Korg Trident MK1 Service Manual

Page 1
PERFORMING
KEYBOARD
SERVICE
MANUAL
CONTENTS
1. SPECIFICATIONS.
2. STRUCTURAL
3. BLOCK DIAGRAM.
4. CIRCIT DIAGRAM.
5. PC BOARD.
DIAGRAM
1
.
2 3
4
11
KEIO
6. CONNECTOR
7. SEMI-FIXED
8. ADJUSTMENT
9. PARTS LIST.22
ELECTRONIC
FUNCTION.
RESISTORS
PROCEDURE
LABORATORY
DIAGRAM ...
.
CORPORATION
17 18
19
TOKYO/JAPAN
Page 2
1. SPECIFICATIONS
KEYBOARD.•
SYNTHESIZER VCO-1*.•Scale
VCO-2*.•
VCF*
VCA*
ENVELOPE
VCO-2.• ENVELOPE
PROGRAMMER
.•
.•
SECTION
GENERATOR.•Attack
GENERATOR.eSolo
<x16)
(*this marked facilities are programmable)
.•
C~C,
• Waveform
• PW/PWM Intensity
• PWM Speed Scale (Off, 16'. 8', 4')
• Waveform
• Detune Cut-off Frequency
• Resonance
• EG Intensity
• KBD Track (Off, Half. Full)
EG Mode I
• Decay
• Sustain
• Release Detune Memory (On/Off)
Program Select (1 ~ 8)
• Bank Select (A, B)
• Manual
• Write
• Memory
61
Keys, 8
(16', 8,4')
(
(
r\ ,
r\ )
/'—^~[
Release (On/Off)
voices
r\_
,
PW. PWM)
)
VOLUME CONTROL
POWER SWITCH.•Power
INPUT & OUTPUTS
OUTPUTS.•
INPUTS.•
DIMENSIONS.•
WEIGHT
ACCESSORIES.•Connection
POWER CONSUMPTION
.*21
....
•Total
• Headphone
• Separate Outputs
• Damper (
• Brass VCF fcM In (-5V — +5V)
• Brass Trigger In ( ~i-oun
• Total Expression
• Separate
• Dust Cover
• Foot Switch S-1
. . •
• Wattage (41W)
Volume
(On/Off)
Mix Outputs
Headphone
Synthe VCF fcM In (-5V ~ +5V)
Expression
1012 (W) x 52 (H) x 524 (D) mm
kg
Voltage (Local Voltage, 50/60Hz)
Volume
x2
Output
T_gno
Cord
(High, Low)
x3
(Synthe,
(Stereo)
)
(0 ~
x3 (0 ~+5V)
)
+5V)
Brass, Strings)
PRESET (x3).•Piano-1
MIXER
BRASS SECTION SCALE (x2).•
VCF.•
ENVELOPE
TRIGGER.•
MIXER
.•Output
.•Output
GENERATOR.•Attack
• Protect (On/Off)
• Piano-2
• Clav
• Volume
16', 8'
Cut-off Frequency
• Resonance
• EG Intensity
• Decay
• Sustain
• Release Multiple Trigger (On/Off)
• Trigger Select (On/Off)
• Silence Note (2, 4, 6, 8)
• Volume
(On/Off)
(On/Off)
STRINGS SECTION SCALE (x3).•16',
ENVELOPE
EQUALIZER.*High
EFFECT.•
FILTER.•KBD
MIXER.•
TOTAL CONTROL
KEY ASSIGNOR. KEYBOARD
PITCH CONTROL
VIBRATO.
JOYSTICK
FLANGER
GENERATOR.•
SPLIT.
SECTION
8', 4'
Attack
• Release
• Low Bowing (On/Off,
• Vibrato
• Ensemble
Output
• Volume
• Assign Mode (1,2)
• Synthe (L, L+H, H)
• Brass (L, L+H, H)
• Strings (L, L+H, H)
• Tune (±100 Cents)
• Delay Vibrato (On/Off)
• Intensity
Pitch Bend (X-Axis)
• Vibrato Depth/Trill
• Intensity
• Speed
• Select (Synthe,
• Manual
• Intensity
• Feedback
• Speed
(On/Off,
(On/Off)
Balance
(On Off)
Level, Tone)
Delay Time, Intensity,
Depth (Y-Axis)
Brass, Strings)
Speed)
1
Page 3
2.STRUCTURAL
DIAGRAM
Page 4
3.BL0CK
DIAGRAM
3
Page 5
4.CIRCUIT DIAGRAM KLM-298
KLM-299
KLM-300
Page 6
KLM-292
Page 7
KLM-301
KLM-302
Page 8
Page 9
Page 10
KLM-294
KLM-293 S
JS3
T037-)
v. 101 RK>2
J.C5t XX
VIBRATO”
>EiEY Time
Q23
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(NEW PRODUCTION)
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6.8k
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10-20
13600
R32
1C-19
4558
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R169
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4.?KC?^> C945 \ J^>kQ21
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FROM
LM291
^~zz
0.Q056TVR12^^
"0^<
5^
5 £
ic-ts
4558
UK
£
Page 11
KLM-291
KLM-297
M.M-294
SV-SlGlH
U24-15
STj-SlGlHl
toM-12
R2B
1 K
R3
H
i4 * i4t
E3-.
R20>
IK >
22^
R36
W
£
Obi.
R.<1 IOOji
»Mfi6
QU3
03 IK
CK>
C9
15*- .
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,(0)X3
sy-sig out
10121
0.056!
