+12V
10K
R6
BLACK
CON1
10uF
C9
R7
10K
33.2K
R1
R5
24.3K
R2
JUMPER
R3
3.01K
R25
10K
C2
1000uF 50V
D14
1N4002
D9
1N4002
D13
1N4002
1.5K
R152
1.5K
R151
2.26K
R150
TIP32
Q3
-15V
2.26K
R153
V-
D11
1N4002
D8
1N4148
D7
1N4148
TIP31
Q2
10uF
C35
4.7uF
C87
10uF
C34
4.7uF
C80
10uF
C117
10uF
C47
1uF
C46
10uF
C6
10uF
C5
R17
220K
R11
220K
-15V
-15V
.033uF
C156
BR1
2A
-
+
C152
1000uF 50V
C136
100uF 25V
.1uF
C98
R82
100K
R83
17.4K
5810
U26
O10
17
O9
18
O8
1
O7
2
O6
3
O5
8
O4
9
O3
10
O2
11
O1
12
DO
16
DI
14
CLK
4
ST
7
BLNK
13
GND
5
VBB
15
VDD
6
-15V
+15V
33nF
C128
33nF
C129
U24
LC7821
RES
18
RCM1
26
R4
27
LCM1
5
L4
4
L1
1
VSS
16
S
17
VDD
19
RCM3
20
R8
21
R7
22
RCM2
23
R6
24
R5
25
R3
28
R2
29
R1
30
LCM3
11
LCM2
8
DI
14
CE
13
VEE
12
L8
10
L7
9
L6
7
L5
6
L3
3
L2
2
CLK
15
R114
47.5K
C144
1nF
C108
1nF
R60
47.5K
33nF
C68
33nF
C67
+15V
-15V
+15V
-15V
33nF
C169
33nF
C153
U25:A
TL072C
1
8
4
+
3
-
2
1K
R135
U25:B
TL072C
7
+
5
-
6
1K
R139
3.01K
R138
3.01K
R137
33nF
C167
4.7nF
C168
3.01K
R136
.1uF
C155
24.3K
R147
10K
R148
402
R128
2.26K
R127
33nF
C164
47.5K
R149
33nF
C163
33nF
C162
CONN12
CON2
1
2
3
4
5
6
7
8
9
11
12
10
C124
33nF
C134
33nF
-15V
+15V
U20:A
TL072C
1
8
4
+
3
-
2
R99
17.4K
R100
17.4K
R93
17.4K
R103
17.4K
17.4K
R94
TL072C
U20:B
-
6
+
5
7
10K
R75
33.2K
R70
OPEN
C150
R146
OPEN
R140
OPEN
R132
OPEN
C154
OPEN
U27:A
-
2
+
3
4
8
1
U28:A
-
2
+
3
4
8
1
R119
OPEN
R120
OPEN
R121
OPEN
R129
OPEN
C148
OPEN
OPEN
R123
OPEN
C151
R122
OPEN
OPEN
R142
OPEN
R133
OPEN
R134
OPEN
C159
OPEN
R141
OPEN
C149
OPEN
R124
+15V
+15V
.22uF
C143
.22uF
C142
R98
OPEN
R107
OPEN
R101 OPEN
R78
OPEN
R86
OPEN
R104
OPEN
R88
221
R105
221
U16:A
OP249
1
8
4
+
3
-
2
U16:B
OP249
7
+
5
-
6
C125 OPEN
-15V
C116 OPEN
+15V
R53
1M
R74
1M
R58
10K
R44
10K
R47
2.26K
R63
2.26K
R51
221
R66
221
U11:A
OP249
1
8
4
+
3
-
2
U11:B
OP249
7
+
5
-
6
C79
33nF
-15V
C70
33nF
+15V
R30
1M
R36
1M
R33
24.3k
R26
24.3k
R28
3.01K
R34
3.01K
U5:A
OP249
1
8
4
+
3
-
2
U5:B
OP249
7
+
5
-
6
C40
33nF
-15V
C36
33nF
+15V
221
R29
221
R35
V+
C81
.1uF
C82
100uF
V-
.22uF
C86
.22uF
C85
100uF
C84
.1uF
C83
OPEN
C170
OPEN
C166
R143
OPEN
C157
OPEN
R144
OPEN
OPEN
R131
U27:B
-
6
+
5
7
OPEN
R130
R125
OPEN
C158
OPEN
OPEN
R145
OPEN
R126
U28:B
-
6
+
5
7
.22uF
C138
47.5K
R112
47.5K
R111
1K
R113
U21:B
TL072C
7
+
5
-
6
.22uF
C137
47.5K
R109
47.5K
R108
1K
R110
TL072C
U21:A
-
2
+
3
4
8
1
+15V
-15V
C38 150pF
47.5K
R12
C37
1nF
R81
10M
C113
.1uF
U15
SSM-2125A
NC
12
BPRIN
37
