Univox mini-korg Synthesizer User manual
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SERVICE
MANUAL
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UNICORD
INCORPORATED
75
FROST
STREET
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WESTBURY.
NEW
YORK
11590
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CONTENTS
1.
Mini-Kong
Synthesizer
Operating
procedure
1-3
2.
Specifications
.',„
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•
*
3.
Block
Diagram
....;..:...•....."...;
....*.
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4.
Parts
Distribution
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...
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5
5.
Mechanical
parts
Diagram
4....V..;....;.-..'..-....:.":........-..'.»...«..»«
6
6.
Mechanical
parts
List.....
,
•—•
7
7.
SB018
parts
List.........
".
8
8.SB019
parts
List.:
.♦•
•
9
9.SB018/SB019
Circuit
Board
*
:
10
1Q.
SB-020
Circuit
Board.........
l!
11.
Over
All
Wiring
Diagram
;
12
12.
Over
All
Circuit
Diagram
'.
13
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•
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MINI-KORG
SYNTHESIZER
OPERATING
PROCEDURE
1.
Connect
AC
line
cord
(found
inside
re
cessed
compartment
on
rear
of
unit,
figure
1)to
local
voltage
50/60Hz
outlet.
2.
Connect
audio
cable
(shielded-type)
from
jack
marked
"Output",
to
input
of
your
amplifier.
Utilize
jack
marked
"H"
for
high
impedance
use
(100K
Cl
)
or
jack
marked
"Low"
for
low
impedance
(5K
fl
)
shown
in
figure
1.
3.
Switch
on/off
control
to
"On"
position.
If
pilot
lamp
fails
to
light,
check
fuse
found
in
rear
compartment,
figure
1
and
replace
With
identical
rating
only.
4.
Install
enclosed
Music
Rack
as
shown
in
figure
2.
5.
Adjust
pitch-control
slide
for
tuning
figure
10.
To
adjust
Pitch,
set
Attack-Percussion
slides
(figure
5)
to
"8",
and
all
"Instant
Set
Tabs"(figure
8)
to
OFF
position.
6.
Follow
the
control
descriptions
listed
next
for
a
better
understanding
of
the
versa
tility
of
your
new
MINI-KORG
SYNTHE
SIZER.
7.
Unit
is
equipped with
2
rear
adjustable
legs
for
tilting.
Precautions:
•
Be
certain
that
power
switch
is
turned
OFF
whenever
plugging
in
or
unplugging
the
AC
con
nector
cord.
•
If
fuse
should
need
replacing,
make
sure
that
you
replace
with
identical
value.
•
Protect
the
unit
from
excessive
heat,
humidity,
and
vibrations.
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CONTROL
DESCRIPTION:
VOLUME
Figure
3
VOLUME-
For
adjusting
overall
volume
level.
TRAVELER-By
the
proper
utilization
of
these
controls,
the
operator
can
alter
any
musical
character
in
reference
to
timbre,
bnllance.
tone.
etc.
ATTACK
PERCUSSION
(TV
SLOW
Figure
5-
SINGING
ATTACK-This
slide
control
will
form
the
beginning
of
your
musical
voice,
from
a
fast
attack
to
a
slow
attack.
PERCUSSION-Th.s
slide
control
will
adjust
the
end
of
each
note,
when
the
key
is
held
down.
SCALE-This
rotary
control
provides
the
selection
of
a
full
five
(5)
octave
range.
32:
16";
8";
4';
2'.
which
extends
the
37
note
key
board
to a
"FULL
Spectrum
Keyboard"
CHORUS/PHASER-
I
Slow
rotating
sound
with
duplicating
effect.
II
Fast
rotating
sound
with
intensified
duplication
ef
fect.
MODE:
TRIANGLE-Renders
a
soft
lonal
response-sax,
clarinet,
bass
guitar,
etc.
SQUARE-Provides
a
single
reed
gravitation
bells,
flutes,
clarinets,
malleted
bar action,
etc
SAW-TOO
H-Develops
your
double-reed,
strings,
brass
and
many
modern
tones.
