DBX-3231L-eq-sch维修电路原理图.pdf

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DBX-3231L-eq-sch维修电路原理图.pdf

ECN#DATEECN#DATEDESCRIPTIONREVISIONREVISIONDESCRIPTION |LINK |053238A1.001 REVISION HISTORY |053238A1.002 |053238A1.003 |053238A1.004 |053238A1.005 P2VARIOUS SCHEMATIC CHANGES10.24.94 A0RELEASE TO PRODUCTION, BOARD IS REV A11.22.94 A1ADD R53 & R54. CHANGES C64 & C653.15.95254 Monday, October 25, 1999 053238A1.000A1 dbx 3231L CH1 MAIN BOARD 80-3238 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 05 Title SizeDocument NumberRev Date:Sheet of RadioFans.CN 收音机爱好者资料库 GND IN- IN+ GND OUT- OUT+ INPUT OUTPUT TO/FROM CONTROL BOARD INPUT GROUND LIFT SWITCH RELAY DEFEAT BYPASS TRANSFORMER IS INSTALLED) (UNSOLDER PJ3 & PJ4 WHEN INPUT INPUT TRANSFORMER OPTION (UNSOLDER PJ1 & PJ2 TO DEFEAT) (UNSOLDER PJ5 & PJ6 WHEN OUTPUT TRANSFORMER IS INSTALLED) OUTPUT TRANSFORMER OPTION Monday, October 25, 1999 053238A1.001A1 dbx 3231L CH1 MAIN BOARD 80-3238 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 15 Title SizeDocument NumberRev Date:Sheet of IN- IN+ OUT- OUT+ V+ V+ V+ V+V- V- V- V- V- V- V+V- V+ V- V+ U2A MC33078 3 2 1 4 D1 1N4148 Q4 2N5088 D3 1N4001 U5 SSM2142 2 56 1 8 7 3 4 R10 330 U4 SSM2141 1 4 3 2 6 7 5 R18 75K WA1 WA283449 1 2 WA4 WA283449 1 2 L1 EMI1000PF 13 2 R11 220K PJ1 PJ PJ2 PJ D7 1N4148 D9 1N4148 R36 10.0K 1% D8 1N4148 D10 1N4148 R37 10.0K 1% L3 EMI1000PF 13 2 L9 EMI1000PF 13 2 L10 EMI1000PF 13 2 PJ4 PJ PJ3 PJ H12A HDR321063 1 H12C 3 H12D 4 H12E 5 H12B 2 PJ5 PJ PJ6 PJ H13A HDR321063 1 H13B 2 H13C 3 H13D 4 H13E 5 J3 J322114 12 3 4 C11 47S63E C21 47S63E C1 27PJC3 C3 10NPSE1 H1 WT321164 A 1 B 2 C 3 D 4 E 5 F 6 G 7 H 8 I 9 J 10 K1 RLY725143 4 6 8 11 13 9 16 1 R1 49.9K 1% R2 49.9K 1% C25 47SE1 J2 J322115 12 3 4 SW1 SW440131 1 2 3 7 8 912 11 10 6 5 4 13 14 J4 J322110 2 5 4 1 3 6 J1 J322110 2 5 4 1 3 6 B1 BAR320301 1 2 3 4 5 6 RANGE EQ IN EQ OUT IN CLIP IN- IN+ OUT- OUT+ RadioFans.CN 收音机爱好者资料库 20 Hz 25 Hz 100 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz TO/FROM SLIDER BOARD SLIDER CUT SLIDER BOOST Monday, October 25, 1999 053238A1.002A1 dbx 3231L CH1 MAIN BOARD 80-3238 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 25 Title SizeDocument NumberRev Date:Sheet of C1 C2 C3 