Will be watching tv and it goes black..red light flshes on front(power)

The device sources and the inputs have not been set to the correct mod.There could be a problem with the TV it's self for it to be turning off like a problem with the power supply for the TV.

did you hear the sounds? or maybe you have defective power source in hot side..

I have one of those right here attached to my computer so I can watch TV on the PC. The red-green light is the power indicator. Your converter is turning off for some reason. Possibly it is getting a signal from another remote, and turning off. You can block the converter's remote sensor with something (black tape works) and then change the channels with front panel buttons if it has them.
Mine has power buttons for both the TV and the converter, so watch out for that.

time to take it in for a proper diasgnosis and then to decide if to fix or not

Replace the medieval TV.

that is power supply issue try to check if there is bulged capacitors on power board then replace it.

My P2770 HD goes on, watching TV, then turns to black screen. The red LED light is on but not blinking, and the screen can be viewed under fluorescent lighting, but only at about 5% of normal. Should I assume the power inverter board has gone bad?

hi,
watch how many times ur standby indicator flashes. flashing of led is its self diagnosing system. if u tell me how many times its flashes, then i can tell u where is the problem
ok

power in the tv has nothing related with the DVD. The tv has to have raster (white screen) even without signal (cable, DVD, others) if the tv alone is just having the led flashing and neither sound nor video (black screen) The tv has a short circuit in some of the boards that are part of the tv system. the blinking is part of a protection when the tv was created in the factory. Refer to the technician to repair this problem.

I have a panasonic TH-42PX60U plasma TV. When I watch TV programing I have no problems, or with the DVD input. But if I switch to another input, be it video game (PS2) or vcr the screen sometimes goes black and the red power lcd light next to the power switch flashes. Holding the power button in for a few seconds will shut down the tv. Then I can turn it back on and it may operate normally again for a undetermined period of time, before the screen goes black again. This never happened when new. The tv is about 1 year old. Any ideas on this problem? Thanks Ernie