Question about Mitsubishi WD-52525 52" Rear Projection HDTV
I have a 2 year old Mitsubishi WD-73732 - 1080p 73" Medallion Series DLP HDTV - WD73732. When the TV gets warm (within 15-30 minutes) the color gets increasingly distorted and "posterized"...blotches of color, mostly magentas and greens. I replaced the lamp a year ago, but didn't replace the lamp CARTRIDGE, just unscrewed/replaced the bulb itself. The bulb is plenty bright, just the color gets bad. Can you tell me what to do?
This would be the little sensor on the light wheel. Its cheap, you can get them online for around $2. You will need to take the light engine out and remove the color wheel cover and remove the color wheel and then remove the sensor. You will have to desolder the sensor and remove it to replace with the new one.
What is happening is the sensor is overheating and not tracking the color wheel properly there for the colors get messed up. Once you replace the sensor the tv should work like normal. The part is
(Sharp GP2S40 Photointerrupter). It is very difficult to find because they are not made anymore. Most major online part stores do not carry them but I found a lot of them at Wright Hobbies. Good luck.
Posted on Dec 24, 2012
You need to replace the "light engine". This is very very difficult. You need to take it to a repair shop. But this will be very expensive. Around $1,000.00
Posted on Nov 20, 2008
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