Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television
I was given a Mitsubishi 70 inch tv and was told that the convergence moduals were bad. so i bought a kit and replaced them. had picture but it was fuzzy. I started the alignment of the lines like i was told and that didnt change the fuzzy picture too much. i took a break and went back to do it again and i turned the tv on and it was a green screen with the red and blue wavy lines going horizontal through it. any help will work
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
You 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
Posted on May 07, 2010
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Posted on Jan 02, 2017
This is "NOT" meant as "expert" advice...as this is not my area...HOWEVER...I see no one has answered this yet...AND I got some good help from here a year or so ago that worked for me!
When I had a similar "green screen" problem with my SONY projection tv...the guy helped me by having me make "MINOR" adjustments to the red/blue/green etc knobs behind the panel. These were three small black plastic pieces and needed less than a 1/16 of an inch adjustment...try adjusting one at a time and giving it few seconds after each adjustment. It worked for me..at least for a while (till my wife gave it away to a friend because it was "too big"...ah! women!!! LOL)...hope this helps. (NON-expert help!)
Posted on Jan 11, 2009
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