Page 1
ECO# DATE ECO# DATEDESCRIPTIONREVISIONREVISION DESCRIPTION
A0
X0
B0
B1 CHANGE 72-4262 TO 72-4062, CHANGE 724261 TO 72-4067 1378 04/04/97
B2 1579 05/21/97CHANGE 50-2442 TO 50-0307, ADDED 44-0157
B3
B4 CHANGE OP AMP PARTS FROM 72-4314 TO 72-4024 326 1-25-99
SCHEMATICS CONVERTED FROM DBX FILES TO ORCAD
PROTOTYPE CONVERTED PCB
RELEASE TO PRODUCTION PCB FILES CONVERTED TO PROTEL
CHANGE TP1 AND TP2 FROM 36-0095 TO 50-0317 AND MOVE TO
THE 12-6172-B3 ASSEMBLY.
8/19/94
9/21/94
196 10/13/98
|LINK
|056172B4.001
dbx PROFESSIONAL PRODUCTS
8760 South Sandy Parkway
Sandy, Utah 84070
Title
DBX 903 COMPRESSOR/LIMITER MODULE 80-6172
Size Document Number Rev
056172B4.000 B4
B
Wednesday, October 20, 1999
Date: Sheet of
0 1
Page 2
P1
PA15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
M1
H1
HDR321182
1S63E1
-24V
+24V
+15V
-15V
RMS_IN+
RMS_IN+
CV_IN
CV_IN
CV_OUT
CV_OUT
TP1
0-R
1
2
3
4
5
6
7
8
9
C19
10S63E1
C20
10S63E1
C17
10S63E1
C18
10S63E1
+15V
C35
+24V
-24V
+15V
-15V
6
5
+24V
-24V
+15V
-15V
U8B
D10
1N4004
D11
1N4004
D8
1N4004
D9
1N4004
8
4558
RMS_IN-
RMS_IN-
JP2
0
R5
10.0K 1%
R6
10.0K 1%
100PK1KD
7
C4
R4
1.00K 1%
R47
50K420279
RMS TRIM
JP1
0
R3
1.00K 1%
100PK1KD
C2
R9
100K 1%
C3
100PK1KD
R10
100K 1%
R12
75.0K 1%
+15V
R49
22M
C22
1M50E1
C1
100PK1KD
R44
10.0K 1%
-15V
R50
768K 1%
AUD_IN-
AUD_INAUD_OUT-
AUD_OUTAUD_OUT+
AUD_OUT+
AUD_IN+
AUD_IN+
R7
10.0K 1%
R8
10.0K 1%
47.5K 1%
R48
1
24.3K 1%
2
3
-15V
R14
75.0K 1%
6
5
C16
1J50FD
R45
20.0 1%
R46
4
1
2
8
R11
7.50K 1%
+15V
8
LF353
U2
SYM
IN
BIAS
V+
1253
+15V
U5B
R13
7.50K 1%
2
3
-15V
7
R37
20K402106
OUTPUT
C21
1M50E1
4
GND
OUT
CAP
1
U5A
LF353
R35
OPTION
50K
GAIN CAL
R53
20K402106
THRESHOLD
3
7
6
5
V-
SC1
SC440157
R16
50K420279
+15V
-15V
THRESH
CAL
R52
50K420279
-15V
R18
4.99K 1%
+15V
C7
C5
10NPM25E
VCA SYM
1
3
-15V
.01MD
1
DBXV1A
R15
13.7K 1%
+15V
1
R17
150K 1%
2
3
R21
49.9 1%
-15V
4.64K 1%
R36
+15V
OPTION
R39
3.3M
24.9K 1%
C15
68PK1KD
4558
2
3
-15V
R40
49.9K 1%
C24
.1MM2
C29
.1MM2
R57
12.4K 1%
R58
12.4K 1%
2
3
-15V
R56
255K 1%
LF353
R54
232K 1%
2
R55
750K
2
C34
22S63E1
+15V +15V +15V +15V +15V
-15V -15V -15V -15V
-15V
R38
374K 1%
2
R51
1.00M 1%
1
2
3
-15V
3
1
+15V
1
3
-15V
-15V
3
5
8
U1
6247
R42
U7A
1
R41
1.00K 1%
4
+15V
U6A
1
D13
4
1N4148
C25
.1MM2
C30
.1MM2
2
3
JP3
0
-15V
C26
.1MM2
C31
.1MM2
C6
.01MD
+15V
U3
-15V
7
415
R59
100K 1%
R30
20.0K 1%
C13
+24V
R24
2.21K 1%
C11
100PK1KD
OFFSET
TRIM
R77
+15V
OPTION
R20
374 1%
6
LF351
R19
49.9 1%
OFFSET
TRIM
R60
50K420279
+15V
R61
1
5.6M
2
C27
.1MM2
C33
.1MM2
3
-15V
R62
10.0K 1%
-15V
C28
.1MM2
C9
.01MD
TP2
0-R
R22
OPTION
50K
6
5
R64B
20K402103
+15V
1
750K
2
R23
3
0
-15V
C10
.001K1KD1
NOTE: R22, R77, R35 & R36 ARE OPTIONAL.