C4 C5 C6 C7 C8 C7 C1C4 C2C5 C8 C6 C3 V+ V+ V+ V+ V+ V- V- V- V- V- +15 -15 RE3 10.0K 1% RD3 10.0K 1% R17 200K 1% D2 1N4148 Q1 J112 2 1 3 Q2 J112 2 1 3 R7 4.42K 1% U3A MC33078 3 2 1 4 R15 4.42K 1% Q5 J112 2 1 3 Q3 J112 2 1 3 R12 4.42K 1% U6B MC33078 5 6 7 8 RE6 10.0K 1% U9A MC33078 3 2 1 4 RE9 10.0K 1% U6A MC33078 3 2 1 4 RE4 10.0K 1% RD4 10.0K 1% RC4 5.11K 1% RE7 10.0K 1% RE5 10.0K 1% RD5 10.0K 1% U7A MC33078 3 2 1 4 RE1 10.0K 1% RD1 10.0K 1% U1A MC33078 3 2 1 4 U1B MC33078 5 6 7 8 RE2 10.0K 1% RD2 10.0K 1% RA3 121K 1% RC3 16.2K 1% RA1 100K 1% RC1 13.0K 1% RA2 78.7K 1% RC2 10.2K 1% RA5 61.9K 1% RC5 8.06K 1% RA7 48.7K 1% RC7 6.49K 1% RA4 39.2K 1% RA6 30.1K 1% RC6 4.02K 1% RA9 24.3K 1% RC9 3.24K 1% R6 1.00K 1% R8 13.3K 1% R13 1.00K 1% R16 1.00K 1% R14 13.3K 1% RB6 7.15K 1% RB9 5.76K 1% RD9 10.0K 1% RD6 10.0K 1% RD7 10.0K 1% RB7 11.5K 1% RB5 14.3K 1% RB3 28.7K 1% RB1 23.2K 1% RB2 18.2K 1% L4 EMI1000PF 13 2 U3B MC33078 5 6 7 8 R9 13.3K 1% L2 EMI1000PF 13 2 R3 13.3K 1% R5 1.00K 1% RB4 9.09K 1% R4 4.42K 1% U2B MC33078 5 6 7 8 U7B MC33078 5 6 7 8 R41 2.00K 1% Q11 2N6427 13 2 R40 340K 1% D11 1N4148 R38 2.00K 1% R39 2M H2 WT321164 A 1 B 2 C 3 D 4 E 5 F 6 G 7 H 8 I 9 J 10 C24 .047MM3 C47 10NPSE1 H3 WT321164 A 1 B 2 C 3 D 4 E 5 F 6 G 7 H 8 I 9 J 10 CD6 27PJC3 CC7 10NPSE1 CC1 10NPSE1 CD3 27PJC3 CC2 10NPSE1 CD1 27PJC3 CC3 10NPSE1 CD2 27PJC3 CD4 27PJC3 CC6 10NPSE1 CD7 27PJC3 CC5 10NPSE1 CD5 27PJC3 CC4 10NPSE1 CC8 10NPSE1 CD9 27PJC3 C68 .047MM3 C10 27PJC3 C20 27PJC3 CA3 .39H63P CB3 .39H63P CA1 .39H63P CB1 .39H63P CA2 .39H63P CB2 .39H63P CA4 .39H63P CB5 .39H63P CA9 .39H63P CB8 .39H63P CA6 .39H63P CB6 .39H63P CA8 .39H63P CB7 .39H63P CA11 .39H63P CB12 .39H63P FILTERS IN1 RANGE EQ IN EQ OUT IN CLIP C1 C2 C3 C4 C5 C6 C7 C8 C7 C1C4 C2C5 C8 C6 C3 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz Monday, October 25, 1999 053238A1.003A1 dbx 3231L CH1 MAIN BOARD 80-3238 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 35 Title SizeDocument NumberRev Date:Sheet of D3D1 D6 D2 D3 D4 D5 D6 D7 D8 D1 D4 D7 D2 D5 D8 V+ V+ V+ V+ V- V- V- V- RD12 10.0K 1% RE12 10.0K 1% U10A MC33078 3 2 1 4 U11B MC33078 5 6 7 8 RD16 10.0K 1% RE16 10.0K 1% U11A MC33078 3 2 1 4 RE13 10.0K 1% RD13 10.0K 1% RD10 10.0K 1% RE10 10.0K 1% U12A