
KENTON
electronics
INSTRUCTIONS FOR MIDI INTERFACE
YAMAHA CS 80
USING THE MIDI INTERFACE
When you turn on the synthesizer for the first time, you will be in omni-on mode for receive (all channels) selecting a channel will select omni-off. See next page for factory default settings When you select a transmit or
receive channel, this will be stored in memory and will be remembered for when you subsequently turn on the
synth - all parameters listed on the next page are stored.
If you want to put the machine back to the factory default settings at any time, switch the synth on whilst holding
the red push button pressed - hold for a couple of seconds then release.
SWITCH
The switch on the control panel is to route the CS-80 sub-oscillator through the Mod Wheel - in the up position the
CS-80 will be as normal - in the down position, the appropriate destination can be selected on the CS-80 but n o
effect will be noticed until the MIDI Mod Wheel is advanced.
RED PUSH BUTTON
Two modes are available by pushing the red push button.
1) SET-UP MODE
Setting MIDI channels and assignments. Give the red push button one short press (half a second each) - then
release. Follow this with a note or sequence of notes as detailed on page 2. After selecting a channel you will b e
automatically returned to playing mode but after making assignments you will need to press the ENTER key (Top
C) to return to playing mode. This is to enable you to make the multiple key presses required when re-assigning
sources to destinations. (N.B. set-ups are stored in non volatile memory).
2) TRANSPOSE MODE
Press and hold the red push button for four seconds - then release. Middle C will sound on the synth and
continue to sound until you press a key. The note that you press will be the new middle C for MIDI IN. You can set
any value up to two octaves up or down. Settings outside this range will be ignored. Note that transpose mode
cannot be entered from program mode.
ASSIGNING MIDI CONTROL SOURCES TO DESTINATIONS
SOURCES DESTINATIONS (d)=factory default
AFTERTOUCH off / modulation / p.bend / vcf / CS80 after-touch (d)
CONTROLLER X off / vcf (d) / not used
CONTROLLER Y off / vcf / not used (d)
VELOCITY off (d) / vcf / vca
MIDI VOLUME off / vca (d)
Sources can control more than one destination at once, but a destination can only be controlled by one source at
a time. Thus if velocity is currently controlling VCF and then you switch aftertouch to VCF, velocity will then control
nothing until re-assigned.
POLY / MONO AFTERTOUCH
You can control the CS-80 aftertouch from MIDI by using either MONO aftertouch [channel pressure] or POLY
aftertouch [polyphonic key pressure]. Factory default for aftertouch is for polyphonic aftertouch to be ignored and
for mono aftertouch to control the aftertouch of the CS-80. To make the CS-80 receive POLY aftertouch, simply
assign MONO after-touch to be ignored (D key - followed by the ENTER key) (or assign it to one of the other
destinations). [see next page]

C Receive channel 1 [ Bottom C ] MIDI note number 36
Db " " 2
D " " 3
Eb " " 4
E" " 5
F " " 6
Gb " " 7
G " " 8 Selecting a receive channel
Ab " " 9 will automatically put the
A " " 10 MIDI into omni off mode.
Bb " " 11 That is, it will receive on
B " " 12 the selected channel only.
C " " 13
Db " " 1 4
D " " 15
Eb " " 16
E Omni on mode (default)
F Not Used - - Gb " "
G " "
Ab " "
A " "
Bb " "
B " "
C " "
Db " "
D " "
Eb " "
E " "
F " "
Gb " "
G " "
Ab " "
A " "
Bb " "
B " "
C " "
Db " "
D " "
Eb program change OFF
E " " ON (default)
F p.bend & mod wheel OFF
Gb p.bend ON (default)
G mod wheel ON (default)
Ab controller Y ignored (see page 3 re controller Y)
A " vcf
Bb " *** (default) (*** = not used on this synth)
B controller X ignored (see page 3 re controller X)
C " vcf (default)
Db " ***
D MONO aftertouch ignored [POLY after-touch on]
Eb " modulation (default)
E " p.bend (up only)
F " vcf
Gb " to CS80 after-touch (default) [POLY after-touch ignored)
G velocity ignored (default)
Ab " vcf
A " vca
Bb MIDI volume ignored
B " vca (default)
C ENTER key Press and release. [ Top C ] MIDI note no. 96
NOTES