This
waveform
is
one
of
the
most
used
in
synthe
sizer
interpellations
Figure
8
\..•.!«»,
«mhi
"INSTANT
SET
GROUP:
1.
EXPAND-This
control
is
a
sub-division
of
the
traveler
circuit.
It
provides
"capturing"
effect
when
used
in
conjunction
with
traveler
(figure4)and
Attack/Percussion
group
IfigureSl
Creates
brass,
under-water
effect,
bubbling
effect,
growl,
etc.
2.
BRIGHT-Provides
additional
high-frequency
harmonic
structure,
or
added
brilliance
and
presence.
3.
SUSTAIN-Couples
a
fixed
sustain
to
the
existing
lone,
when
key
is
released.
4.
BENDER-Provides
added
slide
to
the
beginning
of
each
tone;
such
as
Glissando.
slur
and
other
accenting
generations
used
in
synthesized
music.
5.
REPEAT-This
effect
is
used
for
creating
simulations
of
flutter,
trill,
mandolin,
triple
picking,
etc.
6.
VIBRATO-Provides
constant
pitch
change
Vibratotto
to
tone.
change
Vibrato
to
your
7.
DELAY
VIBRATO-Adds
a
colorful
realism
to
your
playing
by
applying
vibrato
with a
slight
delay
lor
additional
expres
sion.
8.
PORTAMENTO/GLIDE
-Allows
you
to
glide
from
last
note
played
to
the
next
note,
tn^any
given
sequence.
This
control
allows
you
to
create
such
effects
as:
bowing
strings,
theremin,
theremin,
sonic
wave,
scanning
etc.
REPEAT
Figure
9-
SPEED
DEPTH
VIBRATO
PORTAMENTO
SLIDE
MODIFIER
GROUP
REPEAT-This
provides
speed
adjustment
of
the
repeat
"Instant
Set"
Control
(Figure
8.
?
5)
VIBRATO
SPEED/DEPTH-These
slides
give
full
control
over
the
Vibrato
Speed
and
depth
when
the
Vibrato
or
Delay
Vibrato
"Instant
Set"
tab
is
utilized.
(Figure
8.S»6
and
«
7)
PORTAMENTO-This
slide
allows
you
to
adjust
your
glide
rate.
HIGH
©
POWER
Figure
10-
PITCH
CONVENIENCE
GROUPS-
I
indicator
lamp.
II
Pitch-Allows
user
to
preset
his
overall
tuning.
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MINl-KORG
SYNTHESIZER
PREPARED
INSTANT-SET
CHART
It
is
often
better to
change
the
lever
position
slightly
according
to
the
type
of
amplifier
used.
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SPECIFICATIONS
•
Key
board
•
Scale
•
Wave
form
•
Effect
Switch
•
Slide
Control
•
Dimensions
•
Weight
•
Accessories
•
Power
Supply
O
Power
Consumption
©
Others
O
Options
Scale
37
keys
32*
16'
81 41
2*
Triangular
Wave
Sawtooth
Wave
3
Octaves
7
Octaves
Square
Wave
Chorus
I
Chorus
II
Expand.
Bright,
Sustain,
Bender,
Repeat
Vibrato,
Delay
Vibrato,
Portamento
Volume,
Traveler,
Attack-Slow,
Percussion-Singing
Repeat,
Vibrato-Speed,
Vibrato-Depth
Portamento
Pitch
Length:
29.3in.
Width:
ll.Oin.
Height:
4.3in.
19.8lbs.
Music
Rack,
Connection
Cord
117V
50/60HZ
15W
Power
Switch,
Pilot
Lamp,
Output
Jack
(High
100KQ
Low
5Kfl)
Case.
