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Connections with a computer
By connecting the AT-90's Computer connector
to the serial port of a computer, bi-directional
transmission of music data can take place. The
method of connection will depend on the type
of computer.
Before changing the setting of the Computer
switch, make sure that the AT-90's power is
turned off.
@ Connection with an Apple Macintosh
1.
Set the Computer switch located on the back of
the AT-90 to the "Mac" position.
. Use a computer cable to connect the modem
port (or the printer
port)
of the Apple
Macintosh to the Computer connector of the AT-
90.
Computer...
POH
r-PC2
Macy | [pmi
10
La]
Á
Ey
. Using the Apple Macintosh "PatchBay" utility,
set the Interface Type (MIDI interface clock) to 1
MHz.
@ Connection with an IBM PC
1.
Set the Computer switch located on the back of
the AT-90 to the "PC-2" position.
. Use a computer cable to connect the serial port
(COM1, COM2, etc.) of the IBM PC to the
Computer connector of the AT-90.
___Computer___
PCA
r-PC-
Mac] [rior
[X]
The only types of data transmitted from the
MIDI OUT and Computer connectors are the
messages produced when you play the upper,
lower, and pedal bass keyboards,
and the
damper pedal messages.
MIDI messages for the Solo part will be trans-
mitted only when To Lower is ON.
60
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