LREF
22
VREF
15
VREF
3
VREF
38
VRO
23
LOUT
24
CM2
21
CM1
20
DM4
19
DM3
18
DM2
17
DM1
16
NOUT
14
V-
13
NIN
11
RIN
10
LT
8
LIN
9
RT
7
CT4
5
CAB
6
V+
4
CT1
2
CT5
1
COUT
25
ROUT
26
V-
27
CC2
28
CC1
29
SOUT
30
ACS1
31
ACS2
32
ACC1
33
ACC2
34
ACR1
35
ACR2
36
ACL1
39
ACL2
40
BPLIN
41
CFWS
42
CFWC
43
CFWL
44
CFWR
45
CT6
46
CT3
47
CT2
48
C112
22nF
C107
22nF
C109
22nF
C103
22nF
680pF
C94
.22uF
C88
.22uF
C89
.33uF
C90
.33uF
C91
.33uF
C92
.33uF
C93
C95
680pF
47.5K
R61
47.5K
R67
R84
100K
R85
17.4K
C31
33nF
C32
4.7nF
680pF
C23
R24 39K
C25
560pF
LV1000NA
U8
MUTEIN
55
MUTEOUT
56
XTAL1
41
NC
45
MUTE
18
XTAL2
42
SRAS
24
CMP1
2
CR1
3
CSD1
11
CSR2
10
CDV
9
CSR1
8
CSL2
7
CSL1
6
CR3
5
CR2
4
CSL3
12
CR4
13
CR5
14
CR6
15
VCC
19
SCLK
21
SDATA
22
SCAS
23
VDD
25
VDOUT
20
A1
26
A2
27
A0
28
RAS
29
WE
30
A8
32
DOUT
31
VSS
33
CAS
34
DIN
35
A3
37
A6
36
A4
38
A5
39
A7
40
CSNR1
46
CWS
48
CSNR2
47
VRIN
49
NRIN
52
CND
53
FLTOUT
57
BFLTOUT
51
FLTIN
58
GND
59
RIN
60
LIN
61
CMTX
62
NS/DYOUT
64
NS/DYIN
63
N/DYOUT
54
NROUT
50
VREF1
16
VREF2
17
LONG
43
SER
44
DLYS
1
U9
LM33256K-15
A7
9
A5
10
A4
11
A3
12
A6
13
VSS
16
CAS
15
A8
1
DIN
2
WE
3
RAS
4
A0
5
A2
6
A1
7
VCC
8
DOUT
14
C57
220uF
C56
220uF
C58
220uF
C59
22nF
C7
5.6nF
C8
5.6nF
+12V
R42
17.4K
C74
.22uF
+5V
OPEN
C132
+15V -15V
U18
LC7535
LCT2
3
LCT1
2
RCT1
21
RCT2
20
CLK
12
DI
13
CE
14
VCC
15
RVM
16
R1DBO
17
R1DBI
18
R5DBO
19
R5DBI
22
VSS
11
VDD
10
S
9
VEE
8
LVM
7
L1DBO
6
L1DBI
5
L5DBO
4
L5DBI
1
+5V
33nF
C101
+15V -15V
U12
LC7535
RCT2
20
RCT1
21
LCT2
3
LCT1
2
CLK
12
DI
13
CE
14
VCC
15
RVM
16
R1DBO
17
R1DBI
18
R5DBO
19
R5DBI
22
VSS
11
VDD
10
S
9
VEE
8
LVM
7
L1DBO
6
L1DBI
5
L5DBO
4
L5DBI
1
LC7535
U6
LCT2
3
LCT1
2
RCT2
20
RCT1
21
L5DBI
1
L5DBO
4
L1DBI
5
L1DBO
6
LVM
7
VEE
8
S
9
VDD
10
VSS
11
R5DBI
22
R5DBO
19
R1DBI
18
R1DBO
17
RVM
16
VCC
15
CE
14
DI
13
CLK
12
-15V
+15V
C62
33nF
+5V
U13
LC7821
RES
18
RCM1
26
R4
27
LCM1
5
L4
4
L1
1
VSS
16
S
17
VDD
19
RCM3
20
R8
21
R7
22
RCM2
23
R6
24
R5
25
R3
28
R2
29
R1
30
LCM3
11
LCM2
8
DI
14
CE
13
VEE
12
L8
10
L7
9
L6
7
L5
6
L3
3
L2
2
CLK
15
1K
R106
C65
OPEN
U10:B
TL072C
7
+
5
-
6
R39
100
R50
10K
C69
OPEN
R41
OPEN
R46
JUMPER
R37
OPEN
17.4K
R49
TL072C
U10:A
-
2
+
3
4
8
1
+15V
-15V
33nF
C77
33nF
C66
47.5K
R48
R43
10K C75
.22uF
1K
R45
R38
1K
C76
OPEN
R40
JUMPER
C71
OPEN
OPEN
C104
OPEN
C110
1K
R56
R68
1K
.22uF
C106
10K
R65
R71
47.5K
C97
33nF
C111
33nF
-15V
+15V
U14:A
TL072C
1
8
4
+
3
-
2
R72
17.4K
OPEN
R55
JUMPER
