Kurzweil K2000R User manual

KURZWEIL
KZCKXVKZOOOR
SERVICE MANUAL
KURZWEIL
Kurzweil is aproduct line of Young Chang America, Inc.
Young Chang America
13336 Alondra Blvd.
Cerritos, CA 90701-2205
P/N 92002000

techwarn.doc 12/22/92
!** IMPORTANT INFORMATION **!
READ THIS PAGE BEFORE PROCEEDING!
THERE ARE NO USER SERVICEABLE COMPONENTS OR ASSEMBLIES INSIDE
THIS INSTRUMENT.
This service manual is written for use by qualified service
personnel only. Possession of this service manual does not
qualify its owner or user as acompetent service technician on
this product.
Any attempts to repair, modify, adjust or service any internal
component or assembly by non-approved personnel may void all
existing warranties on this instrument and any installed options.
Only the Kurzweil Service Department has the authority to make
the determination as to who is a qualified technician.
For further information, contact the Kurzweil National Service
Manager at [phone].

EXPLANATION OF GRAPHIC SYMBOLS:
Hie U^tning flash wiA the aiiowhead symbol, within an
equiBateral triangle, is intended to alert the user to the presence
ofuninsulated "dangerous voltage" wiithin the products
enclosure that may be ofsufi&cient magnitude to constitute a
risk ofelectric shock to persons.
The exclamation point within an equilateral traiagle is intended
to alert the user to the presence ofimportant operating and
maintenance (servicii^ instructions in the literature
accompanying the product
INSTRUCTIONS
INSTRUCTIONS PERTAINING TO THE RISK OP FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS
WARNING -When using electric products, basic precautions should always be followed, including the following:
1. Read all of the Safety and Installation Instructions and Explanation of Graphic Symbols before using the
product
.
2. This product must be grounded. If it should malfunction or breakdown, grounding provides apath of least
resistance for electric current to reduce the risk of electric shock. This product is equipped with apower
supply cord having an equipment-grounding conductor and agrounding plug. The plug must be plugged into an
appropriate outlet which is properly installed and grounded in accordance with all local codes and ordinances.
DANGER -Improper connection of the equipment-grounding conductor can result in arisk of electric shock. Do
not modify the plug provided with the product -if it will not fit the outlet, have aproper outlet installed
by aqualified electrician. Do not use an adaptor which defeats the function of the equipment-grounding
conductor. If you are in doubt as to whether the product is properly grounded, check with aqualified
serviceman or electrician.
3. WARNING -this product is equipped with an AC input voltage selector. The voltage selector has been
factory set for the main supply voltage in the country where this unit was sold. The setting of the voltage
selector can be seen just to the right of the power input receptacle on the back of the product. Changing the
voltage selector may require the use of adifferent power supply cord or attachment plug, or both. The reduce
the risk of fire or electric shock, refer servicing to qualified maintenance personnel,
4. Do not use this product near water -for example, near abathtub, washbowl, kitchen sink, in awet
basement, or near aswimming pool, or the like.
5. This product should only be used with astand or cart that is recommended by the manufacturer.
6. This product, either alone or in combination with an amplifier and speakers or headphones, may be capable
of producing sound levels that could cause permanent hearing loss. Do not operate for along period of time
at ahigh volume level or at alevel that is uncomfortable. If you experience any hearing loss or ringing in
the ears, you should consult an audiologist.
7. The product should be oriented such that its location or position does not interfere with its proper
ventilation
.
8. The product should be located away from heat sources such as radiators, heat registers, or other products
that produce heat.
9. The product should be connected to apower supply only of the type described in the operating instructions
or as marked on the product.
10. This product may be equipped with apolarized line plug (one blade wider than the other). This is a
safety feature. If you are unable to insert the plug into the outlet, contact an electrician to replace your
obsolete outlet. Do not defeat the safety purpose of the plug.
11. The power supply cord of the product should be unplugged from the outlet when left unused for along
period of time. When unplugging the power supply cord, do not pull on the cord, but grasp it by the plug.
12. Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through
openings.
13. The product should be serviced by qualified service personnel when:
A. The power supply cord or the plug has been damaged; or
B- Objects have fallen, or liquid has been spilled into the product; or
C. The product has been exposed to rain; or
D. The product does not appear to be operating normally or exhibits amarked change in performance; or
E. The product has been dropped, or the enclosure damaged.
14. Do not attempt to service the product beyond that described in the user maintenance instructions. All
other servicing should be referred to qualified service personnel.
15. WARNING -Do not place objects on the product's power supply cord, or place the product in aposition
where anyone could trip over, walk on, or roll anything over cords of any type. Do not allow the product to
rest on or be installed over cords of any type. Improper installations of this type create the possibility of
afire hazard and/or personal injury.
SAVE THESE INSTRUCTIONS
RISK OF ELECTRIC S11C>CK
DONOT OPEN A
TO imoTHE REK OF E1£ZTR]C SH0(^
DO NOT REMOVE THE BOTTOM.
NO USER SERVICEABLE B\RTS INSDE
REFER SRVDNG TO CHJAUFED SERVICE PERSCJ4NEL
A
A
IMPORTANT SAFETY AND INSTALLATION
WARNING. POT 11/03/92
ii

