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Connecting the AC Adaptor
1. Turn the [VOLUME] knob all the way to the left to
minimize the volume.
2. Connect the included power cord to the AC adapter.
The indicator will light once you plug the AC adaptor into a wall
outlet.
Place the AC adapter so that the side with the indicator (see
illustration) faces upwards and the side with textual information
faces downwards.
NOTE
Depending on your region, the included power cord may dier
from the one shown above.
3. Connect the AC adaptor to BK-9’s DC IN jack.
4. Plug the power cord into a power outlet.
The indicator will light once you plug the AC adaptor into a wall
outlet
NOTE
Be sure to use only the AC adaptor supplied with the unit
(PSB-1U). Also, make sure the line voltage at the installation
matches the input voltage specied on the AC adapter body.
Other AC adapters may use a dierent polarity, or be designed
for a dierent voltage, so their use could result in damage,
malfunction, or electric shock.
NOTE
If you won’t be using the BK-9 for an extended period of time,
disconnect the power cord from the electrical outlet.
Ground Terminal
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, microphones
connected to it, or the metal portions of other objects, such as guitars.
This is due to an innitesimal electrical charge, which is absolutely
harmless. However, if you are concerned about this, connect the
ground terminal (see gure below) with an external ground. When the
AC Adapter
Power cord
to an AC outlet
Indicator
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 “Information” page.
Unsuitable places for connection
• Water pipes (may result in shock or electrocution)
• Gas pipes (may result in re or explosion)
• Telephone-line ground or lightning rod (may be dangerous in
the event of lightning)
Connecting External Audio Equipment
You can connect the OUTPUT jack to keyboard amplier, stereo
system, or other stereo audio device.
1. Turn the [VOLUME] knob all the way to the left to
minimize the volume.
2. Connect the BK-9’s OUTPUT jacks to the inputs of your
external audio device.
INPUT
L R
3. You can connect the outputs of an external signal source
to the BK-9’s INPUT jacks.
4. Use the BK-9s [AUDIO IN] knob to adjust the volume.
NOTE
To prevent malfunction and equipment failure, always turn
down the volume and turn o all units before making any
connections.
6. Before You Start Using BK-9
20


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  • New owner BK 9. How to add speaker and what kind , wats ?? totally ignorant. Submitted on 7-1-2023 at 03:00

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