REPLACE R23 WITH 2.61K 1%
FOR OPTIONAL CONFIGURATION.
49.9K 1%
R63
165K 1%
+15V
8
7
4 6
5
U6B
LF353
5K420285
INF CAL
C8
.01MD
1
2
R65
3
INF LED CAL
I1
INS706008
I2
INS706008
PCB1
80-6172-B
U4
LF351
2
3
R66
R163
620
R67
50K420279
-24V
415
7
2.21K 1%
R25
2.21K 1%
C12
1S63E1
6
R27
R64A
20K402103
R26
2.21K 1%
+15V
6
5
+15V
1
3
R73
24.9K 1%
C23
68PK1KD
8
4558
RATIO
R68
22.1K 1%
2
R70
13.0K 1%
R28
5.62K 1%
D1
1N4148
D2
1N4148
R29
5.62K 1%
7
R74
U7B
1.00K 1%
+15V
1 3
2
R71
2.21K 1%
+15V
R69
6.19K 1%
R72
1.00K 1%
dbx PROFESSIONAL PRODUCTS
8760 South Sandy Parkway
Sandy, Utah 84070
Title
Size Document Number Rev
B
Date: Sheet of
22S63E1
+24V
Q1
2N3440
D3
1N4148
D4
1N4148
D5
1N4148
D6
1N4148
dbx 903 COMPRESSOR/LIMITER 80-6172
056172B4.001 B4
3
2
1
R31
33
R32
20.0 1%
33
C14
1
-24V
D7
LEDR702098
U8A
4
22S63E1
3
IN
-15V
R76
1.00K 1%
1
4558
C36
1S63E1
R75
680K
2
Q2
2N4036
2
3
-15V
Wednesday, October 20, 1999
+15V
+24V
R33
+24V
R34
2.21K 1%
J1A
1
HCN323159
2
3
4
5
TO LED BOARD
D14
LEDR702098
S1A
SW440146
1
2
3
S1B
SW440146
4
5
6
S1D
SW440146
10
11
12
S1C
SW440146
7
8
9
J1B
HCN323159
J1C
HCN323159
J1D
HCN323159
J1E
HCN323159
INF+
IN
IN
IN
1 1
Page 3
&l0(s0P(s15H(s8V(s0S&l6D&l66P&l3E&a7L&a120M&l61FDOD Software
056172b4
Page 1
DBX 903 COMPRESSOR/LIMITER MODULE 80-6172 Revised: January 25, 1999
056172B4.000 Revision: B4
Bill Of Materials January 25, 1999 15:42:11
Quan Reference Part SYMAN Description
_______________________________________________________________________________________________________________
5 C1,C2,C3,C4,C11 100PK1KD 62-3040 100 pF Cap 1KV 10% Ceramic Disc
1 C5 10NPM25E 60-1043 10 uF Cap 25V -20/+20% Elect NP
4 C6,C7,C8,C9 .01MD 62-3028 .01 uF Cap 50V 20% Ceramic Disc
1 C10 .001K1KD1 62-3051 .001 uF Cap 1KV 10% Ceramic Disc Ammo T&R
3 C12,C35,C36 1S63E1 60-0316 1 uF Cap 63V -20/+100% Alum Rad T&R
3 C13,C14,C34 22S63E1 60-0325 22 uF Cap 63V -20/+100% Elect.
2 C15,C23 68PK1KD 62-3038 68 pF Cap 1KV 10% Ceramic AXL NPO
1 C16 1J50FD 56-5065 1 uF Cap 50V 5% M/Plyes Rad
4 C17,C18,C19,C20 10S63E1 60-0320 10 uF Cap 63V -20/+100% Alum, Rad
2 C21,C22 1M50E1 60-0044-01 1.0 uF Cap 50V -20/+20% Elect., T&R C&F