radiotv.doc 12/ZH32
RADIO AND TELEVISION INTERFERENCE
Warning: Changes or modifications to this instrument not expressly approved by Young
Chang could void your authority to operate the instrviment.
Important: When connecting this product to accessories and/or other equipment use only
high quality shielded cables. The cable (s) supplied with this instrument must be used.
Note: This instrximent has been tested and found to comply with the limits for aClass B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in aresidential
installation. This instrument generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference
will not occur in aparticular installation. If this instrument does cause harmful
interference to radio or television reception, which can be determined by turning the
instrument off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the instrument and the receiver.
•Connect the instrument into an outlet on acircuit different from the
•If necessary consult your dealer or an experienced radio/television technician
for additional suggestions. You may find the following booklet prepared by
the Federal Communications Commission to be helpful:
”How To Identify and Resolve Radio-TV Interference Problems**
This booklet is available from the U.S. Government Printing Office, Washington,
D.C. 20402, Stock No. 004-000 345-4.
NOTICE
This apparatus does not exceed the Class Blimits for radio noise emmissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.
AVIS
Le present appareil numerique n'emet pas de bruits radioelectriques depassant les
limites applicables aux appareils numeriques de la class Bprescrites dans le Reglement
sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.
©1992 All rights reserved. Kurzweil is aproduct line of Young Chang Akki Co., LTD.
Kurzweil, K2000, and MIDIScope are trademarks of Young Chang Akki Co., LTD. The names
Akai, SIOOO, Apple, Macintosh, DX7, IBM, DOS, MS-DOS, and Roland are registered
trademarks of the respective companies using these names
.
This manual is current with K2000 version 1.00 software.
Product features and specifications are subject to change without notice.

contents.doc 01/04/93 K2000/K2000R TABLE OF CONTENTS
NOTE: Any sections not specifically identified with the K2000 or the K2000R apply to
both units
.
SPECIFICATIONS 1
GLOSSARY 5
1
SETUP 1
K2000 OPERATIONAL CHECKOUT 5
K2000 POWER-UP CHECK 11
K2000R OPERATIONAL CHECKOUT 17
2
K2000 DISASSEMBLY/ACCESS 1
K2000R DISASSEMBLY/ACCESS 7
3
K2000 MAINTENANCE 1
K2000/K2000R TROUBLESHOOTING 7
DIAGNOSTICS 11
K2000R MAINTENANCE 47
4
OPTIONS A
TECHNICAL THEORY 1
5
K2000 PARTS LIST 1
K2000R PARTS LISTS 9
6
K2000/K2000R WIRING GUIDE 1
7
SCHEMATICS/DIAGRAMS
00
IV

SECTION 12000SPBC.DOC 01/03/93
1.0 K2000 SPECIFICATIONS
1.1 K2000 FEATURES
•61-key spring return synth action keyboard
•Sends and receives mono (channel) pressure; receives poly pressure
•Spring loaded Pitch Wheel
•Full throw Modulation Wheel, programmable
•Volume Slider
•Programmable Controller Slider
•Two programmable switch pedal inputs
•Programmable continuous controller input
•240 X64-pixel backlit graphic display with adjustable contrast
•3.5 inch floppy disk drive, for DD or HD disks, DOS compatible
•MIDI IN, THRU and OUT
•24-note polyphony with dynamic voice allocation
•Multi-timbral, for multi-track sequencing and recording
•199 factory preset programs, and 100 factory preset setups
•Up to 3layers per program, up to 32 layers for programs on drum channel
•3- zone setups transmit on 3MIDI channels with independent programmable
controls
•15,000 note scratchpad sequencer for recording from keyboard or via MIDI;
loads and plays MIDI Type 0sequences
•Easy-to-use programming interface including soft buttons. Alpha Wheel, and
alphanumeric pad
•8Megabytes of 16-bit sample ROM, including acoustic instrumental sounds,
waveforms, and noise
•20 KHz maximum bandwidth
•Optional stereo sampler with analog and digital inputs
•Sound ROM expandable to atotal of 24 Megabytes
•Sound sample playback
•4SIMM sockets for optional sample RAM -up to 64 Megabytes
TM
•Akai SIOOO sample disk compatibility
•Two 1/4 inch mixed audio outputs (stereo pair)
•Four 1/4 inch audio outputs programmable as 2stereo pairs or as four
separate outputs, with insert capability for effects patching
•Stereo headphone jack
•128 KB battery backed RAM for user programs, setups and other objects
•SCSI port for connection with external SCSI disk or CD-ROM
•Optional internal hard disk
•Real-time DSP for each voice: 31 programmable DSP algorithms incorporating
filters, EQ, distortion, panning, pulse width modulation, and more; up to 3
programmable DSP functions per voice
•Filters: Lowpass, Highpass, Allpass, Bandpass, Notch, programmable
resonance
•Programmable stereo multi-effects on MIX outputs, including simultaneous
reverb, chorus, delay, flanging, EQ -and more
•Real-time internal and MIDI control of effects parameters
•MIDI standard sample dump capability
•System Exclusive implementation
TM
•MIDIScope >for analyzing MIDI events