MC33078 3 2 1 4 RD14 10.0K 1% RE14 10.0K 1% U12B MC33078 5 6 7 8 RE17 10.0K 1% RD17 10.0K 1% RD8 10.0K 1% RA8 15.4K 1% RC8 2.05K 1% RD11 10.0K 1% RE11 10.0K 1% U9B MC33078 5 6 7 8 RA11 19.6K 1% RC11 2.61K 1% RA10 121K 1% RC10 16.2K 1% RA14 100K 1% RC14 13.0K 1% RA17 78.7K 1% RC17 10.2K 1% RA13 61.9K 1% RC13 8.06K 1% RA16 48.7K 1% RC16 6.49K 1% RA12 39.2K 1% RC12 5.11K 1% RB11 4.64K 1% RB13 14.3K 1% RB16 11.5K 1% RB12 9.09K 1% RB10 28.7K 1% RB14 23.2K 1% RB17 18.2K 1% U8A MC33078 3 2 1 4 RE8 10.0K 1% RB8 3.65K 1% U8B MC33078 5 6 7 8 CC10 10NPSE1 CD8 27PJC3 CD11 27PJC3 CC12 10NPSE1 CC9 10NPSE1 CD10 27PJC3 CC11 10NPSE1 CD14 27PJC3 CC15 10NPSE1 CD17 27PJC3 CD12 27PJC3 CC14 10NPSE1 CD16 27PJC3 CC16 10NPSE1 CD13 27PJC3 CC13 10NPSE1 H4 WT321164 A 1 B 2 C 3 D 4 E 5 F 6 G 7 H 8 I 9 J 10 CA17 .039H63P CB17 .039H63P CB21 .039H63P CA20 .039H63P CA18 .039H63P CB18 .039H63P CA14 .039H63P CB15 .039H63P CA19 .039H63P CB19 .039H63P CA21 .039H63P CB13 .39H63P CA13 .39H63P CB14 .39H63P CA15 .39H63P CB22 .039H63P FILTERS IN1 D3D1 D6 D2 D3 D4 D5 D6 D7 D8 D1 D4 D7 D2 D5 D8 800 Hz 1000 Hz 1250 Hz 1600 Hz 2000 Hz 2500 Hz 3150 Hz 4000 Hz Monday, October 25, 1999 053238A1.004A1 dbx 3231L CH1 MAIN BOARD 80-3238 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 45 Title SizeDocument NumberRev Date:Sheet of G1 G2 G3 G4 G5 G6 G7 G8 G1 G4 G7 G2 G5 G8 G6 G3 V+ V+ V+ V+ V- V- V- V- RE23 10.0K 1% RD23 10.0K 1% RA23 61.9K 1% RC23 8.06K 1% RD27 10.0K 1% RE27 10.0K 1% RD18 10.0K 1% RE18 10.0K 1% U13A MC33078 3 2 1 4 RD20 10.0K 1% RE20 10.0K 1% U13B MC33078 5 6 7 8 U19A MC33078 3 2 1 4 RD24 10.0K 1% RE24 10.0K 1% U14B MC33078 5 6 7 8 RD21 10.0K 1% RE21 10.0K 1% RE19 10.0K 1% RD19 10.0K 1% U14A MC33078 3 2 1 4 RD15 10.0K 1% RE15 10.0K 1% U10B MC33078 5 6 7 8 RC15 4.02K 1% RA19 24.3K 1% RC19 3.24K 1% RA21 19.6K 1% RC21 2.61K 1% RA18 15.4K 1% RB18 3.65K 1% RC18 2.05K 1% RA20 121K 1% RB20 28.7K 1% RC20 16.2K 1% RA24 100K 1% RC24 13.0K 1% RA27 78.7K 1% RC27 10.2K 1% RB19 5.76K 1% RB21 4.64K 1% RB15 7.15K 1% RB24 23.2K 1% RB23 14.3K 1% RB27 18.2K 1% U18A MC33078 3 2 1 4 RA15 30.1K 1% U19B MC33078 5 6 7 8 CD21 27PJC3 CC19 10NPSE1 CD19 27PJC3 CC18 10NPSE1 CD15 27PJC3 CC17 10NPSE1 CC20 10NPSE1 CD18 27PJC3 CC21 10NPSE1 CD20 27PJC3 