9 C24,C25,C26,C27,C28,C29, .1MM2 62-3068 .1 uF Cap 50V 20% Ceramic Z5U
C30,C31,C33
8 D1,D2,D3,D4,D5,D6,D12, 1N4148 70-0002 1N4148 Diode Silicon Switching, 75 Volts PIV
D13
2 D7,D14 LEDR702098 70-2098 Red Light Emitting Diode, T1 Case
4 D8,D9,D10,D11 1N4004 70-0009 1N4004 Rect 1A 400V
1 H1 HDR321182 32-1182 9 Pin Hdr, 5X2, Straight, .23", 0.1" spacing
2 I1,I2 INS706008 70-6008 Transipad
1 J1 HCN323159 32-3159 5 Pin Top entry connector, 0.045 SQ pins
4 JP1,JP2,JP3,R23 0 50-0050 0 Ohm Resistor 5% 1/4 Watt Carbon Film
1 P1 PA15 00-0000 15 Pin Pad Pattern, Not a part
1 PCB1 80-6172-B 80-6172-B dbx 903 MAIN PCB, RAW, REV B
1 Q1 2N3440 70-1042 2N3440 NPN, Signal Transistor
1 Q2 2N4036 70-1038 2N4036 PNP, Signal Transistor
6 R3,R4,R41,R72,R74,R76 1.00K 1% 52-0133 1.00 KOhm Resistor 1% 1/4 Watt Metal Film
6 R5,R6,R7,R8,R44,R62 10.0K 1% 52-0107 10.0 KOhm Resistor 1% 1/4 Watt Metal Film
3 R9,R10,R59 100K 1% 52-0305 100 KOhm Resistor 1% 1/4 Watt Metal Film
2 R11,R13 7.50K 1% 52-2090 7.50 KOhm Resistor 1% 1/4 Watt Metal Film
2 R12,R14 75.0K 1% 52-0009 75.0 KOhm Resistor 1% 1/4 Watt Metal Film
1 R15 13.7K 1% 52-0100 13.7 KOhm Resistor 1% 1/4 Watt Metal Film
5 R16,R47,R52,R60,R67 50K420279 42-0279 50 K Trim Pot, Horizontal Mount, Cermet
1 R17 150K 1% 52-0288 150 KOhm Resistor 1% 1/4 Watt Metal Film
1 R18 4.99K 1% 52-0165 4.99 KOhm Resistor 1% 1/4 Watt Metal Film
2 R19,R21 49.9 1% 52-2006 49.9 Ohm Resistor 1% 1/4 Watt Metal Film
1 R20 374 1% 52-0350 374 Ohm Resistor 1% 1/4 Watt Metal Film
4 R22,R35,R36,R77 OPTION 00-0000 This part is optional
6 R24,R25,R26,R27,R34,R71 2.21K 1% 52-2037 2.21 KOhm Resistor 1% 1/4 Watt Metal Film
2 R28,R29 5.62K 1% 52-0161 5.62 KOhm Resistor 1% 1/4 Watt Metal Film
1 R30 20.0K 1% 52-0091 20.0 KOhm Resistor 1% 1/4 Watt Metal Film
2 R31,R32 33 50-0162 33 Ohm Resistor 5% 1/4 Watt Carbon Film
2 R33,R45 20.0 1% 52-2000 20.0 Ohm Resistor 1% 1/4 Watt Metal Film
2 R37,R53 20K402106 40-2106 20 K "B" 16mm, Rot Pot, 35mm R Shaft
1 R38 374K 1% 52-2226 374 KOhm Resistor 1% 1/4 Watt Metal Film
2 R39,R73 24.9K 1% 52-0039 24.9 KOhm Resistor 1% 1/4 Watt Metal Film
