I have the 7 blinking light LED problem as well for a panasonic plasma. was not sure if you ever found a solution? Have the power supply exposed, looking for basic things like blown capacitors, but could use a little direction. Best

bad power transformer return unit

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Hi,
By blinking led its shows where is exactly the complaint. You have to count the blinking. How much time its blinks in one sequence. the only it will be possible to say is it power supply or any other boards.

www.electro-medical.blogspot.com

power supply faulty indication

yes my first guess would be teh power supply


You can get get parts for this tv at www.interliquidparts.com

You need to replace the power supply board.
http://www.shopjimmy.com/panasonic-n0ae6km00001-power-supply.htm

Make sure the board is got the same number.


Thanks

plug it in

Either a bad power supply or a bad processor board.
A Good Service Shop should know what the 10 blinks are indicating.
May be a repair cost between $200 and 400 dollars.
Be prepared -
Blessings,
A/V Media Guy