My Mitsubishi Diamond 55 inch tv just went black and then the red power light blinked, when I went to manually turn it back on, it did not come on at all...is it able to be reset or fixed?

A blinking red light on the power button of a Hisense 55 inch model 50R6E3 TV could indicate a problem with the TV's power supply. It could be caused by a malfunctioning component, such as a blown fuse or failed capacitor, or it could be an indication that the TV is overheating. In some cases, a blinking red light can also indicate that the TV's firmware is not up to date and needs to be updated

I had the same problem with my 55 inch Samsung TV (blinking red standby light and a clicking sound when the TV was turned on, TV would not come on). After checking components on the power supply board I found that the five 33 ohm (orange-orange-black) resistors and changed value. Each resistor measured approximately 3.6 ohms.
I replaced all five resistors. Now the TV works.

have a 55 inch Mitsubishi TV.. the green power light keeps blinking.. is there anything I can do myself?.. or I have to have someone to get it fix?

the regular problem is the convergence kit,

You will find 4 swollen capacitors in the DM module of value 1000uF 16volt. Replace them.

The DM module is not booting up because some capacitors inside it have dried up. A common problem with that generation Mitsubishi. The repair can be done in the home and most shops charge around $250 to $300 for the repair.

i went to turn on the tv and the power button don't work

its the circut board that leads into tv from power cord , i had bought mitsubishi65819 black diamond gray 65inch for $54 ,is under the warranty the board cost $350 , labor $200 but this depends on where u live ,either way it was a steal for me ,but yea i had same problem when u turn tv on it shuts down like not even 2seconds i had tech come out and he had to take the board to get it repaired ,its not available he said but its repairable , was a sears tech so sears can repair it

Sounds like your control unit has going down. its the big silver box in the rear to the left of the set.

This problem very well could be a DM board problem. I have a how to fix file if this is indeed your sets problem. Leave your email and I will send it to you. Good Luck