XG-P25XE (serv.man34). Basic operation - Sharp Projector User Guide / Operation Manual. Page 15

You can double the brightness of an image by stacking two projectors and projecting the same picture
simultaneously. (Stack Projection)
Connect two projectors by using the RS-232C cable. Then assign one as the master and the other as
the slave. In this way, you can control two projectors with one remote control. See page 

procedure details.

• When operating the master projector with the remote control, actuating signals are transmitted to the slave projector through

RS-232C, which then responds in concert with the master. The buttons below can control both the master and the slave at
one time.
POWER ON, POWER OFF, BLACK SCREEN, INPUT (1, 2, 3, 4 or 5)

• The slave projector cannot be controlled directly with the remote control.
• Even after setting up for stack projection, you can still control each projector by one of the methods below.

(a) Use the operation buttons on the projector.
(b) Connect the remote control to the projector with a cable.

• For details on intended purpose, see pages 

This function can be used to lock the use of certain operation buttons on the projector. The user can still
operate the projector fully with the remote control. See page 

 for the procedure details.

All operation buttons are functional.

Only Input/Volume/Mute functions on the

projector are available.

All operation buttons on the projector are
unavailable.

• To cancel the Keylock Level, perform the above procedure using the remote control.
• See page 

 for details using the password function.