Microtek CX4 - Manual (Page 7)

Even if any one of the above conditions happens, you can always control the
projector via keys on the control panels of the projector.
Warning：
The laser pointer feature in the remote control will emit high energy. Do not look
into it directly or the red beam will injure your eyes seriously. Do not let children
play with the remote control.
Remote Control Briefing Functions
The briefing functions offered by remote control are as follow:
Press the FREEZE key on the remote control to still the image that is
being displayed, and OSD menu will display the icon of FREEZE.
Press the DIGITAL ZOOM key on the remote control to enlarge a certain
part of the displayed image form the Computer input or the Video input.
Adjust the four direction keys on the remote control or on the operational
panel allows you to adjust the position of the displayed image, OSD
menu will display the icon of DIGITAL ZOOM.
Note: If you want to enlarge this displayed image and still the image that is being
displayed at the same time, just press the DIGITAL ZOOM key and the FREEZE
key next. If you press the FREEZE key and the DIGITAL ZOOM key next, the first
function of DIGITAL ZOOM will be relieved by FREEZE.
Press the BLANK key on the remote control to start the blank function
and OSD menu will display the letters of BLANK.
When press FREEZE, DIGITAL ZOOM and BLANK key next, the three
functions will execute at the same time. You must press key reversely to
relieve functions.
Note: FREEZE, DIGITAL ZOOM and BLANK will execute at the same time in the
Computer input, but not in the Video input.
When you use the MUTE button on the operation panel of the projector
and the FREEZE key on the remote control, the OSD menu will display
Mute icon and FREEZE at the same time.
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