My NEC PlasmaSync did the same thing. It's caused by not using a power filter on your AC input. To reset your TV, turn off the power button on the bottom until no lights are flashing. Then hold down the "Input Select" button while holding down the "power" button. The tv should then reset.
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Just do a hard reset to this set and check. To make it a hard reset, unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If this do not help you, the main board to your TV is faulty. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/
There's some kind of circuit fault and it overheats,Sound like the power board on the tv need to be replaced. You can call or email the manufacturer and see what they say. Also get a cost estimate for the repair. It might not be cost effective in repairing the tv, due to the price of labor.
Tries tv unplug,replug it back like about an hour later.Now the tv is resetting itself back to the factory setting.The tv should work now.If still have the same problems,than it is the power supply board is the causes and the problems.Try Ebay.com to buy a whole refurbish power supply board for the replacement.That the board,where the power a/c cord plug into it.
Television is not working, screen is black, blinking red led.
Television is probably malfunctioning due to electrostatic discharge. Try resetting the television by unplugging it from the power outlet for 10 seconds.
Make sure that the power cable on the display and the VGA cable with trailing audio cables are connected correctly (use the originally supplied VGA cable.) between 'MONITOR' of the TV and 'VGA1' of the display.
Dont know if this will work for you or not, but my brother gave me his because of the same problem. It would power up and a green light would come on, then after 10 -15 seconds it would change to a red blinking light. I plugged a usb cable into the service port on the side and left the other end unplugged. Then plugged the tv back into the power. i took a small screwdriver and ran across the contacts in the end of the usb cable until both the red light and the green lights came on. I did this several times listening fot the clicking noises in the TV. after doing this for approx 20 seconds, i pressed the power button and the TV worked fine. 5 days now and no problems. Only thing I can think is I somehow reset the software and now it is working fine. Hope some of you can figure this out and give it a try. if the TV is just sitting, you have nothing to lose
The general problem with LCD type TV's is that the power supply
fails. They are very sophisticated designs that are difficult to
troubleshoot and generally best to just replace the module, but
sometimes there is visible damage in some of the electrolytic
capacitors (visibly bulged) and high voltage rated parts can be
Hope Ya Fix It