Dbx 1066 Schematic

ECN# DATE ECN# DATEDESCRIPTIONDESCRIPTION

A0 ---RELEASE TO PRODUCTION 1.3.96

A1 STANDARDIZE FILM CAPS 1.17.96712

A2 ADD 200 OHM 1% RESISTORS ACROSS U12 AND U20 PINS 2 AND 6 725 1.29.96

A3 CHANGE TO GROUNDING WASHER FOR REAN SLIMLINE JACK 749 2-7-96

A4 815 3-22-96CHANGE LEDS TO AMMO LEDS

A5 MOVE SWITCHCAPS FROM 04 TO 05 LEVEL 895 4-25-96

X0 ADDED .047uF CAPS TO U2 PIN 6 AND U6 PIN 6 ---

B0 8-29-961077INVERT PINS 16 AND 1 ON K1 AND K2, RELEASE TO PRODUCTION

B1 REMOVE 72-5143 QTY 2, ADD IN ITS PLACE 72-5142 QTY 2 1089 9-9-96

B2 CHANGE 44-0027 TO 44-0050, CHANGE 44-0026 TO 44-0051,

CHANGE 44-0022 TO 44-0052, CHANGE 72-4261 TO 72-4067

B3

CHANGE H2 FROM 32-2111 TO 32-1182, 10 PIN HDR TO 9 PIN 1829
CHANGE C12, C18, C25, C76 FROM 62-0067 TO 62-3091 2260

B4 OMIT C12, C18, C25 AND C76 P/N 62-3091

SOLDER CAPS P\N 62-0067 BETWEEN PIN 1&2 AND 2&3 OF H1

C0 CHANGE U4, U8, U25 AND U27 FROM 72-4321 TO 72-4331 31488 2-27-06

7-31-96

1386

4-2-97

5-27-98

2836 2-20-04

REVREV

|LINK
|056232C0.001
|056232C0.002
|056232C0.003
|056232C0.004
|056232C0.005

dbx Professional Products
8760 South Sandy Parkway

Sandy, Utah 84070

itle

dbx 1066 DUAL COMP/GATE/LIMITER 80-6232

Size Document Number Rev

056232C0.000 C0

B

Tuesday March 07 2006

Date Sheet of

05

CHANNEL 1

PEAKSTOP+
THRESHOLD

P8
20K402132

S1 OUT

EAK1 OUT

R149
2K

P13
50K402138

EXPANDER
THRESHOLD

+15V

+15V

R202

10.0K 1%

3

2

1

R208

10.0K 1%

+15V

-15V

-15V

R76
560K

3

1

3
2

2

C92
470PMD1

6
5

+15V

4

U24A

TL074

10.0K 1%

R265

12.1K 1%

R122

523K 1%

R121

2.2M

R5
523K 1%

13
12

U28B

-15V

R201

U1D

TL074

TL074

11

D26
1N4148

1

-15V

7

5
6

14

TL074

U16B

11

-15V

R120

10.0K 1%

R84
47K

R205

10.0K 1%

U25D

LM3046M

R207

2.00K 1%

R203

2K

9

1LLM50E1

7

9

10

1011

D53
1N4148

C94

1LLM50E1

PEAK LINK

EXP1 LEDS

EXP1 LEDS

R85
47K

TL074

U1C

R251

R252

13
12

LM3046M
U25C

C93

47K

470

U28D

78

8

-15

R253

3K

C91
470PMD1

TL074

6

R209
10K

14

-15V

D20
1N4148

D19
1N4148

R216

13.3K 1%

R213
10K

R95
200 1%

Q7
2N4124

R204
30K

8
9

R206
200 1%

U22C

12

-15

GAIN CV1

LM339

+15

14

"PLUS" THRESHOLD
TRIM

50K420222

R210

121K 1%

5

U24B

6

-15V

R246
200 1%

COMP CV1

COMP CV1

-15

11

R194

2.2M

TL074

R195
1K

C89
.047MA3

P24

7

R212

121K 1%

280K 1%

R255

20.0K 1%

-15V
1

3

R211

121K 1%

R254

LIMITER LINK

PEAKSTOP1

SC1 SOURCE

H3

EXP1 LEDS

COMPRESSOR
THRESHOLD

+15V

1

R154
412K 1%

2

3

-15V

P2

R214

10

9

1

U24C

TL074

123

EXPANDER
RATIO

R156

4.99K 1%

50K402138

3

1

8

P12
5K402130

50K402138