C57xc94>
, ®I %
VR7
R125
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1C 13
2JMB
G
2Sir30MSRI
D27
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26
0022
_
*x>*
:
*
f^^anw’
10*8
VIBRATO
Id 26-2
DEL AT VIBRA'
KLM -293
Page 12
5.PC
BOARD
KLM-291
FRANGER
KLM-292
PROGRAMER
W- ui
; i|i —
j
■ A
~
//Wgx
FftSi w
Bu
*
4
1
F ^
^m\m
Page 13
KLM-293
BRASS
KLM-294
STRINGS
(OLD PRODUCTION)
ICIO
RIQ7
D6. „
RI06
A U
Yrt
_*
'ca
RI34
O—
RI29
H 3 6
-i
VRI3
RI99
L
RI95
CI07 R200
R2I3
;R203 R204
l
-
L
R2I6
R205
”187
RI88
RI76
RI90
CI04
-
_
R2I7
R209
12
SW7
KLM-294F
Page 14
KLM-294
STRINGS
(NEW PRODUCTION)
KLM-343
8S10W0W
510A
aaofri
'MC14G46B
MC14O130
100KB
100KB
0.0047
TC9130P
V*
KHC
11901
*1
“1=
0.0047
KLM'2B4
KHC
11901
0.0047
C
0.0047
00047
11901
00047
13
Page 15
KLM-300
ASSIGNER
myrM
m
c*—-
\\C~~
kAffjaAis
z~
•3/^ng
Page 16
K
120K
_
10K
o-
,
—o
47n
K 2SK30A(GI
5
1
o
f
KLM-341
(14
2
o
s_
19
Page 17
Page 18
6. CONNECTOR FUNCTION
P.C.B
KLM-291
KLM-294
KLM-291
KLM-300
KLM-300
KLM-293
KLM-294
KLM-300
1_1
CONNECTOR
_
_
01- 1
9
10
02- 1
4 5 6 7
8 9
03- 1
2
4 5
6
04- 1
05- 1
8
9 10 11
06- 1
4
5
6
7
$
07- 1
2
4
08-
1
4
6
8
09- 1
10- 1
10 11
11- 1
10 11
12
2
3 4 5
6 7
8
2 3
3
2 3 4
5 6
2 3
4 5
6 7
2 3
3
2 3
5
7
2 3
4 5 6
7 8
2
3 4
5 6
7
9
2
3 4
5 6
7 8 9
JOY-INT3 JOY-INT2
Y
X
JOY-SPEED
JOY-1 NT 1 (CW)
JOY-SPEED
YOY-SPEED
+5V
-5V
-5V
GND GND
PHONE OUT 1 PHONE OUT 2
MIX OUT IN PUT 3
GND SY-SIG-OUT
GND
BR-SIG-OUT GND ST-SIG-OUT
XO
XI
X2
X3
X4
FUNCTION
" "
2
1
(CCW)
2
3
1
M0
Ml
M2
M3
M4
M5
M6
M7
M8
M9
M10 ST-SIG-7
-15
GND + 15
"
••
" "
" " "
6
5
4
3 2
1
o
ST-CUTOFF SY CV-0
" CV-1 " CV-2
" CV-3
" CV-4
" CV-5 " CV-6
" CV-7
ST CV-0
" CV-1 " CV-2 " CV-3
” CV^I
"
CV-5
"
CV-6
"
CV-7
ST­ST-
ST-
BR­BR-
BR-
SY­SY-
SY-
A A>
a
A
A
BR-MPXG
>
D>
l>
t> O
ST-MPXG
M.PROTECT MPX-CV
MPX-GATE
ASSIGN MODE
D D
C C B
B A A
(CW)
FREQ
CONNECTOR
JOYSTICK
it
if
it
i t
if
11
19
If
It
CATHODE ANODE
PHONE
91
99
TOTAL VOL
99
91
9 9
MIXER VOL
91
9 t
19
99
9 9
KLM-298
9 9
It
99
9 9
99
KEYBOARD
9 9
99
9
99
99
99
99
99
99
9 9
KLM-317
99
99
99
99
19
99
99
9 9
99
99
99
15-3
16-3
17-3
18-3 19-3
20-3
21-3 22-3
39-1 39-2
39-3 39-4
39-5 39-6
39-7 39-8 48-3
48-2 48-1
48-6 48-5
48-4 48-9
48-8 48-7
37-10 37-12 42-10
26-4 37-11
48-10 26-5
37-6 26-6 37-7 26-7
37-8 26-8
37-9
COLOR
BR RE
OR YE GR
BL PU GY
WH
BK BR RE
OR YE
GR
BL
PU
GY WH
BR
RE
BK BR
RE OR YE GR _
BK
BR
RE OR
YE GR
BL
PU GY
WH
_
BK
PU
BL GR
YE
OR
RE
BR
BK _
BL
BK
RE
BR
BK
RE
OR
GR
PU
OR
GR
OR
GR
WH
GR
WH
BR
YE
BL
BK BR
RE
YE
BL PU
BR RE
YE
BL PU
GY
BK PI
BR RE
OR YE
BL PU
GY
BK PI
LB
P.C.B
KLM-300
KLM-302
KLM-301
CONNECTOR
12- 1
2 3
4 5
13- 1
2
3 4
5 6
8
14- 1
2 3
4
6
15- 1
16- 1
17-
18- 1
19- 1
20-
1
21-
1
22-
1
23-
24-
10
11 12
13
25-
10 11
12
7
5
7 8
2 3
4
5
2 3
4 5
2 3
4 5
2
3 4
5
2 3 4
5
2 3
4
1
5
2 3
4 5
2 3
4 5
1
2 3
4 5 6
7 8
2 3 4
5 6
7 8
9
3 4 5
6
9
1
1
2
7 8
TOTAL-ORG ST-ORG
SY-ORG
BR-ORG
Z-BRG
GATE 0 RC
GATE
RC
GATE 2
RC
GATE 3
RC
GATE 4
RC GATE 5
RC
GATE 6
RC
GATE 7
RC
GATE 0 SY-CV 0 SY-SIG0
SIG MIX 0
RC-1 GATE 1 SY-CV 1
SY-SIG1 SIG-MIX 1
RC-2 GATE 2 SY-CV 2
SY-SIG2 SIG MIX 2
RC-3 GATE 3 SY-CV 3
SY-SIG3
SIG MIX 3
RC 4
