Question about Sharp 55R-WP4H 55" Rear Projection Television
I had the blinking view timer issue, my Sharp would turn off after 20 minutes of view time. I replaced both convergence ICs, and the TV is staying on (I left it on over 3 hours as a test). However, I'm not able to adjust the convergence - the red is way off. Would this still be a Convergence IC problem, or does sound more like an issue with a resistor somewhere?
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
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 herehttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
Posted on Apr 18, 2010
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Posted on Jan 02, 2017
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