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MIDI CONFIGURATION
CONFIGURAZIONE MIDI
Keyboard
Sound Module
IN
IN
OUT
IN A
OUT A
OUT B
CV 1
Sustain / A
Control pedal
(optional)
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Sound Module
IN
Sound Module
THRU
IN
Effect Unit
IN
Effect Unit
THRU
IN
OUT C
OUT D
sw B / C
B / C Footswitch
Sustain / A
(optional)
Footswitch
O
N
S
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INSIDE THE SL-2001
The SL-2001 is very unique among MIDI keyboards. All of its powerful master controller functions are available from its own
keyboard, or from any external MIDI keyboard. In addition, the SL-2001 also functions as a very versatile MIDI switcher,
router, and processor, which eliminates the need for many outboard MIDI devices.
IN A
IN B
IN C
IN D
The diagram above depicts the internal structure of the instrument. There are four MIDI inputs and four MIDI outputs. Eight
independent MIDI data processors link the keyboard and MIDI inputs to the MIDI outputs. Each processor can be pro-
grammed to receive data only from a specific region of the master keyboard or external keyboards; it is therefore convenient
to refer to the processors as ZONE 1 through ZONE 8. MIDI information from
two or more zones can be merged (combined) into the same MIDI output. If desired, all eight zones may be merged into
the same output, although the inherent speed limitation of the MIDI format may result in sluggish response.The configura-
tion of the zones is programmable for every preset on the SL-2001. In general, each zone will be associated with one MIDI
synthesizer connected to the MIDI outputs. In special cases, several zones will be processing MIDI data which will all be
merged to the same MIDI output and received by a single sound module.
ZONES
The SL-2001 keyboard will send MIDI data to as many as eight instruments simultaneously (the instruments may be physi-
cally separate devices, or different MIDI channels of a multi-channel sound module). Each instrument receives MIDI data
from one of the eight zones. The sophisticated MIDI processing performed by the zone allows very precise control over the
sound and response of each instrument. The function of all eight zones is independently programmable in each of the sixty-
four SL-2001 presets.
The diagram above illustrates the internal structure of a zone. A MIDI message from a SL-2001 input port is received by all
zones connected to that input. If the zone is not active (front panel ZONE switch is off), no further processing occurs. If the
zone is not bypassed, an incoming message is checked to see that its channel matches the channel programmed into the
zone's Channel Filter. If the channel does not match, the zone ignores the message.
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English
Z
Z
Z
Z
Z
Z
Z
Z
Control sliders
O
O
O
O
O
O
O
O
Switch inputs
N
N
N
N
N
N
N
N
Voltage inputs
E
E
E
E
E
E
E
E
Wheels
1
2
3
4
5
6
7
8
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OUT A
OUT B
OUT C
OUT D
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