Originally Posted by Brent Mason
TV has worked good other than having to change lamp a couple times . The lamp popped a few days ago so I ordered a new one . Other than being a little dark the TV worked ok before replacing the lamp . While waiting for the new lamp I decided to clean the light engine mirrors etc. . I am 99.9% sure everything was reassembled correctly and after seeing the problem I double checked . The problem is when I turned the set on after replacing everything the picture is very very RED . Can anyone tell me if I did something wrong ? The screen also stays completely red after turning off for about 20 seconds . See on youtube http://www.youtube.com/watch?v=zBSVDQeQMsI&feature=youtu.be
Yep, a 3-LCD Mitsubishi. This has nothing to do with the lamp.
1. First possibility, you did something wrong in reassembling the LE, specifically with respect to the red path. If you didn't get the ribbon cable for the red path LCD panel seated correctly, the red will be on full blast. The natural unpowered state of a 3-LCD panel will transmit all the light, and that could be what is happening to the LCD panel in the red path. As you probably noticed at the time, it's hard to tell when the ribbon cable is in all the way. I always make a line on them with a sharpie before unplugging them, so when I reassemble them I know how far to plug in the ribbon.
2. Second possibility, if you actually removed the dichroic mirrors that break up the white light into R, G, and B, you could have put them back into the wrong places or backwards. Check by shining a flashlight into the light engine and seeing if you get R, G, and B in the right places.
3. Third possibility, you missed a cable connection to the light engine driver board. I don't remember how this is cabled, but generally you don't have separate cables for R, G, and B, just one big VGA-style cable, so I don't see this as a likely possibility.