Question about JVC AV-48WP74 48" Rear Projection HDTV-Ready Television

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Jvc floor model Tv

My tv has a orangish shadow. It just appeared out of the blue when I cut on the tv this morning. I tried the convergence but it seemed to make it worst. I played a dvd and there was no change. someone told me I may need a new color tube. What do you think? How much is the repair?

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I have a 54inch jvc floor model with no sound and it will show a picture then the picture goes out and power button flashes red, can this problem be fixed

Posted on Jul 19, 2011

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I own a jvc HD-Z70RF7... My problem is a shadow that is now covering most of the screenfrom inside the tv ...how do we fix this problem


Im not familiar with that exact model but it sounds like your convergence chips have gone out. You can google tv repair kits or convergence chips to find DIY parts

Mar 28, 2012 | JVC Projection Televisions

1 Answer

Hello, I have a 2005 Sony KP-51WS520 Rear Projection TV. Recently, the green colors all become a yellowish/orangish color. When you are watching a baseball game the grass is a orangish color. ...


DLP tvs have a design weakness,the problems it is call a convergence problems,it is dead.This convergence problems,will have happen many times through out the tv live.The tv have a colors R,G,B lines misalignments,have colors shadow pictures or 3D pictures look alike?Yes,than the tv board,that call the tv convergence board it is dead.The tv convergence board,must require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv colors picture convergencce problems.The tvs shops will cost u like $300-350 for parts and labors.

May 24, 2011 | Sony KP-51WS520 51" Rear Projection...

1 Answer

Convergence is out...trying to manually adjust but only have blue and green lines....no red...how can i fix this?


Tv have 100% convergence problems,it dead.The tv have colors lines R,G,B mis alignments,have colors pictures shadows 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,must be replaced to solved the tv pictures convergence problems.The shop,will cost u like $300-350 for parts and labors.

Nov 22, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

My jvc model # av-48wp30 tv has a blue shadow


Convergence needs repair. The AV48WP30 convergence repair kit from www.tvrepairworld.com has the parts and the CD with step by step repair instructions.

Aug 08, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Mitsubishi RPTV has a blue shadow/image alignment problem


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 projeciton 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 will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

May 23, 2010 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Picture now has alot of yellow and blue shadowing


Ur tv have convergence problems,it dead.Require 2 STK convergence ICS and some or all it resistors replaced on the convergence board.The shop will cost u $300-350 for parts and labors.

May 14, 2010 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Blue and Yellow Shadows


Ur convergence are dead.Must know how to solders?Have solder iron,solders,solder wicks?Must replace 2 STK convergence IC,and some or all it resistors.Tries websites to buy a convergence kit at Tv repair Wolrd.com,Tvrepairkits.com to repair it ur sself.The shop will cost $300 for parts and labors.

Mar 29, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Replaced Convergence Board...then...Blue shawdow appears


Maybe the new board was bad, or the B+ that feeds the convergence board is bad., This is where experience comes to play I'm afraid. Good Luck.

Aug 28, 2007 | JVC AV-56WP74 56" Rear Projection...

2 Answers

JVC AV-56WP74 Problem


Yes, one of your convergence IC's have gone bad. They are located on the convergence board inside the tv and there are two of them. They are inexpensive and easy to replace if you know how to solder. Watch out for the JVC booby trap sensor on the dvi input card. Don't run the tv with the back panel off unless you have disconnected the DVI card from the main board. I would even cover the little sensor with black electrical tape. Then it is safe to work on the tv when it's open and on. Well safe for those who know what they are doing.

Jul 29, 2007 | JVC AV-56WP74 56" Rear Projection...

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