Your lamp will probably last a lot longer than the TV thinks it should. This procedure will reset the lamp timer so you don’t have to look at that annoying message every time you turn your tv on. Remember that the “lamp” indicator light on the lower left of the set will stay on until the lamp is actually replaced. I had to buy a replacement lamp to get this information, could not find it anywhere for these model numbers.
Press the volume down button on the projection display and hold down the zero button on the remote control at the same time for more than 5 seconds. When the reset procedure is complete, a message will display that the lamp timer was reset to zero.
This procedure will work for Panasonic models: PT-52LCX66 , PT-56LCX66 , PT-61LCX66 , PT-52LCX16 , PT-56LCX16 , PT-61LCX16