CR78-PGM
Programmer & Controller for Roland CR-78
Model 8-452 ver. 2.1
Copyri ght © 2017 CHD Elektroservis
All rights reserved. No part of this publication may be reproduc ed in any form without written permis sion of CHD Elektroservis .
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5. TEST OF MIDI-IN INPUT
Display shows actual status of Transport MIDI commands received from MIDI transmitter on
MIDI-IN input:
Default status (no received MIDI command) is displayed as dashes.
Symbol “CLK” is shown on left side of the display every time when Clock MIDI
command (status byte F8h) is received on MIDI input. The symbol is shown for
approx. 0,2 sec.
On right side of the display, symbol of last received
Transport MIDI command is shown. The symbol is
“STR“ for START command (status byte FAh) or
“CON“ for CONTINUE command (status byte FBh) or “STP“ for STOP command (status byte FCh).
For continue to next test, NEXT button must be pressed.
6. TEST OF EXT-CLOCK OUTPUT
Status of the output can be set with INCREMENT and DECREMENT buttons. Actual status is
shown on the display simultaneously. +5V voltage level is on EXT-CLOCK output in “ON” status and
0V voltage level is on the output in “OFF” status.
Status of the output can be checked with DC voltmeter or with help of testing circuit – see
picture:
For continue to next test, NEXT button must be pressed.
7. TEST OF WRITE OUTPUT
Status of the output can be set with INCREMENT and DECREMENT buttons. Actual status is
shown on the display simultaneously. Contacts of WRITE output are opened in ON status and the
contacts are connected in OFF status - the output works as NC type switch.
