TV Repair Questions? Ask a TV Technician for Answers ASAP
Sorry to hear about your problem. I will be happy to help.
Do any lights blink after the Tv shuts down?
First thing you want to do is a user reset: Press and hold the POWER button on the control panel for ten seconds.
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The next step is to try a firmware update on the Tv. You must follow the directions very carefully: http://support.mitsubishi-tv.com/documents/LT-46151