Two thoughts:First is this is a DLP set and the lamp may have failedSecond is it should have the self check which reads error codes---most of these sets that is the same:" After you turn on the set, and get the regular red blinky lights, hold down the Device and Menu buttons together for about 5 seconds.(then release both) The Power light will start to
flash in a two digit sequence. For example, 3 flashes, then 7 flashes = 37. Here are the error codes, and the corresponding problem: 12 = No error detected, check power supply. 32 = Lamp Cover is open. 33 =
Air filter cover is open. 34 = Lamp abnormality 36 = Light Engine (DMD or Lamp Fan stopped) 37 = Exhaust or Lamp Ballast Fan stopped 38 = Lamp Temperature High 39 = DMD Temperature High 41 = Short is detected 44 =
DVI cable between FMT and Engine disconnectedThis is for a earlier Mitsubishi DLP but should be the same as your set as Mitsubishi rarely changes things like this.If you get the lamp abnormal it is likely your problem.