I have the Panasonic pt -l759u multimedia projector the lamp timer has reached zero i need to know how to reset it i currently cant even get to the menu

How long ago did you replace the lamp?
If the lamp has not actually been replaced and you are attempting to bypass this safety feature then I have bad news for you. Once the projector determines current flow through the lamp has exceeded the threshold amount, it will put the projector into the mode it is in now - Critical Lamp Replacement. You can set the projector bulb to low power output and see if that allows you to reset the bulb life timer but, again, if you have not actually replaced the bulb assembly, you are in danger of the bulb bursting under pressure. This can actually damage the projector.

You can find the manual for your projector at

ftp://ftp.panasonic.com/projector/ptl785u/pt-l785u_oi.pdf

I have a Panasonic PT-AE4000U and could not reset the timer after replacing the bulb with a, non-Panasonic branded bulb. Calls to tech support were not very helpful. It was another bad customer service experience. Through troubleshooting it myself, I discovered the solution was simply to unplug EVERYTHING (serial cable, hdmi cables, etc.) from the device, power it off and back on. Follow the procedure in the manual, the timer immediately reset!!

Hi, Replacing the lamp in a Sharp LCD projector requires the lamp indicator to be reset. When the lamp needs to be replaced, the indicator becomes red. Resetting the counter for the lamp hours to zero will also reset the indicator to green.

Attach the power cord to the projector and plug it into an electrical outlet.

Step 2Locate the buttons on the top of the projector and simultaneously hold down the "Enter", "Menu" and "down arrow" buttons, then press the "Standby/On" button.

Step 3Continue holding all four buttons depressed until the lamp indicator light begins flashing green.The counter is now reset. Zero hours will now be displayed on the screen.

Menu -> Option 2 -> Lamp Timer -> hold enter 3 seconds -> power off

When you remove one of the lamps, you're notice that there's a micro-chip build into the housing itself. Unfortunately there's no way of manually resetting the lamp hours, due to the chip. You'll need to replace the whole lamp assembly.

panasonic projectors , even if the lamp has reached end of life gives u 10 minutes to reset the lamp counter
so when u replace a new lamp, go to options, lamp counter, reset & press stanby button for confirmation!
thats all the unit powers off & when u check the lamp counter , its shows 0
u r done!!!!!!

You have to reset the lamp timer.

With power available at the projector and the lamp off (projector off) - hold the input button on and press the power button on and hold for 5 secs. This will reset the lamp timer to zero.

I wish they could have stuck this in the operators manual.

With the power on and the lamp off, hold the input button down on the projector then press and hold the power button for 5 seconds