Tubbutec Juno-66 User Manual
Tubbutec JUNO-66
Midi retrofit and feature extension for Roland Juno-6 and
Juno-60
User Manual for firmware version v1.1
http://tubbutec.de
1
Contents
1 Juno-66 5
1.1 Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Juno-66 switches and buttons 6
3 Play Modes 7
3.1 Play Modes Overview . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Poly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Duo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Three voice . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5 Mono A and B . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5.1 Auto portamento in Mono B . . . . . . . . . . . . . . 9
3.6 Chord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.6.1 Save a Chord . . . . . . . . . . . . . . . . . . . . . . 9
3.7 Polychord . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.7.1 Recording a new Chord . . . . . . . . . . . . . . . . 9
3.8 Changing the play mode when arp is on . . . . . . . . . . . 10
3.9 New- and Old-school chord memory modes . . . . . . . . . . 10
4 Portamento 10
4.1 Select portamento speeds . . . . . . . . . . . . . . . . . . . . 10
4.2 Portamento and play modes . . . . . . . . . . . . . . . . . . 11
4.3 Constant Time and Constant Speed . . . . . . . . . . . . . . 11
5 Powerarp 12
5.1 Powerarp overview . . . . . . . . . . . . . . . . . . . . . . . 12
5.2 Creating a new sequence . . . . . . . . . . . . . . . . . . . . 12
5.3 playing and transposing . . . . . . . . . . . . . . . . . . . . 12
5.4 Mode and Range . . . . . . . . . . . . . . . . . . . . . . . . 13
5.4.1 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.4.2 Range . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2
CONTENTS 3
5.5 Playing a previously saved sequence . . . . . . . . . . . . . . 13
6 Custom tuning, scales and detuning 14
7 Midi 14
7.1 Midi in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.2 Midi out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.2.1 Midi out as played . . . . . . . . . . . . . . . . . . . 14
7.2.2 Midi out as sounds . . . . . . . . . . . . . . . . . . . 15
7.3 Arpeggiator and Sample and Hold Trigger . . . . . . . . . . 15
7.4 Filter over midi . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.5 Program change . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.6 Pitch Bend . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Additional filter ADSR 16
9 Triangular filter LFO 17
10 S/H filter LFO 17
11 Config menu 18
11.1 Enter and exit the config menu . . . . . . . . . . . . . . . . 18
11.2 Configure Midi Channels . . . . . . . . . . . . . . . . . . . . 18
11.3 Portamento settings . . . . . . . . . . . . . . . . . . . . . . . 18
11.4 Detuning, Scales and Fatness . . . . . . . . . . . . . . . . . 19
11.5 Configure arp trigger . . . . . . . . . . . . . . . . . . . . . . 19
11.6 Configure S/H trigger . . . . . . . . . . . . . . . . . . . . . . 19
11.7 S/H LFO amount . . . . . . . . . . . . . . . . . . . . . . . . 19
11.8 Duo and Three voice . . . . . . . . . . . . . . . . . . . . . . 19
11.9 New-school and Old-school chord memory modes . . . . . . 20
11.10Auto portamento . . . . . . . . . . . . . . . . . . . . . . . . 20
11.11Pitch bend calibration . . . . . . . . . . . . . . . . . . . . . 20
11.12Factory reset . . . . . . . . . . . . . . . . . . . . . . . . . . 20
12 Tips and tricks 20
12.1 Transferring a melody to Powerarp . . . . . . . . . . . . . . 20
12.2 Use of Powerap transpose and Polychord . . . . . . . . . . . 21
12.3 Copy a Polychord . . . . . . . . . . . . . . . . . . . . . . . . 21
13 Appendix 22
13.1 Midi controller chart . . . . . . . . . . . . . . . . . . . . . . 22
13.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 23
4 CONTENTS
13.2.1 Midi in not working . . . . . . . . . . . . . . . . . . . 23
13.2.2 Midi loop back problems . . . . . . . . . . . . . . . . 23
13.2.3 Midi filter control and S/H LFO not working . . . . . 23
13.3 Thanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5
1 Juno-66
The Juno-66 is a midi retrofit and feature extension for the Roland Juno-6
and Juno-60 synthesizers. It features various additional play modes, a freely
definable arpeggiator / sequencer, midi in and midi out,two chord memory
modes, two additional filter LFOs and plenty other features.
