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P o w e r & C o n n e c t i o n s
● Connecting to an Apple Macintosh Series Computer
Connect the TO HOST connector of the QY70 to the
modem or printer port on your Macintosh, depending on which
port your MIDI software is using for MIDI data communication,
using a standard Macintosh 8-pin system peripheral cable. Set
the HOST SELECT switch to the “Mac” position.
You may also have to make other MIDI interface settings
on the computer side, depending on the type of software you
use (refer to your software owner’s manual). In any case the
clock speed should be set to 1 MHz.
“Mac” Cable Connections
● Connecting to an IBM-PC/AT Series Computer
Connect the TO HOST connector of the QY70 to the RS-
232C port on your IBM computer, using a standard 8-pin MINI
DIN → 9-pin D-SUB cross cable. Set the HOST SELECT switch to
the “PC-2” position.
Refer to your software owner’s manual for information on
any settings you might have to make on the computer side.
“PC-2” Cable Connections
• 8-pin system peripheral cable.
• Data transfer rate: 31,250 bps.
• 8-pin mini DIN
→
9-pin D-SUB cable. Use a “PC-1” type cable if your
computer uses a 25-pin serial port.
• Data transfer rate: 38,400 bps.
2 (HSK i)1
1 (HSK 0)2
5 (RxD-)3
MINI DIN
8-PIN
4 GND4
3 (TxD-)5
8 (RxD+)6
7 (GP i)7
6 (TxD+)8
MINI DIN
8-PIN
Modem or
printer port
TO HOST
connector
8 (CTS)1
7 (RST)2
2 (RxD)3
4 5 (GND)
8
3 (TxD) 5
MINI DIN
8-PIN D-SUB
9-PIN
RS-232C
port
TO HOST
connector