InFocus IN5122 Manual page 6

1.2 Important safety instructions
NOTICE ► Instant Stack allows you to stack two projectors or arrange
them side-by-side easily. Depending on the installation and surrounding
environment, images projected from both projectors may not superimpose
perfectly. The images cannot superimpose well when the screen is slanted,
warped or has an uneven surface.
• Images projected immediately after turning on the projectors are unstable due
to rising internal temperatures. Wait at least 20 minutes before beginning to
adjust the superimposed images.
• Image positions may shift due to temperature change, vibration, or shock
caused by a projector impact. Install the projectors in a stable environment
when using Instant Stack. If the image positions shift, re-adjust the images.
( 9, 12, 15 )
• The image positions may shift over time due to the tension and the weight of
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, both projectors may
resonate, noise may occur and the image quality may deteriorate. In this
case, check the volume setting on both projectors. Lower the volume until the
symptoms disappear or arrange the projectors side-by-side.
• When two projectors are connected using an RS232 cable, the Main projector
will be able to control the Sub projector. This feature is known as Smart
Stack. ( 11 ) When Smart Stack is used with an RS232 cable, RS232
communication cannot be used to control the projectors. If you wish to control
the projectors, use either of the projector's LAN connections.
• When Smart Stack is used, some function operations and settings are
unavailable. Refer to this manual for details. ( 34 )
(continued)
4
Introduction