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REVISION
DESCRIPTION
ECN#
DATE
REVISION
DESCRIPTION
ECN#
DATE
A0
BOARD CHANGED TO REV A
---
12.5.94
A1
CHANGE RIBBON CABLE H1 FROM A 2" CABLE TO A 5" CABLE.
---
3.8.95
A2
CHANGE 44-0027 TO 44-0050
1382
3/31/97
|LINK |053237A2.001
dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 Title DBX 30 SERIES EQS CONTROL BOARD 80-3237 Size B Date: Document Number 053237A2.000 Friday, October 15, 1999 Sheet 0 of 1 Rev A2
INPUT GAIN C17 27PJC3 P2 100K402078 R16 4.64K 1% 2 1 3
V+ 8 6 R15 18.2K 1% 5 U3B 7 LOW CUT ENABLE C8 10NPSE1 C6 10NPSE1 R3 20.0K 1% R14 20.0K 1% MC33078 R9 BYPASS 20.0K 1% LO-CUT SW1B 4 5 6 SW1A 1 2 3 SW2B 4 5 6 C12 .0013HF HI-CUT SW2A 1 2 3 HI CUT ENABLE
EQ ENABLE R4 11.0K 1% SW4B 4 5 6 SW4A 1 2 3 V+ SW440050 8 6 5 U1B 7 R10 20.0K 1% EQ OUT .12KF C5 .12KF C2
P1B 100K402011 5 4 6
C15 27PJC3
SW440050
SW440050 V+ 8 6 7 5 U2B MC33078 C11 .0010HF R8 20.0K 1% C10 10NPSE1 R13 20.0K 1%
R12 10.0K 1%
2 3 U1A 1 MC33078 4 V3 2
C3 10NPSE1
R2 20.0K 1% R6 475K 1%
2 3 U2A 1
R7 7.15K 1%
R11 7.15K 1%
2 3 U3A 1
MC33078 4 V-
MC33078
4
MC33078 R5 475K 1% H1 1 2 3 4 5 6 7 8 9 10
R1 11.0K 1%
V-
V+ V-
P1A 100K402011 1 RANGE
TO OUTPUT
EQ IN
RC2_10_5 TO/FROM MAIN PCB V+ SW3B 4 5 6 SW3A 1 2 3
H1A RCH321221
BOOST/CUT RANGE
+/-6dB (-10dB) +/-12dB (-20dB)
CONTROL P1 P2 SW1 SW2 SW3 SW4
FUNCTION LOWCUT FREQUENCY INPUT GAIN LOW CUT ENABLE HI CUT ENABLE CUT/BOOST RANGE EQ ENABLE
SW440050 V-
SC1 SC340125 V+ V+
SC2 SC340125 V+
SC3 SC340125 V-
SC4 SC340125
V+
V-
C13 10KT VV-
C14 10KT
C18 .047MM3
C4 .047MM3
C9 .047MM3
C16 .047MM3
C1 .047MM3
C7 .047MM3
PCB1 80-3237-A
NOT USED
LAST REF. C18 H1 P2 R16 SC4 SW4 U3
dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 Title dbx 30 SERIES EQS CONTROL BOARD 80-3237 Size B Date: Document Number 053237A2.001 Friday, October 15, 1999 Sheet 1 of 1 Rev A2
053237a2 &l0 (s0P (s15H (s8V (s0S &l6D &l66P &l3E &a7L &a120M &l61FDOD Software Page 1 DBX 30 SERIES EQS CONTROL BOARD 80-3237 Revised: April 1, 1997 053237A2.000 Revision: A2 Bill Of Materials April 1, 1997 13:39:56 Quan Reference Part SYMAN Description _______________________________________________________________________________________________________________ 6 2 4 1 1 2 2 1 1 1 1 1 2 7 2 2 1 1 1 4 4 3 C1,C4,C7,C9,C16,C18 C2,C5 C3,C6,C8,C10 C11 C12 C13,C14 C15,C17 H1 H1A P1 P2 PCB1 R1,R4 R2,R3,R8,R9,R10,R13,R14 R5,R6 R7,R11 R12 R15 R16 SC1,SC2,SC3,SC4 SW1,SW2,SW3,SW4 U1,U2,U3 .047MM3 .12KF 10NPSE1 .0010HF .0013HF 10KT 27PJC3 RC2_10_5 RCH321221 100K402011 100K402078 80-3237-A 11.0K 1% 20.0K 1% 475K 1% 7.15K 1% 10.0K 1% 18.2K 1% 4.64K 1% SC340125 SW440050 MC33078 62-0067 56-2034 60-0051-01 56-0071 56-0072 62-0163 62-0066 32-1204 32-1221 40-2011 40-2078 80-3237-A 52-0105 52-0091 52-0240 52-0113 52-0107 52-0093 52-0118 34-0125 44-0050 72-4248 0.047 uF Cap 50V 20% Axial Monolithic .12 uF Cap 100V 10% Poly Film 10 uF Cap 16V -20/+20% Elect., NP T&R .0010 uF Cap 100V 3% Poly Film .0013 uF Cap 100V 3% Poly Film 10 uF Cap 16V 10% Tantalum T&R 27 pF Cap 50V 20% Axial Monolithic 10 Pin Ribbon Cable, 2mm spacing, 5.00" Length 10 Pin Ribbon Cable, Holder, 2mm spacing 100 K "W" 16mm, Rot Pot x2, Rack Leads 100 K "A" 16mm, Rot Pot 15mm Knurl shaft, horiz mt. dbx 3000 SERIES CONTROL PCB RAW 11.0 KOhm Resistor 1% 1/4 Watt Metal Film 20.0 KOhm Resistor 1% 1/4 Watt Metal Film 475 KOhm Resistor 1% 1/4 Watt Metal Film 7.15 KOhm Resistor 1% 1/4 Watt Metal Film 10.0 KOhm Resistor 1% 1/4 Watt Metal Film 18.2 KOhm Resistor 1% 1/4 Watt Metal Film 4.64 KOhm Resistor 1% 1/4 Watt Metal Film Switch Cap, Black Mini In/Out DPDT Switch (6 Pin) E-Switch Dual OP-AMP
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