my understanding that 4:3 mode doesn't really exist for 1080i.  The model TV I have should be running in 16:9 with 1080i.  Can anybody offer insight into some of the problems I'm having?


Posted by on

  • Andrew Feb 11, 2012

    I have a question, when in service mode I cant figure out how to switch from a selected (or highlighted) 420i to the next option (420p and 1080i) If would be fantastic if you would tell me how



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 10,515 Answers

Get a new repair guy. Actually, the TV is working fine, it just needs
convergence aligned for the 1080i mode. You need to find someone who knows
how to do it properly and if this guy didn't know that you have to align CRT
based sets specifically for all scan modes, he is not the "repair guy" that
you want to be using.

It wld cost you around $400 to rectify this.


Posted on Nov 23, 2008

  • taran_2005
    taran_2005 Nov 23, 2008

    There are some circuits that align the RED, GREEN, and, BLUE, picture tubes to make the picture you see.
    **Please understand that by opening a TV you are exposing youself to many dangers, including electrocution. Be sure that the set is un-plugged and keep one hand behind your back whenever possible to avoid a shock through the heart as this CAN KILL YOU. If you have zero electronic experience I would not attemp this repair.**
    OK, public service announcement over.

    The components that do that job are called "convergence" circuitry. The usual components to fail are the "Convergence Amplifiers" which are usuall a pair of Integrated Circuits mounted to a large heatsink. (STK-392) may be printed on the IC along with some number such as 110, 160, 120.

    Also look for burnt resistors around these components, as it is common.If the problem is isolated to only one color the replacing those STK amps and any burnt resistors will fix it. If all the colors are out of whack (Red, green, and blue, like a 3d effect all over) then you are likely looking at a fuse gone bad in the voltage supply to those amplifiers. Usually Sony or Mitsubishi have these fuses. The fuses (called "pico-fuses") are generally orange, or green, with no color stripes like resistors have.

    You can look up these parts online easily with the exception of the burnt resistors and fuses which you usually need a manual(which you can also purchase online). The STK's price will vary from $15-$90 depending on which one, and the resistors have to be of the metal oxide type so as not to change value with heat.

    One place to get parts is you will need your model #.

    To get a service manual try

    It is an intermediate DIY, you should have a good understanding of electronics and soldering abilities.

    If you want a professional to repair it, be prepared to part with around $300-$400.

    Hope that helps!


    If you feel my answer was satisfactory please click on the "Fixya" Icon. That is the only way I get paid for my advice.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have a panasonic hdtv 1080i. At the bottom of the screen there is a blue curve. Can I fix this?

Sounds like a convergence issue. Check the site to see if they have the parts for your TV.

May 07, 2011 | Televison & Video

1 Answer

Panasonic 1080i 3 blinking lights. Removed the

3 blinks is indicating that the convergence has shut the set down. The PT53WX53 convergence repair kit from works for your model and should solve the 3 blink issue.

Mar 06, 2011 | Panasonic PT-56WX53 53" Rear Projection...

2 Answers

I have a Panasonic HDTV 1080i Cinemavision that has blue and yellow shadows in the picture is there anything I can do on my own to fix it?

The tv have a problems known as a convergence problems,it dead.The tv convergence board,require replacing 2 STK convergence ICS and some or all it resistors.Yes.U have a soldering iron,desoldering pump or desoldering braids,solders and u can do basic soldering?Yes.Tries websites like, to buy a convergence kit to repair it ur self.The shop,will cost u like $300-350 for parts and labors.

Oct 27, 2010 | Panasonic Televison & Video

1 Answer

We have a PT-47WX51CE panasonic cinemavision hdtv 1080i and the colour is off. We see separated mainly green and magenta and the picture is warped with some lines.

All that mess in picture is due to failure of convergence output chips in this tv.
Replace convergence output ICs (two ICs) to solve picture problem. Required ICs are available in Part Store, click the link to have price info.

Jun 25, 2010 | Panasonic PT-47WX51 47" Rear Projection...

1 Answer

Convergence panasonic HDTV 1080i bbe hi definition

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,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

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

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*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

You can see some more examples and find a fix herebb0cf99.png

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

1 Answer

Arch in color on Panasonic

hello sound like convergance chips also check resistors and capacitors hope you get it fixed


Jul 31, 2009 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Replaced convergence chips, have new problem

Did you check the 2.2 ohm 2watt resistors? As often one or two will blow when the old ICs fail. The 3 blink error is indicating a problem with the convergence circuit still.

Jun 19, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Panasonic hdtv projection colors will not line up

If only minor convergence issues, the setup menu has user controls for 9-point convergence. If it's major misalignment in just one color, you may have a blown convergence amplifier chip. Big bucks repair, unfortunately. Chipsare about 30-40 dollars apiece but labor will kill you if they'll even fix it on-site. Most try to order $700+ board which is no longer available. Teh they send yours out for -10 weeks at similar prices.

Jun 04, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

I have a panasonic HDTV 1080i. seeing double images

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.

Feb 17, 2009 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

Blue lines appeared near lower half of screen

Hello... This sounds like a convergence issue, but I didn't think they made rear-projection TVs as recently as 2013? Also, your post says you have a 32"? If it's a 32", then ignore the following.

If it is a convergence issue, parts will need to be replaced. There are usually two STK ICs and maybe some resistors that can go bad.

I hope this helps!

Nov 24, 2017 | Panasonic CT-32HX41 32" TV

Not finding what you are looking for?
Panasonic PT-47WX51 47" Rear Projection Television Logo

Related Topics:

94 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Televison & Video Experts


Level 3 Expert

5515 Answers


Level 3 Expert

508 Answers

The Knight
The Knight

Level 3 Expert

75774 Answers

Are you a Panasonic Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides