DMR12
Schematics
Klark Teknik Building
Walter Nash Road
Kidderminster
Worcestershire
DY11 7HJ
Tel: +44 (0) 1562 741515
Fax: +44 (0) 1562 745371
Email: info@uk.telex.com
Website: www.ddaconsoles.com
DMR12 Schematics
Telex Communications (UK) Limited
In line with the company’s policy of continual improvement, specifications and function maybe subject
to change without notice. This Operator Manual was correct at the time of writing. E&OE.
Date: November 20, 1991 Sheet 1 of 1
Size Document Number REV
D CD1085 5
Title
DMR12 INPUT MODULE
DDA LTD
V-
V+
EQ IN
R48
1K5
C36
33
R50
47K
C38
100/16
R52
10K
R57
10K
R58
10K
S6
SUN2
C39
100/16
D1
LED R
R164
75
R43
10K
C33
15N
R44
10K
R47
1K5
C37
470N
C35
470NR49
47K
R51
75
10
9
8
IC3C
TL074
12
13
14
IC3D
TL074
POT5
10KA
1
2
3
POT17A
100K-
4
5
6
POT17B
100K-
C30
33
R34
1K5
R35
1K5
C29
3N3R36
47K
R37
47K
R40
75
R38
10K
R39
10K
C31
2N2
3
2
1
4
1
1
IC3A
TL074
5
6
7
IC3B
TL074
POT2
10KA
4
5
6
POT16B
100K-
1
2
3
POT16A
100K-
HIGH PASS
R31
100K
C28
33N
R32
47K
R18575C82
100/16
R174
10K
10
9
8
IC2C
TL074
S5
SUJ2
V+
V-
PHASE REVERSE
R11
10K
C12
33
R10
75
R5375C26
100/16
R30
10K
R33
10K
C27
33N 5
6
7
IC2B
TL074
S2
SUJ2
V+
V- R7
15K
C13
100/16
R141
10K
R12
10K
D29
D28
+48V
V+
V-
RP1
501
R173
470
R5
24K
TR2
2SB737
R179
7K5
R134
75
C4
220/25
R182
4K7
C5
680
C7
680
C3
68/16
IN+
-20dB
+48V
MIC
C81
2.2/63
R183
470
R170
1K5
R171
330
R3
24K
C1
33/63
S3
SUJ2
S31
SUJ2R2
6K8 1%
R1
6K8 1%
IN-
C2
33/63
R4
24K
R172
1K5
1
2
3
POT1
10K-
R180
7K5
R181
4K7
TR1
2SB737 C11
68/16
C6
680
R6
15K
V+
V-
MIC/LINE
V+
V-
5
6
7
IC1B
TL072
C8
33
C9
33
R875C10
100/16
R9
10K
C25
100/16
R28
10K
R54
75
3
2
1
8
4
IC1A
TL072
S4
SUJ2
D30
D31
C24
100/16
V+
R90
75
C59
33
R87
4K7
R88
4K7
C60
100/16
R41
3K3
R42
3K3
C32
4N7
3
2
1
4
1
1
IC5A
TL074
C71
100/16
PAN IN
FROM DIRECT LEDTO INPUT LED
R103
10K
R45
3K3
C34
33N
R46
3K3
POT3
10KA
POT4
10KA
S7
SUJ2
D15
LED G
S19
SUJ4
D2
LED G
GRP 1
GRP 2
FROM INPUT LED
R110
10K
S13
SUJ2
D8
LED R
GRP 3
GRP 4
GRP 5
GRP 6
R112
10K
R111
10K
S14
SUJ2
S15
SUJ2
D9
LED R
D10
LED R
D11
LED R
R105
10K
R104
10K
S8
SUJ2
S9
SUJ2
S10
SUJ2
D3
LED R
D4
LED R
D5
LED R
V-
V+
V-
R86
330
R91
330
R89
10K
R94
10K
C62
100/16
R95
75
R92
4K7C61
33
R93
4K7
C73
100/16
10
9
8
IC5C
TL074
R220
330
R219
7K5
R191/B
10
VCC VCC
PEAK
V-
TR5
BC212
R147
100K
1
2
3
POT18A
4K7A
TR6
BC212
D19
LED R
D35
16VZENER
R101
2K2
C77
220N SUBMIN
VCC VCC
VCC
R27
10K
R150
100K
C74
22/25
R142
12K
R143
1K8
TR4
BC182
R144
100K
R145
10K
R146
100K
C75
470N SUBMIN
5
6
7
IC9B
TL072
RP3
502
R29
10K
R169
510
R168
510
C80
33
R167
10K
R208
10K
R209
22K
POT14
10KA
V+ LINE1/LINE2
C17
33
C16
33
R16
7K5
R5675C18
100/16
R19
10K
R184
10K
D32
LED G
IN -
IN +
LINE1
R18
10K
R17
10K
C15
100/16
C14
100/16
R15
15K
R14
15K
R13
7K5
3
2
1
4
1
1
IC2A
TL074
CON2/9
CON2/10
IN -
IN +
LINE2
C19
100/16
C20
100/16
R22
15K
R21
15K
R24
10K
R25
10K
R20
7K5
5
6
7
IC2B
TL074
CON2/7
CON2/8
V-
C22
33
C21
33
R23
7K5
R5575C23
100/16
R26
10K
S1
SUJ4
METER+
METER-
VCC
PEAK LED
PEAK LED
3
2
1
8
4
IC9A
TL072
V-
R210
3K6
R212
100K
R214
100K
R215
2K2
R213
100K
C108
220N SUBMIN
R211
2K2
D2
R151
75
R149
100K
C76
22/25
3
2
6
7
4
IC10
TL071
D34
1
2
4
3
S33
PROGLINK
C104
2N2
SIGNAL
PRESENT
R152
100K 4
5
6
POT18B
4K7A
TR9
BC212
D20
LED G
C105
100/16
R102
2K2
V+
V-
R154
330
R97
4K7
R100
75
C64
100/16
R99
10K
C63
33
R96
330
R98
4K7
C72
100/16
12
13
14
IC5D
TL074
R221
330
R107
10K
R106
10K
S11
SUJ2
S12
SUJ2
D6
LED R
D7
LED R
GRP 7
GRP 8
GRP 9
GRP 10
R114
10K
R113
10K
S16
SUJ2
S17
SUJ2
S18
SUJ2
D12
LED R
D13
LED R
GRP 11
GRP 12
L MIX
R MIX
TO C/SRC2
R178
10K
R177
10K
R116
10K
R109
10K
R115
10K
S20
SUJ4
D14
LED G
TO GROUP2 LED
R108
10K
Sub-Board
INPUT
FROM PAN LED
D27
LED G
S32
SUJ4
R224
10K
R225
10K
C107
33
R226
10K
3
2
6
7
4
IC13
TL071
C106
100/16
V+
V-
3
2
1
8
4
IC6A
NE5532
C40
33
R7875C55
100/16
PRE/OFF/POSTPRE/OFF/POST
S24
C+K
R223
10K
R60
3K6
RP2
501
R187
47
R190
220K
C41
220N
R59
220K
R188
4K7
1
2
3
POT6
10KALPS
V+
14
AI
4
AO
6
AC
2
BI
11
BO
9
BC
13
V-
7
0V
1
0V
3
0V
5
0V
12
0V
10
0V
8
IC7
SSM2402/1
R186
100K
C50
33
R133
7K5
R71
75
C68
33
5
6
7
IC5B
TL074
V-
VCC
C51
100/16
R228
10K
OUT+
OUT-
IN+
IN-
INSERT
SENDRETURN
C54
100/16
R73
10K
R74
75 R70
10K
R69
10K
C49
100/16
C48
100/16
R66
7K5
CON2/6
CON2/5
CON2/4
CON2/3
R68
7K5
R67
7K5
3
2
1
8
4
IC4A
NE5532
R79
10K
C53
100/16
R76
10K
C52
33
R72
75
R175
10K
R75
10K
R77
10K
C83
33
+18V
EARTH REF.
