Kenton YP-40 (before Nov 04) - Manual

INSTRUCTIONS FOR MIDI INTERFACE
YAMAHA YP-40
MIDI - - -
Firstly, a few words about MIDI. MIDI is an acronym of Musical
Instrument Digital Interface. It is a system for transferring
information between synths or other equipment. The information is
sent in digital format using codes laid down by the international
MIDI committee.
USING THE INTERFACE - - -
When you first turn on the YP10, it will be transmitting MIDI
information on channel 1. It is possible to change this by using the
mode change push button, which also enables you to send patch
changes via MIDI.
MODE CHANGE PUSH BUTTON
The push button has two functions :-
1) Pressing once only enters patch change mode. Any key then selects
a patch change which is sent through MIDI. You are then automatically
returned to playing mode.
2) Pressing once and holding for a couple of seconds enters program
mode. This enables you to program in the transmit channel number.
You are then automatically returned to playing mode.
On the following page is a list of what each key will do if
pressed during program mode.