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

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What is the standard price of the convergence amplifiers and how many are needed for a 48 inch HDTV?

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If it is Panasonic PT47wx49 it uses two STK-392-110 CONVERGENCE chips--On Ebay select search, then advanced search and then search by seller---look for seller: sewsales55 You can buy both chips for about 12 dollars plus shipping(price for a pair with 6 month warranty)

If you need instructions on this repair let me know--pretty easy set to do this on--


REGARDS, SD TECH

Posted on Sep 28, 2009

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How do you fix the convergence on a 2003 42 inch big screen tv?


In the menu on the tv setup you should find a test pattern that can be displayed for converging. In that menu there may be an auto converge which is much easier. If not, with the patter up you will have to manually converge the individual guns in the tv with the back off. There are adjustment knobs or screws for focusing the guns.

Oct 05, 2012 | JVC AV-48WP74 48" Rear Projection...

1 Answer

My color are dropping down amd there is a doulbe images on the screen


try to adjust your convergence setting in your remote if still does not work replace your convergence ic the one with stk printed its usually 2 to 3 inches with 1 1/2 in height it has many pins and connected to a heat sink.

Oct 19, 2010 | JVC AV-48WP74 48" Rear Projection...

1 Answer

HDLP50W151 50 in. Rear Projection HDTV Television: have a 48 inch rca projection tv and the picture i...


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. Power light will blink. 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. And you should be able to get the grid straight.

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 flash 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 fix

69189a5.pngCONVERGENCE SOLUTION

You 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

May 17, 2010 | RCA HDLP50W151 50" Rear Projection HDTV

1 Answer

Jvc 48 inch tv and the picture looks 3d


Convergence ICs have failed. You can get the convergence repair kit for your model JVC at www.tvrepairworld.com the kit contains both ICs the associated resistors and the CD with detailed instructions.

Jan 03, 2010 | JVC AV-48WP74 48" Rear Projection...

1 Answer

Rcs hdtv multiple images


The problem you're having is due to the failure of the convergence amplifier circuit. In that circuit are some components which amplify or control the signals to the dynamic convergence yokes, which line up the red green and blue images to superimpose them over each other to create a proper colour picture. When you get a failure in that circuit, it no longer aligns the images properly, and generally you get what appears to be badly set geometry in multiple colours. In some cases you will also get a problem with the part of the power supply that supplies the convergence amplifiers, or the digicon, which is the digital convergence control module.

Jun 12, 2009 | Hitachi 43FDX01B TV

1 Answer

Double image


In all probability you need to have the convergence amplifiers replaced. A very common problem with all projection sets.

Jun 02, 2009 | JVC AV-48WP74 48" Rear Projection...

1 Answer

Convergence


Have someone replace the convergence amplifiers

Feb 28, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Green bent line on 48 inch jvc


Check for a burnt resistor on the convergence circuit board. This is usually what happens when the green gets distorted as the green is not adjustable only through the service menu so its either a burnt resistor or a leaky capacitor. Resistor is far more likely. Let me know if you need any further information.

Jan 24, 2008 | JVC AV-48WP74 48" Rear Projection...

1 Answer

JCV HD Convergence Problem.


Replace both convergence IC's......Please confirm Model #
off back of TV and I will help you step-by-step....Requires
above-average soldering skill......................T.

Nov 18, 2007 | JVC AV-48WP74 48" Rear Projection...

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