I have a panasonic PT-50LCX63 and when you turn it on it just flashs green on the on button never turns on

Check lamp door and make sure it's secure for the safety switch to be engaged.

Hi,
Do you see any light lit solid/ blink when tv shuts down?
Let me know is it Panasonic PT-50LCX63 or any other model?
Above info will help me to diagnose problem and to suggest a solution.
Thanks.

Contact Panasonic Tech support..tell them series of flashes

http://www2.panasonic.com/consumer-electronics/support/Televisions/LCD-Projection-TVs/model.PT-50LCX63
http://www.retrevo.com/support/Panasonic-PT-50LCX63-TVs-manual/id/275dj691/t/2/
http://www.eserviceinfo.com/downloadsm/41128/SONY_Projection.html
http://www.scribd.com/doc/3507976/Panasonic-103-INCH-Display-Monitor-TV-Plasma-Training-Manual
use these links and manuals to sort your fault.

Sounds like there is a power problem if the neutral (return) wire on the power supply has become high impedance (or even disconnected) then you will get a high pitched sound coming from the TV PSU also the voltage that is presented will not be 240V which will give you the same problem.

The orange power button means standby if you fix the PSU then the TV might work again but it may have been damaged by the PSU.

If light blinks twice then your bulb is bad the bulb is under warranty for five years but only three to replace, call Panasonic

I have a PT-50LCX63 unit. After 5 years and 4 bulbs, a "reset lamp" warning showed up every time I turned on the tv. I have to say that after a few weeks, the message ceased on its own. I don't know if all models eventually reset or turn off, but I could not find any other information on the direct way of resetting. I find the warning a waste of time since the bulbs are good for 10 -14 months. Sadly I missed the class action suit that dealt with the premature lamp failures. I am looking for a new tv at this point. Bulbs have cost me $1200.00 since I bought it. The warning is supposed to allow you the option of replacing the lamp before it fails, Ha! what a joke...Thanks for reading.

You gave someone the infomation on the web site and told them the part number and the address where it could be ordered. Thank you.

I've worked on similar units. If the bulb is good then the ballast that powers the lamp has failed. The ballast is available but around 300-400 US

We had the same problem and found out that we had to replace the Lamp Bulb. The problem is they try to sell you a whole new compartment house with the bulb, but all you need to buy is the bulb (with wires) itself. It will save you a ton.