GND
GND
H3B.E
H3B.C
H3B.D
3. ALL CAPACITORS IN MICROFARADS, EXCEPT AS NOTED.
5. ALL OP AMPS ARE TYPE 4558, EXCEPT AS NOTED.
2. ALL DIODES ARE TYPE 1N914, EXCEPT AS NOTED
1. ALL GROUNDS ARE A EXCEPT AS NOTED.
4. ALL RESISTORS IN OHMS.
6. LABEL "B" INDICATES A JUMPER WIRE.
J2
MAIN AMP INSERT
J11
LINE
QC2
NEUTRAL
QC3
D16
D14
D17
D15
D21
D20
D18
D19
L2
L1
C27
+
C30
220µF 50V
C31
+
C40
+
C39
+
1000µF 25V
C38
+
C35
C34
C37
+
C36
+
TR1
T
R40
R1
R41
R42
1
F1
V-
V+
Z1
2
3
4
5
6
12
7
8
9
10
11
C42
+
C43
+
C44
+
C45
+
L3
1
2
3 4
D22
D23
910 smt 1/4w
R45
-24V
910 smt 1/4w
R46
B3
D29D28D27
E19
E20
E21
E23
E22
Pin 1 Viper
Pin 2 Viper
Pin 3 Viper
Pin 5 Viper
Pin 4 Viper
R58
R59
Z6
-9V
+9V
C28
800 Hz250Hz
.0047
.0047
.0022
250pF
6K Hz 12K Hz
.0022
100Hz
A8.A
A8.B
A13.A
A2.A
A13.B
A7.B
2.2K
2.2K
2.2K
2.2K
.033
150K
360K
150K
.047
560pF
100K
2.2K
100K
B10K
B10K B10K B10K B10K
P1
P7
P9 P10
R71
R70
R73
C71
C70
R72
C73
C72 R75
R74
C75
C74
R77
R76
C77
C76
R79
R78
C79
C78
R90 10K
.1
P11
.1
6
-
5
+
7
2
-
3
+
1
6
-
5
+
7
2
-
3
+
1
2
-
3
+
1
6
-
5
+
7
R18
ACOUSTIC GUITAR CHANNEL ONE
+15VDC
HI BOOST
LEVEL
(10K)
A6.A
470K
A3.A
A6.B
B50K
.047
R34
R35
C111
C112
220K
100K
C4
R6
R9
R7
C8
R5
C101
39pF
.1
C3
C118
R4
.047
100K
.001
S100.B
S100.A
100K 100K
S101.B
22K
.0047
R20
R22
C19
C18
R17
R19
P105
22
22
cw
.01
2
!-
3
+
1
6
-
5
+
7
+
+
+
-
+
ACOUSTIC
.0022
.022
FREQ.
SWEEP
A12.A
B50K
B50K
100K
R33
R14
R108
C105
A12.B
R21
R15
R23
R25
10K
R24
10K
R26
C109
C6
C5
.01
C7
B50K
GAIN
B50K
LOW
47K
47K
10K
6.8K
.033
.0033
P103
P100
HI
cw
cw
P101
P102
2
-
3
+
1
6
-
5
+
7
cw
cw
C116
R28R27
R30
R29
470
470
.1
J100
INPUT 1
-15VDC
R16
C20
22
+
S101.A
(55mV)
MID SHIFT
(500HZ)
CHANNEL TWO
MID SHIFT
LO BOOST
VOLUME
A4.B
A4.A
B50K
B50K
B50K
R60
C205
C203
A3.B
100K
R201
R202
R203
C201
.1
R217
R218
C210
R216
.1
R215
100K
S201.A S201.B
100K
S200.A
LOW
P200
P203
C22
R39
R66
R36
.0047
R64
R65
C16
C14
R38
C202
P201
HI
22
cw
cw
22
22
.01
22
2
-
3
+
1
+
+
6
-
5
+
7
+
+
6
-
5
+
7
+
J200
INPUT 2
R68
C11
.1
S200.B
.0022
C204
R52
100K
R206
C21
.1
R63
R61
(70mV)
(500HZ)
(60HZ)
MICROPHONE CHANNEL
+15VDC
+15VDC
LEVEL
5.6K
5.6K
A11.A
A5.B
560pF
560pF
B50K
39PF
.047
R312
C309
C310
C311
C307
R306
R307
C305
C306
R300 R301
470
R302
C302
82PF
C300
82PF
C301
R304
R305
C303
