1
ROLLS CORPORATION
5968 S 350 W
Murray, Utah 84107
1
REQ131.SCH
A
17-Sep-2007
Title
Size:
Document Number:
Date:
Rev:
Sheet
of
REQ131 31 BAND EQUALIZER
Rb
POWER
CUT
+12V
-12V
-12V
-12V
+12V
-12V
LPF
ALL OP AMPS BA4560 OR EQUIV
+12V
+12V
BOOST
CUT
-12V
BOOST
-12V
TO 15 MORE SECTIONS
TO 14 MORE SECTIONS
U#
U4A
U4B
U5A
U5B
U6A
U6B
U7A
U7B
U8A
U8B
U9A
U9B
U10A
U10B
U11A
U11B
HZ
20
25
31.5
40
50
63
80
100
125
160
200
250
400
500
630
U#
HZ
800
1K
1.6K
2K
2.5K
3.1K
4K
6.3K
10K
8K
5K
12.5K
16K
20K
HPF
12A
12B
13A
13B
14A
14B
15A
15B
16A
16B
17A
17B
18A
18B
19A
CA
CB
RGA
CC
CD
RGB
.47
.27
.27
.22
.15
.12
.1
.082
.068
.047
.039
.033
.027
.022
.015
.012
.068
.068
.047
.039
.033
.027
.022
.015
.012
.01
.0082
.0068
.0047
.0039
.0027
.0039
1M
1M
1M
910K
1M
910K
1M
1M
1M
1M
910K
1M
910K
910K
1M
315
.039
.033
.027
.022
.015
.012
.01
.0082
.0068
.0056
.0039
.0033
.0027
.0022
.0018
.022
.015
.012
.01
.01
.0068
.0047
.0033
.0039
.0022
.0022
.0018
.0012
.001
680P
110K
100K
91K
91K
100K
110K
100K
91K
100K
91K
91K
100K
91K
100K
1.25K
1M
91K
+12V
+12V
+12V
-12V
-12V
J1
PC 1/4
J2
RCA PC
R3
10K 1%
j4
PC 1/4
R2
10K 1%
R1
10K 1%
D11
1N4001
D12
1N4001
D14
1N4001
1
2
3
j3
XLR F PC
C2
120PF
D1
D2
D3
D4
D5
D15
LDSG
4
H1D
HD14
4
H3D
HCN14
5
H3E
HCN14
2
H4B
2
H2B
C37
120PF
2
H3B
2
H1B
1
H1A
1
H3A
R7
10K
R8
4.7K
R9
4.7K
R15
10K
C5
120PF
C8
10UF
C9
1U
C101
10U
1
2
3
4
5
6
7
8
9
U21
BA6144
C52
120PF
8
H4H
8
H2H
13
H6M
HCN14
13
H5M
HD14
14
H6N
HCN14
14
H5N
HD14
1
2
3
SW1A
DPDT
R4
10K 1%
5
H1E
HD14
R81
4.7K
R83
100K
R84
51
R86
100K
R87
10k
3
H3C
HCN14
3
H1C
HD14
11
H5K
HD14
11
H6K
HCN14
12
H5L
HD14
12
H6L
HCN14
R89
10K
R14
100
R12
100
R90
100
D?
LDRR
R82
4.7K
C1
120PF
R88
10K
RFA
2K
RFB
470
C3
.27
R6
1K
C6
.0027
C7
.001
C91
10U
R5
3.3K
C4
.1
R?
33K
CD
RGB
CC
CA
RGA
CB
4
6
5
P1B
P100KC
1
3
2
P1A
P100KC
4
6
5
P3B
P100KC
1
3
2
P3A
P100KC
P2
P100KW
P14
100KW
P20
100KW
SW2
SW SPST
PL1
PLUG AC MALE
I
1
G
2
O
3
U22
7812
I
2
G
1
O
3
U23
7912
2
3
1
4
U1A
4560
2
3
1
4
U2A
4560
6
5
7
8
U2B
4560
6
5
7
8
U3B
4560
2
3
1
4
U20A
4560
6
5
7
8
U20B
4560
6
5
7
8
U1B
4560
6
5
7
8
U19B
4560
2
3
1
4
U3A
4560
2
3
1
4
U#A
4560
2
3
1
4
U#A
4560
C90
1U
T1
MCI 407-4024
R92
10K
R91
10K
R17
3.3K
R16
3.3K
R10
10K
R13
33K
R11
33K
R93
10K
4
5
6
SW1B
DPDT
C93
10U
R85
51
R94
100K
J6
RCA PC
R95
51
C92
503
D13
1N4001
1
2
3
J5
XLR JACK M
C89
1000UF 16V
C88
1000UF 16V
