521 East 3
rd
Street Mt. Vernon, NY 10553 • www.keydigital.com
Rev 1.0
– Sep, 2021
19
Front Panel Buttons
Input Source (
Blue
)
•
Used for selecting the desired source to be routed to both outputs.
•
When an input source selection occurs, a Power On CEC command is sent to the display(s) enabled on
the Display Control button section
CEC Manager™ Display Control (
Red
)
•
Choose the display that you desire CEC control commands be sent to
CEC
Manager™ Commands (
Green
&
Blue
)
•
Sends CEC commands via HDMI to the display(s) specified by the Display Control buttons.
•
Ensure that CEC is enabled on your displays/projectors. Depending on the manufacturer, HDMI-CEC
may be given a different name. View
for a list of CEC names and how to enable CEC on
popular displays.
•
With KD-Amp220 mode enabled, Mute, Vol +, and Vol -, buttons send RS-232 commands to the KD-
Amp220 instead of CEC commands to the displays(s)
•
When Vol + or Vol
– button is held, the command is sent every 0.5 second
•
Pressing the A/V Mute button sends a black screen to the output. It is not a CEC command.
Note:
Press and hold HDMI 1 + A/V Mute buttons simultaneously for 10 seconds to apply a factory default
reset. Release the buttons when all front LEDs turn off and the unit will re-boot.
