We had a lightning storm sand since then my TV will not work. Power light comes on but no codes are given to try to diagnose.

Contact the authorized service center for Panasonic.

Your probably have power supply damage, but lightning strikes can do major damage in all circuits.

during storms it is advisable to turn of and disconnect electronic devides, there must have been a strike not far from you?

Internal power supply failure. Was there a lightning storm in your area recently or utility work being done recently? This two things usually kill TV's and other electronics with surges when power is restored. If the set is under warranty call the manufacture, if not, call you homeowners insurance agent to see if the damage is covered w/or w.o. deductible. At least you can get something toward repair/replacement costs. Future fix, purchase and install a surge arrestor in your main AC panel for the whole house or buy a power strip with a built in surge filter/protector for your expensive equipment.

But, was the cable/satellite feed protected? Lightning can come in from anywhere, not just the power line. The bad thing about the way cable and satellite installers ground things is, they ground to the same grounding system that the house does, which can backfeed the surge through the entire house - it shouldn't, but it can.

I would, however, contact the maker of the surge strip and attempt to file a damage claim. They all come with a liability warranty of some sort.

May be defective or yes possibly damaged during electrical storm, its always a good idea to unplug valuable electronics during a storm.

No,Ur power supply board have a big jolt massive power search.It dead,change the power supply board,will solved this problems.Tries Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

You might have had a power surge.Try unplugging your TV for 5 minutes and plugging it back in. If you cannot get a picture from any device such as a DVD player and cable then your TV needs serviced call a repair man. Good Luck!

Defective HV transformer. (Likely lost it during the storm)...accordianman