Hitachi CP-X8240 Benutzerhandbuch

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NOTICE  ► Intellectual Stack can be operated only in pairs of the same model 

projectors.
► A maximum of two projectors can be used as Intellectual Stack.
► Depending on the installation and surrounding environment, images 

projected from the two projectors may not superimpose well enough.  The 

images cannot superimpose well enough especially when the screen is slanted, 

deformed or the surface is uneven.  
• Images projected immediately after turning on the projectors are unstable due 

to rising internal temperature.  Wait for more than 20 minutes before starting 

to adjust the superimposed images.  

• The image positions may shift due to temperature change, vibration, or shock 

caused by hitting the projector.  Install the projectors in a stable environment 

when using Instant Stack.  If the image positions are shifted, readjust the 

images. (

6, 8, 11)  

• The image positions may shift over time due to the tension and the weight of 

the connecting cables.  Make sure not to impose any load on the projectors 

when arranging the cables.  

• If the volume level of the built-in speakers is too high, noise may occur and 

the image quality may deteriorate. In this case, check the volume setting on 

both projectors. 

• When two projectors are connected using the RS-232C cable, the Main 

projector will be able to control the Sub projector. This feature is known as 

Intellectual Stack. (

8)  When Intellectual Stack by means of RS-232C 

feature is used, RS-232C communication cannot be used to control the 

projector. If you wish to control the projectors from a computer, use the LAN 

connection that is connected to any of the projectors. 

• When Intellectual Stack is used, the operations or settings of some functions 

are restricted.  Refer to this manual for details. (

30)