+48V
+48V
R155
10
R216
10
R192
10R193
10R194
10
R191/A
10
S26
SW SPST
MUTE OUT
MUTE
VDDVDD
V+ IC1
V+ IC2
V+ IC3
V+ IC4
V+ IC9
R138
100K
C70
47N
VDD
VDD
VDD
R135
100K
R189
2K2
D
5
Q
1
CLK
3
Q
2
R
4
S
6
IC8A
4013
D18
1
2
4
3
S29
PROGLINK
R227
100K
C69
100/16
R136
330K
PRE/OFF/POST
PRE/OFF/POST
VDD
S21
C+K
S22
C+K
AUX 1
AUX 2
AUX 3
R119
10K
R117
10K
R118
10K
POT7
10KB
POT8
10KB
POT9
10KB
V+
V-
5
6
7
IC6B
NE5532
R125
220K
C66
220N
R122
220K
R123
4K7
R124
10K
R126
75
C65
33
POT13
10KB
AUX 7
AUX 8
C67
100/16
R130
2K2
1
2
3
POT15A
4K7A
4
5
6
POT15B
4K7A
R128
39K
R129
39K
OUT+
OUT-
DIRECT
R127
2K2
C56
33
R8075C58
100/16
R81
10K
R82
75
R83
10K
R176
10K
CON2/2
CON2/1
DIRECT
VCC
TO GROUP1 LED
5
6
7
IC4B
NE5532
R132
10K
C57
100/16
R84
10K
R85
10K
C84
33
D17
LED G
S25
SUJ4
AUX 4
AUX 5
AUX 6
R121
10K
R131
10K
R120
10K
POT10
10KB
POT11
10KB
POT12
10KB
S23
C+K
D24
LED R
PRE/OFF/POST
V-
CUT
FROM SOLO LED
TR10
BC212
R159
100K
R160
100K
TR11
BC182
D21
VCC
TO MIX LED
R158
100K
R157
100K
TR3
BC182
R162
10K
TR12
BC182
R161
150
D22
D23
MUTE IN
TO SOLO LED
V+ IC5
V- IC3
V- IC4
V- IC5
V+ IC6
V- IC6
R137
10K
C89
22/25
C101
22/25
C94
22/25
C102
22/25
TR13
BC182
R165
75
VDD
VCC
R195
10R206
10
R207
10 R196
10 R197
10 R198
10 R199
10
C100
2.2/63
C97
22/25
C85
22/25
C86
22/25
C87
22/25
C88
22/25
C98
22/25
C90
22/25
C91
22/25
C92
22/25
C93
22/25
-18V
0V
R201
10
R156
10
VI
G
N
D
VO
REG1
LM78L05
C78
220/25
C79
220/25
C95
2.2/63
R203
R OPT
R204
R OPT
R202
10
C96
2.2/63
VSSVSS
R200
10 R217
10
C/SRC1
V- IC1
V- IC2
V- IC9
V- V- V-
C/SRC2
FROM CUT LED
SOLO
TO C/SRC1
R140
10K
R139
47K
S27
SUN2
1
2
4
3
S28
PROGLINK
C103
2N2
SOLO ENABLE
SOLO AUDIO
Date: November 20, 1991 Sheet 1 of 1
Size Document Number REV
D CD1086 5
Title
DMR12 OUTPUT MODULE
DDA LTD
V-
V+
EQ IN
C37
470N
R48
1K5
C36
33
C35
470N R50
47K
C38
100/16
R52
10K
R57
10K
12
13
14
IC3D
TL074
C39
100/16
R58
10K
R164
75
S6
2 POLE SUN
D1
RED
R43
10K
C31
2N2
C33
15N
R44
10K
R47
1K5
R49
47K
R51
75
10
9
8
IC3C
TL074
POT5
10KA
1
2
3
POT17A
100K-
4
5
6
POT17B
100K-
R34
1K5
R35
1K5
C29
3N3R36
47K
R37
47K
R40
75
R38
10K
R39
10K
3
2
1
4
1
1
IC3A
TL074
5
6
7
IC3B
TL074
POT2
10KA
1
2
3
POT16A
100K-
4
5
6
POT16B
100K-
C30
33
HIGH PASS
R31
100K
C28
33N
R32
47K
R18575C82
100/16
R174
10K
10
9
8
IC2C
TL074
S5
2 POLE SUJ
V+
V-
PHASE REVERSE
R12
10K
R11
10K
C12
33
R10
75
R5375C26
100/16
R30
10K
R33
10K
C27
33N 5
6
7
IC2B
TL074
S2
2 POLE
SUJ
C13
100/16
OUT+
OUT-
SEND
INSERT
VCC
C103
33
R218
75
C104
100/16
R222
75
R134
10K
CON2/14
CON2/13
5 6
SIL4C
10KSIL
1 2
SIL4A
10KSIL
7
8
SIL4D
10KSIL
R173
1K2
POT1
10KA
C10
100/16
R181
10K
C11
33
C5
33
5
6
7
IC11B
TL072
3 4
SIL2B
10KSIL
3
4
SIL4B
10KSIL
V+
V-
BUS IN-
GROUPS 1-12
BUS IN1
BUS IN2
BUS IN3
BUS IN4
BUS IN5
BUS IN6
BUS IN7
BUS IN8
BUS IN9
BUS IN10
BUS IN11
BUS IN12
INSERT
RP1
50K
3
2
1
8
4
IC1A
NE5532
R170
75
R171
100K
R7
75
R179
10K
R172
3K6
1
2
3
4
5
6
7
8
9
10
11
12
C9
100
R180
75
IN+
IN-
RETURN
C3
33
R3
10K
R4
10K
C2
100/16
C1
100/16
3
2
1
8
4
IC11A
TL072
CON2/16
CON2/15
C4
33
5
6
SIL3C
10KSIL
7
8
SIL3D
10KSIL
3
4
SIL3B
10KSIL
1 2
SIL3A
10KSIL
V+
V-
V+
V-
RP4
502
C7
100/16
C8
100/16
R9
75
R8
75
C6
33
3
2
1
8
4
IC12A
NE5532
5
6
7
IC12B
NE5532
7 8
SIL1D
4K7SIL
1
2
SIL1A
4K7SIL
3
4
SIL1B
4K7SIL
7 8
SIL2D
10KSIL
5 6
SIL2C
10KSIL
1 2
SIL2A
10KSIL
5 6
SIL1C
4K7SIL
C25
100/16
R28
10K
R54
75
BUS 1-
BUS 1+
BUS 13-
BUS 13+
V-
BUS SELECT
BUS OUT
5
6
7
IC1B
NE5532
CON2/19
CON2/20
CON2/17
CON2/18
D28
LED R
S4
6 POLE SUJ
C24
100/16
V+
R90
75
C59
33
R87
4K7
R88
4K7
C60
100/16
R41
3K3
R42
3K3
C32
4N7
3
2
1
4
1
1
IC5A
TL074
C71
100/16
PAN IN
FROM DIRECT LEDTO INPUT LED
R103
10K
R45
3K3
C34
33N
R46
3K3
POT3
10KA
POT4
10KA
D15
LED G
S19
SUJ4
D2
LED R
S7
2 POLE SUJ
GRP 1
GRP 2
FROM INPUT LED
R110
10K
S13
2 POLE SUJ
D8
RED
GRP 3
GRP 4
GRP 5
GRP 6
R112
10K
R111
10K
D10
LED R
D11
LED R
S15
2 POLE SUJ
S14
2 POLE SUJ
D9
RED
R105
10K
R104
10K
R89
10K
R94
10K
D3
LED R
D4
LED R
D5
LED R
S8
2 POLE SUJ
S9
2 POLE SUJ
S10
2 POLE SUJ
V-
V+
V-
R86
330
R91
330
C62
100/16
R95
75
R92
4K7C61
33
R93
4K7
C73
100/16
10
9
8
IC5C
TL074
R220
330
R219
7K5
R191/B
10
R101
2K2
VCC VCC
PEAK
V-
R146
100K
TR5
BC212
R147
100K
1
2
3
POT18A
4K7A
TR6
BC212
D35
16V
C111
220N
D19
LED R
VCC VCC
VCC
R27
10K
R150
100K
C74
22/25
R142
12K
R143
1K8
TR4
BC182
R144
100K
R145
10K
C75
470N SUBMIN
5
6
7
IC9B
TL072
RP3
502
R29
10K
R169
510
R168
510
C80
33
R167
10K
R208
10K
R209
22K
POT14
10KA
V+ LINE1/LINE2
C17
33
C16
33
R16
7K5
R5675C18
100/16
R19
10K
R184
10K
D32
LED G
IN -
IN +
LINE1
R18
10K
R17
10K
C15
100/16
C14
100/16
R15
15K
R14
15K
R13
7K5
3
2
1
4
1
1
IC2A
TL074
CON2/9
CON2/10
IN -
IN +
LINE2
C19
100/16
C20
100/16
R22
15K
R21
15K
R24
10K
R25
10K
R20
7K5
5
6
7
IC2B
TL074
CON2/7
CON2/8
V-
C22
33
C21
33
R23
7K5
R5575C23
100/16
R26
10K
S1
4 POLE SUJ
METER+
METER-
VCC
PEAK LED
PEAK LED
3
2
1
8
4
IC9A
TL072
V-
R210
3K6
R211
2K2R212
100K
R214
100K
R215
2K2
R213
100K
C108
220N SUBMIN
D2
R151
75
R149
100K
C76
22/25
3
2
6
7
4
IC10
TL071
D34
1
2
4
3
S33
PROGLINK
C110
2N2
SIGNAL
PRESENT
R152
100K 4
5
6
POT18B
4K7A
TR9
BC212
D20LED G
C105
100/16
V+
V-
R154
330
R97
4K7
R100
75
C64
100/16
C63
33
R96
330
R98
4K7
C72
100/16
12
13
14
IC5D
TL074
R221
330
R102
2K2
R107
10K
R106
10K
R99
10K
D6
LED R
D7
LED R
S11
2 POLE SUJ
S12
2 POLE SUJ
GRP 7
GRP 8
GRP 9
GRP 10
R114
10K
R113
10K
D12
LED R
D13
LED R
S18
2 POLE SUJ
S17
2 POLE SUJ
S16
2 POLE SUJ
GRP 11
GRP 12
L MIX
R MIX
TO C/SRC2
R178
10K
R177
10K
R116
10K
R109
10K
R115
10K
D14
LED G
S20
4 POLE SUJ
TO GROUP2 LED
R108
10K
Sub-Board
INPUT
FROM PAN LED
S32
SUJ4
D27
LED G
S24
C+K
R224
10K
R225
10K
C107
33
R226
10K
3
2
6
7
4
IC13
TL071
C106
100/16
V+
V-
PRE/OFF/POST
3
2
1
8
4
IC6A
NE5532
C40
33
R7875C55
100/16
R223
10K
R60
3K6
RP2
501
R187
47
R190
220K
C41
220N
R59
220K
R188
4K7
1
2
3
POT6
10KALPS
R186
100K
C50
33
R133
7K5
R71
75
C68
33
5
6
7
IC5B
TL074
VCC
V-
V+
14
AI
4
AO
6
AC
2
BI
11
BO
9
BC
13
V-
7
0V
1
0V
3
0V
5
0V
12
0V
10
0V
8
IC7
SSM2402/1
C51
100/16
R228
10K
OUT+
OUT-
IN+
IN-
INSERT
SENDRETURN
C54
100/16
R73
10K
R74
75 R70
10K
R69
10K
C49
100/16
C48
100/16
R66
7K5
CON2/6
CON2/5
CON2/4
CON2/3
R68
7K5
R67
7K5
3
2
1
8
4
IC4A
NE5532
R79
10K
C53
100/16
R76
10K
C52
33
R72
75
R175
10K
R75
10K
R77
10K
C83
33
+18V
EARTH REF.
