Sync 24 & clock mode – Kenton Pro-Solo mk1 User Manual
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The PRO SOLO has a sync 24 & clock pulse mode. This feature allows you to sync a drum
machine or synthesiser arpeggiator to MIDI clock.
To enter sync mode, you must power on the PRO SOLO whilst holding the INC button, the
display will read SYC until you release the button and will then say
( which means K ) .
When in this mode, the signal levels are all either 0 or 5 volts and the outputs will come
from the following jacks:-
SYNC 24 clock pulses = CV jack
STOP/START control = GATE jack
CLOCK PULSE = AUX jack
Sync 24 control is usually via a 5 pin DIN connector - Kenton can supply an adaptor lead to
convert the jack outputs to a DIN connector. Connect this lead so that the white lead
goes to the gate socket and the red lead goes to the CV socket.
For those of you who want to make your own lead, the tip of the CV jack should connect
to pin 3 of the DIN plug, the tip of the GATE jack should connect to pin 1 of the DIN plug
and the bodies of both jacks should connect to pin 2 of the DIN plug. Pins 4 & 5 of the DIN
plug should remain unconnected.
There are three menu options from which you can choose in Sync mode. These are
selected in the usual manner by using the SELECT button to move through menu items,
and then by using INC & DEC to edit them. Store also functions in the usual manner.
K - Clock pulse divide ratio - ( values d2, d4 & 2 to 24, default: 2 )
- sets the ratio of MIDI clocks to output pulses from the clock pulse output.
d2 – special drum machine mode – outputs 24 cpqn – used for many drum machines
d4 – special drum machine mode – outputs 48 cpqn – for Linn & Oberheim drum machines
N.B. Some drum machines use other values e.g. the Roland CR78 uses 12 cpqn (div ratio
2)
If set to 2, there will 12 pulses from the clock pulse output for every 24 MIDI clocks = 12
cpqn
If set to 24, there will be 1 pulse from the clock pulse output for every 24 MIDI clocks = 1
cpqn
(Note there are 24 MIDI clocks per quarter note)
Below is a table of values you can set the divide ratio to in order to obtain a clock pulse
at various musical time intervals:-
Note type
Divide ratio
CPQN (clocks per quarter note)
Crotchets
(quarter notes) 24 1
Crotchet triplets 16
Quavers
(eighth notes) 12 2
Quaver triplets 8
Semiquavers (sixteenths)
6 4
Semiquaver triplets 4 6
Demisemiquavers 3 8
SYNC 24 & CLOCK MODE