SECTION 12000SPEC.DOC 01/03/93
1.2 K2000R FEATURES
The Kurzweil K2000R offers the same powerful features as the K2000 including:
•Convenient S^space rack module
•240 X64-pixel backlit graphic display with adjustable contrast
•3,5-inch floppy disk drive, for DD or HD disks, DOS compatible
•MIDI In, Thru, and Out
•MIDI LED to indicate MIDI activity
•24-note polyphony wiht dynamic voice allocation
•Multi-timbral, for multi-track sequencing and recording
•199 factory preset programs, and 100 factory preset setups
•Up to 3layers per program, up to 32 layers for programs on drum channel
•Receives mono (channel) pressure and poly (key) pressure
•3-zone setups transmit on 3MIDI channels with independent programmable
controls
•15,000 note scratchpad sequencer for recording from keyboard or via MIDI;
loads and plays MIDI Type 0sequences
•Easy-to-use programming interface including soft buttons. Alpha Wheel, and
alphanumeric pad
•20KHZ maximum bandwidth
•Stereo sample playback capability Programmable stereo multi-effects on MIX
outputs, including simultaneous reverb, chorus, delay, flanging, EQ,,.and
more
•Realtime internal and MIDI control of effects parameters
•Kurzweil 's proprietary VAST™ (Variable Architecture Synthesis Technology)
system
•31 sound shaping algorithms
•Three programmable DSP functions for each voice
•8Megabytes of ROM (16-bit) samples
•Built-in 3.5” floppy drive (HD/DD)
•Two SCSI buses, for connection with external SCSI disks, CD-ROM, or
Macintosh computers
.
•Ten analog outputs, including four stereo pairs and astereo master pair
•Internal ROM expansion capability to 24 Megabytes
•Two 8Megabyte ROM sound blocks (ROM-1, ROM-2) can be purchased and
installed separately
•San^ling Option Kit (DSMP-R) ,which allows for user sampling via analog,
digital or optical inputs
•AES-EBU and SPDIF digital ins and outs are offered; the version 2.0
software* included with this kit provides extensive sample editing and
audio processing capabilities
•Sair^le RAM can be expanded via four standard SIMM memory modules (up to 64
Megabytes
)
•Program/Sequence memory expansion option (DP-RAM) expands battery backed
memory from 12 OK to 760K
•CD-ROM compatible with Sony and Toshiba drives
•Capacity for an optional internal hard drive (up to 240 Megabytes or more)
•Standard equipped with version 1.27 software, allowing the user to port
over stereo samples via the SCSI bus (SMDI protocol) using Passport's
Alchemy™ or through sample duirp over MIDI
•Reads sample data from Akai SIOOO HD disks
Version 2.0 software, which is part of the SMP-R sampling option, allows for
graphic waveform editing via the built-in 240 x64 display. Features include
powerful sample editing and DSP functions (time con^ression/expansion, sample
rate conversion, sample mixing and splicing, normalizing gain, audible sample
cueing, cross fade looping, auto looping, fade in/out and more)
.
2