Stand,
Expression
Pedal
(2
channels)
BLOCK
DIAGRAM
REPEAT
(HJ
VIBRATO
I
SPEED
ON/OFF
GENERATOR
WAVE
FORM
MATRIX
TRAVELER
+
G
-
M
POWER
(TJ
2"
©4*
Off
A16'
632'
ENVELOPE
~
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PARTS
DISTRIBUTION
A/-
500K
SOOK
56O
-560
540
530
52O
V6RAT0
CHORUS
A A A
saw.
STRETCH
PITCH
BALANCE
Pilch
W<««
Form
TS200011
(OSC)
oooooooooooo
ooo
51
SO 49 48
47
46
4S 44
43 42
41
40
39
38
37
a/
O31
O33
034
O35
O36
SOK
5K(10K)
500
SOK
5K(10K)
500
CUT-OFF
BRIGHT
BALANCE
FREQENCY
BRIGHT
BALANCE
FREQENCY
Gatt
Hi
Pas*
LoPaa
TS
201012
Hi-Pass
TS
201012
Lo-Pass
TRAVELER
o
ooooo
oo
o
oooooo
ooooooooo
24
23
22
21
20
19
18
17
16
15
14 13
12
11
10
9 8
7
6
5 4 3 2
1
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MECHANICAL
PARTS
DIAGRAM
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SB-018
PARTS
LIST
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SB-019
PARTS
LIST
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SB-018/SB-019
CIRCUIT
BOARD
mini
KORG
700
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SILK-019
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49 48
47
46
46
44 43
^42
41
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3*
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SB-020
CIRCUIT
BOARD
RADIATOR
SB-O2OD
RD-3243R
J
3 5
7
III
IOK
8
9
IOK
+
470JU./50
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OVERALL
WIRING
DIAGRAM
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OR-
ORANGE
YE-
YELLOW
GR-
GREEN
BU-
BLUE
VI-
VIOLET
GY-
GRAY
WT-
WHITE
BL-
BLACK
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OVER-ALL
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OVER-ALL
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DIAGRAM
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232-3258
KORG
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AODRESSr
DONCARHYTHM
TOKYO
"tEPHONE:
TOKYO325-5691
GSi
KEIO
ELECTRONIC
LABORATORY
CORPORATION
JS'12,
ShlmotakaUh
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Su$ltwntl'Kut
Tok}x>t
Japan.
Tokyo
Ref.
No.
b.
HIGH
PASS
Q
ADJUSTMENT
Set
Traveller
H:6,
L*:
6
and
adjust
with
(SB-O18
)5OKHigh
Pass
Frequency
to
make
the
area
of
wave
cycle
largest.
c.
LOW
PASS
CUT
OFF
ADJUSTMENT
Traveller
H:6,
L:O.
Adjust
with
5K
Low Pass
Bright
to
make
5
wave
cycles.
d.
HIGH
PASS
CUT
OFF
ADJUSTMENT
Traveller
H:MAX
L:6.
Connect
the
oscilloscope
with
SB-018
HP
Check,
and
adjust
at
range
O.1V
5m
Sec
with
5K
High
Pass
Bright
to
make
4
wave
cycles.
4.
VCA
GATE
ADJUSTMENT
SETTING
SCALE;
21
SUSTAIN:
ON
ATTACK:
O
SINGING:
10
Ecegs.-the.key
and
adjust
with
50K
Gate
Cut
Off
to
avoid
the
sound
to
remain.
*
Refer
to
the
Parts
Distribution
in
the
service
manual,
regarding
all
the
.Adjustment
VR.
EFFECT
PART
._.
1.
PITCH
ADJUSTMENT
SETTINGS'
EFFECT:
ON
BALANCE:
0
PITCH:
4
SELECT:
DUET
OUT:
WT-1OA
a.
Press
C4
and
adjust
with
5OK
Hi
Pitch
to
make
the
pitch
O
cent.
b.
Press
Cl
and
adjust
with
1OK.
Lo
Pitch
to
make
the
pitch
O
cent.
.
'*•'.•
c.
Repeat
the
a
and
b
operations
several
times.
FACTQ&IRS
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