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27 Operation
Securing the projector
The projector has to be installed in a safe place to prevent theft. Otherwise, purchase a security
cable to secure the projector. A security bar is located on the right side of the projector. See
item 16 on page 9. Insert a security cable to the opening of the security bar and secure it to a
nearby fixture or heavy furniture.
You can also purchase a lock, such as the Kensington lock, to secure the projector. There is a
Kensington lock slot on the rear side of the projector. See item 14 on
page 9. A Kensington
security cable lock is usually a combination of key(s) and the lock. Refer to the lock’s
documentation for finding out how to use it.
Switching input signal
The projector can be connected to multiple devices at the same time. However, it can only
display one full screen at a time. When starting up, the projector automatically searches for the
available signals.
Be sure the Advanced menu - Display > Auto
Source Search is On if you want the projector to
automatically search for the signals.
To manually select the source:
1. Press SOURCE/ . A source selection bar
appears.
2. Press / until your desired signal is selected
and press OK.
Once detected, the picture from the selected source
will appear. If there is multiple equipment connected
to the projector, repeat steps 1-2 to search for
another signal.
• The brightness level of the projected image will change accordingly when you switch between different
input signals.
• For best display picture results, you should select and use an input signal which outputs at the
projector’s native resolution. Any other resolutions will be scaled by the projector depending upon the
“aspect ratio” setting, which may cause some image distortion or loss of picture clarity. See
Aspect
Ratio on page 41
.
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