SECTION 12000SPEC.DOC 01/03/93
Version 2.0 also adds extensive library compatibility functions to the
K2000/K2000R, including the ability to read Ensoniq™ EPS disks (samples,
keymaps and constructs programs) and Akai’^ SIOOO (samples, keymaps and
constructs programs) .This version also provides visual editing of
K2000/K2000R’s internal ROM samples as well as RAM samples, plus user-
programmable loop type per saitple (forward, bi-directional, off) and direction
(forward, reverse), new alternate release parameters (sauries may now play
after the release loop) and much more.
Version 2.0 software will also be available separately from the Sampling
Option Kit.
1.
3
ENVIRONMENTAL SPECIFICATIONS
Temperature ranges
For operation: minimum 4^0 FC)
maximum 104 F(40 C)
For storage: minimum FC)
maximum 186 F(85 C)
Relative humidity ranges (non-condensing) :Operation and storage =5-95%
1.
4
PHYSICAL SPECIFICATIONS
Overall dimensions: K2000
Width 40 15/16 in. 104 cm
Depth 13 7/16 in. 34.1 cm
Height 41/8 in. 10.5 cm
Weight 26 lb. 11.8 kg
Overall dimensions: K2000R
Width 16.9 in.* 43 cm
Depth 13.9 in. 35 .4cm
Height 5.1 in. 13 cm
Weight 22 lb. 10 kg
*Excluding the rack-mount brackets
1.5
ELECTRICAL SPECIFICATIONS
AC supply: selectable; lOOV, 120V, 220V, 240V; .75 amps at 120 volts nominal
Safe voltage ranges (volts rms)
Voltage getting: lOOV 120V 220V 240V
Safe voltage range: 85 -107V 95 -125V 180 -232V 190 -250V
Sa£e frequency range: 48 -65 Hz 48 -65 Hz 48 -65 Hz 48 -65 Hz
If the voltage drops below the minimum safe level at any voltage setting, the
K2000 will reset, but no data will be lost. If the voltage exceeds the
maximum safe level, the K2000 may overheat.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
3

SECTION 1GLOSSARY.DOC 12/13/92
1.6GLOSSARY OF
Algorithm
Aliasing
Aznplitude
Analog
Bandwidth
Bemk
Cent
Continuous Control
Control Source
DSP
TERMS
In the K2000, apreset configuration of programmable
digital signal processing functions. Each of a
program's layers uses its own algorithm, which
determines the type of synthesis each layer uses to
generate its sound.
Atype of distortion which occurs in digitally sampled
sounds when higher pitches (increased sample playback
rates) introduce partials that were not present in the
original sound. These partials may or may not be
musically useful.
The intensity of asignal, perceived as loudness in
the case of audio signals.
Aterm used widely in electronics-related fields to
describe amethod of representing information, in
which the method of representation resembles the
information itself. Analog synthesizers, for example,
use gradual variations in electrical voltage to create
and modify sounds. The oscillations in voltage are
analogous to the waveforms of the sounds they
generate. Compare digital.
In terms of sound generation, the range of frequencies
within which adevice functions. The human ear has a
"bandwidth” of almost 20 KHz (it can distinguish sound
at frequencies from 20 Hz to 20 KHz). The K2000*s 20
KHz bandwidth enables it to produce sounds which span
the entire range of human hearing.
There are two types of banks in the K2000*s memory:
memory banks, which store and organize the programs
and other objects you create, and Quick Access banks,
where you can store programs and setups for one-button
access while in Quick Access mode.
1/lOOth of asemitone. The standard increment for
fine adjustment of pitch.
Adevice which converts motion into arange of 128
possible values which can modulate asound source.
The Mod Wheel, astandard volume pedal, and
controllers like Breath and Aftertouch are continuous
controls. Compare switch controls.
Anything which can be used to modify some aspect of a
program's sound. LFOs, envelopes. Mod Wheel messages
(MIDI 01), and FUNs are just afew examples of the
K2000's control sources.
Digital Signal Processing.
5

SECTION 1GLOSSARY.DOC 12/13/92
DSP Functions
Default
Dialog
Digital
Drum Progrcun
DSP
the K2000*s collection of digital signal processing
functions are what give the Variable Architecture
Synthesis system its flexibility. Within each layer's
algorithm, you can select from along list of DSP
functions like filters, EQ, oscillators, and afew
that are unique to the K2000. Each DSP function has a
corresponding page which enables you to assign
numerous control sources to define how the DSP
functions affect the sound of the program being
edited.
The starting condition of asystem. The settings for
the K2000*s parameters are at their defaults when you
unpack it, and they stay there until you change them.
Ahard reset will erase RAM and restore all parameters
to their defaults.
Apage which prompts you to enter information that the
K2000 needs in order to execute an operation. Dialogs
appear, for example, when initiating aSave or Delete
operation.
Aterm used widely in electronics-related fields to
describe amethod of representing information as a
series of binary digits (bits) -Is and Os. Digital
computers process these strings of Is and Os by
converting them into an electrical signal that is
always in one of two very definite states: "on” or
"off.” this is much more precise than the analog
method, therefore digital computers can operate at
speeds unattainable by analog devices .Digital
synthesizers like the K2000 are actually computers
which process vast strings of digital information
signals, eventually converting them (at the audio
output) into the analog signals which flow into PAs
and other audio systems. See also Analog.
The only difference between adrum program and an
ordinary program is the drum program can contain up to
32 layers instead of the usual maximum of three.
Since each layer has its own keymap and algorithm (not
to mention all the other control sources), this gives
you enormous control over whatever sounds assigned tot
he layers in adrxom program.
Digital Signal Processing; this term refers to avast
range of functions, all of which have in common the
fact that they act upon an electric current as it
flows through acircuit or group of circuits. A
simple form of signal processing is the distortion box
used by many guitarists. Digital signal processing
refers to similar processes which are performed by
digital circuitry as opposed to analog circuitry.
Many of the effects devices available today use
digital signal processing techniques.
6