C304
P303
R80
22
22
22
22
cw
22
2
-
3
+
1
6
-
5
+
7
+
+
+
+
+
+
-15VDC
.001
A5.A
B50K
B50K
100K
R317
R319
R316
C308
LOW
P301
P300
HI
cw
cw
2
-
3
+
1
C313
R318
R315
.1
R69
C17
0.1
+
(240mV)
47K
47K
4.7K
4.7K
4.7K
1K
4.7K
C9
15K
C10
39pF
22K
C23
C24
39pF
22K
22K 22K
4.7K
4.7K
4.7K
1K
220K
100K
47K
C26
.1
10K
4.7K
47K 47K
22K 33K
R81
C29
0.1
+
1.51K
1.51K
47K
47K
2.2K
2.2K
2.2K
4.7K
2.2K
1K
4.7K
10K
B50K
R86
10K
P8.A
TSTIO1
TSTIO2
TSTIO3
SDOUT2
SDOUT3
SDOUT1
DZFSET
AOUTR2
AOUTL2
AOUTR1
AOUTL1
TSTI1
SDIN2
SDDA2
SDIN1
SMODE
TSTI2
CASRF
RASCE
VRDAL
VRDAH
AINR-
AINR+
AINL-
AINL+
VRADL
VRADH
OPCL
PDAD
PDDA
SDAD
SDDA
BCLK
LRCK
CLK0
DVDD
DVSS
DVSS
DVDD
SCLK
WRDY
DRDY
DVSS
DVDD
DVSS
DVDD
DVSS
DVDD
DZF2
DZF1
AVSS
AVDD
VCOM
AVSS
AVDD
RST
DVB
DVB
XTI
XTO
WRQ
A16
A15
A14
A13
A12
A11
A10
IO0
IO1
IO2
IO3
IO4
IO5
IO6
IO7
DVB
DVB
AVB
AVB
100
PD
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
26 27 28
CS
29 30 31 32 33
S1
34 35 36
SO
37 38 39
WE
40 41 42 43 44 45 46 47
A9
48 49 50
A8
51
A7
52
A6
53
A5
54
A4
55
A3
56
A2
57
A1
58
A0
59
OE
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
76 77
NC
78 79 80 81
NC
82 83 84 85 86 87 88
NC
89 90 91 92 93 94 95 96 97 98 99
NC
1
A
K
7
7
1
2
2 3 4 5 6 7 8 9
U1
IDT71024
I/O7
I/O6
I/O1
I/O5
I/O4
I/O3
I/O2
I/O0
A16
A10
N/C
A13
A11
A14
A12
CS1
CS2
GND
A15
Vcc
A9
23
21
24
OE
25
A7
A6
A5
A4
A3
10
A2
19
18
17
15
13
12
A0
11
A1
27
A8
22
20
26
14
28
29
WE
30
16
31
32
2
3
4
5
6
7
8
9
1
U3
T16
T16
T15
T15
T14
T13
T13
T12
T12
T11
T11
T10
T10
T9
T9
T8
T8
T14
+5 V
D8
C84
+
C83
+
R157
10K smt 1/4w
R94
10K smt 1/4w
R89
10K smt 1/4w
R95
27pF27pF
Y1
T2
T0
T1
T3
T4
T5
T6
T7
A14.B
6
–
5
+
7
P3
cw
P2
cw
SELECT 1
ADJUST 1
1K smt 1/4w
R98
680 smt 1/4w
R99
+5 V
+5 V
+5 V
C61
+
0.1u
C62
+
22u
C60
+
0.1u
C64
+
22u
+5 V
+5 V
C65
+
0.1u
C66
+
22u
+5 V
+5 V
C63
+
0.1u
C67
+
22u
+5 V
4.7K smt 1/4w
R137
R138
22K smt 1/4w
R140
C68
+
22u
10K smt 1/4w
R141
C69
39pF
330
smt 1/4w
R142
330
smt 1/4w
R143
10K smt 1/4w
R144
H2.A
H2.B
H2.C
H2.D
C59
0.001u
C58
39pF
+5 V
+5 V
+5 V
+5 V
+5 V
+5 V
+5 V
C85
+
0.1u
C88
+
0.1u
C89
+
0.1u
C81
+
0.1u
C80
+
0.1u
C82
+
0.1u
C94
+
0.1u
A14.A
2
–
3
+
1
8
4
+5 V
4.7K smt 1/4w
R145
VCOM
AGNDPRE
D GND
D GND
P2.0
P1.3
P1.2
P0.5
P0.2
P0.1
P0.4
P0.3
P1.7
P1.4
P1.6
P0.0
P0.6
P1.0
P1.1
