The projectors periodically go to a blue screen in the middle of a presentation.

Does it turn off with a computer/video signal going to the projector? If it's just a blue screen, there's a timer within the projector that can be disabled. If there's a signal present, make sure the projector has good ventilation. If you're located in a high elevation, there's an option within the user menu to select "high elevation", which makes the RPM of the internal fans spin faster for better internal ventilation.

this is probably a projector setting
try checking the setting of both systems

If this projector is an LCD (liquid crystal display), your LCD probably gone.This usually happens after a period of time with an LCD projector.Try cleaning the LCD or take it to your Sony dealer. yours faithfully Zkhan

not matching resolution. reset the settings to factory default. if it still has the problem, then swap cables. there may be a short or a break in the cable or connector.

the resolution doesn't match. go into the menu and reset the settings to factory default, then re-select the computer and it should sync.

if it is an lcd projector, its possible the lamp blew due to fan failure and the lamp getting hot prior to failure may have been enough to burn the lcd's. If it is an lcd projector, that's most likely what has happened

You may have inadvertently switched your projector to a different input mode, or the mhz refresh rate, etc., Jon.

This is one of two things. Most likely there is a piece of dust or other obstruction right on top of the blue panel. I'm guessing that your smudge is in the lower center of the screen - that is where these usually occur. The other possibility is that the blue LCD panel is starting to deteriorate and the components separating. This is extremely expensive to repair and Sharp will end up giving you an estimate that approaches the replacement cost for a comparable new projector.

Hello,

There is some problem in your LCD Panels. Service the optical unit ant retry.

regards

Viren

Hi there

If the problem occurs again , you will most probably have to replace the mainboard , as all the inputs of the unit lies on the mainboard itself.