19
Juno-106 Upgrade Notes
Digital Oscillators
The Juno-106 Synthesizer uses
programmable dividers from a single
master oscillator to generate the
pitch of the notes. While this does
create very a stable pitch it does
create some issues.
Because the dividers are being
reprogrammed every time the pitch
for that voice changes, the leading
edge of the DCO pulse is constantly
changing in relation to the other
voices.
This is a 'feature' of the Juno-106
hardware and cannot be altered.
This is especially noticeable when
playing in Unison as all six voices
are playing the same pitch but the
start point of the voice waves will
not be the same. The audible
result of this is that random notes
can sound 'thin' with much of the
bass portion missing at certain
start point combinations. Anything
that effects the pitch of a voice
(detune, pitch bending, lfo
amount, Portamento etc) will
change the DCO wave voice start
points and change the sound.
Master Clock
The Internal Master Clock is
generated within the Kiwi106. This
clock is then used to generate the
Arpeggiator & Sequencer clocks.
The Master clock can be from
several sources.
1) Internal. The rate is set by the LFO
Rate Slider while the KeyT button is
being pressed
2) Midi Clock
3) External. An External Clock can
be fed into the 'PATCH' input on
the rear of the Juno-106. This can
then be selected to drive the
Master Clock. This clock will
count each time the Patch Input
changes from 0v to 5-15v
( Positive pulse).
The External Clock can be further
divided by 24 or 48 to suit PPQN
Factory Presets
The 128 factory presets in Group
1&2 have been made close to the
original Juno-106 presets.
Note - These can be restored if
required.
Clock Display
The internal clock will display the
rate in BPM (Beats Per Minute) on
the display whenever it is changed.
Because the display is only two
digits the Red/Green Group lights
are also used as follows
5-99 BPM
No Lights
1
00-
1
99 BPM
Green
Light
2
00-
2
99 BPM
Red
Light
The current Page Clock will show
on the KEY TRANSPOSE LED.
Pages 1-3
- While the Key
Transpose button is held the
Internal Clock rate will display on
the LED
Page 1
– The Arpeggiator Clock
will Display
Page 2
– The Sequencer Clock
will Display
Page 3
– The Pattern Clock will
Display (Arp or Seq)
Page 4 & 5
– Off
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Kiwi-106 Upgrade User Manual v204