GATE 4
SY-CV 4
SY-SIG 4
SIG MIX 4
RC 5
GATE 5
SY-CV 5
SY-SIG
SIG-MIX 5 RC-6
GATE 6 SY-SV6
SY-SIG SIG-MIX 6
RC 7
GATE 7 SY-CV 7 SY-SIG 7
SIG MIX 7 SIG MIX 0
CUT OFF FREQ
VCA EG MODE RESO NANCE
EG INTENSITY KBD TRACK ATTACK
DECAY SUSTAIN
RELEASE
PRESET
PRESET VOLUME GND
SY-SIG OUT (—►291)
PW/PWM ST-4'
BR-16'
VC02 OFF
BR-8'
ST-16' ST-8'
VC02 16'
VC02 8'
VC01 16'
VC01 8
FUNCTION
0
1
1
2
3
4
5
6
7
5
6
" "
"
-
" " "
1
2
3 4
5 6
7
CONNECTOR
49-2 35-3 41-4
36-3
36-7
15-2 15-1 16-2 16-1
17-2
17-1 18-2 18-1
19-2
19-1 20-2
20-1 21-2 21-1
22-2
13-2 13-1
08-1
27-3
23-1
13-4
13-3
08-2
28-3
23-2
13-6
13-5 08-3 29-3
23-3
13-8
13-7 08-4
30-3
23-4
14-2
14-1
08-5
31-3
23-5
14-4
14-3 08-6 32-3
23-6
14-6
14-5
08-7 33-3
23-7
14-8
14-7 08-8 34-3
23-8
15-5
16-5
17-5
18-5
19-5 20-5
21-5 22-5
42-4 43-1
42-5
43-3
a
a n
42-8 43-4
43-5
43-5
42-6
42-9
43-10
47-5
43-6
35-4 36-9
43-9
42-7
36-10 35-6
35-5
42-1
42-2 43-7
A A
43-8
COLOR
BR RE
OR YE
GR
BK
BR
RE
OR
YE
GR
BL
1
PU
BK
91
99
9 9
99
99
99
99
99
9 9
9 9
99
99
BR
99
99
9 9
9 9
RE
9 9
RE
99
9 9
OR
9 9
99
9 9
99
YE
99
99
99
99
GR
99
99
99
99
BL
99
99
9 9
99
PU
9 9
99
99
9 9
BK BR
RE
OR
YE GR
BL PU
BR RE OR
YE
CjR
BL GY
GY WH
BK PI
BR
9
RE
OR
YE GR
BL PU GY
WH
BK PI
i f“>
LB
9
P.C.B
KLM-301
KLM-301
KLM-294
KLM-293
KLM-317
KLM-292
CONNECTOR
40- 1
41-
25- 13 26- 1
27-
1
28- 1
29- 1
30- 1
31- 1
31- 3
32-
1
33- 1
34- 1
35- 1
10
11 12
36- 1
10
11
12
37- 1
10 11
12
38- 1
39- 1
6
8
mm
4 5
6 7
8
1
2 3
2 3
4 5 6
7 8 9
2
3 4
5 6
7 8 9
2 3
4 5 6
1
8 9
2
3
4
5
6 7
8
2 3 4
5
7
2 3
4 5 6
7
8
2 3
2 3
2
3
2 3
2
2 3
2 3
2 3
DETUNE
TOTAL TUNE
DELAY VIB MODULATION
MPX CV D
C B
A
ST-SIG 0
BR- "
SY- ­ST-SIG 1
BR- "
SY- -
ST-SIG 2
BR- ”
SY- « ST-SIG 3
BR- "
SY- ­ST-SIG 4
BR- "
SY-SIG 4 ST-SIG 5
BR- "
SY- -
ST-SIG 6
BR- "
SY­ST-SIG 7
BR- -
SY- ­ST-RELEASE
- -ATTACK " -ORG
" -4'
- -8' " -16'
" -ON/OFF
T.S.-SW
" -ON/OFF
ST-SIG IN (-*293)
GND ST-SIG OUT (-291)
-i
GND BR-ORG BR-TRIG IN
NC
T.S.-ON/OFF £BRG
BR-TRIG OUT BR-16
BR-8 BR-ON/OFF
T.S.-SW ST-SIG OUT (-*294)
GND BR-EXT fcM
ST-RELEASE ST-ATTACK
D
c
B
A BR-MPXG MPX GATE
ST-MPXG
BR-SIG 7
99 m 99 ft
••
-
99 m
•f . 99 ^
99 - 99 O
99 m 99
••
ST-CV 0
99
99
99
9 9 99 A
99
9 9 9 9
99
ST-SIG 7
99
99
99
99
99
99
•• ••
SY-EXT fcM
FUNCTION
-
"5
"4
-
"0
99
99
99
99
99
99
99
99
99 O
9 9
i
Am
1
1
O
fc
7
mm
5
p
u
K
v
5 4
3
Am
I
0
CONNECTOR
42-3
47-1 49-6 49-5
11-2 11-5 11-7
11-9 11-11
40-8 38-8
15-4 40-7
38-7
16-4
40-6
38-6
17-4
40-5
38-5
18-4
40-4
384
194
40-3 38-3 204
40-2 38-2
214 40-1 38-1
224 374 37-5
12-2
25-2 25-8
25-7 46-1
36-12 36-6
37-1
46-2
124
JACK
35-9
12-5
JACK
25-3 25-6 46-3
35-8 35-10
JACK
35-1 35-2
11-6 11-8
11-10
11-3 10-11
34-2 33-2
smsj
32-2 31-2
30-2 29-2
Amrn/
28-2 27-2 09-1 09-2
09-3
Vv V
09-4 09-5
09-fi 09-7
Vil7*/
09-8 34-1
33-1
O
sj 1
32-1 31-1
O 1 1
30-1
\m mm 1
29-1
4v 1
28-1 27-1
JACK
4
A
-*r
yj
v
COLOR
RE BR
OR YE
RE GR
PU
WH
PI BK
BR
RE
OR
YE
YE GR
BL
PU
BR
OR RE
GY PU YE
GR BL
OR
OR
H;l«l
YE
OR
BL
GR
YE
OR
BL PU
GR OR
GR
BR
OR BL
GY
VJ 1
BK
1 R
BK
OR
PI PU
1 R 1
D L
GR
YE
OR
v n
RF
n
RR
o n
BK
RR RF
n u
OR
YF
* u
OR
vj n D 1
D L P| 1
U
R I
D L
OR
vj n
YF
I L_
OR
v n
R F
n l.
