I have a Mitsubishi tv model wd-73740 that has been setting for a couples of years in storage and we plugged it in and it wont come on?

SOURCE: TV Shuts down

convergence amp IC's i would start with.

SOURCE: Mitsubishi WD-62628 power shuts off!

I have the same issue have not done the repair yet but here is a link to photos of the various boards and the problem caps:

http://www.fixya.com/support/t155026-
flickering_blue_picture

SOURCE: Tv cuts off and green light flashes

If your set was manufactured around July 2005, you may need a firmware upgrade to solve this issue. On the Sony website you can enter your model # and serial # to see if you TV is affected. If so, it is easy to have done and may be free from Sony. It sounds like the issue they described in the writeup on the required formware update. I had mine done within few months of when i bought it (purchased in Dec 2005) and it has been working flawlessly since.

Good luck!

Donnieboy999

SOURCE: mitsubishi DLP overheating

Mitsubishi has problems with the thermal sensor going bad. They extended the warranty for several sets. The sensor is right by the lamp. Call mitsubishi and insist they do something for you. If you keep playing your set, the bulb could also be at risk. I would think your set is covered being a 62" set. Good-luck and be sure to act ASAP.

SOURCE: When turned on, my Mitsubishi TV shuts off after a few seconds.

the lamp is simple; yet you can run into problems with this tv. be very careful replacing lamp. the plug in the tv can be damaged. (due to the design)
lamp part #

915P028010