I have a Mitsubishi WD-62530 DLP. TV works great other then about a month ago I started to see a blue wave on the bottom of the screen and now the picture has a green/yellow tint to it that I can not fix with my settings. I had a guy come out and said it was the light engine but I really don't think he knows what he was talking about. Please advise

SOURCE: mitsubishi wd-62825 dlp

The WD62825 has a Digital Module located on the left side of the chassis looking at it from the rear of the set. It's housed in a metal box that can slide out of its holder after removing the trim screws.
The module has its own power supply board and there are a group of 16v/1000uf caps on that board which commonly fail causing the constant flashing standby light. Further back on the module is a small board about the size of a matchbook called the E2P module. Its SMT (Surface Mount Technology) caps also commonly fail which can cause the same symptoms. Techs can tell whether the E2P has failed by simply removing it, hooking the DM back up and trying to power the set. If it powers on the picture won't be much good - but at least you can tell what's keeping it down...
Back to the caps on the pwr board. If they've failed they usually will buldge visibly on top. And ESR is almost not necessary. In any event that's the nuts and bolts on this model.
Is it a job for a layman? Yes and no - you might strongly consider a tech if you don't feel comfortable removing all the connections that the DM has with the signal board. There are about six - multi-pin - wired connections to unplug and then sliding the DM out of the unit and carefully removing the screws and latching to take the DM top cover off...
Hope this helps.
Bill

SOURCE: Mitsubishi WD-52525 52-inch DLP HDTV ywllow warning lamp light

that means your lamp it is getting to the end of its life.
sometimes even if the lamp still good the TV will send you that message because that timer is closed to 5000 hours

What you can do is open the lamp door, closed again and the tv will ask you if you replaced it the lamp, and just say yes and that sign will go away

or just simple replace the lamp. 915P020010

SOURCE: Can you please explain how

http://www.youtube.com/results?search_type=&search_query=915P043010&aq=f

Hope this helps like it helped me.

SOURCE: WD-62530-I've recently replaced my WD-62530 for a

bad optical block

SOURCE: I have a Mitsubishi Tv wd 62530 and the lamp light

YOU NEED TO REPLACE THE LAMP THE OWNERS MANUAL GIVES YOU DIRECTIONS ON HOW TO DO THIS.