RR
on
BK
RE
P.C.B
CONNECTOR
3
42-
9
99
9 9
99
9 9
99
43-
9 9
9 9
99
99
99
44-
9 9
9 9
9 9
9 9
9 9
KLM-317
45-
7
mmm
KLM-291
46-
47- 1
48-
49-
9 9
COLOER
DD- RROlAr
Dn— Dnuvv
RE= RED UR= ORANGE YE= YELLOW
GR= GREEN
99
BL=BLUE PU= PURPLE
GY= GRAY WH=WH ITE
BK=BLACK
Pl= PINK
LB= LIGHT BLUE
FUNCTION
SY= SYNTHE
on-
o 1 =
2
4
5
6
1
2 3
4 5
6 7
8
9
10
1
2 3 4
5 6
7 8
»
9V
10
1
2 3 4
5 6
7
8
9 10 11
1
2
3 4 5
6
8 9
10
11
1
2 3
4
2 3
4
5
6
1
2 3
4 5
6
7 8 9
10
1
2 3
4 5
6
dnasi
STRINGS
FUNCTION
SY-ON/OFF
DAMPER
SY-ORG
TO PROTECT
FROM PROTECT
VC02 16'
-
DETUNE CUTOFF
8'
RESONANCE RELEASE
N KBD TRACK PRESET M.PROTECT
VCA EG MODE DECAY
EGINT
ATTACK AUSTAIN
PW/PWM VCO 1 16'
8'
VC02 OFF PRESET VOLUME
PRESET-CLAV
"
-
-
-
-
­/•
"
­"
-PIANO 2
-PIANO 1
-DATA
-INH2
-INH 1
-C
-B
-A +5V
-5
PRESET-CLAV
" ”
­"
-
-
­" "
-PIANO 2
-PIANO 1
-DATA
-INH 2
-INH 1
-C
-B
-A
-+5V
- -5V
ST-ON/OFF ST-SIG IN«-294
BR-ON/OFF BR-SIG IN-293
TOTAL TUNE SY-EXPRESSION ST-
BR-
­"
SY-SIG IN SY-ON/OFF
ST-
>
-
0
"
BR
" "
SY
"
-
◄ ◄
0
> t>
>
ASSING MODE VIB INT 2
TOTAL-ORG
VIB INT 1 VIB INT 3
MODULATION DELAY VIBRATO
M
IN
FREQ
CONNECTOR
47-6 JACK
12-3
SW SW 25-9
25-10 25-13
24-1 24-3
24-9 25-5
24-5 24-10
11-1
24-2
24-7 24-4 24-6
24-8 25-1
25-11 25-12
25-4 24-11 45-1 45-2
45-3 45-4
45-5
45-6
45-7 45-8 45-9
45-10 45-11 44-1
44-2 44-3
44-4 44-5
44^
44-7 44-8 44-9
44-10 44-11
35-7 35-12
36-11 36-1
26-1
JACK JACK
JACK 24-13
41-2
10-3 10-2
10-1 10-6
10-5 10-4
10-9 10-8
10-7 11-4
VR-GND
12-1
VR-CW VR-CNT
26-3 26-2
COLOR
YE BR
OR WH
BK
WH
BK RE
BR
OR WH
GR
BK BR
RE
PU YE BL
GY BR
PI
LB YE PI
BR RE
OR
YE GR
BL
PU GY
WH
BK
PI BR
RE OR
YE GR
BL
PU GY
WH
BK PI YE
OR PU
RE BR
BL
GY PU
BR YE
OR
RE
BR BL GR
YE
WH
GY PU
YE BK
BR RE
BR YE
OR
19
17
Page 19
7.SEMI-FIXED
RESISTORS
DIAGRAM
VR4
VR12
VR3
VR11
VR9
VR8
VR10
VR5
VR8
VR6
VR7
VR4
VR1
^
VR2
VR1
i
VR2
VR3
KLM-292
VR16 ~ VR30
KLM-293
KLM-294
1
VR6
»VR5
»VR4 ’VR3 »VR2
VR1
'VR7
I
i I
I
//
//
//
//
//
KLM-300
I
I
0
KLM-302
18
Page 20
8.ADJUSTMENT
PROCEDURE
Note:
This instrument
has been precisely adjusted at the factory. Therefore, do not change the position of any variable
resistors other than those necessary for servicing.
1.
Power supply (KLM-297)
(1) Use a digital
leads (possible
should
(±4.7V — ±5.3V).
(2) Check
digital
measure
KLM-301
multi-meter
multi-meter
on any of the circuit
±15V
+5V (above ground)
and
to check
(±14.7
adjust
±15.8V)
directly
VR-1
power
boards)
to
supply
which
and ±5V
with a
obtain
3) If tolerances
(2) VCA check and adjustment
and adjust
4) After off frequency
1) Set VCO OUT (302-24-13)
finishing,
are not met, set assign mode
VR-1 for the unit in question.
1
return
to
10.
waveform
with
assign mode to 1 and cut¬
to r\and
an oscilloscope
check
SY-SIG
(1
to 2,
msec/
4) Play G4 and adjust each unit's
5) Repeat to reduce
6) Check
it sounds
use WT-12.)
from Cl through
oscillation
steps 3 and 4 as many times as necessary
deviation
approximately
VR-5 for units 0—7 so that
to
frequency
within
C6 by ear to make sure
like a scale. (No need to
is
±5 cents.
C=1109Hz.
Figure 1. Attack and decay voltage values vs. temperature.
5.000V
(3) Also
-5.005V.
2.
Key assigner (KLM-300)
(1) Assign mode:
reset before
1) At assign mode ascertain
Di~D
2) At assign mode 2, play two or more keys at once, then
(±0.001V).
ascertain
8.
release
that
Switch
proceeding.
that
them
the
-5V
supply
is
-4.995
away from test position,
1, play one key at a time and
the
LEDs
and ascertain
light up in the order:
that
the LEDs
then
cm, 0.65V/cm).
(3) Resonance
2) Play key C3 and ascertain form
0-7.
3) If tolerances unit in question.
