I own a mitsubishi wd-73640 and recently it failed to turn on. I noticed there was a light that blinked repeatedly. How can I fix my tv?

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 62" dlp wd-62525

The lamp is either defective, not connected properly to the wiring or plugs (careful alignment required on the two connections), wrong type bulb, or the front panel is not replaced properly to trigger the panel sense switch (lower right side of panel)

SOURCE: Mitsu WD-62725 green light blinking continuously.

pls check remote aur repair smps power supply of tv

SOURCE: Mitsubishi Model WD-52725 timer green light blinking fast

My Mitsubishi WD52725 will not turn on...the timer light is blinking. We pushed the reset button, unplugged tv. Just got off the phone with Mitsubishi customer "service." After answering numerous personal questions, and being on hold for several minutes, I was told that the only solution was to push the reset button. Duh! We'd done that several times with no change, which is why I called them! BIG WASTE OF TIME!!!!

SOURCE: wd-65737 screen comes on with mitsubishi logo then shuts off ,red light blinking

Here is a suggestion that has worked for several people:

http://www.fixya.com/support/t12296849-turns_off_shortly_after_turn?mt_f=viewFull162