Use the following procedure to transmit note numbers from the MIDI out 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 INSTRUMENT GUIDE.
While in this mode, the TR-707/727 will not play its own internal sound source.
Use the same procedure to change back to not transmitting data and playing the
internal sounds.
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 INSTRUMENT GUIDE.
While in this mode, the TR-707/727 will not play its own internal sound source.
Use the same procedure to change back to not transmitting data and playing the
internal sounds.