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Hello, Sorry you're having problems. Offhand this is caused when an internal component shorts (an IC regulator, capacitor, or dozens of other possible components). The 10 blink code is a general "fault" code indicating the TV cannot power up due to a fault internally. Unfortunately 10 blinks does not point directly to one specific fault. It could be caused by the power board, the mainboard, or possibly even the sustain board (which produce the plasma image on the screen).
However it's worth it to try a hard reset, as sometimes the processor in the TV can simply have locked up.
The first thing you would try, is disconnect the set from power, then press and hold the power button on the TV itself (not the remote), for 10 seconds and release. Then plug the set back in, and also check that the power cord is connected tight at the TV as well. Press power once, and see if the set powers up normally. Try this procedure up to 2 times, and please let me know what happens.