R20

1.5M

COMPRESSOR
RATIO

P3

10

2

D43
1N4148

R119
200

-15V

R172

12.1K 1%

U21C

9

R23
1K

TL074

U4C
LM3046M

9

10

LM339

6

U22B

7

2

R215
150K

121K 1%

R152

10.0K 1%

R153

10.0K 1%

TL074

6

U21B

5

-15V

8

17.4K 1%

6

9

11

D56
1N4148

78

U16C
TL074

1011

U4D
LM3046M

8

+15V

7

R24

1.15K 1%

U4A
LM3046M

D1
1N4148

U4E
LM3046M

R155
280K 1%

D41
1N4148

D13

1N4148

4
5

R117

31

2

TP500317

1314

12

+15V

3

U22A

LM339

SW7A
SW440051

AUTO

SW7D
SW440051

R22

2.00K 1%

-15V

ATTACK

P20
50K402136

123

1

2

TP4

523K 1%

R18
280K 1%

R276
47K

2

1
2
3

10
11
12

R217

17.4K 1%

U4B

3 5

LM3046M

-15V

R114

R115
523K 1%

+15V

4

2

1

U21A

3

TL074

Q9

+15V

U16A

2N4125

R274
10K

LM339

10

13

U22D

11

C108

2.2M50E1

D30
1N4148

D31

1N4148

D25

1N4148

1

2

4

R106

7.15K 1%

1

R275
47K

R104

200

TP3

TP500317

3
2

4

R108
200 1%

R21

1.5M

EXP1 LEDS

EXT SC1

INT SC1

LEVEL METER1

R118
3K

RELEASE

P11
50K402136

AUTO

SW7C
SW440051

C39
.22J

R105

20.0K 1%
C40

2.2M50E1

TL074

12

14

U16D

13

R107
39K

R109
1K

dbx Professional Products
8760 South Sandy Parkway

Sandy, Utah 84070

itle

dbx 1066 DUAL COMP/GATE/LIMITER 80-6232

Size Document Number Rev

056232C0.002 C0

B

Date Sheet of

+15

-15

GR METER1

GR METER1

+15V

R176

12.1K 1%

2N4125
Q6

R173

470

R174

1

200 1%

2

3

7
8
9

13
12

R19
39K

C7

2.2M50E1

DYNAMICS CV1

R54

17.4K 1%

GR METER1

GR METER1

Tuesday March 07 2006

TL074

U21D

R83
499 1%

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

RC321155

14

COMP CV1

COMP CV1

GR METER LINK

25

CHANNEL 2

LIMITER LINK

PEAKSTOP+
THRESHOLD

P10
20K402132

MS2 OUT

EAK2 OUT

EAK LINK

EXPANDER
THRESHOLD

50K402138

COMP CV2

COMP CV2

R103

17.4K 1%

R142
499 1%

10
11
12

ST LINK

PEAKSTOP2

SC2 SOURCE

H4

1
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16

RC321155

SW3D
SW440052

45

ST LINK

U27D

9

1011

D54
1N4148

C14

1LLM50E1

EXP2 LEDS

EXP2 LEDS

SW3E
SW440052

13
14
15

R146

47K

13

U26D

12

TL074

78

LM3046M
U27C

C97

R248

47K

R249

470

R250

C95
470PMD1

6

R226
10K

R221

30K

3K

-15V

10

-15

14

R86

47K

9

R230

R245
200 1%

Q8
2N4124

GAIN CV2

U11C

TL074

R233

13.3K 1%

R223
200 1%

10K

8

8

U23C

9

-15

D22
1N4148

D23
1N4148

LM339

14

12

"PLUS" THRESHOLD
TRIM

R227

121K 1%

TL074

5

U29B

6

-15V

R244
200 1%

COMP CV2

COMP CV2

EXP2 LEDS

EXP2 LEDS

1

EXT SC2

INT SC2

LINK CH2 LED DISABLE

LEVEL METER2

R158

12.1K 1%
2N4125

Q3

R50
470

1

2

3

7
8
9

C41
.22J

R127

DYNAMICS CV2

TL074

12

U10D

13

R134

39K

R136
1K