+48V
+48V
R155
10
R216
10
R194
10
R193
10
R192
10
R191/A
10
S26
SW SPST
MUTE OUT
MUTE
VDDVDD
V+ IC1
V+ IC2
V+ IC3
V+ IC4
V+ IC9
R138
100K
C70
47N
VDD
VDD
R135
100K
R189
2K2
D
5
Q
1
CLK
3
Q
2
R
4
S
6
IC8A
4013
D18
1
2
4
3
S29
PROGLINK
C69
100/16
R227
100K
R136
330K
PRE/OFF/POST
PRE/OFF/POST
VDD VDD
R158
100K
AUX 1
AUX 2
AUX 3
R119
10K
R117
10K
R118
10K
POT7
10KB
POT8
10KB
POT9
10KB
S21
C+K
S22
C+K
V+
V-
5
6
7
IC6B
NE5532
R125
220K
C66
220N
R122
220K
R123
4K7
R124
10K
R126
75
C65
33
POT13
10KB
AUX 7
AUX 8
C67
100/16
R130
2K2
1
2
3
POT15A
4K7A
4
5
6
POT15B
4K7A
R128
39K
R129
39K
OUT+
OUT-
DIRECT
5
6
7
IC4B
NE5532
R127
2K2
C56
33
R8075C58
100/16
R81
10K
R82
75
R83
10K
R176
10K
CON2/1
CON2/2
DIRECT
VCC
TO GROUP1 LED
R132
10K
C57
100/16
R84
10K
R85
10K
C84
33
D17
LED G
S25
4 POLE SUJ
AUX 4
AUX 5
AUX 6
R121
10K
R120
10K
POT10
10KB
POT11
10KB
POT12
10KB
S23
C+K
D24
LED R
R131
10K
PRE/OFF/POST
V-
CUT
FROM SOLO LED
TR10
BC212
R159
100K
R160
100K
TR11
BC182
D21
VCC
TO MIX LEDTO SOLO LED
R157
100K
TR3
BC182
R162
10K
TR12
BC182
R161
150
D22
D23
MUTE INV+ IC5
V- IC3
V- IC4
V- IC5
V+ IC6
V- IC6
R137
10K
C89
22/25
C101
22/25
C94
22/25
C102
22/25
TR13
BC182
R165
75
VDD
VCC
R195
10R206
10
R207
10 R196
10 R197
10 R198
10 R199
10
C100
2.2/63
C97
22/25
C85
22/25
C86
22/25
C87
22/25
C88
22/25
C98
22/25
C90
22/25
C91
22/25
C92
22/25
C93
22/25
-18V
0V
R201
10
R156
10
VI
G
N
D
VO
REG1
LM78L05
C78
220/25
C79
220/25
C95
2.2/63
R203
R OPT
R204
R OPT
R202
10
C96
2.2/63
VSSVSS
R200
10 R217
10
V-
C/SRC1
V- IC1
V- IC2
V- IC9
V- V-
C/SRC2
FROM CUT LED
SOLO
TO C/SRC1
1
2
4
3
S28
PROGLINK
R139
47K
R140
10K
C109
2N2
S27
2 POLE SUN
SOLO ENABLE
SOLO AUDIO
Date: August 4, 1994 Sheet 1 of 1
Size Document Number REV
D CD1087-4 C
Title
DMR MONITOR MODULE
TW3 2EB ENGLAND
HOUNSLOW MIDDX
WHITTON RD
UNIT 1, INWOOD BUSINESS PK
DDA LTD
CON C2
CON C1
MAIN L-
MAIN L+
R64
10K
3
2
1
8
4
IC5A
NE5532
R61
10K
C37
33P
C36
33P
R65
10K
R63
75R
R66
75R
C38
100U
16V
R60
10K
TO LED13
R62
10K
3
2
1
8
4
IC16A
TL072
C107
10P
R219
75R
C35
100U
16V
R59
220K
R207
22K
R208
100K
CONTROL ROOM
LEVEL
ALT SPK
VCC
VCC
CON F6
CON F5
CON F2
PEAKLED
FROM LED11
R189
2K2
3
2
1
8
4
IC13A
TL072
5
6
7
IC13B
TL072
R187
100K
V-
LED12
RED
S6
4PSUN
1
2
3
VR3A
10KX2
+LOG
"CUT L"
METER L
CON F7
CON F8
FROM LED13 TO LED15
TO LED17
C89
33P
R190
3K6
3
2
1
8
4
IC14A
TL072
R188
100K
LED16
RED
LED14
RED
PR1
5KH
S10
2PSUN
S8
2PSUN
R186
33K
"MONO"
VCC
FROM LED15
R51
47K
R185
10K
R53
4K7
C32
100U
16V
V+
14
AI
4
AO
6
AC
2
BI
11
BO
9
BC
13
V-
7
0V
1
0V
3
0V
5
0V
12
0V
10
0V
8
IC9
SSM2402
SIP SWITCHING
VCC
C31
33P
R114
10K
R48
7K5
R47
75R
V+
14
AI
4
AO
6
AC
2
BI
11
BO
9
BC
13
V-
7
0V
1
0V
3
0V
5
0V
12
0V
10
0V
8
IC11
SSM2402
3
2
1
8
4
IC7A
NE5532
V-
V+
3
2
1
8
4
IC12A
TL072
C67
33P
R110
10K
R113
10K
R111
10K
R112
75R
C68
100U
16V
AFLL
BUSCOM
5
6
7
IC12B
TL072
CON B2
CON B23
C66
33P
R108
10K
R109
100K
R107
75R
V+
V+
V-V-V-
R117
100K
R118
100K
TR1
BC182
TR2
BC212
R119
3K3
SOLO DC
CONB4
C69
2U2
63V
R116
100K
SOLO
V+
V+
V-
R120
100K
R121
100K
R122
100K
R123
10K
TR3
BC212
TR4
BC212
LED18
YEL
VCC
VDD
C33
33P
R45
OPT
R43
10K
R44
10K
R115
10K
R50
7K5
R49
75R
V+
14
AI
4
AO
6
AC
2
BI
11
BO
9
BC
13
V-
7
0V
1
0V
3
0V
5
0V
12
0V
10
0V
8
IC10
SSM2402
5
6
7
IC7B
NE5532
VDD
FROM LED14
R52
47K
R54
4K7
C34
100U
16V
"CUT R"
METER R
CON F3
CON F4
TO LED 16
R191
10K
C90
33P
R196
3K6
5
6
7
IC14B
TL072
V-
R193
100K
LED15
RED
PR2
5KH
S9
2PSUN
R192
33K
CON F1
PEAKLED
R194
100K
R195
2K2
4
5
6
VR3B
10KX2
+LOG
R68
10K
R70
10K
5
6
7
IC16B
TL072
C108
10P
R220
75R
C40
100U
16V
R67
220K
R209
22K
R210
100K
MAIN R-
MAIN R+
R72
10K
5
6
7
IC5B
NE5532
CON C4
CON C3
R69
10K
C42
33P
C41
33P
R73
10K
R71
75R
R74
75R
C43
100U
16V
CON C6
CON C5
ALT1 L+
ALT1 L-
R80
10K
3
2
1
8
4
IC4A
NE5532
R77
10K
C47
33P
C46
33P
C51
33P
R85
10K
R81
10K
R79
75R
R82
75R
C48
100U
16V
R76
10K
R78
10K
R86
10K
3
2
1
8
4
IC15A
TL072
C109
10P
C110
10P
R221
75R
C45
100U
16V
R75
220K
R211
22K
R212
100K
R214
100K
STUDIO LEVEL
R148
10K
R56
10K
R58
10K
R55
4K7
R57
4K7
BUS1
CONB17
1
2
3
VR2A
10KX2
+LOG
4
5
6
VR2B
10KX2
+LOG
V+
STUDIO ON
FROM LED12
TO LED14
R184
100K
LED13
RED
S7
4PSUN
VDD
DIM
FROM LED16 TO LED19
R46
OPT
LED17
GRN
S11
2PSUN
TAPE 1
3
2
1
8
4
IC1A
TL072
FROM LED7
R6
7K5
C3
33P
R7
10K
C4
33P
R13
7K5
C5
100U
16V
LED8
RED
S5A
TAPE1 L+
TAPE1 L-
CON A29
R3
15K
R4
15K
R5
7K5
R1
100K
CON A30
C1
100U 16V
C2
100U
16V
R2
100K
CON A10
TAPE1 R+
TAPE1 R-
CON A9
R11
15K
R9
100K
R10
7K5
R12
15K
R8
100K
C7
100U 16V
C6
100U 16V
5
6
7
IC1B
TL072
C8
33P
R14
10K
C9
33P
R19
7K5
C13
33P
C10
100U 16V
LED9
RED
V+
CON F9
R173
24K
R172
24K
R174
24K
R175
7K5
R176
7K5
TALKBACK MIC
TR6
2SB737
C79
680P
C80
680P
C81
680P
C77
100U 16V
R178
4K7
R179
4K7
V-
C86
33P
R177
75R
C82
100U
16V
C88
100N
0.2
1
2
3
VR4
10K
-LOG
C83
100U
16V
R181
68K
STUDIO
LED25
RED
S18
4PSUN
"TO BUS"
R155
10K
R154
10K
R153
10K
R152
10K
R151
10K
R150
10K
R149
10K
BUS2
BUS3
BUS4
BUS5
BUS6
BUS7
BUS8
CONB5
CONB7
CONB9
CONB11
CONB13
CONB15
LED24
GRN
R84
10K
5
6
7
IC15B
TL072
C111
10P
R222
75R
C50
100U
16V
R83
220K
R213
22K
R216
100K
ALT1 R+
ALT1 R-
R88
10K
5
6
7
IC4B
NE5532
CON C8
CON C7
C52
33P
C56
33P
R93
10K
R89
10K
R87
75R
R90
75R
C53
100U
16V
CON C14
R96
10K
3
2
1
8
4
IC6A
NE5532
5
6
7
IC6B
NE5532
CON C12
CON C11
STUDIO L+
STUDIO L-
STUDIO R+
C61
33P
R101
10K
R94
10K
R105
10K
R97
10K
R95
75R
R98
75R
R103
75R
C58
100U
16V
C63
100U 16V
R92
10K
R100
10K
C57
33P
3
2
1
8
4
