10 MM6/MM8 Owner’s Manual
Setting Up
Be sure to do the following BEFORE turning
on the power.
Make sure that the [STANDBY/ON] switch of the
instrument is set to STANDBY.
Plug the adaptor’s DC plug into the DC IN jack on
the instrument’s rear panel.
Plug the AC adaptor into a convenient AC wall out-
let.
Wrap the DC output cable of the adaptor around the
cable clip (as shown above) to prevent accidental
unplugging of the cable during operation.
Avoid tightening the cord more than necessary or pull-
ing on the cord strongly while it is wrapped around the
cable clip to prevent wear on the cord or possible break-
age of the clip.
Make all necessary connections, as
described below, BEFORE turning the power
on.
Since the MM6/MM8 has no built-in speakers, it must
be connected to an external amplifier and speakers,
headphones, or other sound output device.
You can connect the instrument’s USB terminal to the
USB terminal of a computer to allow transfer of perfor-
mance data and song files between the two (page 77).
To use the USB data-transfer features you’ll need to do
the following:
• First, make sure the POWER switch on the MIDI
device is set to OFF, then use a USB cable to con-
nect the MIDI device to the computer.
• Install the USB-MIDI Driver on your computer.
You can download the proper USB-MIDI driver from
our website:
http://www.global.yamaha.com/download/usb_midi/
Refer to the instructions included with the USB-MIDI
Driver download package for the USB-MIDI Driver
installation procedure.

Power Supply Connections

Cable clip

• Use the specified adaptor (PA-5D, PA-150, or an equivalent
recommended by Yamaha) only. The use of other adaptors
may result in irreparable damage to both the adaptor and the
instrument.
•Unplug the AC Power Adaptor when not using the instrument,
or during electrical storms.
CAUTION
(PA-5D adaptor) (PA-150 adaptor)
MM6
MM8

Using Headphones

Connecting to a Computer (USB Terminal)

• Do not use headphones at a high volume for an extended period
of time. Doing so may cause hearing loss.
• When connecting the instrument to external equipment make
sure that the power to all external devices is turned off to prevent
possible electrical shock or equipment damage. Also be sure to
turn any volume controls on external equipment to minimum
when making connections to prevent possible speaker damage.
CAUTION
•USB cables can be purchased at some musical instrument stores, com-
puter stores, and similar retail outlets.
NOTE