Korg MONOLOGUE Service Manual

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C C
B B
A A
DESIGNED BYDRAWN BY CHECKED BY CHECKED BY MODEL
DRAWING No. DATE
TITLE

KOD-A31248


*
REVISED BYDATEREMARK REVISAL REASON


CV_PITCH1
R345
220 1%
R359
3.3K 1%
C253
0.01u
C249
4700p 5%
TL084CPT
5
6
7
IC17B
TL084CPT
10
9
8
IC17C
TL084CPT
12
13
14
IC17D
TL064CPWR
3
2
1
IC27A
C228
1u Z
C227
1u Z
-5V
R99
100K 1%
R102
100K 1%
SAW1
R344
1K
R343
1K
TRI_RAW1
TRI_RAW1
10uNP 16V
C69
TL084CPT


IC17E
TL064CPWR
3
2
1
IC20A
TL064CPWR
IC20B
R367
100K 1%
CV_PW1
CV_PW1
TL064CPWR
10
9
8
IC20C
TL064CPWR
12
13
14
IC20D
R370
1K
R349
1K
R369
2.7K
R347
2.7K
R360
100K 1%
R346
100K 1%
220K
R348
R361
100K 1%
TRI1
TL064CPWR


IC20E
R305 NU
R300
1K
SQR1
C266
10u Z
C254
10u Z
+5V
-5V
C236
10u Z
C225
10u Z
+5V
-5V
0.45-1.55
1.1vpp
1M 1%
R405
D32
D
D30
D
D29
D
D31
D
R403
10K 1%
TL084CPT
5
6
7
IC24B
R404
100K 1%
1M 1%
R408
TL084CPT
12
13
14
IC24D
R378
R394
100K 1%
R395
150K 1%
R377
150K 1%
TL084CPT


IC24E
C286
10u Z
C270
10u Z
+5V
-5V
CV_VCA1
C130
0.01u
2SA1618GR
Q38
R410
1K
R409
47K
-5V
R420
1K
TL084CPT
3
2
1
IC24A
R419
100K 1%
R418
100K 1%
R414
100K 1%
R413
100K 1%
C296
47p 5%
C295
47p 5%
C278
1u Z
C279
1u Z
-5V
TRI_RAW1
SAW1
SQR1
TRI1
R144
0
R149
0
SND1
SND2
RTN
VCO1
WAVE_B1
WAVE_A1
CV_VCA2
2SA1618GR
Q39
R422
10K 1%
-5V
R415
1K
TL064CPWR
5
6
7
IC27B
R416
100K 1%
R417
100K 1%
R411
100K 1%
R412
100K 1%
C293
47p 5%
C294
47p 5%
C274
10u 20%
C276
1u Z
C277
1u Z
-5V
SAW2
SQR2
TRI2
R145
0
R150
0
VCO2
WAVE_B2
WAVE_A2
C171
1u Z
C170
1u Z
-5V
R66
100K 1%
R69
100K 1%
SAW2
+5V
+5V
R80
100K
R81
100K
R89
2.2K
D6
D
D7
D
R88
100K
R87
100K
R86
2.2K
R76
220K
C59
100p 5%
C60
100p 5%
TRI_RAW2
TRI_RAW2
10uNP 16V
C48
CV_PW2
R227
NU
R223
1K
SQR2
C172
10u Z
C169
10u Z
-5V
TL084CPT
3
2
1
IC8A
TL084CPT
5
6
7
IC8B
TL084CPT
10
9
8
IC8C
TL084CPT
12
13
14
IC8D
TL084CPT


IC8E
C203
10u Z
C189
10u Z
+5V
-5V
TL064CPWR


IC12E
CV_PW2 TRI2
TRI_RAW2
TL064CPWR
3
2
1
IC12A
TL064CPWR
IC12B
TL064CPWR
10
9
8
IC12C
TL064CPWR
12
13
14
IC12D
CV_VCA
TL084CPT
10
9
8
IC24C
CV_VCF
470
R160
TL084CPT
3
2
1
IC21A
R358
10K
R357
10K
Q33
HN1B04FU-GR
Q15
+5V
CV_PITCH2
R256
3.3K 1%
C188
0.01u
C187
4700p 5%
R248
1K
R247
1K
Q31
+5V
+5V
2SA1162-GR
Q18
+5V +5V
R127
100K
R128
100K
R140
2.2K
D11
D
D12
D
R139
100K
R138
100K
R137
2.2K
R125
220K
R124
220K
C88
100p 5%
C89
100p 5%
2.2K
R306
150
R310
2.2K
R228
150
R229
R167
0
R169
0
R421
1K
R171
47K
2SA1162-GR
Q24
2SA1162-GR
Q23
R176
3.3K
R175
560
R174
2.2K
C133
0.01u
2SA1162-GR
Q26
2SA1162-GR
Q25
R179
3.3K
R178
560
R177
2.2K
VCO2
VCO1
RNG_ON
RTN
R170
0
TL084CPT
5
6
7
IC21B
TL084CPT
12
13
14
IC21D
TL084CPT