IC18A
TL072
5
6
7
IC18B
TL072
C112
10P
R223
75R
C60
100U
16V
C55
100U
16V
R91
220K
R217
22K
R215
22K
R218
100K
CONB8
"TO MIX"
R159
10K
R158
10K
R156
10K
R157
10K
BUS9
BUS10
BUS11
BUS12
CONB10
CONB12
CONB14
CONB3
LED23
GRN
S17
2PSUN
S16
2PSUN
COMM
R183
10K
LED26
RED
S19
4PSUN
C87
100U
16V
3
2
6
7
4
IC8
TL071
C85
33P
R124
1K1
R125
1K1
R127
1K6
R126
1K6
R128
16K
R129
16K
R130
360K
R131
360K
R182
75R
S1A2 S1A3
S1B3
S1C3
S1D3S1D2
S1C2
S1B2
C84
100U 16V
R180
68K
15KHz
10KHz
1KHz
50Hz
CON F10
V+
TR7
2SB737
LED1
GRN
C78
100U
16V
TAPE 2
3
2
1
8
4
IC2A
TL072
C14
33P
R26
7K5
C18
33P
R21
10K
C15
100U 16V
S5B
TAPE2 L+
TAPE2 L-
CON A31
CON A32
R17
15K
R18
15K
R16
100K
R15
100K
R20
7K5
C11
100U 16V
C12
100U 16V
CON A11
CON A12
TAPE2 R+
TAPE2 R-
EXT L+
CON A33
R25
15K
R24
15K
R23
100K
R31
15K
R27
7K5
R22
100K
C21
100U
16V
C16
100U
16V
C17
100U
16V
5
6
7
IC2B
TL072
3
2
1
8
4
IC3A
TL072
R28
10K
C19
33P
R33
7K5
C23
33P
C20
100U
16V
C25
100U
16V
LED10
RED
S5C
15KHz
10KHz
1KHz
TR10
J111
R143
10K
R142
10K
TR9
BC182
R134
1K6
R225
AOT
LED2
GRN
LED3
GRN
LED4
GRN
S1A1
S1B1
S1C1
TR8
BC212
3
2
1
8
4
IC15A
NE5532
R137
10K
R136
3K3
R140
47K
R139
100K
R138
4K7
R133
2M2
R132
2M2
D2
R135
OPT
C74
100U 16V
C70
10N
C71
10N
D3
4V7
LED5
RED
S2
2PSUN
1
2
3
VR1
10K
+LOG
OSC ON/OFF
"TO BUS"
"TO MIX"
5
6
7
IC15B
NE5532
R146
10K
C75
33P
R144
6K8
R145
10K
R206
10K
R147
10K
C105
33P
R204
75R
C76
100U 16V
LED6
GRN
S3
2PSUN
AUX1/2
FROM LED17
R161
10K
R160
10K
R162
10K
R163
10K
LMIX
RMIX
CONB19
CONB21
LED7
GRN
LED19
GRN
LED20
GRN
S12
2PSUN
V+
R170
10K
TR5
BC182
C62
33P
D5
D4
AUX1
AUX2
R224
75R
CONB33
CONB35
R171
150R
R99
220K
CON C13
R104
10K
STUDIO R-
R102
10K
R106
75R
NOTES
V- V-
AUX3
AUX4
AUX5
AUX6
CONB29
CONB31
CONB37
CONB39
AUX3/4
AUX5/6
OSC OUT
TO LED23
R164
10K
R165
10K
R166
10K
R167
10K
LED21
GRN
LED22
GRN
S4 2PSUN
S13
2PSUN
S14
2PSUN
CON A38
CON A37
TO LED8
V+ IC15
V- IC15
0V
13,14
V+ IC1,2,3,4,5,6
V+ IC7,8,9
10,11,12
R205
10K
R203
10R
C104
220U
25V
C103
220U
25V
C101
22U
25V
C102
22U
25V
V- V-
C72
100P
D1
R201
10R
R202
10R
R199
10R
C93
22U
25V
C95
22U
25V
C97
22U
25V
C99
22U
25V
C100
22U
25V
C98
22U
25V
C96
22U
25V
C94
22U
25V
C73
10U
16V
V-
50Hz
TO LED12
R141
4K7
-18V
0V
+18V R197
10R
R198
10R
CONB30/32/34
CONB36/38/40
CONB24/26/28
CONB18/20/22
AUDIO COMMON
C91220U
25V
C92220U
25V
LED11
GRN
S5D
S1D1
EXT
CON E9
CON E10
MIX L
MIX R
5
6
7
IC3B
TL072
C24
33P
R35
10K
R40
7K5
C28
33P
R42
10K
C30
100U
16V
EXT L-
EXT R+
EXT R-
CON A34
R32
15K
R30
100K
R39
15K
R38
15K
R34
7K5
R29
100K
CON A13
C26
100U 16V
C27
100U
16V
C22
100U
16V
CON A14
R41
7K5
R36
100K
R37
100K
FROM PC1194
SHEET 1
C29
33P
1 OF 4 INTERLOCK
MONITOR SELECT
MIX V REF GND
METALWORK GND
CONB23
CONB1
LINK
LINK
R200
10R
V- IC1,2,3,4,5,6
13,14
V- IC7,8,9
10,11,12
AUX7/8
R168
10K
R169
10K
S15
2PSUN
AUX7
AUX8
CONB25
CONB27
REV B
CHANGE C107-C112 INCLUSIVE FROM 33P TO 10P
ADD MISSING CONNECTOR INFORMATION
R208,210,212,214,216,218 CHANGE 47K TO 100K
R207,209,211,213,215,217 CHANGE 10K TO 22K
R59,67,75,83,91,99 CHANGE 10K TO 220K
R180 AND R181 CHANGE FROM 24K TO 68K
R116 CHANGE FROM 10K TO 100K
REV C
IC7A & B ALTD FROM TL072 TO NE5532
Date: March 24, 1992 Sheet 1 of 1
Size Document Number REV
D CD1091 4
Title
PC1194 - DMR MONITOR SUB
TW3 2EB ENGLAND
HOUNSLOW, MIDDX
WHITTON RD
UNIT 1, INWOOD BUSINESS PK
DDA LTD
R2
100K
MIX BUS L
MIX BUS COM
CONC 1
CONC 2
R1
100K
R3
75R
C4
100pF
C2
220uF
25V
C1
220uF
25V
R7
3K9
TR1
2SB737
R6 1K5
C6
100pF
C7
100uF
16V
TR2
BC184
5
6
7
IC1B
NE5532
+18V
R11
330R
C8
100uF
16V
R9
75R
R8
100K
C3220uF
25V
R10 12K
R14 10K
C9 33pF
3
2
1
8
4
IC1A
NE5532
R17
75R
R15
10K
-18V
INVERT
NON INV
SEND L+ RETURN L-
CONA 5 CONA 4
R18
10K
C11
100uF
16V
V-
R22
15K
3
2
1
8
4
IC2A
NE5532
R23
7K5
C14
33pF
R24
75R
C12
100uF
16V
C16
100uF
16V
C19
220nF
CONC 4
MAIN FADER
R31
75R
C20
33pF
R32
15K
R37
7K5
3
2
1
8
4
IC3A
NE5532
5
6
7
IC2B
NE5532
C18
100uF
16V
CONA 2
MIX OUT L-
R38
75R
C23
100uF
16V
-18V
+18V
PR1
5K
VERT
CONA 1
MIX OUT L+
R39
75R
C21
33pF
C22
100uF
16V
LEFT
5
6
7
IC3B
NE5532
R29
4K7
R30
4K7
C17
33pF
R35
15K
R34
15K
R36
7K5
R41
7K5
R40
7K5
R33
15K
C43
33pF
R27
220K
R28
220K
CONC 6
CONC 5
1
2
3
VR1
5K
FADER
PR4
500R
VERT
V+
R20
7K5
R64
7K5
C37
33pF
R21
15K
C15
33pF
C13
100uF
16V
R517
100K
R518
47R
SEND L- RETURN L+
CONA 6 CONA 3
C523
100uF
16V
R19
75R
R25
10K
R26
10K
INSERT
V-
R16 10K
C10
33pF
3
2
1
8
4
IC5A
NE5532
R55
10K
C32
33pF
R56
10K
+18V
R13
10K
INVERT
NON INV
INVERT
LK1B
NON INV
LK1A
R4
1K
R5
3K9
R47
1K5R48
3K9
TR3
2SB737
TR4
BC184
5
6
7
IC5B
NE5532
C29
100pF
R49 100K
-18V
+18V
R50
75R
C5
220uF
25V
C31
100uF
16V
C30
100uF
16V
C27
220uF
25V
R51
12K
MIX BUS R
CONC 3
C25
220uF
25V
C24
220uF
25V
R43
100K
R44
75R
R46
3K9
R45
1K
C26
100pF
-18V
R52
330R
C28
220uF
25V
V+
R58
75R
C33
33pF
R57
10K
R54
10K
INVERT
NON INV
LK2B
LK2A
SEND R+
SEND R-
RETURN R-
RETURN R+
CONB 6
CONB 7
CONB 5
CONB 4
R59
10K
R60
75R
R66
10K
R67
10K
C34
100uF
16V
C524
100uF
16V
INSERT
V+
V-
R61
7K5
R62
15K
C38
33pF
R65
75R
R63
15K
3
2
1
8
4
IC6A
NE5532
C36
100uF
16V
C35
100uF
16V
C39
100uF
16V
R519
100K
R520
47R
R69
220K
R68
220K
C42
220nF
CONC 7
CONC 9
CONC 8
MAIN FADER
PR5
500R
VERT
1
2
3
VR2
5K
FADER
3
2
1
8
4
IC7A
NE5532
5
6
7
IC7B
NE5532
R78
7K5
R77
7K5
R70
4K7
R71
4K7
5
6
7
IC6B
NE5532
R72
75R
C40
33pF
R73
15K
R75
15K
R76
15K
R74
15K
C41
100uF
16V
CONB 2
CONB 1
MIX OUT R-
MIX OUT R+
-18V
+18V
R79
75R
R80
75R
C46
100uF
16V
C45
100uF
16V
RIGHT
PR2
5K
