Note: This FAQ applies to the original Axiom keyboards; see this article for the Axiom (2nd gen).

Global Channel

MIDI messages can be sent on any of 16 channels. If you are connected to a computer, the MIDI software will be receiving on all channels in most cases. However, when you are connected to external MIDI synthesizers, sound modules and some virtual instruments, you need to match the transmit channel of your keyboard with the receiving channel of the MIDI device for the connection to work properly.
 

To set the channel of your keyboard:

49- and 61-note versions:

• Press the Glob Chan button. The LCD will show the channel on which the keyboard is currently transmitting.
• Enter a channel between 1-16 on the numeric keypad. The LCD will update to display the new channel selected as you enter the data.
• You can also use the -/+ buttons to step through the channels.
   

25-note version:

• Press Recall and Program together to access the Glob Chan setting. The LCD will flash the GLOB CHAN
  symbol.
• Use the -/+ buttons to select a channel between 1-16. As you press these buttons, you will see the selected channel change on the LCD display.
  
  Or
   
• Press the Advanced button.
• Press Recall and Program together to access the Glob. Chan setting.
• Enter a channel between 1-16 on the numeric data entry keys.
• Press the Enter key to confirm the entered value.

Zone Channel

The Zone Channel parameter specifies which MIDI Channel a Zone will use when transmitting MIDI data. Assigning each Zone to its own channel will allow you to play up to 4 different sound patches on a connected synthesizer. This setting is saved as part of a user patch when stored to a Memory Location.

To assign the channel of a zone:

49- and 61-note versions:

• Press Glob Chan and Zone Range together to access the Zone Channel setting. The LED in the Zone/Group button lights to indicate that Zone/Group mode is automatically selected.
• The LCD displays the current transmit channel for the automatically selected zone and flashes its symbol. Use Zone buttons 1 through 4 to select a different zone if necessary. While multiple zones can be active at the same time, only the zone with the flashing symbol will be affected by this change.
• Enter the new channel number (00 to 16) using the numeric keypad. (Please note that assigning the zone to channel 00, will set the zone to transmit on the Global Channel).
• Once the channel edit is complete, Zone/Group mode exits automatically.
• Repeat to edit the channel settings of the remaining zones.
   

25-note version:

• Press the Advanced button.
• Press the Zone Chan key
• The LCD displays the current transmit channel for the automatically selected zone and flashes its symbol. Use Zone buttons 1, 2 or 3 to select a different zone if necessary. While multiple zones can be active at the same time, only the zone with the flashing symbol will be affected by this change. Enter the new channel number (00 to 16) using the numeric keypad. (Please note that assigning the zone to channel 00, will set the zone to transmit on the Global Channel.)
• Press the Enter key to confirm.
• Repeat to edit the channel settings of the remaining zones.
  
  The transmit channel of each zone can be stored to the 20 memory locations. You must ensure that Group A is
  activated when storing this data since the Zone settings are stored within this group. Please see this article for more information on Groups.

You can use the 4 zones to quickly switch among 4 different MIDI Channels.  When the Zone/Group button is lit you can press any of the 4 zone buttons to instantly access the zone and begin playing on the MIDI Channel assigned to the zone.