This manual only describes the features different from the Juno-6 / 60.
Great care has been taken to not alter the original behaviour of the synths
with an exception of the key transpose function.
1.1 Versions
New features in version 1.1:
• Three voice mode optionally replaces Duophonic mode
• Additional ADSR envelope for filter
• Optional auto portamento mode for ’Mono B’
• Adjustable divider for internal arp clock and external trigger
• Select between old- and new-school chord memory
6 2. JUNO-66 SWITCHES AND BUTTONS
2 Juno-66 switches and buttons
The Juno-66 functions are controlled by the following switches and buttons
on the left side of the synth’s panel:
KEY TRANSPOSE, HOLD, ARP ON/OFF, ARP MODE and ARP range.
The original function of the KEY TRANSPOSE button is replaced and it
now serves as a ’FUNCTION TRANSPOSE’ button, allowing the control
of many additional functions. When the arpeggiator is switched off, the arp
button and switches double as switches to set the play mode, portamento,
and control the Powerarp sequencer. A sticker showing the most important
additional features come with the kit.
KEY
TRANSPOSE
HOLD
ON/OFF MODE RANGE RATE
ARPEGGIO
UP
DOWN
1
2
3
UP
&
DOWN
PORTA
Poly
Mono A
Chord
UP
U/D
D
Off
Fast
Slow
1
2
3
Duo
Mono B
Polychord
MODE
Record
Chord
Powerarp
+
+
ARP
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Figure 1: Juno-66 controls
7
3 Play Modes
3.1 Play Modes Overview
In addition to the 6 voice polyphonic mode five new play modes are introduced with the Juno-66:
Two monophonic modes, a duophonic mode, chord memory and Polychord.
When the arpeggiator is turned off, use the MODE switch and the KEY
TRANSPOSE button to select the play mode. If the KEY TRANSPOSE
led is off you can select the left column of modes (Poly, Mono A and Chord),
by pressing the KEY TRANSPOSE button, the led turnes on and the second column (Duo, Mono B and Polychord) is selected. When the arpeggiator is turned on the play modes can still be selected, see below.
PORTA
Poly
Mono A
Chord
UP
U/D
D
Off
Fast
Slow
1
2
3
Duo
Mono B
Polychord
MODE
Record
Chord
Powerarp
+
+
ARP
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Figure 2: Play mode selection overview
3.2 Poly
Poly mode is the normal 6 voice polyphonic mode also used in the original
synths. The voices are assigned in a rotary algorithm and voice stealing is
performed on the ’oldest’ voice.
8 3. PLAY MODES
3.3 Duo
The duophonic layers three oscillators per voice and detunes the voices to
create a thicker, denser sound similar to the ’supersaw’ or ’supersquare’
modes often found in synthesizers. The fatness can be controlled by midi
7 or in the config menu 11. By adjusting the fatness a wide range of sonds
from ’clean’ over ’fat’ to ’dirty’ and finally ’detuned’ can be achieved. Voice
stealing is performed so that only the second played voice is replaced, the
first stays until released.
Use the config menu to select between Duo and Three-voice modes.
3.4 Three voice
The three voice mode optionally replaces the Duo mode. Use the config
menu to select which of the two are used when setting the panel switch to
Duo.
Three voice mode layers two oscillators per voice and detunes the voices
to create a thicker, denser sound similar to the ’supersaw’ or ’supersquare’
modes often found in synthesizers. The fatness can be controlled by midi
7 or in the config menu 11. By adjusting the fatness a wide range of sonds
from ’clean’ over ’fat’ to ’dirty’ and finally ’detuned’ can be achieved.
3.5 Mono A and B
In the monophic modes all six Oscillators are layered and detuned with
respect to each other to achive a thicker, denser sound similar to the ’supersaw’ or ’supersquare’ modes often found in synthesizers. The fatness can
be controlled by midi 7 or in the config menu 11. By adjusting the fatness
a wide range of sonds from ’clean’ over ’fat’ to ’dirty’ and finally ’detuned’
can be achieved.
The monophonic mode assignes the notes in a ’last played’ fashion: Press a
key and it will be played. When releasing a key and keys are still pressed,
the last played note is played. The algorithm memorizes the last eight
played keys to create an intuitive feeling.
In Mono mode A the envelope is retriggered each time a note is played,
Mode B does not retrigger the envelope when playing legato.
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