4) After finishing,
1) Set PW/PWM nance
with a digital
and cutoff
amplitude
adjustment
to 8. Measure
freq fine to obtain
that
is
are not met, adjust
set waveform
to 10, cutoff
multi-meter
0.65Vp-p
cutoff
and adjust
sawtooth
(±0.05V)
VR-4
to PW.
freq to 5, and reso¬
freq CV (302-24-1)
OmV (±10mV).
cutoff
wave¬
for units
for the
freq
7) Set KBD TRACK
(6) EG INTENSITY
that it changes
8) After finishing,
1) Set cutoff PW/PWM
SY-SIG O.IV/cm)
2) Play any single key and ascertain tion frequency
If not within
3) After
finishing,
to
OUT
and a frequency
to a
check and adjustment
frequency
10, and
with
these tolerances,
to HALF
1/4 scale.
switch
for units 0—7 is 5.5kHz—6.0kHz.
set EG INT to 0, cutoff
KBD TRACK
to 0, EG intensity
resonance
an oscilloscope
and
counter.
adjust
check
to OFF.
to 10. Check
(20psec/cm,
that the oscilla¬
VR-6.
to see
to +5,
freq to
light up beginning
key released.
(2) KBD SPLIT:
strings) as follows.
1) KBD SPLIT at
2) KBD SPLIT at
3.
sound.
3) KBD SPLIT at sound.
4) Check split between adjust VR-1 as necessary.
Programmer (KLM-292)
from the position
Check
to see that there
each
<
t>— all 61 keys sound.
— only
>-only
C3 and B2 for all 8 units.
section
is a
of the last
(synthe,
lower
upper
two
three
clear and accurate
brass,
octaves
octaves
If
not,
(4) Cutoff
2) Measure meter
(±80mV).
3) Measure oscilloscope
Play any single
waveform
(±10mV).
4) If tolerances unit in question.
frequency
1) Set resonance freq OmV ±10mV).
resonance
and
SY-SIG
amplitude
to about
CV (302-24-3)
adjust
(1
are not met, adjust
adjustment
to 10, PW/PWM
resonance
OUT
msec/cm,
key and ascertain
6.3
(ascertaining
Measure
(302-24-13)
0.15V/cm).
(sine
SY-SIG
with the multi¬
to obtain
that the VCF
wave)
is 0.15Vp-p
VR-3
to 10, and cutoff
that
OUT
with
this
(302-24-
for the
8.00V
gives
an
(7) EG check and adjustment
10, PW/PWM to 5, and resonance
1) Set attack keys simultaneously
time tolerances, the potential
supply
pattern
VR-8 in accordance
2) Set attack Play any single key and ascertain
time is 20—30 ances,
is 20—25
to 10 and sustain
use a digital
difference
and the attack
closest
to 0, decay
use a digital
to the
seconds.
and ascertain
seconds.
with the chart in figure
If
multi-meter
to 0.
to 0. Play any eight
that the attack
If not
multi-meter
between
common
keyboard
to 10, and sustain
not within
within
to measure
the +5V power
line (the chart
side).
that the decay
these toler¬
to check
Adjust
1.
these
to 0.
the
Temperature
Tolerance:
Test
point
1
2
3
©
JD
6
7
VC02.SCALE VCOI.
WAVE FORM
^VCOI.SCALE
PRESET PW/PWM KBD TRACK
LFO SPEED
VOL
Within ±1mV of value on graph.
PIANO
+ 1.25
-1.25
0
+2
-5
‘+5 HALF
1
4’
PW
8'
4
-10 (LOW SPEED)
PIANO
+5
-1.25
-5
+2
-3.95
-5 FULL
OFF
2
PW
16'
( V J
+5
-1.25
-5
4
-2 (+2.6V)
0
CLAV
OFF
PW
16'
OFF
2
(1) With
so that
0.00V (±60mV).
(2) With
INT CV is +5.00V
(3) With
is -5.00V
(4) Adjust
(5) Reset
ment.
(6) PW/PWM
Set VCO 1 scale to 16', waveform
EG INT (EG INTENSITY)
EG INT at -5, adjust
EG INT at +5,
V
EG
INT
(±60mV).
R-3 if these tolerances
EG INT to standard
CV adjustment
CV
(302-24-4
(±60mV).
ascertain
at 0, adjust
or 29243-3)
VR-2 so that
that
cannot
0
setting
EG INT CV
be met.
after
to PW, and PW/
VR-1
the EG
adjust¬
is
13) with
and a frequency
2) Play any single key and adjust filter
WT-12) is C=523Hz
3) Adjust
3.00V 24-1).
4) Play any single key and adjust 7 to obtain
frequency.
5) With cutoff
an oscilloscope
oscillation
cutoff
(±10mV)
counter.
frequency
for units 0-7.
freq and cutoff
for the cutoff
C=4186Hz
freq CV (302-24-1)
for the filter oscillation
(1 msec/cm,
VR-2 so that the
(measured
freq fine to obtain
freq
VR-7 for units 0—
at
OmV (±10mV),
O.IV/cm)
with
CV (302-
potential
supply
pattern
with the chart in figure
3) With from
smooth
4) Set attack
With should
between
5) After
0
difference
and the decay
after attack).
attack
change
release
be no greater
finishing,
at 0 and
to 10 and check
to 0, decay
units.
in
time
return
sustain
at about
between
common
Adjust
1. decay
level for units 0—7.
to 0, and sustain
than about
release
the
line (the chart
VR-9 in accordance
at 0, turn
to see that
5
seconds,
1
to 0 to return
+5V
there
second
power
sustain
is a
to 0. there
error
to
(D
@
©
©
©
©
16
DETUNE
SUSTAIN
RESONANCE
CUTOFF RELEASE
DECAY EG INT
ATTACK EG MODE
O: Need adjustment.
Others require check only.
FREQ
0
-5
+5
+2.74 +0.64
* 1
+0.65
+3.2
0
+5
-5
+3.07 + 1.94 +0.18
-5
-0.66
+5
-A“\-
0
-4.3
+5 +3.86
-5
-5
-0.8 +5
PWM to 10. Use a digital
that
(±50mV).
4.
