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My television is a JVC model no .AV-56WP74 .The picture looks overlapped with red and light blue colors.What can be wrong with it?

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Hi,
This kind of problem appears due to convergence output circuit failure in this tv and two convergence output ICs need to be replaced to solve the problem.
If you are handy with electronics stuff repair and can solder parts in circuit board with proper tools then can attempt to replace these ICs OR local tv repairman will do this job to avoid any further damage in tv.
Hope this will help, let me know if there is additional question.
Thanks.

Posted on May 20, 2011

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Someone offered me a jvc hdtv av-56wp74,and one person said just the bulb in the lamp has to be replaced;then when called jvc they said i had to by colored tubes for 300.00 each,,,,who do i believe


The tubes rarely fail in this model so it may be a convergence issue instead. 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.

Here is an example video


Feb 14, 2012 | JVC AV-56WP74 56" 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 tv is a jvc av-56wp74 it looks like 3Dwithout the glasses the colors dont line up


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

Apr 04, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

The blue is not lined up with the rest of the picture


This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 18, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

HOW DOES THE FLYBACK AND FUSE LOOK ON THE AV-56WP74


Hi

the flyback is a high voltage step up transformer that light up the CRT tube. usually this is color black or sometimes Grey with have anode wire attach in the picture tube. the fuse are so many types of fuse,. but in this model the fuse is like crystalin glass tube with metal at both ends..

Thanks!

Jul 08, 2009 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Blue lines


Hi, convergence amps have failed, your going to need a tech for that repair, involves un--soldering and re-installing parts as well as an alignment, hope this helps, video-tek

Feb 11, 2009 | 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

Hardly any Blue Color in the picture. the blue tube is projecting darker and dimmer.


You need a Blue picture tube CRT you can get one for your JVC at the following link for a real decent price and they provide free shipping. Heres the link.
http://servicemanuals.vstore.ca/

Jun 07, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Double vision On JVC AV-56WP74 56


You have an convergence problem, There are 2 IC's that go bad and a few resisters that can change value. If you flip the board with the Chips inspect the pins for cold solder joints. The IC's can be purchased from matelectronics

Jun 17, 2007 | JVC AV-56WP74 56" Rear Projection...

2 Answers

Red, Blue And green put of alignment- see double on screen all 3 colors off


Your convergence amps are bad. Replacement is necessary and I would recommend contacting a servicer in your area. You can find an authorized JVC serivcer at this link http://maps.jvc.com/cAscList/

Jun 06, 2007 | JVC AV-56WP74 56" Rear Projection...

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