CR78-PGM
Programmer & Controller for Roland CR-78
Model 8-452 ver. 2.0
Copyri ght © 2014 CHD Elektroservis
All rights reserved. No part of this publication may be reproduced in any form without written permission of CHD Elektroservis.
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DECREMENT [13] buttons are pressed shortly. If TEMPO INCREMENT [14] / DECREMENT [13]
buttons are pressed longer time, the tempo is increased / decreased continuously during the buttons
are held.
Playback can be started and stopped with help of START / STOP [12] button. Actual status is
shown on the right in upper row of display [8]. Round symbol [ ] represents STOP status; arrow
symbol [ ] represents START status.
With help of PLAY INSTR [11] button, it is possible to run up a sound generator of CR-
78 which is selected with “INSTRUMENT SELECTOR“ rotary selector on CR-78 panel.
After the PLAY INSTR [11] button is pressed, display [8] shows info about an instrument
launching [ ] for a moment. A drum instrument can be running by this way only when CR-78 is just
playing a rhythm. It is impossible when playback is stopped.
4.1.2. SYNCHRONIZATION WITH MIDI BUS
In MIDI synchronization mode, the controller receives commands from M IDI-
IN [6] input. Only common system commands CLOCK (F8h), START (FAh),
CONTINUE (FBh) and STOP (FCh) are acceptable. All others MIDI
commands are ignored. “MID” and “START“ / “STOP“ symbols are shown in upper row of display [8].
Round [ ] represents STOP status, arrow [ ] represents START status.
Actual tempo of playback derived from MIDI CLOCK commands is displayed
in upper row of display [8] in BPM (Beat per Minute) form. Info “Slow” is
displayed if the tempo is lower than 0,6 BPM or if no MIDI CLOCK
commands are received. Info “Fast” is displayed if the tempo is higher than 999,9 BPM.
With help of INCREMENT [14] and DECREMENT [13] buttons, normal []
or doubled [ ] speed of playback tempo can be chosen.
With help of PLAY INSTR [11] button, it is possible to run up a sound generator of CR-
78 which is selected with “INSTRUMENT SELECTOR“ rotary selector on CR-78 panel.
After the PLAY INSTR [11] button is pressed, display [8] shows info about an instrument
launching [ ] for a moment. A drum instrument can be running by this way only when CR-78 is just
playing a rhythm. It is impossible when playback is stopped.
START/STOP [12] button is not used in MIDI synchronization mode at all.
4.1.3. SYNCHRONIZATION WITH DIN-SYNC BUS
In DIN-SYNC synchronization mode, the controller receives
CLOCK and
RUN signals from DIN [5] input. Signals RESET and FILL are ignored.
“DIN” and “START“ / “STOP“ symbols are shown in upper row of display [8].
Round [ ] represents STOP status, arrow [ ] represents START status.
Actual tempo of playback derived from CLOCK signal is displayed in upper
row of display [8] in BPM (Beat per Minute) form. Info “Slow” is displayed if
the tempo is lower than 0,6 BPM or if no CLOCK signal is present. Info
“Fast” is displayed if the tempo is higher than 999,9 BPM.
TEMPO INCREMENT [14] / DECREMENT [13] buttons select
type of DIN bus in accordance to number of clock pulses per
quarter note (PPQN). DIN-24 (24 PPQN) type is default setting.
This type complies with most of devices equipped with DIN-SYNC output. For the others, DIN-12 (12
PPQN) or DIN-48 (48 PPQN) types can be selected. Count of clock pulses transmitted from connected
device must be found in documentation of this device and type of DIN bus must be set in accordance
with it.
