2. Important Notes
6
In addition to the items listed under “Using the unit safely” on p. 4, please read and observe the following:
Power Supply
•  Do not connect this unit to same electrical outlet 
that is being used by an electrical appliance that 
is controlled by an inverter or a motor (such as a 
refrigerator, washing machine, microwave oven, or 
air conditioner). Depending on the way in which 
the electrical appliance is used, power supply noise 
may cause this unit to malfunction or may produce 
audible noise. If it is not practical to use a separate 
electrical outlet, connect a power supply noise lter 
between this unit and the electrical outlet.
•  The AC adaptor will begin to generate heat after 
long hours of consecutive use. This is normal, and is 
not a cause for concern.
•  To prevent malfunction and equipment failure, 
always make sure to turn o the power on all your 
equipment before you make any connections.
•  With the factory settings, the BK-9 will 
automatically be switched o 30 minutes after you 
stop playing or operating the unit. If you don’t want 
the unit to turn o automatically, change the “AUTO 
OFF” setting to “OFF” as described on p. 143.
NOTE
The settings you were editing will be lost when the 
unit is turned o. If you want to keep your settings, 
you must save your settings before turning the 
unit o.
Placement
•  Using the unit near power ampliers (or other 
equipment containing large power transformers) 
may induce hum. To alleviate the problem, change 
the orientation of this unit; or move it farther away 
from the source of interference.
•  This device may interfere with radio and television 
reception. Do not use this device in the vicinity of 
such receivers.
•  Noise may be produced if wireless communications 
devices, such as cell phones, are operated in the 
vicinity of this unit. Such noise could occur when 
receiving or initiating a call, or while conversing. 
Should you experience such problems, you should 
relocate such wireless devices so they are at a 
greater distance from this unit, or switch them o.
•  Do not expose the unit to direct sunlight, place 
it near devices that radiate heat, leave it inside 
an enclosed vehicle, or otherwise subject it to 
temperature extremes. Excessive heat can deform 
or discolor the unit.
•  When moved from one location to another where 
the temperature and/or humidity is very dierent, 
water droplets (condensation) may form inside 
the unit. Damage or malfunction may result if you 
attempt to use the unit in this condition. Therefore, 
before using the unit, you must allow it to stand 
for several hours, until the condensation has 
completely evaporated.
•  Do not allow objects to remain on top of the 
keyboard. This can be the cause of malfunction, 
such as keys ceasing to produce sound.
•  Depending on the material and temperature of the 
surface on which you place the unit, its rubber feet 
may discolor or mar the surface. 
You can place a piece of felt or cloth under the 
rubber feet to prevent this from happening. If you 
do so, please make sure that the unit will not slip or 
move accidentally.
•  Do not put anything that contains water on this 
unit. Also, avoid the use of insecticides, perfumes, 
alcohol, nail polish, spray cans, etc., near the unit. 
Swiftly wipe away any liquid that spills on the unit 
using a dry, soft cloth.
Maintenance
•  For everyday cleaning wipe the unit with a soft, 
dry cloth or one that has been slightly dampened 
with water. To remove stubborn dirt, use a cloth 
impregnated with a mild, non-abrasive detergent. 
Afterwards, be sure to wipe the unit thoroughly 
with a soft, dry cloth.
•  Never use benzine, thinners, alcohol or solvents of 
any kind, to avoid the possibility of discoloration 
and/or deformation.
Additional Precautions
•  Unfortunately, it may be impossible to restore the 
contents of data that was stored on a USB memory 
once it has been lost. Roland Europe assumes no 
liability concerning such loss of data.
•  Use a reasonable amount of care when using the 
unit’s buttons, sliders, or other controls; and when 
using its jacks and connectors. Rough handling can 
lead to malfunctions.
•  Never strike or apply strong pressure to the display.
•  When disconnecting all cables, grasp the connector 
itself—never pull on the cable. This way you will 
avoid causing shorts, or damage to the cable’s 
internal elements.
•  To avoid disturbing others nearby, try to keep the 
unit’s volume at reasonable levels. You may prefer 
to use headphones, so you do not need to be 
concerned about those around you.
