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Rear Panel
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1
POWER switch
Turns the power on/off (p. 24).
With the factory settings BK-9's power will automatically be
switched off 240 minutes after you stop playing or operating the
BK-9.
If BK-9's power has been turned off automatically, you can use the
[POWER] switch to turn the BK-9 back on. If you don't want the
power to turn off automatically, set the "Auto Off" parameter to
"OFF" (p. 143).
2
DC IN socket
Connect the supplied PSB-1U AC adapter here (p. 20).
3 MIC IN jack
This is a combo jack to which you can connect either a balanced
XLR or a balanced/unbalanced 1/4" phone jack, depending on the
cable that is connected to your microphone.
"PHANTOM +48" switch
Select "ON" this switch the BK-9 provide phantom power to "MIC IN"
jack, allowing you to use a condenser microphone. See "Connecting
a Microphone" (p. 21) for details about phantom power.
4
INPUT R & L/MONO jacks
These jacks allow you to connect the audio outputs of an external
signal source (CD/mp3 player, synthesizer, etc.).
5
AUDIO OUTPUT R & L/MONO jacks
These jacks transmit all audio signals the BK-9 generates as well as
the signals you input to the BK-9.
NOTE
If you can/want to use only one channel on your external amplifier,
connect the L/MONO jack to its input. For optimum sound quality, we
recommend working in stereo, though.
6
METRONOME OUT jack
The BK-9's metronome signals can be transmitted to the
METRONOME OUT jack. You can connect headphones (Roland RH-
series) to this jack. This is useful for a drummer, for example (as
"Click Track"). You can set the metronome volume (p . 56).
7
PEDAL HOLD jack
An optional Roland DP-series or BOSS FS-5U pedal switch
connected to this jack can be used to hold the notes of the
real-time parts (p. 22). (The MELODY INTELL part can also be
sustained in this way.) This function is also referred to as "sustain" or
"damper".
8
PEDAL EXPRESSION jack
Connect a separately available pedal expression pedal (Roland EV-
5) to this jack (p. 22).
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7
9
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10
9
PEDAL CONTROL jack
Connect a separately available pedal switch (Roland DP-series),
a separately available foot switch (BOSS FS-5U) or a separately
available expression pedal (Roland EV-5) to this jack.
The functions of this pedal are programmable and depend on the
type of pedal you connect.
See "Connecting Optional Pedals" (p. 22)
10
FC-7 PEDAL sockets
This is where you connect an optional FC-7 footswitch unit that
allows you to start, stop and select Rhythm divisions by foot. The
functions of this footswitch unit are programmable.
11
MIDI THRU/OUT/IN sockets
You can connect MIDI devices to these sockets (p. 22).
12
USB COMPUTER port
Use a USB cable to connect the BK-9 to your computer via this
connector (p. 22). A USB iPad camera connector (commercially
available) enables you to connect your iPad with your BK-9 to
enjoy dedicated applications (p. 23).
13
VIDEO OUTPUT socket
Connect this socket to the appropriate input of your TV or external
display.
NOTE
The signal format (PAL or NTSC) and aspect ratio are selectable (p. 147).
14
Ground terminal
See p. 20 for details about this terminal.
11
Rear Panel
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