I have a 42PF7321D/37. power lite blinks 4 times and repeats. no picture

philips 42 plasma flashing blinking 4 red lights 42PF7321D/37 screen does not come on need help

Most likely it going to be a power supply related problem. The red blinking light is a code for a TV tech to diagnose the problem on the power supply board itself or the board that regulates the power for the screen. Some manufactures call it a Backlight Inverter Board. A TV repair shop should be able to look at it for you and tell you which board is bad.
Replacement boards can be found at a good price at Shopjimmy.com

Problem is a bad audio IC esp if your are reciving 11 blink code
if it is a 5 blink code replace Crystal 1h00 On Ssb new part number is 24225430 1397

relay clicking is a power board failure --- part of the board still works to supply power to the flashing lights--- the lights are related to an error code while in protection mode

contact www.wehavepart.com 1-800-575-9833 for the part and see how much it cost. Or www.advancebaldwin.com or www.andrewselectronics.com./

The probleis with one of the maina boards and trouble shooting would have to be done to see which board is bad.

That blink don't mean nothing. Measurements need to be made. Don't just buy the board troble shooting would need to be done to see witch board is bad. Also look on the fron of the set and see how many time the led flashes. That wher your error code comes from..

The model number is KV-36FV15 and blinking is constant no pause

my dad had this happen too. after some research, we found out that there are two capacitors on the power supply board right next to the connector for the main logic board that went bad. you can just pull those out and solder in new ones, and it works like new again! i found a repair kit on ebay for $35 including shipping, and that's all it took!

flashing 4 times in 3 second