VERT
V-
V+
CONA 8
MONO OUT -
C44
33pF
R89
75R
C50
100uF
16V
MONO
PR3
5K
VERT
R82
7K5
R81
7K5
C47
33pF
3
2
1
8
4
IC8A
NE5532
R83
15K
R88
7K5
R85
15K
R86
15K
R95
4K7
3
2
6
7
4
IC9
TL071
C51
33pF
CONB 9
CONB 10
MIX (L)
MIX (R)
R93
10K
R94
10K
R92
7K5
R91
7K5
5
6
7
IC8B
NE5532
R87
7K5
R84
15K
CONA 7
MONO OUT +
R90
75R
C48
33pF
C49
100uF
16V
REVISION NOTES:
REV 3 R93,R94 WERE 2K4 NOW 10K
R87,R88 WERE 7K5 NOW 1K
R83,R84,R85,R86 WERE 15K NOW 33K
V2+
V2-
TO OP AMPS
C527
22uF
25V
C529
22uF
25V
C533
22uF
25V
C534
22uF
25V
C532
22uF
25V
C530
22uF
25V
C528
22uF
25V
C531
22uF
25V
CONA 9
CONA 10
CONB 3
+18V
GND
-18V R516
10R
R515
10R
C535
22uF
25V
C525
22uF
25V
C526
22uF
25V
C536
22uF
25V
REV 4 R517,R519 WERE 220K NOW 100K
R10,R51 WERE 10K NOW 12K
C3 AND C4 REFS REVERSED
R87,R88 WERE 1K NOW 7K5
R83,R84,R85,R86 WERE 33K NOW 15K
ADDED IC9
Date: November 4, 1994 Sheet of
Size Document Number REV
C CD1262-1 A
Title
DMR12 AUXILIARY OUTPUT MODULE
DDA A MARK IV COMPANY
1 2
1 2
1 2
1 2
1 2
AUX OR F/B BUS LINK
CON1/31
CON1/29
CON1/27
CON1/25
C101
100P
R103
75R
R108
10K
R106
10K
R107
75R
R102
10K
C102
100P
C103
100P
3
2
1
8
4
IC102A
TL072
3
2
8 567
4
IC101
NE5534
C104
100/16
C105
220N
1
2
3
LEVEL
10K LOG
S1
CUT
R109
75R
R111
220K
R115
4K7
R114
75R
R113
10K
R112
4k7
C106
100p
C107
100/16
5
6
7
IC102B
TL072
C109
1.5N
5
6
7
IC104B
TL072
C110
100P
HF
47K R118
4K7
5
6
7
IC103B
TL072
R124
10K
R122
10K
3
2
1
8
4
IC103A
TL072
R130
2K2
R134
75R
R138
4K7
VR1
5K
CON2/1
C117
100/16
CON2/2
C118
100/16
AUX 2 CON2/3,4
AUX 3 CON2/5,6
AUX 4 CON2/7,8
3
2
1
8
4
IC104A
TL072
R131
2K2
R132
2K2
R133
2K2
R135
75R
R137
R139
R140
1 2
3
100K LIN
1 2
3
R121
6K8
R123
6K8
C112
3N3
C113
1N5
C108
22N
C111
22N
R119
6K8
R117
22K
R120
75R
LF
47K
10K LIN
R116
6K8
D2
RED LED
V-
R105
100K
R104
75R
1 2
1 2
1 2
CON1/35
CON1/33
CON1/39
CON1/37
THERE ARE FOUR IDENTICAL SECTIONS OF CIRCUIT ON THE BOARD
SECTION 2 COMPONENTS ARE NUMBERED FROM 200
SECTION 3 COMPONENTS ARE NUMBERED FROM 300
SECTION 4 COMPONENTS ARE NUMBERED FROM 400
CON1/1 METALWORK
D1
YELL LED
V-
SOLO ENABLE
R126
47K
R125
10K
CON1/2
R127 10K
CON1/4 SOLO ENABLE
V+
S2
SOLO
C115
22/25
C116
22/25
+17V
-17V
OV
R128
10R
R129
10R
CON1/30,32,34
CON1/24,26,28
CON1/40,36,22,20,18
CON1/23 AUDIO REFERENCE
21 MIX L
22 0V
23 AUDIO REF
24 V-
26 V-
28 V-
32 V+
34 V+
36 0V
38 0V
25 AUX 4
27 AUX 3
29 AUX 2
31 AUX 1
33 F/B 2
35 F/B 1
37 F/B 4
39 F/B 3
11 GROUP 4
13 GROUP 3
15 GROUP 2
17 GROUP 1
18 0V
19 MIX R
16
14
12
1 MWK GND
4 SOLO ENABLE
2 SOLO AUDIO
6 48V
3 GROUP 8
5 GROUP 7
7 GROUP 6
9 GROUP 5
8
10 20 0V 30 V+ 40 0V
Date: February 17, 1992 Sheet 1 of 1
Size Document Number REV
D CD1134 (PC1253 & P C1254) 2
Title
DMR Stereo Input
Hounslow
Whitton Road
Unit 1, Inwood Business Park
DDA Ltd
Sub-Board
L PST HPF 50Hz
L PST HPF 100H
R93
36K
R95
10K
C37
100U
16V 3
2
1
8
4
IC13A
TL072
R94
18K
C38
100U
16V
5
6
7
IC13B
TL072
R96
10K
R91
22K
R92
11K
C33
100N
C34
100N
C35
100N
C36
100N
S8
2PSUJ
A
B
CON 6/11
CON 6/12
D6 LED
3
2
1
8
4
IC11A
TL072
C113
100U
16V
R238
47K
5
6
7
IC11B
TL072
C114
100U
16V
C1
2N2
C2
1N
C3
3N3
C4
1N5
S6
2PSUJ
S7
4PSUJ
WIDTH IN
D5 LED
10
9
8
IC9C
TL074
C27
100U
16V
R2
11K
R1
11K
R4
4K7
R3
4K7
S5
4PSUN
BAL WIDTH
C99
33P
3
2
1
4
1
1
IC10A
TL074
12
13
14
IC10D
TL074
5
6
7
IC9B
TL074
R78
56K
1
2
3
POT3A
4K7X2
R222
75R
R64
10K
C24
100U
16V
R69
2K2
R73
22K
L/R/MONO
R60
10K
R61
24K
R63
24K
C97
33P
R62
24K
R59
10K
3
2
1
8
4
IC5A
TL072
C22
33P
PHASEMETER
R246
75R
R247
10K
3
2
1
8
4
IC3A
TL072
R310
3K6
R57
10K
R248
22K
RP3
5K 1/4
METER L+
METER L-
+10db
LK6-A
3
2
1
8
4
IC1A
TL072
C9
100U
16V
R27
15K
R26
15K
C45
33P
R28
7K5
C10
100U
16V
R24
100K
R25
100K
C11
33P
R30
7K5
C44
100U
16V
R29
75R
R295
24K
LEFT -
LEFT +
L PRE PH
R35
10K
5
6
7
IC1B
TL072
R34
75R
C12
100U
16V
R53
10K
R54
75R
5
6
7
IC3B
TL072
5
6
7
IC5B
TL072
R311
3K6
R250
10K
R251
22K
C43
33P
R103
10K
R32
330R
R33
330R
RP4
5K 1/4
1 2
3
POT1A
4K7X2
CON 6/1
Sub-Board
L PRE MONO L PST PH
R305
75R
R58
75R
C23
100U
16V
R52
10K
R65
10K
3
2
1
8
4
IC6A
TL072
R301
24K
R302
24K
S1
2PSUJ
S3
2PSUJ
CON 6/3 CON 6/2
C127
100U
16V
R75
75R
R67
1K
R68
1K5
R76
75R
R70
2K2
R72
1K5
R71
1K
R74
22K
1
2
3
POT2A
4K7X2
4
5
6
POT2B
4K7X2
S2
2PSUJ
R224
75R
C25
100U
16V
R223
75R
C98
33P
C26
100U
16V
R81
10K
R83
100K
3
2
1
4
1
1
IC9A
TL074
5
6
7
IC10B
TL074
R77
56K
4
5
6
POT3B
4K7X2
R85
47K
10
9
8
IC10C
TL074
R6
11K
R5
11K
3
2
1
8
4
IC12A
TL072
C115
100U
16V
R239
47K
R240
47K
C5
2N2
C6
1N
C7
3N3
R PST HFP 50Hz
L PRE HPF
R PRE HPF
R87
36K
3
2
1
8
4
IC14A
TL072
C39
100U
16V
R88
18K
R97
10K
R89
11K
C29
100N
C30
100N
CON 6/13
CON 6/17
CON 6/15
R PST HPF 100H
D2 LED
R12
10K
R11
10K
5
6
7
IC14B
TL072
C40
100U
16V
R98
10K
LK3-B
LK3-A
LK3-C
LK3-D
R90
22K
C31
100N
C32
100N
S11
4PSUN
solo
CON 6/14
SOLO
NOTE:
R10
47K
5
6
7
IC12B
TL072
C116
100U
16V
R241
47K
C8
1N5
solo en
PRE F L
PRE F R
POST F L
R86
47K
TR3
BC212
C28
100U
16V
R218
100K
R217
10K
R8
4K7
R7
4K7
C95
470N
V+
V+
PEAK LED
R82
10K
R84
100K
12
13
14
IC9D
TL074
R215
100K
V+
INSERT
R306
10K
R PRE MONO
R PRE MONO
R PST PH
R49
10K
R128
10K
C136
33P
R66
10K
R304
10K
R307
24K
3
2
1
8
4
IC15A
NE5532
C20
33P
R56
75R
C21
100U
16V
R303
10K
S4
2PSUJ
CON 6/4
CON 6/5
CON 6/6
R PRE PH
R249
75R
R55
10K
R50
10K
R51
75R
5
6
7
IC2B
TL072
R48
75R
C19
100U
16V
R47
10K
5
6
7
IC6B
TL072
R44
10K
C18
33P
R46
330R
R45
330R
4 5
6
POT1B
4K7X2
METER R+
METER R-
+10db
C16
33P
C15
33P
R37
100K
C13
100U
16V
R38
15K
R39
15K