SECTION 1GLOSSARY. tXX: 12/13/92
Editor The complete set of parameters used to modify a
particular aspect of the K2000, for example^ the
currently selected program^ which is modified with the
Program Editor. The Program Editor spans several
display pages ^which can be viewed by using the soft
buttons (labeled "<more>”)
.
Envelope An aperiodc modifier. In other words, away to cause
asound to change over time without necessarily
repeating the change (unlike periodic modifiers like
LFOs, which repeat at regular intervals)
.
File Agroup of objects stored to afloppy or hard disk, or
loaded into the K2000*s RAM from disk.
Global In this manual, used primarily in reference to control
sources. Aglobal control source affects all notes in
alayer uniformly. If alayer uses aglobal control
source, that control source begins to run as soon as
the program containing it is selected. Its effect on
each note will be completely in phase, regardless how
many notes are being played. Compare Local.
Hard Reset Resets all parameter values to their defaults, and
completely erases the contents of RAM. Press the
Reset button in Master mode to do ahard reset*. This
is aquick way to restore the factory defaults to the
K2000, but EVERYTHING in RAM (all the objects the
owner/artist has created) will be erased, so objects
you wish to keep should be saved to disk or SyxEx
dump. Ahard reset would not be used to recover if
your K2000 is hung up, except as alast resort. See
Soft Reset.
Keymap Akeymap is acollection of samples assigned to
specific keys and keystrike velocities. Keymaps
usually contain numerous sample roots pitch-shifted
across arange of several keys. When you strike a
key, the keymap tells the K2000 what sound to play, at
what pitch and at what loudness.
LPO Low frequency oscillator. An oscillator is an
electrical signal which cycles regularly between a
minimum and maximum amplitude. The simplest
oscillating waveform is the sine wave, but an LFO
waveform can have almost any shape. The number of
times each second that an oscillator repeats itself is
called its frequency, which is measured in Hertz (Hz)
.
Anything up to 50 Hz is considered low-frequency in
musical applications. Use an LFO whenever you want to
generate aperiodic (repeating) effect. Adjusting the
rate of the LFO will change the repetition rate of the
effect.
7

SECTION 1GLOSSARY.DOC 12/13/92
Layer
Leslie Effect
Local
Memory Banks
MIDI
MIDI Device
MIDI Master
MIDI Slave
NL DSP Function
Alayer consists of akeymap processed through an
algorithm* Layers can be stacked together within a
program. Each layer uses one of the K2000*s 24
available voices. Each K2000 program can contain up
to three layers -except drum channel programs, which
can contain up to 32 layers
.
This classic vibrato effect was originally created by
mounting aspeaker in its cabinet so the speaker could
be rotated at varying speeds. This applied avibrato
of varying rate to all sounds played through the
rotating speaker.
In this manual, used primarily in reference to control
sources. Alocal control source affects each note in
alayer independently. For example, if alocal LFO is
used as acontrol source, aseparate LFO cycle will
begin with each note start. The LFOs do not run in
phase unless notes are started simultaneously.
Compare Global.
The K2000*s memory is divided into ten spaces where
you can store any object you edit. These spaces are
called banks. Each bank can hold up to 100 objects of
each type, so we refer to them as the 100s bank, the
200s bank, and so on. The ID of an object determines
in which bank it is to be stored. An object with an
ID of 399, for example, would be stored in the 300s
bank. ROM objects are stored in the Zeros and 100s
banks. RAM objects can be stored in any bank.
Musical Instrximent Digital Interface. Aspecialized
format for representing musical information in terms
of standardized computer data, which enables
electronic musical instruments to communicate with
computers
.
Any device -keyboard, computer, wind instrument, etc.
-which is capable of transmitting and receiving MIDI
messages
.
AMIDI device which is configured to control one or
more other MIDI devices. The MIDI Out port of the
master is connected by cable to the MIDI In port(s) of
the slave device (s),
AMIDI device which is configured to receive MIDI
messages from amaster device. The MIDI In port of
the slave is connected by cable to the MIDI Out port
of the master.
Non-linear DSP functions like SHAPER and WRAP add
waveforms to those already present in asound, while
linear DSP functions act upon the existing waveforms
without adding new ones.
8