CC22 10NPSE1 CD24 27PJC3 CD23 27PJC3 CC24 10NPSE1 CD27 27PJC3 CC23 10NPSE1 H7 WT321164 A 1 B 2 C 3 D 4 E 5 F 6 G 7 H 8 I 9 J 10 R52 0 CA33 .0039H63P CB33 .0039H63P CA37 .0039H63P CB37 .0039H63P CA26 .039H63P CB25 .039H63P CB30 .0039H63P CA29 .0039H63P CA34 .0039H63P CB34 .0039H63P CB31 .039H63P CA30 .039H63P CA25 .039H63P CB24 .039H63P CA23 .039H63P CB23 .039H63P FILTERS IN1 FILTERS IN2 G1 G2 G3 G4 G5 G6 G7 G8 G1 G4 G7 G2 G5 G8 G6 G3 5000 Hz 6300 Hz 8000 Hz 10000 Hz 12500 Hz 16000 Hz 20000 Hz TEST HEADER Monday, October 25, 1999 053238A1.005A1 dbx 3231L CH1 MAIN BOARD 80-3238 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 55 Title SizeDocument NumberRev Date:Sheet of H2 H6H2 H3 H4 H5 H6 H7 H8 H3 H7 H4H8 H5 V+ V+V+ V+ +24V V-V+ V+V+V+V+V+V+V+ V+V+V+V+V+ V+V+ V-V-V-V-V-V-V- V+ V- V+V+ V+V+ V-V-V-V-V-V-V- V-V-V-V- V- V- V- -24V +24V -24V V- V+ V+ V- +15 -15 RD30 10.0K 1% RE30 10.0K 1% RD28 10.0K 1% RE28 10.0K 1% U22B MC33078 5 6 7 8 RD31 10.0K 1% RE31 10.0K 1% RE29 10.0K 1% RD29 10.0K 1% RE25 10.0K 1% RD25 10.0K 1% U17B MC33078 5 6 7 8 RD22 10.0K 1% RE22 10.0K 1% RE26 10.0K 1% RD26 10.0K 1% RB26 11.5K 1% RC26 6.49K 1% RA22 39.2K 1% RB22 9.09K 1% RC22 5.11K 1% RC25 4.02K 1% RA29 24.3K 1% RC29 3.24K 1% RA31 19.6K 1% RC31 2.61K 1% RA28 15.4K 1% RC28 2.05K 1% RA30 12.1K 1% RC30 1.62K 1% RA26 48.7K 1% RA25 30.1K 1% RB30 2.87K 1% U21A MC33078 3 2 1 4 U22A MC33078 3 2 1 4 U18B MC33078 5 6 7 8 U17A MC33078 3 2 1 4 RB25 7.15K 1% RB31 4.64K 1% RB28 3.65K 1% U21B MC33078 5 6 7 8 U24 7815 I 1 G 2 O 3 U23 7915 I 2 G 1 O 3 RB29 5.76K 1% H11 HDR322111 1 2 3 4 5 6 7 8 9 10 S4 DIP8S S5 DIP8S PCB1 80-3238-A BR1 BRDB102 4 1 3 2 C6 10KT C2 10KT H9E HDR321071 5 H9D4 H9C3 H9B2 H9A1 H10A 1 H10B 2 H10C 3 H10D 4 H10E HDR321071 5 SR1 SR280058 SR2 SR280058 HS1 HS704204 I1 INS704209 C31 .047MM3 C61 .047MM3 C63 .047MM3 C4 .047MM3 C5 .047MM3 C12 .047MM3 C13 .047MM3 C32 .047MM3 C36 .047MM3 C50 .047MM3 C51 .047MM3 C19 .047MM3 C18 .047MM3 H8 WT321164 A 1 B 2 C 3 D 4 E 5 F 6 G 7 H 8 I 9 J 10 C15 .047MM3 C26 .047MM3 C27 .047MM3 C30 .047MM3 C37 .047MM3 C52 .047MM3 C60 .047MM3 C7 .047MM3 C8 .047MM3 C14 .047MM3 C16 .047MM3 C17 .047MM3 C22 .047MM3 C23 .047MM3 C28 .047MM3 C33 .047MM3 C34 .047MM3 C35 .047MM3 C38 .047MM3 C39 .047MM3 