R36
100K
C17
100U
16V
R42
75R
R41
7K5
R40
7K5
3
2
1
8
4
IC2A
TL072
C14
100U
16V
LK6-B
R296
24K
RIGHT +
RIGHT -
R102
47K
R104
680R
C41
33P
R105
680R
3
2
1
4
1
1
IC7A
TL074
R99
47K
C42
3N3
1 2
3
POT4A
4K7X2
R121
47K
R123
47K
C56
33P
10
9
8
IC7C
TL074
R122
75R
R126
10K
R127
10K
R9
3K3
12
13
14
IC7D
TL074
R124
680R
R125
680R
C58
4N7
C55
1U
C57
1U
4
5
6
POT5B
100KX4
1
2
3
POT5A
1 2
3
POT7A
4K7X2
Sub-Board
R135
75R
R170
10K
R198
75R
R201
10K
C90
33P
C93
33P
C54
100U
16V
C89
33P
R129
10K
3
2
1
8
4
IC16A
NE5532
C92
33P
5
6
7
IC7B
TL074
R318
10K
R321
75R
C138
33P
R319
10K
R320
75R
SEND RETURN
C66
100U
16V R138
10K
C68
100U
16V
C75
100U
16V
C76
100U
16V
R199
10K
R200
75R
C91
100U
16V
C69
33P
C67
100U
16V
R142
7K5
R144
7K5
R140
100K
R141
100K
R152
7K5
R153
7K5
R143
7K5
L SEND+
L SEND-
R SEND+
R SEND-
L RET+
L RET-
R RET+
R RET-
C71
100U
16V
C72
100U
16V
R213
1K8
R145
7K5
5
6
7
IC15B
NE5532
R212
12K
R211
12K
C60
100U
16V
LK2-B
LK2-A
LK2-C
TR1
BC182
R216
100K
TR2
BC182
LK2-D
C94
100U
16V R214
1K8
R146
75R
C70
33P
5
6
7
IC16B
NE5532
R150
75R
C73
33P
PRE F L
PRE F R
PRE F L
POST F L
POST F R
PRE F R
V+
PEAK
D9
LED
When P&G Faders are fitted:-
1) Do NOT fit R156 and R163
2) Replace R157 and R164 with wire links
R300
100RTR5
BC212
V+
14
AI
4
AO
6
AC
2
BI
11
BO
9
BC
13
V-
7
0V
1
0V
3
0V
5
0V
12
0V
10
0V
8
IC19
SSM2402
R268
47KR220
100K
R219
10K
R221
100K
TR4
BC212
C96
470N
PRE F L
V+
V+
10K
R160
4K7
R156
220K
R162
75R
R158
220K
C78
33P
3
2
1
8
4
IC17A
NE5532
R157
47R
R159
680K
R161
3K6
C77
220N
RP1
500RH
1
2
3
FADER1A
P&G ST
POST F L
POST F R
POST F R
R173
1K
C83
33P
R175
75R R180
100K
R172
1K
5
6
7
IC17B
NE5532
R171
22K
C85
100U
16V
C79
100U
16V
R174
20K
L BUS
C84
33P
R179
100K
R21
1K
R23
75R
R177
22K
5
6
7
IC23B
NE5532
R22
1K
C86
100U
16V
D3
1N4148
C82
100U
16V
D13
RED
R178
20K
D6
GRN
R308
150R
R BUS
LED A LED B
V+
ON
10K
R163
220K
R167
4K7
R169
75R
R165
220K
C81
33P
3
2
1
8
4
IC23A
NE5532
LK4-A
R164
47R
R166
680K
R168
3K6
C80
220N
RP2
500RH
4
5
6
FADER1B
P&G ST
C126
47N
R297
1K
R299
100R
D
5
Q
1
CLK
3
Q
2
R
4
S
6
IC21A
4013
R270
2K2
V+
14
AI
4
AO
6
AC
2
BI
11
BO
9
BC
13
V-
7
0V
1
0V
3
0V
5
0V
12
0V
10
0V
8
IC20
SSM2402
PRE F R
+5V
V-
AUX 7/8
R149
7K5
R20
10K
R19
10K
AUX 7
AUX 8
MUTE IN
DIR
D10 LED
R139
75R
R17
10K
R18
10K
C74
33P
R151
7K5
R155
100K
R154
100K
1
2
3
POT12A
10KX2
+LOG
1
2
3
POT13A
10KX2
+LOG
4
5
6
POT13B
10KX2
+LOG
S23
6PSUJ
AUX 5
pre/off/post
D1 LED
R136
10KR137
10K
R120
10K
S10
4PSUN
S15
DPDT
C/OFF
PRE F L
R116
47K
C49
33P
R115
47K
R113
10K
12
13
14
IC8D
TL074
R112
10K
R31
3K3
R118
680R
R117
680R
C59
10N
C51
1U
C52
1U
1
2
3
POT6A
4K7X2
4 5
6
POT7B
4K7X2
L EQ IN
D17 LED
R107
680R
C46
33P
R106
680R
R100
75R
C50
3N3
4 5
6
POT4B
4K7X2
S22
4PSUJ
A
B
CON 6/15
CON 6/17
CON 6/16
R EQ IN
Sub-Board
R111
75R
5
6
7
IC8B
TL074
R109
47K
R108
47K
CON 6/18
10
9
8
IC8C
TL074
R114
75R
R101
3K3
R110
3K3
R314
10K
R317
75R
3
2
1
4
1
1
IC8A
TL074
C137
33P
C47
10N
C48
4N7
1
0
11
1
2
POT5D
100KX4
7
8
9
POT5C
4
5
6
POT6B
4K7X2
pre/off/post
R119
10K
C53
100U
16V
R316
75R
R315
10K
POT9
10K +LOG
S13
SPDT
C/OFF
PRE FDR
PST FDR
PRE F R
POST F L
POST F R
POST F L
POST F R
AUX
5/6
C120
33P
R258
10K
R312
10K
R266
10K
R313
10K
C119
100U
16V
C123
100U
16V
R13
10K
POT8
10K +LOG
4
5
6
POT12B
10KX2
+LOG
AUX 1
AUX 6
DIRECT
LEFT
R256
10K
C118
33P
R252
75R
C117
100U
16V
R255
10K
5
6
7
IC18B
NE5532
R257
10K
R254
75R
C121
100U
16V
R260
75R
R253
10K
3
2
1
8
4
IC18A
NE5532
L DIR +
R DIR +
L DIR -
MUTE OUT
R271
100K
R273
4K7
R274
150K
TR6
BC182
R298
10K
TR10
BC182
R272
100K
+5V+5V
+5V
OV
OV
OV
OV
C135
2U2
63V
CUT LED
CUT
R278
100K
R279
100K
TR7
BC212
LK4-B
R280
100K
R281
1K
TR8
BC212
D23
1N4148
R324
10K
TR12
BC182
CUT +VE
+5V+5V
+V9
V-
-V4
Sub-Board
D19
LED
LPF
EQ
DIR
1/2
HPF IN
3/4
5/6
SIG
PEAK
MIX
11/12
9/10
TR11
BC212
D4
1N4148
R309
10K
D12
RED
D9
RED
D15
RED
D16
RED
D11
RED
D1
RED
D10
GRN
D7
GRN
D22
GRN
D17
GRN
D25
16V
CON 6/19
CON 6/20
+V9
-V4
MWK GND
GRP 8
GRP 7
GRP 6
GRP 5
GRP 4
GRP 3
GRP 2
GRP 1
SOLO
SOLO EN
+48V
GRP 12
GRP 11
GRP 10
GRP 9
7/8
WIDTH IN
CUT
SOLO
D14
RED
D19
RED
1
2
3
CON1
3WAY
MH
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
CON3
40WAY
IDCMH
D2
YEL
D5
GRN
1
2
3
4
CON6
4WAY
MH
LED A LED B
OV
SIGNAL
PRESENT
Fader Start
Connects to
CUT Switch & Led
D22
LED
MIDI
R286
47K
TR9
BC212
D24
1N4148
R325
75R
C143
100N
1
2
3
CON2
3WAY
MH
1
2
3
CON9
3WAY
MH
CUT +VE
CUT -VE
MUTE IN
MUTE OUT
-V4
R285
75R
R282
100K
R283
1K
R284
100K
C131
22U
25V
C132
2N2
3
2
6
7
4
IC22
TL071
LK1-A
LK1-B
R323
75R
+V
DIRECT
RIGHT
R265
10K
R263
10K
R264
10K
R262
75R
R261
10K
C122
33P
R130
10R
R233
10R
R232
10R
R228
10R
R229
10R
R DIR -
PRE FDR
PST FDR
+18V
R275
100R
C124
33P
R236
10R
R131
10R
R133
10R
R234
10R
R14
10K
R16
10K
R15
10K
POT10
10K +LOG
AUX 2
AUX 3
AUX 4
+18V
pre/off/post
R294
10K
C134
100U
16V
POT11
10K +LOG
S14
SPDT
C/OFF
PRE FDR
PST FDR
8 10 12
PRE FDR
PRE FADE MONO
R290
10K
R291
10K
R288
24K
R289
24K
C133
33P
R292
24K
5
6
7
IC4B
TL072
R293
75R
PST FDR
4 6
PRE F L
PRE F R
POST FADE MONO
R187
10KR183
10K
R184
10K
C88
100U
16V
C87
33P
R185
24K
R181
24K
3
2
1
8
4
IC4A
TL072
R186
75R
R182
24K
2
POST F L
POST F R
RIGHT
D7
LED
D11
LED
R188
10K
R189
10K
R190
10K
S9
4PSUJ
S16
4PSUJ
1
L BUS
R BUS
LEFT
D14
LED
D15
LED
D16
LED
R191
10K
R192
10K
R193
10K
R194
10K
R195
10K
S17
4PSUJ
S18
4PSUJ
3 5
D12
LED
D13
LED
R196
10K
R197
10K
R242
10K
R243
10K
S19
4PSUJ
S20
4PSUJ
S21
4PSUJ
7 9 11
R245
10K
R244
10K
