Roland V-4EX, Owner'S Manual

Page: 9 / 64

9
Connecting the AC Adapter
Connect the AC adapter as shown in the figure below.Place the AC adaptor so the side with the indicator (see illustration) faces
upwards and the side with textual information faces downwards.
* The indicator will light when you plug the AC adaptor into an AC outlet.
fig.connect-PSB1U.eps
Indicator
About the Cord Hook
To prevent the inadvertent disruption of power to your unit (should the plug be pulled out accidentally), and to avoid applying
undue stress to the DC IN connector, anchor the power cord using the cord hook, as shown in the illustration.
fig.cord-hook.eps
Caution Regarding the Power Supply
Depending on the circumstances of a particular setup, you may experience a discomforting sensation or perceive that the surface
feels gritty to the touch when you touch this device or the metal portions of a video camera, monitor, or other devices connected
to it. 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) to 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.
fig.earth-terminal.eps
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 dangerous in the event of lightning)
About the Power Supply