88
Appendices
About the MIDI implementation
MIDI allows a variety of messages to be exchanged between
instruments, but it is not necessarily the case that all types of
message can be exchanged between any two MIDI devices.
Two devices can communicate only if they both use the types
of messages that they have in common.
Thus, every owner’s manual for a MIDI device includes a
“MIDI Implementation Chart.” This chart shows the types of
message that the device is able to transmit and receive. By
comparing the MIDI implementation charts of two devices,
you can tell at a glance which messages they will be able to
exchange. Since the charts are always of a uniform size, you
can simply place the two charts side by side.
fig.09-030
Error Messages
If you attempt an incorrect operation or if an operation could
not be executed, the display will indicate an error message.
Refer to this list and take the appropriate action.
fig.09-080d
●
The memory backup battery inside the GT-8 has run
down. (This message will appear when the power is
turned on.)
❍
Replace the battery as soon as possible. For battery
replacement, please contact a nearby Roland service
center or your dealer.
fig.09-090d
●
There is a problem with the MIDI cable connection.
❍
Check to make sure the cable has not been pulled out or
is not shorted.
fig.09-100d
●
You’ve attempted to switch patches by rotating the
PATCH/VALUE dial, but the Dial function (p. 73) is set
to “VALUE Only.”
❍
If you want to be able to switch patches using the
PATCH/VALUE dial, set the Dial function to “PATCH
No.& VALUE.”
fig.09-110d
●
More MIDI messages were received in a short time than
could be processed correctly.
Transmit
Function
Fold here
MIDI Device A
MIDI Device B
Recognized
Remarks
A separate publication titled “MIDI Implementation” is
also available. It provides complete details concerning the
way MIDI has been implemented on this unit. If you should
require this publication (such as when you intend to carry
out byte-level programming), please contact the nearest
Roland Service Center or authorized Roland distributor.
GT-8_e.book 88 ページ 2007年6月29日 金曜日 午後3時55分