GR METER LINK

dbx Professional Products
8760 South Sandy Parkway

Sandy, Utah 84070

itle

dbx 1066 DUAL COMP/GATE/LIMITER 80-6232

Size Document Number Rev

056232C0.004 C0

B

Tuesday March 07 2006

Date Sheet of

AUTO

SW9C
SW440051

13

D3

1N4148

R1
3K

RELEASE

P17
50K402136

20.0K 1%
C42

2.2M50E1

D39

1N4148

COMPRESSOR
THRESHOLD

+15V

R53

1

412K 1%

2

3

-15V

R45

4.99K 1%

R59

12.1K 1%

10

D45
1N4148

R131
200

50K402138

U5C

9

R52

1K

R46

1.5M

P5

TL074

+15

R196

LM339

2.2M

6

1

U23B

7

R197
1K

C90
.047MA3

-15

COMPRESSOR
RATIO

P6
50K402138

R231
121K 1%

9

10

U29C

TL074

123

3

2

1

8

P15
5K402130

X AND R

RATIO

-15V

P23

1

50K420222

2

3

R232
150K

R228
121K 1%

7

11

R229

121K 1%

R256
280K 1%

R257

20.0K 1%

-15V

8

17.4K 1%

U8C
LM3046M

9

10

D59
1N4148

6

U10C
TL074

9

R55

78

1011

U8D
LM3046M

R48

10.0K 1%

R49

10.0K 1%

6
5

8

TL074

U5B

11

-15V

1.15K 1%

U8A
LM3046M

D2
1N4148

U8E
LM3046M

2

12

+15V

4
5

LM339

AUTO

R26

31

1314

+15V

D18
1N4148

7

3

U23A

SW440051

SW9D

SW440051

TP5
TP500317

R44

2.00K 1%

-15V

R42
280K 1%

D4
1N4148

2

ATTACK

P19

123

50K402 36

SW9A

10
11
12

1

2

R279

47K

1
2
3

523K 1%

R43
280K 1%

TP500317

R234

17.4K 1%

U8B

3 5

LM3046M

-15V

R278
47K

R126

200

R51

R92
523K 1%

+15V

4

2

U5A

3

TL074

Q10
2N4125

R277
10K

10

U23D

11

1

2

C109

2.2M50E1

+15V

3
2

TL074

R135
200 1%

U10A

LM339

4

R133

7.15K 1%

1

D38
1N4148

TP2

4

R47

1.5M

+15V

R159
39K

C43

2.2M50E1

14

R57

200 1%

13
12

10.0K 1%

U5D

R63

+15

-15

14

TL074

R28
523K 1%

+15V

3

R98
560K

2

1

R97

2K

R225

10.0K 1%

+15V

R219

10.0K 1%

+15V

3

2

P14

1

-15V

3
2

-15V

R130

523K 1%

+15V

U29A

R129

2.2M

13
12

C96
470PMD1

6
5

4

TL074

R218

10.0K 1%

R273

12.1K 1%

TL074

U11D

U26B

-15V

D33
1N4148

1

-15V

11

TL074

5
6

14

7

U10B

11

-15V

R128

10.0K 1%

R91

10.0K 1%

R222

10.0K 1%

LM3046M

R224

2.00K 1%

R220

2K

ST LINK

SW440052

TL074

7

1LLM50E1

16
17
18

SW3F

CHANNEL 1

INPUTS

J9
J320206

J10
J320119

3

6

SIDE CHAIN
RETURN

J11
J320119

3

6

WA10
WA280187

1

2

C1 SOURCE

.33LLM50E1

CONTOUR

SW5A
SW440050

3

1
4
5
2

1
4
5
2

C104
1M50E1

12
4

WA11
WA280187

1

2

C55

1
2
3

C5
.047J

.047MA3

LM3046M

R161

13.3K 1%

R162

13.3K 1%

50PJD1

C54

470PMD1

C4

U25E

12

IN1+

IN1+

IN1-

IN1-

C51
50PJD1

C49

EXT SC1
INT SC1

R12

24.9K 1%

R13

17.4K 1%

-15V

-15V

-15V

24.9K 1%

R93
22M

R14

560K

1314

R168

57.6K 1%

R11

R164

13.3K 1%

R163

13.3K 1%

C50
10PJD

P7
50K420222

R259

20.0K 1%

123

4
