Kawai KLCS Bedienungsanleitung
KAWAI
KLCS
(Kawai Lab Communication System)
Music Teaching Lab System
Chapter 1
Introducing the Music Teaching Lab
System
The Music Teaching Lab System allows a teacher to
instruct and monitor up to 48 student workstations with
one student at each station in stereo. Any of the 48
student stations may be assigned to one of four practice
groups.
Alternately, the system can operate in “split mode”
allowing the teacher to instruct and monitor up to 48
student workstations with two students at each station in
mono. Practice groups are not available in the split mode
of operation.
A typical Music Teaching Lab System consists of the
Remote, a Hub, Headsets and Student interface boxes.
Features
Students can be assigned to work privately, in pairs, in
groups or all together. Individual students, paired
students or grouped students can be combined to form
larger groups. An external audio source such as a CD
player or teacher’s computer may be connected to the
system for playing instructional or reference material. An
audio recorder may be connected to the system for
recording lab sessions or performances. The lab controller
system is self contained and does not require additional
computer hardware or software.
Chapter 2
System Components
The KLCS components have been designed to facilitate
ease of installation and use.
Control Module – Large sliders and
buttons enable easy selection of students and adjustment
of settings. The small footprint allows the control module
to be stationed right on top of the teacher piano.
Hub – Input and output jacks expand
the function of the KLCS. Use the REC Out to send audio
from any student or group to a computer or CD recording
device. CD In lets the teacher play external music through
the system for listening examples and play-along. The
Mon. Out allows the lab to be heard in the room through
an amplified external speaker system.
Expansion Kit (option) – The basic
KLCS kit accommodates 8 students. The expansion kit
allows the addition of 8 additional students to the KLCS
lab, up to a total of 48 students (five expansion kits). The
Expansion kit consists of the expansion board and eight
individual cables, student boxes and headphones.
Headsets – The over-the-ear
headsets are durable for long life. The adjustable
microphone and earpiece positioning ensure a custom fit
for every student.
Student Box –Two headphone
connections in each student box allows 2 students to
learn at each keyboard using the split function. Computer
connections in the student box enable audio to be sent to
and from a computer at each student instrument.
Cables –The standard RJ-45 (8-
conductor telephone-type) cables are specially designed
for optimum audio transmission with minimal noise and
signal fade. The cables are 30’ in length; longer or shorter
custom lengths can be made.
******* Important Note *******
Do not connect the Hub power supply until all
other cable inter connections are made to prevent
damage to the lab system hub, as the end of the
cords may come in contact with each other or
other ground points during installation and can
cause the unit to short if the power supply is
connected.
**********************************
Chapter 3
QUICK START
The following section outlines the input and output
connectors, the front panel controls and the front panel
switches. For a more detailed description of how the
controller works, refer to Chapter 4 (OPERATION OF
THE CONTROLLER).
System Connections
The following is a description of what each input or output
connection does and what it should connect to in the lab
system. Not all of the connections are necessary to make
the system operational. For instance, an audio recorder
may not be available to record lab performances or a
small monitoring system may not be available for external
monitoring. However, a CD player may be useful for
reference purposes.
The Classroom HUB
The Hub is the center of your system. All the pieces of
your system connect to this unit. Place the Hub in a
centralized location with access to an electrical outlet.
•Remote – Connection for the Teachers Controller
Module use the supplied RJ-45 cables (8 conductor
telephone type cables), it is not recommended to
extend the cable length over 13 meters as the
cable carries digital information and longer cable
lengths will increase the resistance and can make
the unit function incorrectly.
•Teacher - Connect to “Student Box” from the
teacher’s instrument, use with the supplied RJ-45
cable (8 conductor telephone type cable).
Connect the teacher headset into the jacks on the
Interface box. Insert the blue microphone plug into
the “Student 1 Mic” jack. Insert the black
headphone plug into the “Student 1 Phones” jack.
•
POWER Switch and POWER Jack
-
The POWER
ON/OFF switch and POWER jack are located on
the right side of the Hub on the rear panel. Use the
supplied power transformer only. Other power
transformers may damage the controller and void
your warranty.
•
Mon. Out - Connect these outputs to an external
monitoring system such as a public address or
stereo system. These connections allow external
monitoring of the CD INPUT, AUX INPUT,
Teacher’s instrument, Student instruments and
Teacher’s microphone when selected.
•
Rec. Out - Connect these outputs to the inputs of a
recording device such as an audio tape recorder or
digital recorder. These connections allow recording
of the lab session to a recording device when
connected, routing audio from the teacher’s
microphone, teacher’s instrument and students’
instruments when selected.
•
Aux. In - Connect these inputs to the outputs of an
audio playback device such as an tape deck, digital
recorder, teacher’s computer or auxiliary sound
source. These connections allow monitoring of a
recording device when connected.
•CD In -
Connect these inputs to the outputs of a
CD player. Allows monitoring of a CD player when
connected.
•
USB – Reserved for future use.
The Teacher Controller Module
Volume Controls on Teachers Control Module
•TEACHERS MIC.
Controls the level of the teacher’s microphone.
•TEACHERS HEADPHONE
Controls the level of the teacher’s headphones.
•MONITOR VOLUME
Controls the audio level sent to an external
MONITOR system.
•CD/AUX INPUT
Controls the audio level received from a tape
recorder or CD player, teacher’s computer or
auxiliary input source, whichever is selected.
Switches and LEDs on Teacher Control
Remote
•Student Selector (labeled 1-8)
Allows any combination of individual students,
paired students or grouped students to be selected
together. Any students selected to the selector row
can hear or communicate with the instructor. Any
selected students, whether individual students,
paired students or grouped students can hear each
others instruments and talk to each other.
•Bank
Selects the bank of students that can be controlled.
•CD INPUT
Selects the CD In.
•AUX INPUT
Selects the Aux. In.
•PAIRS
When selected, assigns all students to groups of 2
(1 & 2, 3 & 4, 5 & 6 etc.). One or more pairs of
students can be selected. Only selected pairs can
hear or communicate with the instructor. PAIRS
overrides GROUPS mode.
•GROUPS
Students can be assigned to only one of four
GROUPS: A, B, C, or D. Students assigned to a
group can hear only members of their group unless
more than one group is selected. To assign a
student to a group, press and hold the desired
GROUPS button. While holding the GROUPS
button, press the buttons of the students you wish
to assign. An LED will illuminate for each
assignment. To unassign a student to a group,
while holding the desired GROUPS button, press
the buttons of the students you wish to unassign.
The associated LED will turn off.
To change a group assignment, press and hold the
new group’s Assign GROUPS button, then change
the student’s assignment by pressing the student’s
button. The illuminated LED will follow the new
assignment. To clear all settings including
GROUPS assignments, press the ALL and MUTE
buttons simultaneously.
•BROADCAST
Routes the audio from any selected students, and
the teacher’s microphone if selected, to all
students.
•MIC
Press to activate the teacher’s microphone.
•All
All students can hear only the teacher’s instrument,
their own instrument, and teacher’s microphone
when selected. (The teacher will not hear student
instruments in this mode.) All overrides PAIRS and
GROUPS mode.
•MUTE
This mutes all the student microphones on the
headsets.
Student Boxes
The Student Boxes connect the instruments to the Hub.
•Stereo Keyboard (cable with ¼” plug) connects to
the instrument’s headphone output jack.
•To Hub connects the student box to the hub with
the supplied RJ-45 cables (8 conductor telephone
type cables).
•From Computer Audio Out 1/8” jack used to send
line level audio from a computer or playback device
to the students headset.
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