Sharp notevision not reg error - Sharp Notevision PG-B10S Multimedia Projector

Take it to a Sharp authorised repairer. There is nothing you can do to fix this yourself.

press power buttons once,

http://www.retrevo.com/support/Sharp-PG-C30XU-Projectors-manual/id/6893ci257/t/2/
usually the OHP, will take many input formats please use the user manual above to look into this matter, There really is no reason that you shouldn't be able to?

Hold down ON button on the projector for about 3 seconds while the projector is being turned on.

To my knowledge this manual is available on paper only. What is the problem you are trying to solve? Perhaps we can help you to solve it.

Dan

if you don't hear a high-pitched whir, the colorwheel needs replacing. if you do hear it, the lamp may need replacing. if the lamp is new, there is a power supply problem.

you need an infrared receiver that plugs into your laptop to receive the signal ...honestly they arn't very reliable...go buy a targus presentation remote at staples for 39-69 bucks if you want areceiver i think i have one left

I think you need remote for above said process.
Get original Sharp remote for XG-P10XU from Sharp Accessories.

Looks like the wrong lamp was installed, or the cooling fan is not working. Careful - it may be permanently damaged, as the LCD inside can be hurt by high temperatures.

if it is only when the computer is connected, replace the cable.