SECTION 1GLOSSARY.DOC 12/13/92
Note State
Object
Page
Parameter
Pixel
Program
Program Editor
RAM
RC^
Sample
Any K2000 is either on or off; this is its note state.
Normally^ any given note's Note State switches on when
you strike the key for that note. It switches off
when you release the key, and any sustain controls you
may have applied to the note (Sustain or Sostenuto
pedal, etc.).
Achunk of information stored in the K2000*s memory.
Programs, setups, keymaps, and samples are all
objects. There are several others as well.
Aset of performance or programming parameters which
appear as agroup in the display. The entry level
page for each mode appears when you select the mode.
Most other pages are selected with the soft buttons,
from within an editor.
Aprogramming feature. The name of the parameter
describes the function it controls -transposition,
for example. Each parameter has avalue associated
with it, which indicates the status of the parameter.
Acontraction of "picture element.” The K2000*s
display consists of ascreen with small square dots
(the pixels) .Each pixel lets light through or blocks
it depending on whether it is receiving an electrical
charge. The combination of light and dark dots
creates apattern which you recognize as text or
graphics. The K2000*s display is 240-by-64 pixels, in
other words, 64 horizontal rows, each containing 240
pixels, for atotal of 15360 pixels.
The K2000’s basic performance-level sound object.
Programs can consist of up to 3layers (32 layers for
programs on the drvim channel) ;each layer has its own
keymap (set of examples) and sound-processing
algorithm.
The set of parameters that lets you modify the sound
of ROM or RAM programs. Enter the Program Editor by
pressing the EDIT button while in Program mode, or any
time the currently selected parameter has program as
its value.
Random Access Memory, one of the two basic types of
computer memory. RAM can be both read from and
written to. When you load samples into the K2000 you
are writing to RAM. Compare ROM.
Read Only Memory, one of the two basic types of
computer memory. You can retrieve the information
stored in ROM, but information cannot be written to
it. The onboard sounds of the K2000 are stored in
ROM.
Adigital recording of asound that can be assigned to
akeymap as part of the process of building aprogram.
Samples are stored in ROM (factory-installed) or in
RAM (loaded from disk)
.
9

SECTION 1GLOSSARY.DOC 12/13/92
SCSI
Semitone
Setup
Soft Reset
Switch control
Toggle
Value
VAST
Pronounced ”skuzzy/ ”this acronym stands for Small
Computer Systems Interface. It is simply a
standardized form of information exchange which allows
any SCSI equipped device to communicate with any other
SCSI device. Two or more SCSI devices -they can be
computers, hard disks, printers, just about anything
that sends or receives information in standardized
form -are connected via special cables to their SCSI
ports. This configuration is much faster than serial
information exchange, the precursor to SCSI.
The standard interval between the twelve notes in the
scale. There are twelve semitones to an octave. The
interval between Cand C# is one semitone.
Amulti-timbral performance object. Asetup consists
of three zones, each of which can be assigned its own
program, MIDI channel, and control assignments. These
assignments control the K2000*s operation while in
Setup mode, as well as determining the Program Change
numbers and controller messages the K2000 sends via
MIDI.
Returns the K2000 to Program mode without affecting
the contents of RAM. Press the +/-, 0, and CLEAR
buttons to do asoft reset. IF your K2000 is hung up
for some reason, this will usually get take care of
the problem. See Hard Reset.
Adevice which converts motion into discrete on/off
signals. Aswitch control, like the sustain pedal, is
either on or off. Compare continuous control.
As averb, to switch between (usually) two conditions
using adevice which makes the switch. As anoun, the
device which makes the switch. For example, pressing
the "View” soft button on the top level Program mode
page toggles between small-type and large-type views
of the current Program.
the current setting of aparameter. Each parameter
has arange of available values, one of which you
select while editing. The Transposition parameter on
the Program mode page, for example, has adefault
value of 0. Change the value to change the
parameter’s effect on the current program.
Variable Architecture Synthesis Technique; the term
created by Kurzweil engineers to describe the multi-
faceted capabilities of the K2000, which combines
sample playback (ROM and RAM) ,and waveform generation
with abroad array of processing functions. This
architecture provides preset algorithms created by
Kurzweil sound engineers, which include filters,
distortion, panning, EQ, waveform oscillators,
waveform shaper, hard sync oscillators, amplitude
modulation, gain, crossfade, and more.
10

