Roland JUPITER 4 User manual

KENTON electronics
INSTRUCTIONS FOR MIDI INTERFACE
ROLAND JUPITER 4
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) - See
next page for factory default settings When you select a receive channel, it will be stored in memory and will b e
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.
RED PUSH BUTTON
Two modes are available by pushing the red push button. Before you press the red button however, make sure
that no notes are pressed on the synth otherwise the results may be unpredictable.
1) SET-UP MODE
Setting MIDI channels and assignments. Give the red push button two short presses (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 be
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 (d)/ p.bend / vcf / not used
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.

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 " " 14
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 Transmit Key on velocity decrease :
Bb " " " " normal (default) : not stored
B " " " " increase :
C Transmit Key off velocity decrease :
Db " " " " normal (default) : not stored
D " " " " increase :
Eb Not used
E " "
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 " not used (default)
B controller X ignored (see page 3 re controller X)
C " vcf (default)
Db " not used
D aftertouch ignored
Eb " modulation (default)
E " p.bend (up only)
F " vcf
Gb " not used
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. 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. 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) 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
7) Other commands recognised - (numbers in hexadecimal)
8nH notes off 9nH notes on & velocity
BnH control change (see above)
DnH channel pressure (aftertouch) EnH pitch-bend change
FEH active sensing
8) The synth is always ready to receive incoming MIDI notes if they are on the appropriate MIDI channel, but to
you need to set the MIDI switch (on the left side of the lower front panel) in the down position in order to receive
pitchbend & modulation - in addition you should have one of the vco/vcf/vca switches on the bender panel set to
lfo - this will be controlled by the MIDI mod wheel - the MIDI pitchbend is set to always control pitchbend.

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 [phone] Fax [phone]
www.kenton.co.uk
e. & o. e. JUP44113/9307241620/JKP