I have a panasonic Tv 1080i it wont turn on, there...

We recommend you remove all HDMI cables from the TV then unplug the unit's power cord for 30 seconds. Then plug the power cord directly into the wall. If the problem persists we recommend you have the TV evaluated by an authorized service center.

The clicking sound is a safety device that prevents that TV from starting because a fault has been detected.

The fault is also indicated by the two blinks. Two blinks point at a problem with one of the low voltage lines (it should be 15V) from the power supply. The PSU is the part to be tested and eventually replaced. Before calling the technician try to unplug the power cord and leave the TV to rest for about one hour before restarting.

It could be your main board going bad.

does the power indicator blink? If so thats an error code let me know how many time it blinks

one or more lights on the front should blink an error code

Set likely has either a problem with its power supply board or something is pulling voltages there down--

Power supply board is the place to begin

The power light keeps flashing and the tv won't turn on. If you unplug for a minute and hit the power button it sound like it is coming on then it shuts off and the red power light flashes slowly. The TV is a Panisonic 1080i HDTV, about 6-7 years old.

The power supply board it dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Unplug the power cord, wait and watch the power light until it goes out completely, then wait 3 - 4 more min. and then plug the power cord back in and it should turn on.... its a hassle but at least it works.

By the sound of it its a dead power supply im afraid :( It is very common for them models at that age very common... it may be cheaper to fix then buying a new one but ill let you decide that one but yea theres hundreds of people that have the same problem with them panasonic's bummer dude :(

3 blinks corresponds to convergence ICs
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html