I have the same problem. Mine started acting in this way back in May of 07. I sent it to the company for repair. When I got it back, it came on once, After that, it would not come on again. Back to the company! After six months, I finally received the TV back. It worked for about two months. Yesterday it failed again.I see the service port in the back, but the connector doesn't look like a USB connector. I guess I need to get a power supply.
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