Roland Compurhythm CR-78 User Manual

® MEASURE — Measure
Selector
This knob selects the variation cycle
when you want to make variations
automatically. If you set it at "2",
a variation in rhythm occurs once
every two measures in the second
measure.
Set it at "16" and you will have a
normal rhythm pattern for 15 meas¬
ures and then a variation in the 16th
measure.
® MANUAL/AUTO SELECTION
SWITCH
When you want automatic variations
in rhythm, switch on to AUTO. For
manual operation, select MANUAL
© MANUAL BUTTON
When you want to make variations
manually, use this button. During
performance, no matter when you
press the button, with the function¬
ing computer, a variation occurs in
the following measure.
© CANCEL VOICE - Cancel
Button
These buttons cancel the indicated
instrument sounds when using the
per-set rhythms.
..PROGRAMMER..
With the CR-78, you can create your
own rhythmic patterns and have
them memorized by the micro-com¬
puter circuits.
© TRACKS 1, 2, 3, 4
The diodes with light up in synchro¬
nization with the programmed
rhythm.
© INSTRUMENT SELECTOR
This knob selects the instrument
voice you want.
*At the ACCENT position, rhythmic
accents can be programmed.
© MEMORY — PLAY — ALL
Program Switch
MEMORY: This position it is used
for programming a pat¬
tern or for clearing one
track.
PLAY: This position is used for
reproducing the memo¬
rized rhythmic patterns.
Aside from when not
programming rhythmic
patterns, always the swit¬
ch at play.
ALL: When you want to erase
all four tracks of the pro¬
grammed rhythms, set
it to this position the
Clear Button © ,
© CLEAR — Clear Button
This is used for erasing the memo¬
rized rhythms.
© PROGRAM RHYTHM Buttons
The memory number selection but¬
tons are used for rhythm program¬
ming or for using the rhythms you
have already programmed.
The order of priority is shown in the
diagram below.
I It m IV
REAR PANEL
® OUTPUT (Output Jack)
Use the jack with the input imped¬
ance which matches the amplifier or
instrument being used.
(|) VARIATION
This jack is for using the pedal switch
(DP-1,DP-2) to start a variation rhythm
© START/STOP
This jack is for using the pedal switch
(DP-1, DP-2) to start or stop a rhythm.
© TRIG OUT
This jack is for the output of a trigger
pulse with the same cycle as the
rhythm.
EXAMPLE
By connecting CR-78 to a sequencer
or JUPITER-4, the production of a
same cycle will make it possible to
control the synthesizer.
© 8”, 16”. COMBI
This switch selects the way the pulse
is generated from the TRIGGER OUT
© jack.
°8 beat: produces a pulse eight times
in a measure.
°16 beat: produces a pulse sixteen
times in a measure.
“Combination: changes in 'pattern
according to the rhythm.
"The pulse of the output of the bass
drum, and the high bongo combin¬
ed is produced.
© WRITE
This jack is for connecting the ac¬
cessory TS-1 (or the optional DP-2)
used for programming rhythmic pat¬
terns.
© EXT CLOCK
By connecting an external clock
pulse to this jack, you can control
the tempo of the CR-78 by means of
an external instrument.
By supplying a clock of 48 counts
per measure to the CR-78 from an
external source the CR-78 will be
completely synchronized to it.
*At this point TEMPO CONTROL
and the TEMPO PILOT LAMP on the
front panel have no relations to this
function.
-.EXTERNAL CLOCK PULSE»
PROGRAM Switch at PLAY
Voltage: + 5 — + 15V
minimum pulse width: 5 ms
frequency: 5 Hz — 100 Hz
‘Synchronization takes place at 48
counts per measure.

Roland Compurhythm CR-78 Specifications

Power

trigger pulse out	OFF: 0V/ ON:+15V pulse
sound source ext. clock	OFF:0V/ ON: +5 - +15V pulse, min. 5ms width
power consumption	13W

Weight and Dimensions

dimensions	300(W) X 280(D) X 205(H)mm
dimensions (inches)	11.8"(W) X 11.0”(D) x 8.1 "(H)
net weight	5.5 kg