I have a Sony VPL-PX31 LCD projector. The lamp cover light flashes, then remains lit after powering it on. I suspect the push button safety switch is non respondent. Is it possible to bypass the lamp cover switch?

SOURCE: Reset Timer Lamp Sony VPL-HS60 projector

To reset the lamp timer:
1) With the projector plugged in and turned off, press the 'ON/STANDBY' button to put the projector in 'STANDBY' mode. NOTE: You have to press the button on the projector itself, you cannot use the remote for this step (this is not clear in manual).
2) Now, using the remote, press the following keys in order: RESET, <--, -->, ENTER.
3) Timer should now read '0'.

SOURCE: Sony VPL-CS1 projector

Hi there

You should first check if there is any visible damage on your lamp. If not then it could be a faulty Ballast ( lamp powersupply )

SOURCE: Sony LCD Projector - burned prisms

I have the same projector, but my problem is with red.

A replacement prism assembly is about $2k.

If you can get your hands on another projector for cheap, that's your only hope. You can swap out the blue lcd panel from your prism with someone else... it's a bit of mucking around, but worth it of you can.

SOURCE: Reset Timer Lamp Sony VPL-HS60 projector

According to the manual, you need access to the RESET button, the left and right arrows and the ENTER button to clear the counter. Press the following in order for less than 5 seconds each:

RESET
Left Arror
Right Arrow
ENTER

The above sequence should clear the counter.

Dan

SOURCE: how to reset lamp on sony lcd projector xga vpl-px20

Hi,
After replacing lamp, connect projector AC power cord and turn the projector in standby mode.

Press following keys on control panel for less then 5 seconds each..
RESET, <==, ==>, ENTER.
That will reset lamp timer in projector.
Thanks.