C102
220U
25V
R235
10R
C101
220U
25V
R134
10R
R132
10R
R225
10R
C62
22U
25V
C65
22U
25V
C112
22U
25V
C104
22U
25V
C111
22U
25V
C105
22U
25V
+V1 +V2
-18V
-V1 -V2
R269
10R
R226
10R
R227
10R
R231
10R
R230
10R
C125
22U
25V
C63
22U
25V
C139
22U
25V
C140
22U
25V
C106
22U
25V
C110
22U
25V
C103
22U
25V
C107
22U
25V
C108
22U
25V
C141
22U
25V
+V3 +V4 +V5 +V6 +V7 +V8
-V3 -V4 - V5 -V6 -V7 -V8 -V9
-18V
-18V
R322
100R
C128
220U
25V
C142
220U
25V
V2 IC5,6,9,10
V1 IC1,2,3
V3 IC11,12,13,14
V4 LED CHAIN
V5 IC7,8
V6 IC15,16
V7 IC4,17,23
V8 IC18
V9 IC19,20,22
C129
2U2
63V
LK5
VIN
1
0
V
2
VOUT
3
REG1
78L05
+5V+V9
OV LEFT +
RIGHT +
R SEND +
L RET +
R RET +
L DIR +
R DIR +
LEFT -
RIGHT -
L RET -
R RET -
L DIR -
R DIR -
L SEND -
R SEND -
L SEND +
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
CON5
20WAY
IDCMRH
METER L+
METER L-
METER R+
METER R-
MUTE OUT
VCC
PA R
PA L
VREF
AUX 8
AUX 7
AUX 6
AUX 5
AUX 3
AUX 4
AUX 1
AUX 2
1
2
3
4
CON4
4WAY
MH
+18V
-18V
Date: September 24, 1991 Sheet of 1
Size Document Number REV
C CD1130-2 2
Title
MIDI I/O PCB
MIDDLESEX TW3 2EB
HOUNSLOW
WHITTON ROAD
UNIT 1, INWOOD BUSINESS PARK
DDA LTD
IN25
IN26
IN27
IN28
IN29
IN30
IN31
IN32
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U14
74HCT245
VCC
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7IN17
IN18
IN19
IN20
IN21
IN22
IN23
IN24
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U4
74HCT245
VCC
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U12
74HCT245
D0
D1
D2
D3
D4
D5
D6
D7IN9
IN10
IN11
IN12
IN13
IN14
IN15
IN16
VCC
IN6
IN7
IN8
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U2
74HCT245
VCC
D0
D1
D2
D3
D4
D5
D6
D7IN1
IN2
IN3
IN4
IN5
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
U5
74HCT138
VCC
RD*
A0
A1
A2
-IO1
IN33
IN34
IN35
IN36
IN37
IN38
IN39
IN40
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U8
74HCT245
VCC
D0
D1
D2
D3
D4
D5
D6
D7 IN41
IN42
IN43
IN44
IN45
IN46
IN47
IN48
VCC
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U16
74HCT245
D0
D1
D2
D3
D4
D5
D6
D7 IN49
IN50
IN51
IN52
IN53
IN54
IN55
IN56
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U10
74HCT245
VCC
D0
D1
D2
D3
D4
D5
D6
D7 IN57
IN58
IN59
IN60
IN61
IN62
IN63
IN64
A1
2
B1
18
A2
3
B2
17
A3
4
B3
16
A4
5
B4
15
A5
6
B5
14
A6
7
B6
13
A7
8
B7
12
A8
9
B8
11
G
19
DIR
1
U18
74HCT245
VCC
D0
D1
D2
D3
D4
D5
D6
D7
0V0V0V0V
VCC
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
JP3
HEADER 10X2
D0
D1
D2
WR*RD*
A0
A1
A2
-IO1
D3
D4
D5
D6
D7
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
OUT15
OUT16
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
JP1
HEADER 17X2
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
IN9
IN10
IN11
IN12
IN13
IN14
IN15
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN1
10K
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN3
10K
OUT17
OUT18
OUT19
OUT20
OUT21
OUT22
OUT23
OUT24
OUT25
OUT26
OUT27
OUT28
OUT29
OUT30
OUT31
OUT32
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
JP1
HEADER 17X2
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN2
10K
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN4
10K
IN17
IN18
IN19
IN20
IN21
IN22
IN23
IN24
IN25
IN26
IN27
IN28
IN29
IN30
IN31
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
JP1
HEADER 17X2
OUT33
OUT34
OUT35
OUT36
OUT37
OUT38
OUT39
OUT40
OUT41
OUT42
OUT43
OUT44
OUT45
OUT46
OUT47
OUT48
OUT49
OUT50
OUT51
OUT52
OUT53
OUT54
OUT55
OUT56
OUT57
OUT58
OUT59
OUT60
OUT61
OUT62
OUT63
OUT64
IN33
IN34
IN35
IN36
IN37
IN38
IN39
IN40
IN41
IN42
IN43
IN44
IN45
IN46
IN47
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN5
10K
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN7
10K
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
JP1
HEADER 17X2
IN49
IN50
IN51
IN52
IN53
IN54
IN55
IN56
IN57
IN58
IN59
IN60
IN61
IN62
IN63
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN6
10K
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
RN8
10K
0V
IN64
0V
IN48IN32
0V0V
IN16
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
U6
74HCT138
VCC
WR*
A0
A1
A2
-IO1
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U1
74HCT574
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7D1 2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U11
74HCT574
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
OUT15
OUT16
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U3
74HCT574
D0
D1
D2
D3
D4
D5
D6
D7 OUT17
OUT18
OUT19
OUT20
OUT21
OUT22
OUT23
OUT24
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U13
74HCT574
OUT25
OUT26
OUT27
OUT28
OUT29
OUT30
OUT31
OUT32D0
D1
D2
D3
D4
D5
D6
D7
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U17
74HCT574
OUT57
OUT58
OUT59
OUT60
OUT61
OUT62
OUT63
OUT64D0
D1
D2
D3
D4
D5
D6
D7OUT49
OUT50
OUT51
OUT52
OUT53
OUT54
OUT55
OUT56
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U9
74HCT574
D0
D1
D2
D3
D4
D5
D6
D7
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U15
74HCT574
OUT41
OUT42
OUT43
OUT44
OUT45
OUT46
OUT47
OUT48D0
D1
D2
D3
D4
D5
D6
D7
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U7
74HCT574
OUT33
OUT34
OUT35
OUT36
OUT37
OUT38
OUT39
OUT40D0
D1
D2
D3
D4
D5
D6
D7
C1
100n
C2
100n
C11
100n
C12
100n
C13
100n
VCC
C14
100n
C15
100n
C16
100n
C17
100n
C18
100n
C10
100nC9100nC8100nC7100nC4100nC3100nC5100nC6100n
Date: September 21, 1992 Sheet of 1
Size Document Number REV
B CD1131 2
Title
MIDI DISPLAY AND KEYBOARD
DDA, HOUNSLOW, MIDDX, TW3 2EB ENGLAND.
