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14
6. Before You Start Using BK-3
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 dier
from the one shown above.
3. Connect the AC adaptor to BK-3’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 specied on the AC adapter body.
Other AC adapters may use a dierent polarity, or be designed
for a dierent voltage, so their use could result in damage,
malfunction, or electric shock.
NOTE
If you won’t be using the BK-3 for an extended period of time,
disconnect the power cord from the electrical outlet.
AC Adapter
Power cord
to an AC outlet
Indicator
Connecting Headphones and
External Audio Equipment
You can connect the PHONES/OUTPUT jack to a set of Headphones as well
as keyboard amplier, stereo system, or other stereo audio device.
The internal speakers are automatically shut o when a plug is inserted
into this jack.
NOTE
When you use the PHONES/OUTPUT jack to connect keyboard
amplier, stereo system, or other stereo audio device, you can
activate the internal speakers by “Speaker Mode” parameter (p.
51).
1. Turn the [VOLUME] knob all the way to the left to
minimize the volume.
2. Connect the BK-3’s PHONES/OUTPUT jack to the set of
headphones or to the inputs of your external audio
device.
3. Use the BK-3s [VOLUME] knob to adjust the volume.
Cautions when using headphones
• To prevent damage to the cord’s internal conductors, avoid rough
handling. When using headphones, mainly try to handle either the
plug or the headset.
• Your headphones may be damaged if the volume of a device is
already turned up when you plug them in. Minimize the volume
before you plug in the headphones.
• Excessive input will not only damage your hearing, but may also
strain the headphones. Please enjoy music at a reasonable volume.
NOTE
To prevent malfunction and equipment failure, always turn
down the volume and turn o all units before making any
connections.
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