The power and lamp light keep flashing, and the T.V itself wont turn off unless unplugged,

need the model number of the panasonic and also how many times it is blinking. The blinking is an error code.

Here's something that might also be useful. After you turn on the set, and get the regular red blinky lights, hold down the Device and Menu buttons together for about 5 seconds.
The Power light will start to flash in a two digit sequence.

For example, 3 flashes, then 7 flashes = 37.

Here are the error codes, and the corresponding problem:

12 = No error detected, check power supply.
32 = Lamp Cover is open.
33 = Air filter cover is open.
34 = Lamp abnormality
36 = Light Engine (DMD or Lamp Fan stopped)
37 = Exhaust or Lamp Ballast Fan stopped
38 = Lamp Temperature High
39 = DMD Temperature High
41 = Short is detected
44 = DVI cable between FMT and Engine disconnected

Bad main board

is the lamp light flashing? if yes, lamp needs replacement. you can buy lamp from www.sony.com/dapc

if lamp light if not flashing, turn off tv for 5 mins. then unplug for 1 min. if the same. tv needs service. check www.eservice.sony.com

The "LAMP" LED light indication flashes or staying on too?Yes,than the lamp life are over.Require a new lamp for the replacement.

Lamp could still be going out they only last for 5,000 hrs some 8,000 playing hours.
Check the Lamp Fan if it stops running when Lamp turns on set will turn OFF.
But if you have never replaced Lamp Problem will be the Lamp Mats Has them for $99.00
1-800-628-1118

Ur tv have a LED POWER indicator light and a LED light indicator LAMP flashing?Yes,this is a DLP Tv the lamp live is over,must be replaced it with a new lamp.No,LED light LAMP indicator flashing,than ur tv is a LCD or a Plama tv.Than ur power supply board is dead.Must replaced the power supply board to solved this problems.

Ur power board have dead capacitors,Know how to solders?Take the tv aparts check for capacitors puff up or burst open in the power board.Replaced those capacitors.Or tries Shopjimmy.com,Ebay.com buy a refurbih power board.

The lamp light does not have to flash on this set for it to be the lamp, and most likely it is just that, the lamp. These sets when the lamps get weak they will do exactly what yours is doing.

Yup, it seems a lamp problem can give a blinking green light over the 10 times (1 - 10 times for diagnostic codes), but in my case rather than replace the bulb if it works for a minute then resets with the green light blinking, do what I did.
Take the lamp out and inspect it, it has breather screens top and bottom, if it cant breath because there clogged with dust, clean them, and you can remove the screens, use q-tips and clean the inside. I saved the cost of a lamp and it's working fine!