SECTION 1GLOSSARY, DOC 12/13/92
Zero Crossing Any of amiitiber point in the digital representation of
asound's waveform where the digital signal is neither
positive or negative. When looping samples, starting
the loop at one of these points will reduce or
eliminate the click or change in timbre that can occur
in sample loops.
11

SECTION 2SETUPl.PUB 12/21/92
2.0 SETUP AND OPERATIONAL CHECKOUT
2.1VOLTAGE SELECTION
2. 1*1 The K2000 is equipped with avoltage selector which allows
operation on single-phase AC of 100 Volts, 120 Volts, 220 Volts,
or 240 Volts, The selector is set at the factory for the AC
line voltage most commonly in the country of destination. The
setting can be checked by looking at the small panel just to the
left of the AC power connector -awhite indicator pin is
visible in the hole next to the selected voltage,
WARlsflNG: Do not attempt to operate the K2000 on any AC voltage other than the one selected -extensive
damage to the unit may result!
WARNING: CHANGING THE VOLTAGE SELECTOR MAY REQUIRE THE USE OF A
DIFFERENT LINE CORD OR ATTACHMENT PLUG, OR BOTH. TO REDUCE
THE RISK OF FIRE OR ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL
2.1.2 To change the selected voltage:
1.
2.
3.
4.
5.
6.
7.
8.
Turn the unit off and remove the AC line cord from the AC power
connector.
Open the cover of the fuse/voltage select compartment using a
small blade screwdriver or similar tool.
Pull the voltage selector card straight out of the housing,
using the indicator pin (See Figure 2.1 below).
Orient selector card so the desired voltage is readable at the
bottom.
Orient the indicator pin to
point up when the desired
voltage is readable at the
bottom (See Figure 2.2 below)
.
Insert the voltage selector
card into the housing with the 's ^
printed side of the card facing
towards the AC power connector,
and the edge marked with the Fuse block
desired voltage first.
If changing from lOOV or 120V
to 220V or 240V, or vice-versa,
change fuse(s) and fusing
arrangement as described under ?ii^^o
.. ^Figure 2.1 -Voltage Selector Card Removal
"Fuses”
Replace compartment cover.
Verify the indicator pin shows the desired voltage.
Figure 2.2 -Voltage Selector Card Orientation
1

SECTION 2SETUPl.PUB 12/21/92
2.2FUSES
WARNING: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE, REPLACE FUSES
ONLY WITH THE TYPE AND RATING SPECIFIED.
2.2.1
Fuse Replacement:
In North Aznerica and other locations
where the AC supply voltage is 1—-
120V/60HZ, replace the fuse only with
Type AGC, xFast-Acting, 250
Volt, 1Amp fuse as per Figure 2.3
below.
Figure 2.3 -American fuse
2.2.2 In Europe and other locations where the
AC supply voltage is 220 -240V/50Hz,
there are two fuses -wone on Line and
one on Neutral. Either of these fuses
should be replaced only with aType
GDB, 5mm x20mm, Quick-Acting (F), Low-
Breaking Capacity, 250 Volt, .50 Amp
fuse as per Figure 2.4 below.
Fuses
Figure 2.4 -European fuse
NOTE: When preparing the unit for use on European or other 220
-240V/50HZ AC lines, the fusing arrangement must be changed in
order to fully protect the instrioment.
2.2.3 To change from the North American to the European fusing
arrangement
:
NOTE: Refer to Figure 2.5 below for details.
1. Turn the unit off and remove the
AC line cord from the AC power
connector.
2. Remove the cover of the
fuse/voltage select compartment
using asmall screwdriver or
similar tool.
3. Loosen the Phillips screw 2
turns
.
4. Remove fuse block by sliding up,
then away from the Phillips
screw, and lifting up from the
pedestal
.
5. Invert the fuse block and install the .50 Amp GDB fuses in
both the upper (Hot) and lower (Neutral) holders.
6. Slide the fuse block back onto the Phillips head screw and
pedestal.
7. Tighten the Phillips head screw.
8. Replace the cover.
Figure 2.5 -North American to
European fuse conversion
2