•  When you need to transport the unit, package it 
in the box (including padding) that it came in, if 
possible. Otherwise, you will need to use equivalent 
packaging materials.
•  Do not apply undue force to the music stand while 
it is in use.
•  Use only the specied expression pedal (EV-
series; sold separately). By connecting any other 
expression pedals, you risk causing malfunction 
and/or damage to the unit.
•  Some connection cables contain resistors. Do not 
use cables that incorporate resistors for connecting 
to this unit. The use of such cables can cause the 
sound level to be extremely low, or impossible 
to hear. For information on cable specications, 
contact the manufacturer of the cable.
•  The sensitivity of the D Beam controller will change 
depending on the amount of light in the vicinity of 
the unit. If it does not function as you expect, adjust 
the sensitivity as appropriate for the brightness of 
your location.
•  When opening/closing the USB memory cover, 
please be careful not to get your ngers pinched 
between the movable part and the panel. In places 
where small children are present, make sure that an 
adult provides supervision and guidance.
Storage devices that can be connected 
to the BK-9’s USB MEMORY port
•  The BK-9 allows you to connect commercially 
available USB Flash memory. You can purchase 
such devices at a computer store, a digital camera 
dealer, etc.
•  Though external hard disks with a capacity in 
excess of 2TB can be used, please bear in mind that 
the BK-9 can manage a maximum of 2TB. (FAT-32 
formatted storage devices can be used right away.)
•  Use USB memory sold by Roland (M-UF-series). 
We cannot guarantee operation if any other USB 
memory is used.
Before using external USB storage 
devices
•  Carefully insert the USB memory all the way in—
until it is rmly in place.
•  USB memories are constructed using precision 
components; handle the storage devices carefully, 
paying particular note to the following.
•  To prevent damage to the USB memory from 
static electricity, be sure to discharge any static 
electricity from your own body before handling 
the cards.
•  Do not touch or allow metal to come into 
contact with the contact portion of the USB 
memory.
•  Do not bend, drop, or subject cards to strong 
shock or vibration.
•  Do not keep cards in direct sunlight, in closed 
vehicles, or other such locations.
•  Do not allow USB memories to become wet.
•  Do not disassemble or modify the USB memory.
•  Never touch the terminals of the USB memory. Also, 
avoid getting the terminals dirty.
•  When connecting a USB memory, position it 
horizontally with the BK-9’s USB MEMORY port 
and insert it without using excessive force. The 
USB MEMORY port may be damaged if you use 
excessive force when inserting a USB memory.
•  Do not connect or disconnect a USB drive while it 
is being rear from, or written to (i.e., while the USB 
ash access indicator blinks).
•  Do not insert anything other than a USB memory 
(e.g., wire, coins, other types of device) into the USB 
MEMORY port. Doing so will damage the BK-9’s USB 
MEMORY port.
•  Never connect your USB memory to the BK-9 via a 
USB hub.
•  Do not connect or disconnect a USB drive while it 
is being rear from, or written to (i.e., while the USB 
ash access indicator blinks).
Liability and copyright
•  Recording, duplication, distribution, sale, lease, 
performance, or broadcast of copyrighted material 
(musical works, visual works, broadcasts, live 
performances, etc.) belonging to a third party in 
part or in whole without the permission of the 
copyright owner is forbidden by law.
•  Do not use this unit for purposes that could 
infringe on a copyright held by a third party. Roland 
assumes no responsibility whatsoever with regard 
to any infringements of third-party copyrights 
arising through your use of this unit.
•  Roland, SuperNATURAL are either registered 
trademarks or trademarks of Roland Corporation in 
the United States and/or other countries.
•  Company names and product names mentioned 
in this document are trademarks or registered 
trademarks of their respective owners.
•  MPEG Layer-3 audio compression technology 
is licensed from Fraunhofer IIS Corporation and 
THOMSON Multimedia Corporation.
•  Copyright © 2003 by Bitstream, Inc. All rights 
reserved. Bitstream Vera is a trademark of Bitstream, 
Inc.
•  MMP (Moore Microprocessor Portfolio) refers to a 
patent portfolio concerned with microprocessor 
architecture, which was developed by Technology 
Properties Limited (TPL). Roland has licensed this 
technology from the TPL group.