The green light comes on and then a minute late it gets yellow ptax100u panasonic

Make sure to clean out the insides also so the lamp can get air.

Your tv is not worth fixing im afraid.

SET uses a optical light engine--lamp which is quite hot shines into the engine---blue is first to get the light and heat and is usually first area in the lens and baffles to get damaged(loss of blue leaves red and green which equal a yellow screen.

You have a damaged light engine.

Which light is blinking yellow/orange and can you count how many blinks in 5 seconds its doing and let me know as thats an error indicator.

A continuous flashing red light with the word LAMP on it would definitely mean you're going to need to spend a few bucks on a new lamp....or for a few more, upgrade to a TV from this century that doesn't require lamp changes :)

Time to get a new TV. I have similar problem. In my case, the set turns off, LED blinking green for about a minute or 2, then the set will turn on by itself. Something the LED started to blink yellow after blinking green and then shuts off. I can turn it back on. This happens 3 or 4 times in an hour. After that, the TV stays on for as many hours as I want until I shut it off.
And then the problem repeats everytime I turn it on from a cold start.
I have my eyes on the 50 inch Plasma from Panasonic. Bestbuy has one for 999.99.

It sounds like your battery is bad.

If both yellow and green LEDs come on, this indicates
a deeply discharged or defective battery pack.
Allow the battery pack to remain in the charger for 15
to 30 minutes. When the battery pack reaches normal
voltage range, the red LED should come on. If the
red LED does not come on after 30 minutes, this may
indicate a defective battery pack and should be
replaced.
n After normal usage, a minimum of 1 hour of charging time
is required to fully recharge battery pack.

display comes on works 15 seconds no power just leds green

If both yellow and green LEDs come on, this indicates
a deeply discharged or defective battery pack.
Allow the battery pack to remain in the charger for 15
to 30 minutes. When the battery pack reaches normal
voltage range, the red LED should come on. If the
red LED does not come on after 30 minutes, this may
indicate a defective battery pack and should be
replaced.
After normal usage, a minimum of 1 hour of charging time
is required to fully recharge battery pack.

Problem is the dynamic iris its broken. The only solucon is to change it so get the projectorn to the nearest panasonic sevice and thety will fiks it on waranty