Synthesizer (K LM-302)
(1) Offset check and adjustment
1) Set VCO waveform
2) Play any single
PW/PWM
Adjust
CV (301-25-1
VR-4 if necessary.
to 0 (and set other controls
Check
scope (0.1 sec/cm,
output
SY-SIG
pulse is within
OUT
50mV/cm).
key and ascertain
multi-meter
or 292-43-6)
to r\, set cutoff
to
standard
(302-24-13)
±50mV
for units 0—7.
to ascertain
is
frequency
settings).
with
that
2.9V
oscillo¬
the DC
(5) KBD TRACK
adjust the oscillation
6) Repeat sary to reduce
1) Set cutoff
2) Play C=523Hz
tion frequency
3) Adjust oscillation
KBD
G3 and
cutoff
steps 2 through
freq to about
VR-2 for units
freq fine to obtain frequency
deviation
adjustment
TRACK
adjust
(measured
of unit 0.
frequency
C=523Hz
of unit 0.
5 as
to within
to FULL,
6.3, and resonance cutoff
with WT-12) for the oscilla¬
1—7 so that
is C=523Hz,
many times as neces¬
freq
±5 cents.
PW/PWM
fine to obtain
to
each
under
for
to 10,
10.
unit's
the
(8) Presets
the standard
1) Play keyboard,
2) Based on the data on the following and adjust
Adjust checked.
two places.
circled
setting.
using piano 1,2,
test
points
points
Adjustment
on the page after
only; others
voltages
and clav.
are valid
should
page, check
next.
only be
up to
same conditions
as
above.
19
KLM-292
Page 21
5.
Brass (KLM-293)
4) Check to see that there is a smooth
reduction
in
(1) Offset check and adjustment
1) Set cutoff (293-36-1)
0.1 V/cm).
2) Play any single key and ascertain output
3) If not within tolerances,
Note:
in rapid
5-second
(2) VCA check and adjustment
1) Set scale to 8', cutoff
freq to 0 and measure
using
pulse is within ±200mV.
Pulse output
sequence.
gap between
an oscilloscope
decreases
Therefore,
BR-SIG
(0.1 sec/cm,
that the DC
adjust VR-10.
if a
leave at least a
playing the key.
freq to 10, and other con¬
key is played
OUT
waveform
(2) Bowing check and adjustment
turn KBD filter balance from 10 to 0.
5) With KBD filter balance to see the sawtooth
±0.05Vp-p
6) If not within KLM-317 unit in question.
7) After finishing,
1) Turn on "bowing", off" and use an oscilloscope OUT (294-35-12).
amplitude
for units 0~7.
tolerances,
set KBD filter balance to 10.
for units
at 0,
waveform
adjust
"ensemble
0~7
play C3 and check
amplitude
off" and "vibrato
to measure
VR-28
when
is
for the
ST-SIG
you
0.2V
trols
OUT using an oscilloscope
cm).
2) Play C3 and check sawtooth amplitude
(±0.15V)
3) If not within tolerances, in question.
(3) Resonance
1) Set cutoff normal settings)
cm, 0.2V/cm)
to their
for units 0^7.
check and adjustment
normal
to
ascertain
freq to 7 (leaving other controls
and use an oscilloscope
to measure
settings.
that
adjust VR-9 for the unit
BR-SIG
Measure
(1 msec/cm,
waveform
it is 0.65Vp-p
OUT.
BR-SIG
0.65V/
output
at
the
(1msec/
2) Play C3 and check to see that you obtain following
settings
listed.
outputs
with
level and tone
the
at the
2) Play any single key and check for a smooth crease in ringing with oscillation
turn resonance
3) If oscillation set scale 8',
resonance
0.65Vp-p
(4) Cutoff
1) Set scale 8', 16' to off and resonance ing other controls frequency
(293-36-1).
up from 0 to 10.
does not occur at the right point, 16' to off, cutoff
to 8. Then
for the resonance
FREQ check and adjustment
at
counter
adjust
the normal
to measure
at
freq to 5, and
VR-11
waveform
settings).
7^8
to 10 (leav¬
BR-SIG
as
to obtain
amplitude.
Use a
OUT
in¬
you
6.
2) Play any key, set cutoff see that / is 7Hz or lower. With cutoff freq at 5,
/ should
/ should be 5^6kHz.
/ = oscillation
3) If not within and resonance
^200Hz VR-8 to obtain
10
.
Strings (KLM-294)
be 180~200Hz.
tolerances,
to 10; adjust VR-12 to obtain 180
when cutoff
frequency
5~6kHz
freq to 0 and check to
With cutoff freq at 10,
set scale 8', 16' to off
freq is at 5. Then adjust
when cutoff
freq is at *
(1) Gate, filter check and adjustment
1) Turn on both "vibrato and check
semble are applied to the sound.
2) Use an oscilloscope measure ST-SIG
3) Set KBD filter balance
obtain
0.8p-p for units
a
to see that
sawtooth
0^7
OUT (294-35-12).
waveform
off" and "ensemble
neither
(1 msec/cm,
to 10 and adjust VR-5 to
.
vibrato
amplitude
0.1 V/cm)
of 0.6~
off"
nor en¬
to
3) If not within
20
(gain), and VR-8 (/0) as necessary.
4) After and tone to 10.
finishing,
tolerances,
set bowing
adjust VR-6 (Q), VR-7
to off, level to 10,
Page 22
(3) Bias level check and adjustment
(4) Stretch
tuning
1) Set scale to 8', bowing to on, level to 10, 10, and KBD filter balance to 10, then check the
following, in the lower part of the keyboard.
2) Vibrato Connect
and check to see that the waveform
ted. distortion.
3) Ensemble Check for waveform
connected
Adjust
playing
bias
oscilloscope
1
bias
to Q2 (2SC945)
VR-3
eight or more
to Q11 (2SC945)
as necessary
distortion
emitter.
notes together
is
not distor¬
to
eliminate
with oscilloscope
Adjust VR-1
tone to
emitter
8.
To be performed and VCO
1) Play C6 and adjust (±2.5 cent) reading for units 0—7.
2) Play C3 and adjust VR-7 to obtain a 0 cent (±2.5 cent) reading for units 0—7.
