6
Introduction
Tentative naming of two projectors
To be easy to follow the explanation, the following 
names are used in the manual for piling up installa-
tion.
Set A : A projector placed underneath
Set B : A projector placed over Set A
Set 
A
Set 
B
Installation styles
There are following two styles to install two projectors. Instant Stack can support 
both of them.
Style 1 : Piling them up vertically
Style 2 : Lining them up horizontally
This manual is mainly explained the installation of Style 1. If you wish to install 
two projectors in Style 2, refer to the articles you need in this manual. 
1.3 Basic information and preparation
Instant Stack
Instant Stack is the feature that brings you very convenient way to superimpose 
the images projected by two projectors. The projector is specially designed to 
support the feature, and has some functions to support you to install two projec-
tors and superimpose the images.
Intellectual Stack and Simple stack
Instant Stack covers both of the following two features.
If you link two projectors with an RS-232C cable and make necessary setting on 
the projectors, the projectors will automatically collaborate to work under the set-
ting. This use is called as Intellectual Stack in this manual.
If you do not connect an RS-232C cable, the projectors will work individually.  This 
use is called as Simple Stack in this manual.
Remote control for Intellectual Stack and Simple Stack
In Intellectual Stack use, one projector is set as Main and the other is set as Sub.  
(
18
)  If you use Intellectual Stack, only the projector as Main can receive the 
remote control signal. Even if you want to operate the other as Sub , you need to 
point at the Main with the remote control.  
If you use Simple Stack, both projectors can receive the remote control signal.  To 
avoid the operation by the remote control to being mixed up, it is recommended to 
operate one projector by the remote control and to operate the other by the con-
trol panel on the projector or wired remote.  In this case the other projector should 
disable the remote control by KEY LOCK. (Operating Guide → OPTION menu)