Yamaha Clavinova CLP-970A Owner's Manual page 61

2.
Using a MIDI interface and the Clavinova's MIDI connectors
Connection
Use a MIDI interface device to connect a computer to the Clavinova using special MIDI cables.
THRU
Mac MIDI
PC-1 PC-2
HOST SELECT
MIDI MIDI
OUT IN
MIDI interface
Windows
Clavinova HOST SELECT switch setting
Set the Clavinova HOST SELECT switch to "MIDI."
Clavinova
MIDI
OUT IN
MIDI
MIDI
IN
OUT
MIDI
MIDI
IN
OUT
MIDI interface
Macintosh
Connections
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CLP-970A