3) Play Cl and adjust
(±2.5 cent) reading for units
4) Repeat steps 1 through necessary to check other keys.
Flanger (KLM-291)
2 tuning.
as
follows after completing
VR-6 to obtain
VR-5 to obtain
0—7.
3
several times.
VCO 1
a
+10 cent
a
-7.5 cent
It is
not
if necessary
4) For ensemble Q6 and adjust the same way.
7.
Signal Generator
(1) Antilog amp adjustment
1) Measure meter, connecting positive ohms, connected
2) Play C3 eight times and adjust total tune to ob¬
to
remove distortion.
2
and ensemble
VR-4 and VR-2, respectively,
(KLM-301)
anti log output
side to the exposed
to
3, check Q13 and
with
the GND side to -1IV and the
1C 4558 no.2 pin).
a
lead of R57 (47
digital
multi¬
(1) Clock frequency
in
(2) Mix level check
1) Set intensity measure
TP6 or 7).
2) Ascertain manual is at 0, and 0.9—1.1kHz
at 10. If not within tolerances, frequency) sary.
1) Set VCO 1 waveform synthe,
the flanger's
and check
check
to 0 and use a frequency
that frequency
and V-4 (fluctuation
clock frequency
is
to
n_,
synthe
counter
(KLM-291
90—110kHz
when manual is
adjust V-3 (center
range) as neces¬
apply
out with
flanger
an oscillo¬
when
to
to
tain 6.00mV tune knob should be within center.
3) Set VCO 1 scale to 4'.
1. Play C6 eight times and adjust
4.800V
2. Play C3 eight times and adjust
600.0mV
3. Play Cl eight times and adjust
150.00mV
4. Repeat steps 1 through sary to meet tolerances.
(±0.003V).
(±0.1 mV) antilog output.
(±0.3mV).
(±1 mV).
±1 scale marking
3 as
many times as neces¬
The total
VR-6 to obtain
VR-7 to obtain
VR-5 to obtain
of
(3) Feedback
scope (1 msec/cm,
2) Play C4, set flanger manual from 0 to 10, confirming
form just about disappears
3) If you don't get the kind of pattern above illustration mains,
minimum reduce amplitude
1) Apply manual to 0, and check synthe out.
turn
adjustment flanger
amplitude,
manual,
0.1 V/cm).
and the
then adjust VR-2 to further
to minimum.
to synthe,
intensity
at
n_
stopping
set both intensity
to 0, and turn
that the wave¬
about 4 (3—5).
shown in the
waveform
at the point
still re¬
of
and
(2) VCO 1 tuning
1) Set assign mode to 2
2) Start with unit 0.
1. Play C6 and adjust VR-2 to obtain cent) reading.
2. Play Cl and adjust VR-1 to obtain cent) reading.
3. Repeat necessary cents.
3) Repeat 1-7.
and test with tuner.
a 0
a 0
steps
the above
1
to bring C2, C3, C4, and C5 with ±3
and 2 above as many times as
adjustments
(1—3) for units
cent (±1
cent (±3
2) Turn feedback the flanger begins self-oscillation the knob scale (without
3) Adjust wrong point.
VR-1
from 0 to 10 and ascertain
at or
playing a key).
if self-oscillation
occurs
that
above 7 on
at the
(3) VCO 2 tuning
1) Set assign mode to 2 and test with tuner.
2) Set PW/PWM VCO 1. Set VCO 2 scale to 4' and tune in the
same was as for VCO 1.
to 10 to eliminate
the sound
of
21
Page 23
9.PARTS
PARTS NAME
SPECIFICATIONS
LIST
— •
PARTS CORD
CTY
PARTS
NAME
SPECIFICATIONS
PARTS CORD
CTY
1/4W 5.6MS2JT
10MS7K T
RKC1/8
B6 4.7Kf2J
B6 100KUJ B8 10KfZJ B8 lOOKiiJ
LR 301/8S
lOOftJ
1/4W 10057 F T
499 562
1.00KHF
.
1/4WC
1.30
1.50
3.48
4.99
9.09
10.0
11.0
11.7
15.0
20.0
24.3
24.9
30.1
39.2
40.2
41.2
46.4
49.9
63.4
75.0
80.6
100
130
160
162
187
200 205
232
124
267 301 324 383
392
487 576
649
1.00K57 100K57
200K57
CARBON
1KHJ
METAL
B T
RESISTORS
{Not listed)
SOLID RESISTORS
BLOCK RESISTORS
LINEAR
FILM RESISTORS
RESISTORS
11103756
11113810
13534470
13536100
13635100 13636100
13133100
13134100
12613100 12613499
12613562
12614100
12614130
12614150 12614348
12614499
12614909 12615100 12615110
12615117
12615150
12615200
12615243 12615249
12615301 12615392
12615402
12615412
12615464 12615499
12615634 12615750 12615806
12616100
12616130
12616160 12616162
12616187 12616200 12616205
12616232
12616124 12616267 12616301
12616324
12616383
12616392
12616487
12616576 12616649
12164100 12166100 12166200
7
21
10
16
18
55
32
* 8
36
10
2.2KJ7
4.7 10
1
15
22 47
100
1
220
9
1
1M9
60 B 100KJ7
2
220
||
2
50V 0.001 mF K
9
0.0012
0.0018
0.0022
1
8
0.0033
0.0039
1
0.0047
0.0056
1
0.0082
2
0.01
1
0.012
1
0.022
1
4
0.033
0.047
1
0.056
2
0.068
1
0.1
6
1
|
1 1
2
1
1
50V I.OyF T 25V 3.3
16V 10
25V 470
1
50V 0.22
2
0.15
47
100
220
0.47
MYLAY
ELECTROLYTIC
Y
T MS
CAPACITORS
CAPACITORS
35203222