1
2
8

+15V

20.0K 1%

RMS TRIM

R74
47K

U2
SYM

IN
BIAS
V+

1253

C6
1M50E1

C80
.047MA3

R165

2
3

R169

20.0K 1%

+15V

R73
20

-15V

U7A

GND

OUT
CAP

4
5
6

2
3

C52
10PJD

57.6K 1%

MC33078

4

SW2B
SW440051

R258

20.0K 1%

D72
1N4148

+15V

4

U28A

R264

10.0K 1%

3
7
6
5

V-

R166

1

+4dBu

-10dBV

TL074

R75

1.5M

10
11
12

1

R2

20.0K 1%

+15V

-15V

D73
1N4148

+4dBu

-10dBV

SW2D
SW440051

R171
1K

C102
470PMD1

13
12

C38

.15J

C36
.39J

U24D

R100

TL074

-15V

1K

R260

10.0K 1%

C62
470PMD1

LM3046M

14

1

R101
10M

D29
LEDG702114

D28
LEDG702114

.0047J

6

U1B

5

-15V

WA6
WA280187

1

2

C70
470PMD1

U25A

2

R263

2.00K 1%

TP6
TP500317

2

R102
499 1%

C37

TL074

11

DYNAMICS CV1

SIDE CHAIN
SEND

J6

1

J320119

4
5
2

31

RMS1 OUT

RMS LINK

7

UNITY GAIN
TRIM

OUTPUT
GAIN

P18
50K402138

3

6

C103
470PMD1

9

U28C

10

LM3046M

U25B

35

P21
50K420222

TL074

4

R157

1K

MC33078

2

U9A

3

-15V

R4

12.1K 1%

R170
47K

GAIN CV1

VCA CV LINK

+15V

VCA SYM

1

P1

2

50K420222

+15V

-15V

U13B

U13A

R58

8

4

R3
150K

-15V

-15V

NE5532

R99

4.53K 1%

NE5532

-15V

R151

3.9K

DBXV2

200 1%

C69
1M50E1

7

R7

4.53K 1%

R9

3.16K 1%

R10

3.24K 1%

1

3

R16

60.4 1%

R15

60.4 1%

+15V

3

5

1

U20

6247

1

4

R116
1K

R17

6.04K 1%

6
5

3
2

C1
10PJD

R148

10.0K 1%

8

1
2

TP1
TP500317

+15V

R137
560K

R79

12.1K 1%

C2

50PJD1

+15V

8

6

U9B

5

MC33078

SC1 SOURCE

PEAKSTOP1

D8
1N4148

C71

47ME1

-15V

OPTIONAL
TRANSFORMERS
JENSEN JT-123-dbx
JENSEN JT-11-dbx
BAUER RE-123-dbx
BAUER RE-11-dbx

7

D7
1N4004

2N4124

R132
47K

SW6A
SW440050

SC MON

R138

1K

Q1

R187

1.15K 1%

+15V

-15V

1
2
3

K1A
RLY725142

K1B

SW2C
SW440051

+4dBu

7
8
9

-10dBV

1
2
3

SW2A
SW440051

R188

20.0K 1%

R190

57.6K 1%

IN1+

IN1+

6

4

8
11

13

9

1
1

K1C

16

3

IN1-

IN1-

2
1

SW4A
SW440050

BYPASS

R193
0

TR1

1

2
3

4

OMIT

TR260112

R192 0

dbx Professional Products
8760 South Sandy Parkway

Sandy, Utah 84070

itle

dbx 1066 DUAL COMP/GATE/LIMITER 80-6232

Size Document Number Rev

056232C0.001 C0

B

Date Sheet of

C46
470PMD1

8

7
6

5

Tuesday March 07 2006

R189

28.0K 1%

+15V

6

U7B

5

MC33078

LEVEL METER1

C57
10PJD

8

7

OUTPUTS

J2
J320204

1 2
4

J1

2

J320119

5
4
1

C34
470PMD1

WA1
WA280187

1

3

2

3

6

15

+15V

3

R191

1.5M

2

1

-15V
+15V

1

R177

121K 1%

2

3

-15V

C53
22NPM25E1

I/O METER

1

SW1A

2

SW440050

3

R167

47K

8

R261

13.3K 1%

R262
200 1%

+15V

2
3

TL074

PEAK1 OUT

U1A

D21

1N4148

4

1

10.0K 1%

D32
1N4148

D40
1N4148

R6

R77

2.67K 1%

R8

3.16K 1%

R78

5.76K 1%