2 R40,R66 49.9K 1% 52-0020 49.9 KOhm Resistor 1% 1/4 Watt Metal Film
1 R42 4.64K 1% 52-0118 4.64 KOhm Resistor 1% 1/4 Watt Metal Film
1 R46 47.5K 1% 52-2167 47.5 KOhm Resistor 1% 1/4 Watt Metal Film
1 R48 24.3K 1% 52-0086 24.3 KOhm Resistor 1% 1/4 Watt Metal Film
1 R49 22M 50-0307 22 MOhm Resistor 5% 1/4 Watt Carbon Film
1 R50 768K 1% 52-4055 768 KOhm Resistor 1% 1/4 Watt Metal Film
Page 4
1 R51 1.00M 1% 52-0705 1.00 MOhm Resistor 1% 1/4 Watt Metal Film
056172b4
1 R54 232K 1% 52-2214 232 KOhm Resistor 1% 1/4 Watt Metal Film
DOD Software Page
DBX 903 COMPRESSOR/LIMITER MODULE 80-6172 Revised: January 25, 1999
056172B4.000 Revision: B4
Bill Of Materials January 25, 1999 15:42:11
Quan Reference Part SYMAN Description
_______________________________________________________________________________________________________________
1 R55 750K 50-0271 750 KOhm Resistor 5% 1/4 Watt Carbon Film
1 R56 255K 1% 52-4054 255 KOhm Resistor 1% 1/4 Watt Metal Film
2 R57,R58 12.4K 1% 52-0102 12.4 KOhm Resistor 1% 1/4 Watt Metal Film
1 R61 5.6M 50-2433 5.6 MOhm Resistor 5% 1/4 Watt Carbon Film
1 R63 165K 1% 52-2200 165 KOhm Resistor 1% 1/4 Watt Metal Film
1 R64 20K402103 40-2103 20 K 16mm, Rot Pot X2, 5010R 30mm R ShAft
1 R65 5K420285 42-0285 5 K Trim Pot, Horizontal Mount, Cermet
1 R68 22.1K 1% 52-0089 22.1 KOhm Resistor 1% 1/4 Watt Metal Film
1 R69 6.19K 1% 52-0136 6.19 KOhm Resistor 1% 1/4 Watt Metal Film
1 R70 13.0K 1% 52-0101 13.0 KOhm Resistor 1% 1/4 Watt Metal Film
1 R75 680K 50-0043 680 KOhm Resistor 5% 1/4 Watt Carbon Film
1 R163 620 50-0194 620 Ohm Resistor 5% 1/4 Watt Carbon Film
1 S1 SW440146 44-0146 4PDT Push-Push Switch
1 SC1 SC440157 44-0157 Pbutton, F-type, Tapered, Blk
2 TP1,TP2 0-R 50-0317 0 Ohm Resistor 5% 1/4 Watt Carbon Film Radial T&R
1 U1 DBXV1A 72-4063 VCA, dbx UPC1252HA2 NEC GRADE "A"
1 U2 1253 72-4067 RMS Detector,dbx UPC1253HA2 NEC
2 U3,U4 LF351 72-4318 LF351 Wide Bandwidth JFET Input OP-AMP
2 U5,U6 LF353 72-4030 LF353 Wide Bandwidth Dual JFET Input Op-Amp
2 U7,U8 4558 72-4024 4558 Wide Bandwidth Dual Op-Amp
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