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
JP1
26WAY
Fitted to track
side of pcb
KC0
KC1
KC2
KC3
KC4
KR0
KR1
KR2
KR3
1
2
6
SW1
SW2
SW11
3
4
8
SW13
SW4
SW3
5
MUTE
0
SW5
SW6
SW15 SW17
SW8
SW7
INC
RECALL
DEC
SW9
SW10
SW19
KR0
KR1
KR2
KR3
KC0
KC1
KC2
KC3
KC4
LR5
GROUP
MIDI
CLEAR
LR0
LR1
LR2
LR3
LC0
LC1
LC2
LC3
LC4
LC5
LC6
LC7
LR4
DUMPSTORE
SW20
SOLO
SW16 SW18
9
SW14
7
SW12
LC0
LC1
LC2
LC3
LC4
LC5
LC6
LC7
GROUP
D9
RED
1
09854237
16
LD1
HDSP7303
1
09854237
16
LD2
HDSP7303
#4
1
09854237
16
LD3
HDSP7303
#8
D4
RED
D13
RED
MUTE
#3
D6
RED
D3
RED
D5
RED
D16
RED
#1
#2
SOLO
D1
RED
D2
RED
#9
#0
D11
RED
D12
RED
D15
RED
D14
RED
#6
#7
RECALL
D8
RED
D20
RED
DUMP
MIDI
D10
RED
STORE
D18
RED
#5
LR0
LR1
LR2
LR3
LR4
LR5
Date: November 1, 1991 Sheet 1 of 1
Size Document Number REV
C CD1132-2 3
Title
MIDI LOGIC BOARD
MIDDLESEX TW3 2EB
HOUNSLOW
WHITTON ROAD
UNIT 1, INWOOD BUSINESS PARK
DDA LTD
R6
220R
D5
1N4148
VCC
R3
470R
2
3
5
6
8
7
U11
6N138
P1,0
P1,1
P1,2
P1,3
P1,4
P1,5
P1,6
P1,7
VCC
1
2 3 4 5 6 7 8 9
RP2
8X10K
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S1
8DIL
RESET
RESET*
RESIN*
VCC
1
2
RESET
2WAY
C1
47N
SENSE
7
RSIN
2
REF
1
CT
3
RS
5
RS
6
+
8
-
4
U1
7705
C13
10U
IRQ*
NMI*
RESET*
X1
2
EX2
3
RESET
6
NMI
4
IRQ1
5
P10
13
P11
14
P12
15
P13
16
P14
17
P15
18
P16
19
P17
20
P20
8
P21
9
P22
10
P23
11
P24
12
VCCSTB
21
P30
37
P31
36
P32
35
P33
34
P34
33
P35
32
P36
31
P37
30
P40
29
P41
28
P42
27
P43
26
P44
25
P45
24
P46
23
P47
22
SC1
39
SC2
38
E
40
U3
6303
C3
22P
C4
22P
X1
4MHZ
VCC
D0
D1
D2
D3
D4
D5
R7
1K
A0
A1
A2
A3
A4
A5
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
C
11
OC
1
U12
74HCT573
RXMID
TXMID
R5
220R
6 14
U10C
74HCT240
4 16
U10B
74HCT240
8 12
U10D
74HCT240
2 18
1
U10A
74HCT240
VCC
R2
220R
R1
220R
8
15
7
14
6
13
5
12
4
11
3
10
2
9
1
SKT1
15WAY
SP1
10NR8
27R
VCC
R4
220R
VI
G
N
D
VO
U9
7805
RESET*
NMI*
IRQ*
RESIN*
CLKEN*
SL0
SL1
SL2
1
2
3
4
5
6
7
8
9
RP1
8X10K
WR*
VCC
A6
A7
R*/W
1
2
3
U13A
74HCT00
4
5
6
U13B
74HCT00
A8
A9
A10
A11
A12
A13
A14
A15
AS*
R/W*
E
D6
D7
L
H
L
MIDCLK
RXMID
TXMID
CLKEN*
P1,0
P1,1
P1,2
P1,3
P1,4
P1,5
P1,6
P1,7
9
10
8
U13C
74HCT00
RD*
A8
A9
A10
A11
A12
A13
A14
A15
1
2
3
4
5
6
11
12
8
U14
74HCT30
11 9
U10E
74HCT240
A15
ROM*
IO*
A5
A6
A7
VCC
12
13
11
U13D 74HCT00
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
U15
74HCT138
KEY*
-IO1
-IO2
-IO3
-IO4
-IO5
-IO6
-IO7
C12
22U
C10
47N
A2
A1
A0
VCC
C11
4700U
D0
D1
D2
D3
D4
D5
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
JP1
20WAY
D6
D7
-IO1
WR*RD*
VCC
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
U8
74HCT138
LR0
LR1
LR2
LR3
LC0
LC1
LC2
LC3
LC4
LC5
LC6
LC7
LR4
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
JP4
26WAY
KC0
KR0
KR1
KR2
KR3
KC4
KC3
KC2
KC1
KC0
LR5
D0
DB0
12
DB1
13
DB2
14
DB3
15
DB4
16
DB5
17
DB6
18
DB7
19
RD
10
WR
11
CS
22
CLK
3
RESET
9
A0
21
IRQ
4
RL0
38
RL1
39
RL2
1
RL3
2
RL4
5
RL5
6
RL6
7
RL7
8
SHFT
36
CN/ST
37
BD
23
SL0
32
SL1
33
SL2
34
SL3
35
OA0
27
OA1
26
OA2
25
OA3
24
OB0
31
OB1
30
OB2
29
OB3
28
U7
8279
D0
D1
D2
D3
D4
D5
D6
D7
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
CE
20
OE
22
PGM
27
VPP
1
O0
11
O1
12
O2
13
O3
15
O4
16
O5
17
O6
18
O7
19
U6
27C256
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
ROM*
RD*
VCC
A0
A1
A2
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
3
A8
25
A9
24
A10
21
A11
23
A12
2
CS1
20
CS2
26
WE
27
OE
22
D0
11
D1
12
D2
13
D3
15
D4
16
D5
17
D6
18
D7
19
U5
GR881
D0
D1
D2
D1
D2
D3
D4
D5
D6
D7
RESET
A0
KEY*
RD*
WR*
E
15 5
U10G
74HCT240
KC1
KC2
KC3
KC4
KC5
KC6
KC7
SHIFT0
CTRL0
SL0
SL1
SL2
1 2RP3A 100R
5 6RP3C 100R
5 6RP4C 100R
1A1
2
1Y1
18
1A2
4
1Y2
16
1A3
6
1Y3
14
1A4
8
1Y4
12
2A1
11
2Y1
9
2A2
13
2Y2
7
2A3
15
2Y3
5
2A4
17
2Y4
3
1G
1
2G
19
U16
74HCT244
KR0
KR1
KR2
KR3
LC0
LC1
D1 1N4148
D3 1N4148
D2 1N4148
D4 1N4148
X0
13
X1
14
X2
15
X3
12
X4
1
X5
5
X6
2
X7
4
INH
6
A
11
B
10
C
9
X 3+
V
1
6
0
V
A
7
0
V
D
8
U17
4051
LR0
LR1
LR2
LR3
LR4
LR5
LR6
LR7
VCC
I0
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
O0
18
O1
17
O2
16
O3
15
O4
14
O5
13
O6
12
O7
11
GND
9
+V
10
U18
2803
LC2
LC3
LC4
LC5
LC6
LC7
3 4RP3B 100R
7 8RP3D 100R
1 2RP4A 100R
3 4RP4B 100R
7 8RP4D 100R
VCC
17 3
1
9
U10H
74HCT240
D3
D4
D5
D6
D7
IRQ*
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
RD*
WR*
A15
VCC
NON-VOLATILE
E
CLKEN*
13 7
U10F
74HCT240
D
2
Q
5
CLK
3
Q
6
P
R
4
C
L
1
U2A
74HCT74
D
12
Q
9
CLK
11
Q
8
P
R
1
0
C
L
1
3
U2B
74HCT74
MIDCLK
VSS
VDD
VCC
C1
47NC447NC547NC647NC747NC847NC947N
C14
47N
C15
47N
C16
47N
C17
47N
C18
47N
C19
47N
C20
47N
C21
47N
C23
47N
C22
47N
Date: December 14, 1993 Sheet 1 of 1
Size Document Number REV
C CD1219-1 A
Title
HD/DCM/DCM HD AUDIO POWER SUPPLY
DDA LTD.
+48V [10]
CHASSIS
R45
10k
R46
10k
FRONT PANEL TEST POINT
R3
470R
R1
82R
R2
2k7 1W
PR1
500R
C3
33/63
FL1
0.25A Q
C1
1000/63
VI
1
2
VO
3
IC1
LM783
D1
2KBP02
FL4
3.15A Q
R42
100R
C22
100n
240V BROWN
220V PINK
VIOLET
RED
100
110
240
220
S1
TH1
SG200
FL5
SEE REAR PANEL
100V BLACK
110V BLUE
GREY
RED
YELLOW/BLUE
PHAN
PHAN
0V
D3
35A BRIDGE
BROWN
BLUE
YELLOW
BLUE
C6
100n
C4
10,000/40
C5
10,000/40
C2
33/63
FL2
15A Q/B
R6
0.1R
R7
0.1R
R8
0.1R
TR2
TR1
MJ2955
PC1141
R10
0.1R
R11
0.1R
R470.1R
R48
0.1R
REG
D20
LED
R43
3K3
9
[1] [2]
R13
1K5
+18V
FRONT PANEL TEST POINT
[5] [6] [7] [8] [9]
D17
1N5402
0V
R44
3K3
6
5
D15
LED
SENSE
DRIVE
DRIVE-
SENSE-
UNREG
UNREG-
R9
0.1R
R19
0.1R
TR3
TR4
TR8
TR7
8
7 10
14
3
C9
100n
C8
10,000/40
C7
10,000/40
E L N
MAINS FUSE 6.3A/T 20mm 220/240V
10A/T 20MM 110/120V
FL3
15A Q/B
R18
0.1R
R17
0.1R
R16
0.1R
TR6
R21
0.1R
R20
0.1R
R49
0.1R
R500.1R
RESISTORS R47, 48, 49, 50 NOT FITTED IN HEAVY DUTY SUPPLY
FL2 AND 3 FITTED AS 6.3A/Q IN HEAVY DUTY SUPPLY
TR5
2N3055
REG-
2
D16
LED
[3] [4]
R15
1K5
-18V
D18
1N5402
FRONT PANEL TEST POINT
(9)REG
R30
6k8
FL2 AND 3 FITTED AS 10A/Q IN DCM POWER SUPPLY
FL2 AND 3 FITTED AS 15A/Q IN DCM HD SUPPLY
R29
2k2
R28
2K2
R23
100R
TR10
BC212
D6
1N4002
R22
1R
TR21
TIP31
SENSE
DRIVE
(8)
(7)
PC1141
(10) UNREG
R26
75R
R24
100R
R25
3k3
D8
1N4148
D7
1N4148
TR9
BC212
TR22
BC441
C10
100/40
R27
3k3
TR11
BC182
TR12
BC182
D9
1N4148
D10
12V
TR14
BC182
TR13
BC212
C13
100p
C15
100n
C14
100/40
PR2
5k
R31
15k
0V
+48V
CHASSIS
0V
+18V
ORANGE
GREEN
GREEN/YELLOW
1
2
3
6
7
8
459
10 +48V
-18V
HARTING
BLUE
BLUE
BROWN
BROWN
+18V
-18V
C17
100N
C16
100/40
R32
15k
PR3
5k
D11
12V
C12
100/40
C18
100/40
TR16
BC182
C19
100p
TR15
BC212
TR18
BC212
R36
3k3
TR17
BC212
C20
100n
C11
100n
UNREG-
0V
R38
75R
R39
100R
TR20
BC182
R37
3k3
C21
100/40
D12
1N4148
D13
1N4148
(5)
(6)
(1)
(4)
(3)
R40
1R
TR23
TIP32
TR24
2N5322
DRIVE-
SENSE-
R41
100R
TR19
BC182
D14
1N4002
R34
R2k2
R35
2k2
(2)REG-
R33
6k8
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