I have a Panasonic PT50LC14. I just replaced the lamp, and the TV worked great for a little while, but now the TV will turn off after a random time. Sometimes a few minutes, sometimes an hour or so.

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Jerico, If you will go on dlp lamps .com I believe they answer that question in their FAQ. You can also give them a call. Look on their site for number. All I know is that they make the whole process really easy.

SOURCE: projection lamp timer reset

I need help resetting the lamp timer. Is there a way to reset the timer w/o the remote? We bought this tv as a floor model 4 yrs ago and they didn't have the actual remote that came with it, so they gave us another remote that works. We replaced the lamp but we keep getting the message that the lamp needs to be replaced and the timer reset. Plus the red lamp indicator is still on. We even used a friend's remote (he has the exact same tv) and it still will not reset the timer.

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push and hold the PIP (same as play) button in the remote control
push and hold the menu button on the front panel of the tv.
Do both actions simultaneously. Of course you have to be close to the tv to do this: pointing with the remote at the sensor AND holding the menu button of the tv panel.
Do this for some seconds and the screen is going to tell you the timer was reset sucesfull and ask you to push exit in the remote control to finish

SOURCE: projection lamp timer reset

The others are almost right. You first hold down the minus button on your "TV", then at the same time hold down 0 on your remote. Make sure if you have a universal remote to swich it to TV.

SOURCE: How do we reset the lamp timer?

Try holding down VOL - on the TV panel and then hold SPLIT or PIP on the remote for 5 seconds. A message should appear saying it is reset. I hope this helps.