Question about JVC Projection Televisions

1 Answer

I have a JVC AV-56WP74 that all of the sudden has a bow screen on top and bottom with green and purple tint with double picture. I have tried to fix the problem working with the convergence troubble shooting out of the menu but still with the same problem. What part do I need to replace to fix my problem?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • JVC Master
  • 8,617 Answers

You need to replace both convergence ICs they are STK392-110 you may want to get the resistor kit as your model will usually have a couple open resistors. You can get replacement ICs and resistors at the following link and they provide free instructions with pictures so you can easially do the repair your self.
Heres the link.
http://servicemanuals.vstore.ca/

Posted on Aug 13, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

The picture is showing multiple images with red, green and blue rainbow effect. The picture is also bowed on the top and bottom


This is whats called a convergence failure. You will need to call in a repair shop or goto sites like www.TvRepairKits.com hthat ave the parts to fix this yourself. Its a common failure on projection TV sets.

Aug 07, 2011 | JVC AV-56WP74 56" Rear Projection...

1 Answer

What would cause my jvc tv have a green tint


It sounds like you can have optical engine issue. That's if green tint was show up very gradually, until one day it really caught your attention.Normally some parts of the screen more green than other. It should get progressively worse. To solve this issue optical engine have to be replaced. It is pretty expensive repair if your TV is out of the warranty.
In case if tint appeared suddenly in one moment - you can try to check component cable connection on the back of your TV if you are using one ( green, blue and red colored). Sometimes it's loose or after disconnection people reconnecting it in wrong way.
Experienced tech will determine if optical engine is bad by running test patterns in special service mode. If green tint present on Grey scale - optical engine is bad.
Sorry for bad news.
Regards.
Russ.

Apr 06, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Double vision on tv with purple and green colors


Hello,

This television set, as well as most rear-projections, is prone to convergence driver problems. There are two large chips (STK392-110's) in the TV that need to be replaced, as well as some resistors that are likely damaged as well. Any competent TV repair shops should be able to repair this TV for 200-300 dollars. It is important to note that if the back of the TV is taken off without the proper prep., the Digital input (DVI) will be disabled permanently.

Hope this helps you...

Dec 30, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Cheap Fix?


I will strongly advise you to replace the two STK392-120 as a pair. and this will cure your bowing picture problem. You may need to re-converge your set. best of luck.

Nov 05, 2008 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Jvc 56wp74


sounds like a solder related issue on the convergence ICs. They are acessed through the front of the TV behind the speaker grille and then remove the small acess panel and you will see the convergence amp board with the two ICs on it.

Oct 26, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Green color convergence


make sure you hooked everything up properly and that all connections are tight

Aug 26, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

JVC AV-56WP74 56 in. Rear projection blurred image


Check that the 3 output plugs are in the right sockets (Red, Blue, Green) There is usually a felt pen colored mark on a white tape on the plug in wires. The Board sockets are marked Red, Green, Blue.

Easyab

Jun 20, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

RED AND GREEN DOUBLE AND BLUR PICTURE HELP PLEASE


You have a convergence problem. Components are shorted out and must be replaced. Unless you're a technician, there's really nothing you can do at this point.

C-Dog

Feb 03, 2008 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Screen is bowed (top and bottom) Color has a green and purple tint?


Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.
Here is an example video


utube.png You-Tube video "9oI1Nzq7CR8" placeholder (do not delete) utube.png

Jan 15, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

JVC AV-48WP74 48 in.


The convergence circuit needs repaired. I did the same job yesterday on this model. I not only replaced the convergence ICs, but, I had to replace a couple of resistors and a coil. The convergence alignment was minor after that.

Jan 22, 2007 | JVC AV-48WP30 48" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

99 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Projection Televisions Experts

easy alberta
easy alberta

Level 2 Expert

132 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

The Knight
The Knight

Level 3 Expert

68206 Answers

Are you a JVC Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...