Alto MS8MA Service Manual page 17

1 2
C45,C46,C47,C48,C49,C50
n F < ´ = r
LAYOUT
C45
D
INPUT-ENCORDER
470nF
R21
10K
HI PASS GAIN
SET:1.1K
R20
1.50K
TR4
J176
HI-PASS-CONTROL BASS-BOOST-CONTROL
HIGH PASS CONTROL
L=ON,H=OFF
C52 C53 CLICK NOISE
C
C25
0.1u cer
U7
4051
A15 ENCODER SET16
B
A15 ENCODER SET15
A2 ENCODER SET14
A13 ENCODER SET13
A3 ENCODER SET12
A11 ENCODER SET11
A10 ENCODER SET10
A6 ENCODER SET9
A6 ENCODER SET8
A5 ENCODER SET7
A6 ENCODER SET6
A5 ENCODER SET5
A4 ENCODER SET4
A3 ENCODER SET3
A2 ENCODER SET2
A1 ENCODER SET1
ENCODER SET16:ROCK&ROLL
ENCODER SET15:ENTE RTAINER U8
ENCODER SET14:FULL RANGE+SUB 4051
ENCODER SET13:LOUDNESS
ENCODER SET12:ANTIFEEDBACK
ENCODER SET11:SIDEFILL
ENCODER SET10:BOOM
ENCODER SET9:STAGE C28
ENCODER SET8:TWIN
ENCODER SET7:DRUMFILL+SW
A
ENCODER SET6:PIANO 0.1u cer
ENCODER SET5:GUITAR 2
ENCODER SET4:GUITAR 1
ENCODER SET3:VOCAL 2
ENCODER SET2:VOCAL 1
ENCODER SET1:FULL RANGE
1 2
3
C46 39nF
C47 10nF
R32
R30
22.0K 0R
C22
0.1u cer
2
R26
1
3
1.00K
LOW PASS GAIN
4580
U6A
BASS BOOST GAIN
R29 C21
SET:10.5k 50K
0.1u cer
R24
100.0K
R31
0R
LOW-PASS-CONTROL
R25
1.00K +8V
LOW PASS CONTROL
TR5
L=ON,H=OFF
J176
BASS BOOST CONTROL
L=ON,H=OFF
-8V +8V -8V
R40 R33 R34
100K 0R 0R
+8V
C26 C27
R46
0.1u cer 0.1u cer 10K
C56 -8V
1.0U
Q1
-8V
2SC2412
B
B
R35
0R
-8V
R47 10K
C60
1.0U
C57 C58 C59
1.0U 1.0U 1.0U
R38
0R
-8V
C29
0.1u cer
0.1u cer
C30
R41 R36 R37
100K 0R 0R
-8V +8V -8V
3
4 5
-8V
C49 C50
27nF 27nF
R22
10K
R27
SET:1.69k 1.00K
C48
10NF R39
220.0K
TR2 TR3
J176 J176
HI-ENAHCER-CONTROL
HI ENAHANCER CONTROL
L=ON,H=OFF
+8V
SW2
R52 1K
1
2 5
R53 1K
3 6
R54 1K
4
R55 1K
288S0366
C61
1.0U
4 5
6 7
C51 10P
R23
R28 1.00K
10K
HI ENAHANCER GAIN
SET:0R
C10
6 47u/25V
R6
7
5
2.2K
4580
U6B
OUTPUT-ENCORDER
+8V
D8
A DIODE K A2
R42
1M
A K
D9 DIODE
D10 DIODE A3
R43 1M
D11 DIODE
D12 DIODE A4
R44
1M
D13 DIODE
D14 DIODE
R45 1M
D15 DIODE A5
D16 DIODE
RC0805
C62 10U
D17 DIODE A6
D18 DIODE
C63 10U
D19 DIODE
D20 DIODE
C64 10U
D21 DIODE
D22 DIODE A10
C65 10U
D23 DIODE
D24 DIODE A11
D25 DIODE
D26 DIODE A13
D27 DIODE
D28 DIODE
D29 DIODE A15
Titel MS8MA-PRE
Size Model NO:
A3
Date 4-Feb-2007
File
ENCORDER.SCH
6 7
8
MS8MA-PRE(2/2)
D
CN2
1
2
C
B
A
Revision
MS8MA VER070201
Sheet of 15
2 2
Drawn By XiaoPingHuang
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