R69
OPEN
R62
OPEN
C102
10K
R73
100
R57
TL072C
U14:B
-
6
+
5
7
OPEN
C96
.22uF
C105
17.4K
R64
OPEN
C121
OPEN
C126
1K
R77
R91
1K
.22uF
C123
10K
R90
R95
47.5K
C115
33nF
C127
33nF
-15V
+15V
U17:A
TL072C
1
8
4
+
3
-
2
R96
17.4K
OPEN
R76
JUMPER
R92
OPEN
R87
OPEN
C120
10K
R97
100
R79
TL072C
U17:B
-
6
+
5
7
OPEN
C114
.22uF
C122
17.4K
R89
R59
JUMPER
R80
JUMPER
17.4K
R117
17.4K
R118
33nF
C139
33nF
C133
.22uF
C141
.22uF
C140
17.4K
R116
17.4K
R115
C118
100uF
C119
.1uF
U22
7815
VO
3
G
2
VI
1
U29 7915
VO
3
G
1
VI
2
C160
100uF 25V
C161
100uF 25V
C146
100uF 25V
C147
100uF 25V
1000uF 50V
C165
+15V
V+
+12V
C135
10uF 25V
1N748B
D6
1N748B
D5
7805
U19
VI
1
G
2
VO
3
Q1
TIP31
C41
.12uF
C63
33nF
C64
220uF
+5V
3.01K
R23
OPEN
R22
10K
R16
17.4K
R21
100K
R20
10K
R19
47.5K
R18
33.2K
R52
10K
R54
.1uF
C73
.1uF
C72
.1uF
C78
C45
3.9nF
C44
33nF
C43
33nF
C42
.22uF
D2
1N4148
D1
1N4148
D3
1N4148
D4
1N4148
V-
D12
1N4002
47.5K
R27
C145
OPEN
+5V
8.0MHz
X1
30pF
C18
30pF
C19
R4
1M
10uF
C1
221
R9
C3
1nF
J1
1
2
D10
1N4002
MOLEX5M
CON3
1
2
3
4
5
J2
1
2
C30
.12uF
C29
22nF
C27
470uF
C26
4.7uF
C28
4.7uF
1nF
C16
C33
120pF
C4
16-50pF
R102
17.4K
C4
10uF
B&K AVP Series Analog Dolby Pro-Logic Board
Schematic 10661
5/10/94
TEST +5V
DGND
* TEST ONLY
B NR BYPASS
Lt and Rt
MUX ENABLED
A
Copyright 1994
SURROUND
OUTPUTS
10661A00.S01
MODE SWITCHING
N BPF
HPF
500Hz
LPF
2kHz
NOISE 18dB BPF
SUM
L + R + C
INV
L + R + C
SUB 24dB LPF
LF
RF
RS
LS
CNTR
SUB
REQ
REQ
REQ
ESM
1
1
LPF
LPF
REQ
DOLBY PRO
80Hz
80Hz
LEFT & RIGHT FRONT LEVEL
LEFT & RIGHT SURROUND LEVEL
SUB & CENTER LEVEL
BYPASS SWITCHING
HP
LP
REQ
80Hz
HPF
HPF
80Hz
REQ
HPF
80Hz
REQ
LPF
L IN
R IN
BNR OUT
L+ R
7kHz LPF IN
FROM DELAY OUT
DELAY IN
FROM S OUT
DELAY/LPF/BNR
S EQ
SURROUND EQ
CENTER 12dB HPF & EQ
R FRONT 12dB HPF & EQ
L FRONT 12dB HPF & EQ
500Hz - 2kHz
NOT USED
>
>
FROM AV
TRANSFORMER
SHORTED
B&K COMPONENTS, Ltd.
>
>
FROM AV LEFT REC OUT
FROM AV RIGHT REC OUT
<
<
TO LEFT Fx
TO RIGHT Fx
WIDE
WIDE
WIDE
WIDE
WIDE
MAIN BOARD
RETURN TO AV
<
<
<
<
<
3
4
5
1
2
* OPTIONAL
NOT USED
NOT USED
NOT USED
LF
RF
LS
RS
SUB
CENTER
LEFT DLBY
DM1
DM2
DM3
DM4
CM1
CM2
DLBY0
SCLK
SDI
SCLK
SDI
SCE2
DLBYM0
DLBYM1
DLBY0
DLBY1
SCLK
SDI
SCE2
RIGHT DLBY
CM2
CM1
DM4
DM3
DM2
DM1
DLBYM1
SDI
SCLK
DLBYM0
SCLK
SDI
SCE2
SCLK
SDI
SCE2
DLBY1
SDI
SCLK
SCLK
SDI
SCE2
CENTER DLBY
A
B
C
D
E
F
G
H
6
5
4
3
2
1
H
G
F
E
D
C
B
A
1
2
3
4
5
6
D
Rev
Number
Title
Size
Date
Filename
Drawn by
of
Sheet
