Alto MS10MA, Service Manual

Page: 15 / 48

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MS10MA/MS12MA-PRE
MS10MA/MS12MA VER061212
4 4
Titel
Size
Date
File
Model NO:
A3
5-Feb-2007
ENCODER.SCH
Revision
Sheet of
Drawn By XiaoPingHuang
C208
47u/25V
INPUT-ENCORDER
1
2
3
4
5
6
SW200
288S0366
R226 1K
R227 1K
R228 1K
R229 1K
-8V
C217
1.0U C218
1.0U C219
1.0U
C220
1.0U
C221
1.0U
X
0
1
3
X
1
1
4
X
2
1
5
X
3
1
2
X
4
1
X
5
5
X
6
2
X
7
4
IN
H
6
A
1
1
B
1
0
C
9
V
E
E
7
X
3
V
C
C
1
6
G
N
D
8
U202
4051
X
0
1
3
X
1
1
4
X
2
1
5
X
3
1
2
X
4
1
X
5
5
X
6
2
X
7
4
IN
H
6
A
1
1
B
1
0
C
9
V
E
E
7
X
3
V
C
C
1
6
G
N
D
8
U203
4051
+8V
B
B
C
C
E
E
Q200
2SC2412
R220
10K
C216
1.0U
R
2
2
2
1
0
K
R
2
2
3
1
0
K
R
2
2
4
1
0
K
R
2
2
5
1
0
K
+8V
R221 10K
-8V
-8V
A1
A2
A3
A4
A5
A6
A5
A6
A6
A10
A11
A3
A13
A2
A15
A15
+8V
+8V
-8V -8V
-8V
-8V
-8V
R215
100K R216
0R R217
0R
R234
0R R235
0R R233
100K
C226
0.1u cer
C227
0.1u cer
C215
0.1u cer
C214
0.1u cer
R219
0R
R236
0R
C213
0.1u cer
C225
0.1u cer
C203
0.1u cer
C202
0.1u cer
3
2
1
8
4
U200A
4580
C200
470nF
R205
22.0K
C201 10nF
R203
1.00K
R202
100.0K
R200
1.50K
R207
1.00K
R211
220.0K
R210
1.00K
R212 1.00K
C204
10NF
5
6
7
U200B
4580
+8V
-8V
C210
2.2U/25V
C209
2.2U/25V
TR203
J176
TR202
J176
C207 10P
R218
1M
R230
1M
R231
1M
R232
1M
+8V
A
A
K
K
D200
DIODE
D201 DIODE
A4
A2
A3
A5
A6
A11
A10
A13
A15
D202 DIODE
D203 DIODE
D204 DIODE
D205 DIODE
D206 DIODE
D207 DIODE
D208 DIODE
D209 DIODE
D210 DIODE
D211 DIODE
D212 DIODE
D213 DIODE
D214 DIODE
D215 DIODE
D216 DIODE
D217 DIODE
D218 DIODE
C222 10U
C223 10U
C224 10U
C228 10U
D219 DIODE
D220 DIODE
RC0805
R208
0R
R206
0R
C45,C46,C47,C48,C49,C50
LAYOUT
R201
10K
R204
50K
HI PASS GAIN
BASS BOOST GAIN
C209 C210 CLICK NOISE
HIGH PASS CONTROL
BASS BOOST CONTROL
L=ON,H=OFF
L=ON,H=OFF
R209
10K
C211
2.2U/25V
TR200
J176
R213
10K
C205
27nF C206
27nF
C212
2.2U/25V
TR201
J176
L=ON,H=OFF
HI ENAHANCER GAIN
HI ENAHANCER CONTROL
LOW PASS CONTROL
L=ON,H=OFF
LOW PASS GAIN
ENCODER SET1
ENCODER SET2
ENCODER SET3
ENCODER SET4
ENCODER SET5
ENCODER SET6
ENCODER SET7
ENCODER SET8
ENCODER SET9
ENCODER SET10
ENCODER SET11
ENCODER SET12
ENCODER SET13
ENCODER SET14
ENCODER SET15
ENCODER SET16
ENCODER SET1:FULL RANGE
ENCODER SET2:VOCAL 1
ENCODER SET3:VOCAL 2
ENCODER SET4:GUITAR 1
ENCODER SET5:GUITAR 2
ENCODER SET6:PIANO
ENCODER SET7:DSW
ENCODER SET8:TWIN
ENCODER SET9:STAGE
ENCODER SET10:BOOM
ENCODER SET11:SIDEFILL
ENCODER SET12:ANTIFEEDBACK
ENCODER SET13:LOUDNESS
ENCODER SET14:FULL RANGE+SUB
ENCODER SET15:ENTE RTAINER
ENCODER SET16:ROCK&ROLL
HI-PASS-CONTROL BASS-BOOST-CONTROL
LOW-PASS-CONTROL HI-ENAHCER-CONTROL
H
I-
P
A
S
S
-C
O
N
T
R
O
L
B
A
S
S
-B
O
O
S
T
-C
O
N
T
R
O
L
L
O
W-
P
A
S
S
-C
O
N
T
R
O
L
H
I-
E
N
A
H
C
E
R
-C
O
N
T
R
O
L
D221 DIODE
H
I-
P
A
S
S
-C
O
N
T
R
O
L
B
A
S
S
-B
O
O
S
T
-C
O
N
T
R
O
L
L
O
W-
P
A
S
S
-C
O
N
T
R
O
L
H
I-
E
N
A
H
C
E
R
-C
O
N
T
R
O
L
OUTPUT-ENCORDER
MS10MA/MS12MA-PRE(4/4)
C201B 10nF
13