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Before you start using the JM-8

VIMA JM-8

Connecting the AC adapter

Note:

To prevent malfunction and/or damage to speakers or

other devices, always turn down the volume, and turn off the
power on all devices before making any connections.

(1) Connect the supplied AC adapter and AC cord.

The indicator will light when you plug the AC adapter
into an AC outlet.

Place the AC adapter so the side with the indicator
(see illustration) faces upwards and the side with tex-
tual information faces downwards.

Note:

Depending on your region, the included power cord

may differ from the one shown above.

(2) Connect the AC adapter to the DC IN jack on the

rear panel.

To prevent inadvertent disruption of power to your
unit (should the plug be pulled out accidentally), and
to avoid applying undue stress to the AC adaptor
jack, anchor the power cord using the cord hook, as
shown in the illustration.

(3) Plug the power cord into a power outlet.

Note:

Be sure to use only the AC adapter supplied with the

unit (PSB-7U). Also, make sure the line voltage at the
installation matches the input voltage specified on the AC
adapter’s body. Other AC adapters may use a different
polarity, or be designed for a different voltage, so their use
could result in damage, malfunction, or electric shock.

Note:

If you won’t be using the JM-8 for an extended

period of time, disconnect the power cord from the electri-
cal outlet.

Ground terminal

Depending on the cir-
cumstances of a partic-
ular setup, you may
experience a discom-
forting sensation, or
perceive that the surface feels gritty to the touch when
you touch this device, microphones connected to it, or
the metal portions of other objects, such as guitars. This
is due to an infinitesimal electrical charge, which is
absolutely harmless. However, if you are concerned
about this, connect the ground terminal (see figure)
with an external ground. When the unit is grounded, a

slight hum may occur, depending on the particulars of
your installation. If you are unsure of the connection
method, contact the nearest Roland Service Center, or
an authorized Roland distributor, as listed on the “Infor-
mation” page.

■

Unsuitable places for connection

• Water pipes (may result in shock or electrocution)
• Gas pipes (may result in fire or explosion)
• Telephone-line ground or lightning rod (may be dan-

gerous in the event of lightning)

Turning the power on/off

Once the connections have been completed, turn on the
power to your various devices in the order specified. By
turning on devices in the wrong order, you risk causing
malfunction and/or damage to speakers and other
devices.

Turning the power on

(1) Switch off the external amplification system.

(2) Turn the [MASTER VOL] knob all the way to the left

to minimize the volume.

(3) Press the [POWER] switch.

The power will turn on, several images will appear in
the JM-8’s screen, and then the main page will
appear.

After a brief interval, the JM-8 will be ready to pro-
duce sound.

Note:

This unit is equipped with a protection circuit. A

brief interval (a few seconds) after power up is required
before the unit will operate normally.

(4) Switch on your amplification system or connect a

pair of headphones (see p. 19).