P1.5
P2.1
P0.7
VDD
VSS
19
16
15
12
17
14
11
U2
10
20
18
13
9
6
5
2
8
7
4
3
1
8
7
L
P
C
7
6
4
+5 V
B50K
P8.B
P5
cw
P6
cw
SELECT 2
ADJUST 2
RTN 1 L
RTN 1 R
CLIP 1
D7
R97
CLIP 2
+5 V
C117
0.001u
10K
A16.B
6
–
5
+
7
R159
10K smt 1/4w
R160
C55
39pF
330 smt 1/4w
R161
330 smt 1/4w
R162
A16.A
2
–
3
+
1
8
4
+5 V
10K
22K smt 1/4w
R163
C119
39pF
C120
+
22u
R165
10K
AGNDPRE
P106
cw
R10
EFF 2EFF 1
EFFECTS
47K
P202
cw
R11
EFF 2EFF 1
EFFECTS
10K
P302
cw
R12
EFF 2EFF 1
EFFECTS
22K
B50K
R13
10K
P15.A
RTN 2 R
B50K
R32
10K
P15.B
RTN 2 L
MAIN FX R
R87
10K
MAIN
R135
10K
MAIN
MAIN
J6
AUX SPKR
MAIN SPKR
J300
INPUT 3
A7.A
2
-
3
+
1
R37
R55
MAIN
-15VDC
+15VDC
POWER
4.7K
R62
C1
C2
22
22
D1
+
+
10K
C99
39pF
10K
A17.A
39pF
C403
R2
10K
2
!-
3
+
1
A2.B
B50K
39PF
C49
P16.B
6
-
5
+
7
MASTER
B50K
P16.A
MAIN FX R
MAIN FX L
R146
22K
A17.B
6
-
5
+
7
R152
10K
39pF
C98
MIC
J5
21
3
H4A.C
H4A.B
H4B.C
H4B.B
H4A.A
H4B.A
H8B.A
H8B.B
H8B.C
H8B.D
H8A.A
H8A.B
H8A.C
H8A.D
MAIN FX L
H1A.G
H1A.F
30-01019-1
LEFT OUT
RIGHT OUT
H1A.A
+15VDC IN
H1A.C
-15VDC IN
H1A.B
H1A.D
H1A.E
AGND
TURN OFF
+5 V
C123
C121
R31
R67
100
100
0.1µF
0.1µF
+5VDC IN
H3B.B
H3B.A
SPEAKER
SPEAKER
+15VDC
-15VDC
FS1
FS2
H1A.H
H1A.I
H1A.J
MONO OUT
FOOTSWITCH 1
FOOTSWITCH 2
C126
180pF
C127
82pF
C128
27pF
C129
C130
C131
82pF
27pF
82pF
C132
27pF
R88
10K
R136
10K
A11.B
6
-
5
+
7
82pF
R147
C133
150K
R153
10K
R154
10K
35V
35V
22µF 35V SMT
C53
+
22µF 35V SMT
C54
+
22µF 35V SMT
C25
+
22µF 35V SMT
C96
+
AGNDPRE
AGNDPRE
AGNDPRE
AGNDPRE
330
330
FS1
FS2
R8
0
AGNDPRE
INPUTGND
AGNDPRE
Q16
Q17
+15V
C12
C13
-15V
22µF
22µF
.047
.047
+
+
7815
7915
D2
L5
L6
9.1V SMT
Z8
9.1V SMT
Z9
9.1V SMT
Z10
9.1V SMT
1.5K
1.5K
N/U
.0047
EFF 2
EFF 1
C56
0.1µF
R44
R56
R57
R93
+5 V
+5 V
+5 V
1M
1M
1M
1M
C51
180pF
C87
180pF
H4A.D
H4B.D
R127
R128
10
10
C15
0.1µF
R96
10K
R119
C86
0.1u
100K
C57
0.1u
H2.H
H2.G
H2.F
H2.E
+5 V
120µF
C90
+
180pF
10
Fsw 107kHz
3.9K
L7
L8
C122
C113
C114
C115
.027µF
.027µF
LINE INPUT FILTER
0.47µF
.027µF
300µH
300µH
C137
220pF
R139
R155
47K
10K
QC4
QC5
CHASSIS
QC6
R156
47K 5W
B7
B5
B4
B1
B5, B7 INSTALLED:
EXT. SPEAKER IN SERIES (16
)
B1, B4 INSTALLED:
EXT. SPEAKER IN PARALLEL (4 )
E24
E25
C125
0.1u
C138
0.22u
/PD
/PD
H2A.A
GND
H2A.B
GND
GND
QC7
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