SECTION 2SETUP. PUB 11/0
2.3 RAM EXPANSION
2.3.1 User RAM in the D2000 may be expanded with the installation of
SIMMs (Single In-line Memory Modules) in pairs. SIMMs for the
K2000 must be 30 pin, 8bit, and 120ns or faster, with maximum
dimensions not exceeding 3.5” wide x2.2” high x.25** thick -
SIMMs with ICs on both sides are not supported. The following
memory sizes are supported:
256KB X81MB x84MB x816MB x8
2.3.2 Installation of SIMMs:
1.
2.
3.
4.
5.
6.
7.
8.
9.
SCSfport
Figure 2.6 -Engine Board memory chip layout
Turn the unit off and remove the AC line cord from the AC power
connector.
Open the unit as described
in Section 3, "Disassembly". ^
Locate the SIMM sockets on
the Engine board (Figure
2.6)
.There are two banks
of SIMM sockets, the two
inner sockets are Bank Aand
the two outer sockets are
Bank B. When installing one
bank (2 SIMMs), install the
SIMMs in the Bank Asockets.
When installing two banks (4
SIMMs) of different sizes,
make certain the 2SIMMs in
the Bank Asockets are the
same size, and the 2in the
Bank Bsockets are the same
size.
Insert aSIMM into the proper
socket at a60 angle (Figure
2.7) .
Press the SIMM firmly into
the socket until it clicks
into place.
Pull the latches on each end
of the socket outward, rotate
the SIMM to avertical
position, and release the
latches
.
Repeat steps 3-5to install remaining SIMMs.
Once all SIMMs have been inserted, inspect for proper
installation -make sure the top edges of all like SIMMs are at
the same height and parallel to the printed circuit board.
Close the unit as described in Section 3.
back of unit
ordftr of instaJIation -4SIMMs
2SIMMs
Figure 2.7 -SIMM installation
2.3.3 To verify the SIMMs are functional:
1. Plug in the power line cord, and turn the unit on.
2. After the K2000 has initialized, press the ”DISK” button.
3. Confirm the ”Samples :####K” figure displayed in the center of
the status bar corresponds to the total amount of user RAM just
installed.
3

SECTION 2SETUP. PUB 11/04/9
2.4 Changing System Software (Engine)
NOTE: The ICs containing the K2000's software are static sensitive
devices. USE ALL STANDARD ANTI-STATIC PRECAUTIONS WHEN
HANDLING THESE DEVICES!
2.4.1 To replace the ICs:
1. turn the unit off and remove the AC line cord from the AC power
connector.
2. Open the unit as described in Section 3.
3. Locate the old software ICs U3 and U6, on the Engine Board
(Figure 2.6 above). Remove the old ICs using an IC puller or
similar tool. Be careful not to damage the traces on the
board.
4. Carefully insert the new IC labeled ”LO** in the socket at U3,
and the new IC labeled "HI” in the socket at U6. Make certain
the ICs are oriented with pin 1toward the front of the unit.
Pin 1is on the end of the IC with the indentation.
5. Inspect for proper installation -make sure the ICs are firmly
seated into the sockets and that none of the pins are bent.
6. Blose the unit as per the instructions in Section 3.
7. Always HARD RESET the instrument after changing the software.
Note that all user data in RAM will be erased.Ahard reset
can be performed on power-up by pressing and holding the "1”,
”2” and ”3” buttons on the numeric keypad.
4

SECTION 2STARTUP.DOC 12/22/92
2.5 BASIC STARTUP CHECKLIST
•Make certain the k2000's voltage setting matches the voltage in
your location.
•Set the K2000 on ahard flat surface or astable keyboard stand,
and leave plenty of room for ventilation.
•Connect the power cable.
•Make sure the sound system is at asafe volume level.
•Plug in apair of stereo headphones or run standard (H inch) audio
cables from the MIX audio outputs to your sound system (use the
left MIX output for mono)
.
•Plug the included foot pedal into the rear panel jack marked "Foot
Switch 1".
•Power up the unit and begin playing.
•If distortion is heard, reduce the gain on the mixing board, or
use the pad if it has one.
•Scroll through the Program list with the Alpha Wheel (the large
knob to the right of the display)
.
•Press the Setup mode button, then use the Alpha Wheel to select
tri~zone setups with independent programs, MIDI channels and
controls in each zone.
•Press the Quick Access mode button and use the numeric keys to
select from programmable banks of ten programs or setups.
•Insert aprogram library disk into the floppy drive. Press the
Disk mode button, then scroll through the files with the Alpha
Wheel. Press "Load", then press "OK" twice. Then check out the
programs numbered in the 200s.
2.6. STARTUP -THE DETAILS
2.6.1 This section will walk you through the hookup of the K2000. We *11
take alook at the rear panel, then describe the power, audio, and
other cable connections.
2.7BEFORE STARTING. ..
2.7.1 Before connecting anything, make certain the K2000 is properly and
safely situated. It will rest securely on most standard keyboard
and instrument stands. Otherwise, it should rest on ahard flat
surface. In this case, it mast rest on its rubber feet, and NOT
on the bottom panel. NEVER block the ventilation openings on the
rear panel; doing so can cause overheating which will seriously
damage the K2000. To provide adequate ventilation, the rear panel
should be at least four inches from any vertical surface.
5