Question about Mitsubishi WS-55809 55" Rear Projection Television

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I have a Mitsubishi Medallion HDTV 1080 55 inch that when I push the device button to change the input, it locks up the whole tv and I have to reset the system just to turn it off. How do I fix this problem?

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You will most likely find, on the power supply board, a 5volt regulator that supplies the microprocessor. It is on a heatsink and is protruding perpendicular from the board on a heatsink. If you examine the copper side of the printed circuit board, there will be dry joints on the three pins making a bad connection. If you can, replace the regulator and your problems should be gone.
Hope this helps.

Posted on Nov 06, 2010

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Posted on Jan 02, 2017

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