Use the following procedure to change the MIDI channel and OMNI mode of the
TR-707/727:
1) Enter Track Play mode.
2) Press the STOP button to stop the rhythm if it is running.
3) While holding SHIFT, press MIDI CHANNEL and the desired MAIN KEY (1-16) to
select the desired MIDI channel.
4) Press ENTER to change between OMNI ON and OMNI OFF.
TR-707/727:
1) Enter Track Play mode.
2) Press the STOP button to stop the rhythm if it is running.
3) While holding SHIFT, press MIDI CHANNEL and the desired MAIN KEY (1-16) to
select the desired MIDI channel.
4) Press ENTER to change between OMNI ON and OMNI OFF.