C54 .047MM3 C55 .047MM3 C56 .047MM3 C62 .047MM3 C29 .047MM3 CC30 10NPSE1 CD31 27PJC3 CC29 10NPSE1 CD28 27PJC3 CC31 10NPSE1 CD30 27PJC3 CC28 10NPSE1 CD29 27PJC3 CD25 27PJC3 CC25 10NPSE1 CD22 27PJC3 CC26 10NPSE1 CC27 10NPSE1 CD26 27PJC3 C66 100S25E1 C67 100S25E1 SR3 SR280059 SR4 SR280059 HS2 HS704203 1 2 3 4 5 CA40 .0039H63P CB40 .0039H63P CA38 .0039H63P CB38 .0039H63P CA41 .0039H63P CB41 .0039H63P CA36 .0039H63P CB36 .0039H63P CA32 .0039H63P CB32 .0039H63P CA35 .0039H63P CB35 .0039H63P CA39 .0039H63P CB39 .0039H63P R53 15 1W R54 15 1W C65 470M35E C64 470M35E FILTERS IN2 H2 H6H2 H3 H4 H5 H6 H7 H8 H3 H7 H4H8 H5 053238a1 ?&l0?(s0P?(s15H?(s8V?(s0S?&l6D?&l66P?&l3E?&a7L?&a120M?&l61FDOD Software Page 1 dbx 3231L CH1 MAIN BOARD 80-3238 Revised: March 15, 1995 053238A1.000 Revision: A1 Bill Of Materials March 15, 1995 9:23:37 Quan Reference Part SYMAN Description _ 1 B1 BAR320301 32-0301 6 Position, PC Mount, Barrier Strip 1 BR1 BRDB102 70-0129 Bridge Rectifer 34 C1,CD1,CD2,CD3,CD4,CD5, 27PJC3 62-0066 27 pF Cap 50V 20% Axial Monolithic CD6,CD7,CD8,CD9,C10,CD10, CD11,CD12,CD13,CD14,CD15, CD16,CD17,CD18,CD19,C20, CD20,CD21,CD22,CD23,CD24, CD25,CD26,CD27,CD28,CD29, CD30,CD31 2 C2,C6 10KT 62-0163 10 uF Cap 16V 10% Tantalum T&R 40 C4,C5,C7,C8,C12,C13,C14, .047MM3 62-0067 0.047 uF Cap 50V 20% Axial Monolithic C15,C16,C17,C18,C19,C22, C23,C24,C26,C27,C28,C29, C30,C31,C32,C33,C34,C35, C36,C37,C38,C39,C50,C51, C52,C54,C55,C56,C60,C61, C62,C63,C68 2 C11,C21 47S63E 60-0301 47 uF Cap 63V -20/+80% Elect 1 C25 47SE1 60-0054-01 47 uF Cap 16V -20/+20% Elect., T&R 2 C64,C65 470M35E 60-0060 470 uF Cap 35V -20/+20% Elect-S 2 C66,C67 100S25E1 60-0055 100 uF Cap 25V -20/+80% Elect-D T&R 20 CA1,CB1,CA2,CB2,CA3,CB3, .39H63P 62-0152 .39 uF Cap 63V 3% Poly. Film CA4,CB5,CA6,CB6,CB7,CA8, CB8,CA9,CA11,CB12,CA13, CB13,CB14,CA15 20 CA14,CB15,CA17,CB17,CA18, .039H63P 62-0151 .039 uF Cap 63V 3% Poly. Film PET CB18,CA19,CB19,CA20,CA21, CB21,CB22,CA23,CB23,CB24, CA25,CB25,CA26,CA30,CB31 22 CA29,CB30,CA32,CB32,CA33, .0039H63P 62-0150 .0039 uF Cap 63V 3% Poly. Film PET CB33,CA34,CB34,CA35,CB35, CA36,CB36,CA37,CB37,CA38, CB38,CA39,CB39,CA40,CB40, CA41,CB41 33 CC1,CC2,C3,CC3,CC4,CC5, 10NPSE1 60-0051-01 10 uF Cap 16V -20/+80% Elect., NP