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

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JVC AV-48WP74 only has green color

The screen is only green. Other colors are missing.

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Have a shop look at it. you cant fix it at home. really.

Posted on Feb 24, 2008

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I have a JVC AV-48WP74 48 in. Rear Projection


Must know basic soldering and have tools like soldering iron,a desoldering pump or desoldering witchs to replaced parts on the tv convergencce board.U have none of these tools devices and never solder bsfore,better hire the tv tech. to do the job.Cost estimate 300-350 for parts and labors.Tries wesite like Tvrepairworld.com,Tvrepairkits.com to buy a whole convergence kit,to do it ur self,if u can?

Jul 25, 2010 | JVC AV-48WP74 48" Rear Projection...

1 Answer

Jvc av-48wp74 48 in widescreen green projector problem


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


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 more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*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

bb0cf99.pngYou 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

Jul 27, 2009 | JVC AV-48WP74 48" Rear Projection...

1 Answer

Jvc AV-48WP74 i no its a convergen issue but..


you can get the convergence repair kit at the following link which usually fixes that issue. The kit contains the parts and detailed instructions on CD of how to do the repair.
http://www.tvrepairkits.net/

Jul 07, 2009 | JVC AV-48WP74 48" Rear Projection...

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

Jvc av-48wp74 48 in.rear


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 18, 2008 | JVC AV-48WP74 48" Rear Projection...

1 Answer

I have the JVC AV-48wp74


ok! you have defctive convergence correction circuit! thats why the color is abnormally function!

Oct 21, 2007 | JVC AV-48WP74 48" Rear Projection...

1 Answer

JVC 48WP74 HDTC rear projection


While it is true JVC tubes rarely fail, they can give trouble.
Another possible solution is bad screen / focus block......
Remove lower front grill panel and access board...Check for
smooth adjustment of RGB screen and focus.....let me know....T..

Sep 28, 2007 | JVC AV-48WP74 48" Rear Projection...

1 Answer

JVC AV-48wp74 Red, Blue, Green


no you did the right move but now you align the new pc board ,try to get the service in to enter the convergence alignment section,on most jvc;s it sleep timer ,disply&video status to enter try it but if your not sure of that you can perform the alignment ask a tech to do it. on the remote certain keys do special functions and you need to know what they do or you might make it worse.

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

3 Answers

JVC MODEL # AV-48WP74 48 IN. BIGSCREEN TV.


I had a problem with my TV colors not lining up. One day I turned it on and the green was out of wack. I checked this message board and replaced the STK chips, bad soldering and all led to me just giving up on that and buying a whole new Convergence Board ($185). I just plugged this in and though now my Green lines up okay, my red is out of whack. Is there something I am doing wrong? Can anyone help me? Did i miss a step? Frustrated......Bruce

Jul 29, 2007 | JVC AV-48WP74 48" Rear Projection...

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