35201247 35201310 35201315 35201322 35201347
35201110 35203122
35201510 35001410
35001422
20003410 20003412 20003418
20003422
20003433
20003439
20003447 20003456
20003482 20003510 20003512
20003522
20003533 20003547
20003556 20003568
20003610 20003615
23015110
23011133
23007210 23007247
23007310 23007322
23111447 23215022
23015047
17
32
11
3
21
11 13
30
14 17
14
18
17
17
30
32
14
3
17
11 59 34
42
4 2
16
3 2
3
1
1
1
9
8
|
1
1
1
1
1.0
8 2
1
MD
CERAMIC
1
|
50V 10PF
1
8
1
2 2
2
1
8
1
i
25V O.I^F
r
22 33
100
150 220 330
470
680
0.0047jiF
F
K
KB
ZFZ
STYROL
2
4
1
50V 1000PF GT
680
POLYSTYRENE
CAPACITORS
CAPACITORS
CAPACITORS
23015110 23015122
21011210 21012222 21012233
21012310 21012315 21012322
21012333 21012347
21106368
21204610
20502310 20502368
1
11
12
19
32
66
9
3 3
3
9
1
9 3
2
1
10 0
B22057 (R)
470
SEMI-FIXED
RESISTORS
35203122 35203147
[
50V 6200PF GY
1
1
1
22
28001462
16
Page 24
PARTS NAME
SPECIFICATIONS
PARTS CORD
I
CTY
. PARTS
SPECIFICATIONS
NAME
PARTS CORD
CTY
POLYPROPYLENE
100V 0.015mFGT
MC 14001 B
14007 UB 14011B 14013
14023 14024 14028
14042 14044 14046 14050
14051 14066 14068 14069 14070
14174 14503 14514
14532
LM 130600
130600
339 C
/iPC 393
UB
CAPACITORS
1C
26001515
32020011 32020001
32020002 32020022 32020010
32020012
32020005
32020018 32020039
32020036 32010014
32020015
32020009
32020035
32020003
32020017 32020028
32020029 32020030 32020020 32022093
32022091 32021006
32001027
5
1 27
12
21
14
40
2
6
2 2
9
1
1
2
3 5
4
1 1
1 1
4 9
2 7
PR 5534S
3432S
HC—18/U6.00MHZ
40P
N-SB2
EVH- 5LA802
K164A0006A K161A
E3JXC03
6LA802 COAK15
(05)
{0}
ELECTRIC
POTENTIONET
A14
B14
C14 A15
B15
A16
B16
A26
B15 B14
-10KB x4
-10KA
-10KB 10KB x 2
LED
RESONATORS
1C SOCKET
BATTERY
ERS
31200700 31200900
33500500
48001800
52000600
36011500 36009400
36011400 36005900 36005700
36006000 36006100
36006200
36012800
36005300
36202400
36201300
|
1
1
1
358
NJM4556
4558
CA 3140
TL 071 TL 072
MN 3004
CA 3080
MPD 5101 juA 726
AN 829
SAD 1024 A MPD 8048C-203 TC 9130P
SSM 2044
.
DV
E
E
C-E
32002026 32009002
32009003
32024004 32021013
32021011 32002006
32024007
32001017
32023004
32002015 32033001 32001029
32003004 32029004
55
17
21
2
1
2
4
1
2
1
2
1 1
3
9
SRM-1034230
KHC-11901
SSB
250V 0.5A
-1033
12208
12307
12202
2.0A
ROTARY
TACT SW
SLIDE SW
FUSE
SW
37001500 37002300
37503400
37001000
37301600 37301200
46300200 46300400
32
3
1
2
1
MPC 14315H MA 7915
2SA 733 AK
2SC-945
2SK 30A TM-GR
798 G
699 Q
L
1583 G 1226 AQ
CKC
K
TM-O
Selected
TRANSISTORS
DIODES
32001005 32021009
30000727 30001007 30000317 30200334
30200399
30201107 30200517 30600232 30600115
28 25
52 73
45 20
19
16
1
|
1
|
ESK -3010
L-1205-6P
1
1
NSKE-135
1 KOC-C40230
350V
JOYSTICK VR MOUNTING
12017
KEY BOARD
LNG BOARD
SPARK
RUBBER
KITTER
|
FEET
42001500
46001700
21900100
BOARD
64026700
50002100
1
1
1
1
555 885
RD 47 EB2
12
LM 336 Z
ZENER
DIODES
31000100 31000200
31101000 31101100
ROTARY
252
6
180 X-1936
KOC-E40026
SLIDE SW KNOB
KNOB
62007600
62001500
Page 25
PARTS NAME
SPECIFICATIONS
PARTS CORD
CTY
PARTS NAME
SPECIFICATIONS
PARTS CORD
JOYSTICK
KOC-E40035
(DIC504) Dark Brown KOC-E30019 (
(
Green Orange
Gray
SSB 2=9 m/m
547) Ivory
158) Red
TACT SW KNOB
SLIDE SW KNOB
RADIATION
KNOB
MASK
62005300
62001900 62002900
62003100
62003200
62003400 62003300
62001800
KOC-C40350
KOC-C30162
KOC-D20021
KOC-E40068
METAL
KOC-C40229
METAL
WOODEN
CONTROL
FITTING
FITTING
MUSIC STAND
OF KLM297
CASE
PANEL
OF CONTROL
64033000
64032800
64507100
64605300
64026600
PANEL
KOC
FUSE 2A KOC-F40057 KOC-F30013
KOC-F40050,
2P SG-7501 3P SG-7617
F40161
F40151
SG-7721
H40001
SERIAL
TACT SW MASK
FUSE SEAL
NUMBER
PHONE JACK
PLATE
55003000
55002900
58006500
45000100
, 45000400
45001200
7
6
1
1801-0121
KLM- 291
292 293
294
297 298 299
300 301
302
POWER SW
37503800
34014203
34014304 34014404 34014503
34014603 34014703 34014800
34014903
34015003 34015104
317
263 340 341
343
KOC-C20095
_
KOC-C30161
KOC-C30161
FRONT
METAL FITTING
METAL FITTING
PHONEJACK
PANEL
OF FRONT
OF FRONT
PLATE
34016800 34013700
34017000
34017100 34017200
64047500
PAN
64033200
PANEL(L
64033100
EL(R)
)
KOC-C30160
KOC-C40350
METAL FITTING
OF KLM297
64032700
64032900
24
Page 26
25
Page 27
Page 28
5611BHU
PRINTED
IN JAPAN
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