I have a 2001 55 inch Mitz projection tv. I havent had any problems with it until this past weekend. When you try to turn on the power to the tv, the green light will come on for about a second then it will turn off. The power will not stay on. What do you thinkt he problem is, and how much does it cost to repair the problem?
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look for dried out thermal paste on the transistors / i.c.'s especially on the power supply board. test while the set is on, carefully! using coolant spray (freon) and, a hairdryer to find heat related faults keep turning the set on and, off to replicate the problem as you heat and cool components until you find the offending component. the coolant is non-conductive and, will not harm anything it touches except you. wear safety glasses and, keep your hands out of the way of the spray nozzle. remove old non-conducting paste if a component gets too hot and, re-apply the paste. radio shack sells the coolant spray (component cooler) and, the paste.
sounds like u are losing green? is that right. could be loose connections somewhere because it works at start up then fails when it heats up. Look in the yellow pages for a mitz auth servicer or call mitsubishi for one near u.