The first would be excessive dust causing inadequate airflow through the lamp cage. Cleaning the filter may resolve the problem.
It could also be that one, or both, of the temperature sensors could be defective. This is a known problem to the extent that Mitsubishi extended the warranty an extra two years on your model and similar models with the same design.
Mitsubishi Digital Electronics America, Inc (MDEA) 2006 DLP® Projection Televisions Models: WD-52631, WD-57731, WD-65731, WD-Y57, WD-Y65, WD-57732, WD- 65732, WD-57831, WD-65831.
As part of our commitment to quality and customer satisfaction, MDEA is announcing an extension of the warranty coverage to replace the thermal sensor for the above referenced models. For a period of two additional years beyond the one year limited warranty, MDEA will cover the cost of the thermal sensor (parts and labor) at no charge. All other terms of the MDEA limited warranty will continue to apply.
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: Rear Projection TV shuts down after a few minutes.
My science teacher had the same problem.
After, he replaced the lamp it stoped over heating.
witch is most likelywhy the tv is over heating
SOURCE: tv shuts off, red status indicator lamp flashes.
Your main boards are bad. The FMT, DM, & Power Supply. They are no longer available, You have to
have the chasis rebuilt. Mitsubishi is rebuilding these chasis. You
have to pull it without any cut wires & ship to Georgia.
tvdoctor
SOURCE: WD 52525
This is a sign of a failing capacitor set on the power board. there may have been a small or minimal pulse that went threw the set during the power outage and when the power was restored. this could also be overheating as well due to dust forming on the power boards components. i would remove the back cover and clean as much dust off the power board as possible with some sort of canned air if possible. make sure the cooling system is working properly as well.
please rate and god bless.
SOURCE: My Mitsubishi DLP TV has a 7 month old bulb, but
take the bulb out and clean the dust on and around the fan. Doing this every 3 to 4 months will extend the bulb life. The little red lamp light that is coming on is an indicator that the bulb needs replaced. Make sure you DO NOT touch the bulb with your fingers. There is a button for reseting the bulb when you replace it. I have a 65 inch Mitsubishi DLP that the bulb just went out on. This worked for me...hope it works for you.
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