Tip & How-To about Mitsubishi WD62627 62" HDTV
I found the solution to my problem and it has worked on two different Mitsubishi WD-62627 DLP rear projection HDTV's both with the same problem of the pictures going black and white after the sets had been on for about 20~30 minutes. I suspected that the color wheel might be the culprit. I removed the color wheels from both light engines and flushed out the back sides (where you can see the pulse coils in the back of the color wheel motor in the picture below) liberally with Ronsonal lighter fluid, which is basically naptha. I used lighter fluid for years in camera repair to flush out micromotors that would slow down or bind over time. The Ronsonol evaporates quickly and does not leave a harmful residue, however, I blew each one out with compressed air to make sure there was no liquid left. I then cleaned the glass on the color wheels, installed them back into the light engines, and installed the light engines back into the TV's. Both have been working fine for several weeks now. I do not claim this technique as a panacea but it has worked for me.
Posted by gregz33 on
May 21, 2012 | Mitsubishi Televison & Video
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