Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

1 Answer

Convergence problem Red convergence is concaved from left to right reset convergence and then did manual and cannot fix

Posted by on

  • 1 more comment 
  • Anonymous Mar 16, 2008

    have red and blue lines around features and out of focus. Have done auto convergence and won't work. Tried manual and can't line up vertically, just horizontally. TV is not that old.

  • sebster May 04, 2008

    TV's COnvergence is off. Tried auto and manual convergende, but it still won't line up. Please help.

  • essam2000 May 12, 2008

    convergence problem with red colour, i try to adj. the red Lance but the problem still

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,694 Answers

Replace convergence IC's with upgrade STK394-160E Mfr is
Sanyo.................................T.

Posted on Mar 23, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Image on screen looks concave(middle of screen looks farther away than left or right side.)


Roseannmace,
Your TV is out of convergance. You'll probably noticed that there are red, green, and blue images. You'll need to determine if the problem is in the power supply or the convergance board. Usually, the convergance amps go bad and opens resistors. Do you know how to read a schematic and use a multimeter? You will also need to know how to remove the old parts and solder the new parts into the circuit board.

Ken.

May 27, 2010 | Toshiba 43HX70 43" Rear Projection...

1 Answer

My Sony Projection TV middle of the screen curves down on top and curves up on bottom. Picture looks dubble like 3D, screen looks like concaved. Left side of the screen color is light green and blue, right...


This is a very common failure on Projection sets. Its called a convergence problem.
You may have one or more of the following symptoms.
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.
No Audio / No Video - Makes Chirping Sounds
You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Sep 26, 2009 | Sony KP-51WS510 51" Rear Projection...

1 Answer

Red color in left bottom of screen and left side has 3d look. letters on guide in this area are concaved also


try to do a convergence adjustment. If that doesnt work the convergence power supply board is the usual culprit, if the convergence option hasnt disapeared from the menu.

Jun 15, 2009 | RCA D61W20 61" Rear Projection Television

1 Answer

Concave tv screen colors distorted just had tv repaired one year ago for same 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.

Convergence problems are very common on all Projection TV sets including Sony, Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit from the link below.

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 - TV may also make a chirping noise.
Here are some photos of convergence problems.

49abec3.jpg
f0add3d.jpg


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.

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 solution

93a1209.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 know what you are doing. If you have never done this before we would advise calling a shop or if you want to do it yourself get a complete kit with instructions and support from www.TvRepairKits.com

May 29, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Concaved screen image, no response on vertical blue converge


I've read some similar problems that tend to indicate that it is a convergence chip problem, so i ordered a convergence kit. I will update you as soon as I get it fixed. Thanks

Mar 22, 2009 | Philips Projection Televisions

1 Answer

Red Convergence Bowing




You have a convergence problem. Here are some of the most common symptoms.
 
Screen looks 3D
One or more colors can't be adjusted when using the convergence menu. 
Screen is bowed in but stationary.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem. 

>>>Solution<<<< 

You need to replace the convergence chips and convergence resistors. 

Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself. 

Jan 02, 2009 | Sony KP-57WS510 57" Rear Projection HDTV

2 Answers

Picture has 3 images, all different colors (red-blue-green) screen looks concave in the middle top & bottom


This is what is known as convergence..(very common)... first question DO you have the "CONVERGENcE" option in your setup menu?.... if you dont there may be a special fuse issue... if not then more than likely it is what is known as convergence power supply issue. you have complete loss of convergence?

Jun 01, 2008 | RCA D52W19 52" Rear Projection Television

1 Answer

Color distortion


There are failures occuring in the scann and convergence circuits. This may not be feasible to service.

Jerry G.

Dec 14, 2007 | Sony KP-43T90 43" Rear Projection...

1 Answer

Reverse fisheye!!


you are going to need to replace the convergence board assembly. It is available at http://www.samsungparts.com/part_detail.asp?catalog%5Fname=Parts+and+Accessories&product%5Fid=BP95%2D00142P&search%5Fmodel=HCN653W. Also get the service manual, as you will need to do some touchup convergence and reset the perfect focus setup again If you have the technical ability. If you do, great! If you do not, these service menu alighnments can mess up your set, so take no shortcuts. Good Luck

Mar 29, 2007 | Samsung HCN653W 65" Rear Projection...

Not finding what you are looking for?
JVC AV-56WP74 56" Rear Projection HDTV-Ready Television Logo

Related Topics:

61 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

68224 Answers

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

Answer questions

Manuals & User Guides

Loading...