T&R CC6,CC7,CC8,CC9,CC10, CC11,CC12,CC13,CC14,CC15, CC16,CC17,CC18,CC19,CC20, CC21,CC22,CC23,CC24,CC25, CC26,CC27,CC28,CC29,CC30, CC31,C47 7 D1,D2,D7,D8,D9,D10,D11 1N4148 70-0002 1N4148 Silicon Switching Diode, 75 Volts PIV 1 D3 1N4001 70-0001 1N4001 Silicon Rectifier, 1 Amp, 50 Volts PIV 6 H1,H2,H3,H4,H7,H8 WT321164 32-1164 10 Circuit Wire Trap Connector, 2mm Pitch 2 H9,H10 HDR321071 32-1071 5 Pin Header, 0.1 spacing, 0.025 sq pins Lockin 1 H11 HDR322111 32-2111 10 Pin Hdr, 5X2, Straight, .23, 0.1 spacing 2 H12,H13 HDR321063 32-1063 5 Pin Header, 0.1 spacing, 0.025 sq pins, 0.43 pins 1 HS1 HS704204 70-4204 Heatsink, 3 Regulator, Top 1 HS2 HS704203 70-4203 Heatsink, 3 Regulator, U-Shape Base Page 1 053238a1 1 I1 INS704209 70-4209 Insulator, 3 Regulator Heatsink 2 J1,J4 J322110 32-2110 Jack, 1/4 Phone, PCB Mount, Hor., Cliff S2 1 J2 J322115 32-2115 XLR, Ins, Female PC Mount, R/A ?DOD Software Page dbx 3231L CH1 MAIN BOARD 80-3238 Revised: March 15, 1995 053238A1.000 Revision: A1 Bill Of Materials March 15, 1995 9:23:37 Quan Reference Part SYMAN Description _ 1 J3 J322114 32-2114 XLR, Ins, Male PC Mount, R/A 1 K1 RLY725143 72-5143 DPDT Relay Switch 6 L1,L2,L3,L4,L9,L10 EMI1000PF 62-2101 1000 pF Filter, EMI, SUPP, 50V 1 PCB1 80-3238-A 80-3238-A dbx 3000 SERIES EQ MAIN PCB RAW 6 PJ1,PJ2,PJ3,PJ4,PJ5,PJ6 PJ - This is not a part. 4 Q1,Q2,Q3,Q5 J112 70-1012 J112A JFET, National Only 1 Q4 2N5088 70-1007 2N5088 NPN, T&R 1 Q11 2N6427 70-1150 2N6427 Darlington 2 R1,R2 49.9K 1% 52-0020 49.9 KOhm Resistor 1% 1/4 Watt Metal Film 4 R3,R8,R9,R14 13.3K 1% 52-0053 13.3 KOhm Resistor 1% 1/4 Watt Metal Film 4 R4,R7,R12,R15 4.42K 1% 52-0120 4.42 KOhm Resistor 1% 1/4 Watt Metal Film 4 R5,R6,R13,R16 1.00K 1% 52-0133 1.00 KOhm Resistor 1% 1/4 Watt Metal Film 1 R10 330 50-0005 330 Ohm Resistor 5% 1/4 Watt Carbon Film 1 R11 220K 50-0040 220 KOhm Resistor 5% 1/4 Watt Carbon Film 1 R17 200K 1% 52-0276 200 KOhm Resistor 1% 1/4 Watt Metal Film 1 R18 75K 50-0033 75 KOhm Resistor 5% 1/4 Watt Carbon Film 2 R38,R41 2.00K 1% 52-0186 2.00 KOhm Resistor 1% 1/4 Watt Metal Film 1 R39 2M 50-0046 2 MOhm Resistor 5% 1/4 Watt Carbon Film 1 R40 340K 1% 52-0254 340 KOhm Resistor 1% 1/4

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