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My Panasonic TU-PT700U Digital media Receiver shuts the TV down after 10-30 minutes and the blue light flashes 5 times repeatedly. I have to unplug the unit and let it cool for several hours before it it run the TV. Again, only for 10-30 minutes and then shuts it down again.

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Hi, I have a spare TU-PT700U that may be of use for you to solve your problem without having to replace your system.  My Panasonic onyx series monitor was stolen out of my house, but they left behind the TU-PT700U and cable.   If interested, respond to my craigslist post..
http://sfbay.craigslist.org/sby/ele/930283631.html


Posted on Nov 23, 2008

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Try first leaving the TV power cord unplugged for some times, let say one hour or so.

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2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


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