TURNED SET ON, WITHIN A FEW SECONDS SHUT OFF, WILL NOT COME ON AND IT CLICKS, I'VE UNPLUGGED UNIT TO SEE IF IT WILL RESET ITSELF. THIS TV HAS BEEN RUNNING GREAT, WITH THE EXCEPTION OF A RED BLINKING LIGHT THAT COMES ON I UNPLUG THE SET AND GO THRU MENU TO TRY AND STOP THE TIMER ISSUE, CAN'T FIGURE IT OUT, BUT OTHER THAN THAT IT'S PERFECT, NO PROBLEMS, EXCEPT NOW IT WON'T COME ON, JUST CLICKS.
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It could be fixable but I have a concern. Where was the unit stored while it was unplugged? If moisture was able to penetrate the unit then you may have a really big problem. I recommend contacting a local repairman. You can find one through the Repair Service lookup on FixYa.com.
This is called the blinking green light of death-----only one of two things can cause this problem.
First: remove front speaker grill (IT PULLS OFF) AND remove inspection plate behind it; look for the two bundles of wires coming down and to the right from the front keyboard of the set.
Unplug both plugs you find (different and marked so you cannot mix them up-----the idea is to take the front keyboard out of circuit-----set will still function with remote as receiver is behind front screen)
Try (after 70 seconds) to turn on with remote
If it comes on---defective reset button on front keyboard----use set only with remote or remove and remove actual reset switch---it is located behind and part of frame for screen----entire front screen would have to be removed to get at it.
Second: if disconnection of the front keyboard does not help, the DM unit is bad.
As you look from back of set it is large metal box at extreme left side.
The blinking light is the unit trying to "Boot" up-----these have a problem where caps and a few other parts in that unit fail-----kits on the net are available----Mitsubishi no longer sells or services these units but PTS Electronics does repair them.
Let me know if you have questions and try disconnection of the front keyboard FIRST.
There is no reset button like in the old days. You can reset the microprocessor to it's default state by unplugging the set, let it stay unplugged for 10 or more minutes. Plug the set back and it will reset itself. You might lose stored channels and settings but they will all be reset to the manufacturers specs. This is true for anything that has a microprocessor (computer) in it.
Some of these sets if you unplug them---The green power light will blink for about 70 seconds before it stops--this is normal as the receiver unit in this set is booting up. Wait for the light to stop blinking and then the set should turn on. Some of these sets develop a problem where the light never stops blinking--usually the receiver is now bad--very expensive to get fixed.
I do this here for free so if this helps you give me a vote here.
There are many protective circuits inside the set that will shut it down if a problem is detected. It sounds like there are intermittant detections of problems and the "restart" temporarily clears the problem. If the unit is no longer under warranty, open up the back with the set unplugged and try reseating all of the boards and connectors. The trip may have jared a few things loose. Update this with the results.