IC21E
R132
4.7K
TL084CPT
10
9
8
IC21C
2SA1618GR
Q16
R350
1K
-5V
R351
1K
R122
100K 1%
R129
100K 1%
R123
100K 1%
R133
100K 1%
2SA1162-GR
Q34
R372
3.3K
R371
560
R362
2.2K
CV_RES
R135
47K
C86
NU
C95
NU
FB
R270
100K 1%
R273
1K
R252
1K
R272
2.7K
R250
2.7K
R257
100K 1%
R249
100K 1%
220K
R251
R258
100K 1%
EXT1
C264
10u Z
C263
10u Z
+5V
-5V
TL064CPWR


IC27E
C288
10u Z
C289
10u Z
+5V
-5V
R246
240 1%
C292
10u 20%
C291
10u 20%
C275
10u 20%
C271
10u 20%
470K
R274
220p 5%
C204
D19
D
SYNC_PH
SYNC_PH
SYNC_OFF
+5V
+5V
INT_VCF
INT_VCO2
INT_VCO1
AD_VCF
0
R107
R109
0
R131
10K
CV_NOISE
39K
R342
R376 100K 1%
R375
10K 1%
AD_VCA1 AD_VCA2
RAW
OSC_TR1
VCO1
VCO2
RING
VCA1 VCA2
VCF
R244
0
TL084CPT
3
2
1
IC17A
1.1vpp
1.1vpp
1.1vpp
R231
100K
SYNC_OFF
D15
D
R311
100K
D22
D
R301
180
R302
180
0.047u
C216
0.047u
C217
R225
180
R226
180
0.047u
C167
0.047u
C168
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9
VEE
7
XCOM
14
YCOM
15
ZCOM
4
VCC
16
GND
8
IC16
CD74HC4053PWR
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9
VEE
7
XCOM
14
YCOM
15
ZCOM
4
VCC
16
GND
8
IC25
CD74HC4053PWR
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9
VEE
7
XCOM
14
YCOM
15
ZCOM
4
VCC
16
GND
8
IC26
CD74HC4053PWR
0X
12
1X
13
0Y
2
1Y
1
0Z
5
1Z
3
INH
6
A
11
B
10
C
9
VEE
7
XCOM
14
YCOM
15
ZCOM
4
VCC
16
GND
8
IC7
CD74HC4053PWR
3.3VA
3.3VA
3.3VA
3.3VA
3.3VA
C96
NU
R114
1K
R336
6.8K
R113
5.6K
R335
6.8K
R334
18K
10K
+5V
-5V
2SA1162-GR
Q9
C247
1u Z
R72
1K
R233
6.8K
R71
5.6K
R232
6.8K
R234
18K
10K
+5V
-5V
C185
1u Z
D27
D
D28
D
D24
D
D25
D
D17
D
D18
D
D20
D
D21
D
D26
D
D16
D
0.45-1.55
C193
1u Z
C262
1u Z
C65
1u Z
C104
1u Z
OSC_TR2
2SC2712-BL
Q11
2SC2712-BL
Q10
15K
R158
100 1%
R159
22K
R153
61.9K 1%
R142
180K
R97
100 1%
R147
8.2K
R163
100 1%
R164
33KR162
100 1%
R152
61.9K 1%
R146
47K
R110
180K
R100
6.8K
R105
1.8K
R118
0.01u
C78
27KR161
RAW
C280
10u Z
C281
10u Z
22K
R121
+5V
R166
100K 1%
R172
100K 1%
2200p 5%
C175
DTC114EUB
DT4
DTA114EUB
DT5
C176
100p 5%
SYNC_PH
470K
R255
2
HN1B04FU-GR
Q12
FB
D10
D
D9
D
D8
D
-5V
-3.3V
-3.3V +3.3V
3.3VA3.3VA
+5V
-5V
D13 D
D14 D
C124
10u 20%
OUT
3
4
52
NJM13700M
IC22A
7
8
NJM13700M
IC22B
14
13
1215
NJM13700M
IC22C
10
9
NJM13700M
IC22D
11
6


NJM13700M
IC22E
AD_OUT
220KR165
NU
EXT_ON
SAW1
SQR1
TRI1
SAW2
SQR2
TRI2
27K
R119
27K
R112
100p 5%
C107
100p 5%
C99
C100
1000p
C102
1000p
LINE_IN
EXT1
61.9K 1%
R222
NU
33KR168
TL064CPWR
10
9
8
IC27C
2SA1618GR
Q36
R384
1K
R396
47K
R373
10K 1%
R374
10K 1%
-5V
R379
1K
R385
18K1% ThinFilm
R386
18K1% ThinFilm
R397
18K1% ThinFilm
R398
18K1% ThinFilm
330p 5%C282
330p 5%
C283
C116
0.01u
2SA1162-GR
Q21
2SA1162-GR
Q22
2.2K
R143
R156
560
R157
2.2K
3.3VA
VCA

Korg MONOLOGUE Specifications

General

Product type	Analog synthesizer
Product color	Silver
User presets quantity	20
Keyboard number of keys	25
Preset programs quantity	80
Display type	OLED
Built-in display	Yes
Headphone outputs	1
Battery type	AA
Operating time	8 h
DC input voltage	9 V
Power source type	AC, Battery
Number of batteries supported	6

Weight and Dimensions

Depth	276 mm
Width	350 mm
Height	76 mm
Weight	1700 g