1) Controller X can be any MIDI controller. After pressing the red push button twice to enter SET-UP mode,
operate the required MIDI controller before pressing the C or Db key that will assign it to VCF or ***. If you do not
operate a controller before pressing the C or Db key, then controller X will respond to MIDI controller 16 - that is
General purpose controller 1 (10 hexadecimal) 0
2) Controller Y can be any MIDI controller. After pressing the red push button twice to enter SET-UP mode,
operate the required MIDI controller before pressing the A or Bb key that will assign it to VCF or ***. If you do not
operate a controller before pressing the A or Bb key, then controller Y will respond to MIDI controller 17 - that is
General purpose controller 2 (11 hexadecimal)
3) Controller X/Y will take priority over other control messages, so if controller X/Y is the mod wheel, mod wheel
messages will operate whatever controller X/Y is currently assigned to, instead of operating modulation.
4) Receive channel and omni-on setting will return you directly to playing mode, all other keys will let you stay in
SET-UP mode until you press the ENTER key (Top C)
5) The ENTER key (Top C) also resets all controllers to their default values - off in most cases - on for volume centre for pitch bender.
6) After pressing the red push button twice to enter set-up mode, the first assignment that you make for any given
source (after-touch for example) will cancel all other destinations currently assigned to that source - if you want t o
make multiple assignments, you will have to do this in the same set-up session, in other words, before you press
top C. - For example - irrespective of what aftertouch was previously assigned to, pressing F (and release) will
assign it to VCF only - to make aftertouch also bend pitch, you will have to press E ( and release) before pressing
the top C which will ENTER the information and store it in n.v. memory.
OTHER SET-UPS WILL REMAIN UNALTERED UNLESS SPECIFICALLY CHANGED
7) Control change commands recognised - (numbers in decimal)
121 reset all controllers 01 modulation wheel
123 all notes off 07 Main volume
124 omni mode off (always poly) 64 sustain pedal
125 omni mode on (always poly) 94 select transpose mode
126 (mono mode) = all notes off 95 select set-up mode
127 (poly mode) = all notes off
nnn Controller X (user defined where nnn = any controller)
nnn Controller Y (user defined where nnn = any controller)
Controller X default = 16 Controller Y default = 17
8) Other commands recognised - (numbers in hexadecimal)
8nH notes off 9nH notes on & velocity
BnH control change (see above) CnH program change
DnH channel pressure (aftertouch) EnH pitch-bend change
FEH active sensing

MIDI CONTROL OF RED PUSH BUTTON
The red push button can be "pressed" via MIDI as MIDI switch number 95 (5Fh) for regular program mode or 94
(5Eh) for transpose mode. The selection of the push button is enough, it doesn’t matter if it is being turned on or
off.
In hexadecimal BX - 5F - 00 = program mode
In hexadecimal BX - 5E - 00 = transpose mode
Where X is the current MIDI channel.
[N.B. whilst in program/transpose modes the MIDI is in omni on mode]
MIDI CONNECTORS
MIDI IN should be connected to a MIDI OUT or a MIDI THRU similarly MIDI OUT should be connected only to a
MIDI IN and a MIDI THRU should also be connected only to a MIDI IN.
MIDI OUT is the signal from the synthesizer (or drum machine etc.) that is to be sent to another instrument. MIDI
IN is a received signal that contains MIDI information from another synth, and MIDI THRU is an exact copy of
information arriving at the MIDI IN socket. This allows several instruments to be connected together.
If you want to wire your own MIDI cables the following information may be useful.
1) Although a 5 pin connector is used, only two connections plus an
earth connection are required.
2) If you look at the din plug from the wiring side you will see that the pins are numbered. From left to right (or
clockwise) these are 1 - 4 - 2 - 5 - 3.
3) The pins numbered 1 & 3 are not used.
4) The screen (earth) is connected to pin 2 (centre pin)
5) Pin 4 of one plug should be connected to pin 4 of the other
6) Pin 5 of one plug should be connected to pin 5 of the other
7) You should now have a working MIDI lead
8) It is preferable to label one end of the cable MIDI IN & the other end MIDI OUT, to avoid confusion.
WARRANTY
All Kenton MIDI Kits come with a 12 month (from purchase date) back to base warranty, (i.e. customer must
arrange and pay for carriage to and from Kenton Electronics).
Copyright (c) KENTON Electronics & John Price 1986-2001
KENTON
electronics
Brookfarm House, Station Road, South Wimbledon, London, SW19 2LP, UK.
Tel +44 (0)20 8544 9200 Fax +44 (0)20 8544 9300
www.kenton.co.uk
e. & o. e. CS804201/9209141540/JKP