Question about Mitsubishi WS-55909 55" Rear Projection Television
Picture was fine, then lines skewed diagonally, then became light green background with red and blue lines bowed about 1 inch apart. The set turns on but will shut down about 30 seconds later and have tried rest several time.
The Blue lamp is no longer projecting. Is this as simple as a lamp replacement? Can I check the resitance through the lamp to be sure that is an issue? The set is 7 years old with but has less then 4000 hours on it so I really do not want to replace it yet.
Projection sets have two very common problems outlined below.
The first common problem is 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. The TV can also shut down when the convergence starts to fail.
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, RCA and others.
You can more info and a DIY convergenece repair kit with instructions from TV Repair Kits using the link at the end of this article.
Here are some of the most common problems with these sets...
*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped or bowed
*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
Posted on Jun 06, 2010
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