DBX-905-eq-sch维修电路原理图.pdf

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1、ECN#DATEECN#DATEDESCRIPTIONREVISIONREVISIONDESCRIPTION |LINK |056174A0.001 |056174A0.002 A0RELEASE TO PRODUCTION4.5.95 Wednesday, October 20, 1999 056174A0.000A0 DBX 905 PCA PARAMETRIC EQ 80-6174 dbx PROFESSIONAL PRODUCTS 8760 South Sandy Parkway Sandy, Utah 84070 B 02 Title SizeDocument NumberRev D

2、ate:Sheet of RadioFans.CN 收音机爱好者资料库 DUAL FREQ HIGH SHELF HIGH (800-20KHZ) WHITE YELLOW RED OVER LED HIGH SHELF SHELFHIGH LOW SHELF HIGH SHELF IN IN TO OUTPUT MODULE HIGHSHELF HIGH Q NOTCH -/+HIGH NOTCH CAL Wednesday, October 20, 1999 056174A0.001A0 DBX 905 PCA PARAMETRIC EQ 80-6174 dbx PROFESSIONAL

3、 PRODUCTS 8760 South Sandy Parkway Sandy, Utah 84070 B 12 Title SizeDocument NumberRev Date:Sheet of AUDIO IN + AUDIO IN - AUDIO OUT + AUDIO OUT - +15V +15V +15V +15V +15V +15V +15V+15V+15V +15V -15V -15V -15V -15V -15V -15V -15V -15V -15V-15V -24V +24V +15V -15V +15V -15V +15V +15V +15V -15V +24V -

4、24V P1 PA15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R1 1K C5 1S63E1 C6 1S63E1 OA1 LF351 4 1 5 6 7 2 3 R80 200K 1% OA10 NE5534D 3 2 6 5 1 8 74 C44 1S63E1 S2F SW440147 14 16 18 R84 10K R90 20.0K 1% R93 20.0K 1% R85 200K 1% OA11B NE5532 5 6 7 8 R89 10K OA11A NE5532 3 2 1 4 R95 20.0K 1% OA12B NE5532 5 6 7 8

5、 C34 1S63E1 R96 10K R99 1M R53 2.10K 1% C50 1S63E1 OA12A NE5532 3 2 1 4 C35 1S63E1 R109 90.9K 1% IC3C MC14053 4 3 5 9 IC3A MC14053 15 2 1 10 OA13B NE5532 5 6 7 8 R104 20.0K 1% R106 20.0K 1% R107 20.0K 1% R67 20.0K 1% R103 20.0K 1% C41 1S63E1 R111 10K OA13A NE5532 3 2 1 4 R6 1K R120 10K R119 10K R118

6、 10K R121 10K CR10 1N4148 CR9 1N4148 CR8 1N4148 CR11 1N4148 OA14A LM339D 5 4 2 3 R115 100K 1% OA14C LM339D 9 8 14 12 R123 10K R124 10K R125 10K R122 10K OA14B LM339D 7 6 1 OA14D LM339D 11 10 13 S2D SW440147 8 10 12 C43 22PK1KD R105 10K CR1 1N4004 C3 10S63E1 CR2 1N4004 C4 10S63E1 C46 .001K1KD1 R91A 2

7、0K402105 13 2 C36 4700PH160A R2 10.0K 1% R77 10.0K 1% R78 10.0K 1%R79 10.0K 1% CR3 LEDR702098 CR5 LEDR702098 C2 100PK1KD R82B 50K402104 46 5 R3 7.50K 1% S1A SW440146 1 2 3 S1D SW440146 10 11 12 S1B SW440146 4 5 6 P2 PA1 1 P3 PA1 1 C37 1S63E1 C39 100PK1KD CR6 LEDR702098 C32 1000PF500F C33 1000PF500F

8、R94 20.0K 1% C42 1S63E1 S2C SW440147 2 4 6 S2E SW440147 13 15 17 S3A SW440147 1 3 5 S2A SW440147 1 3 5 C38 100PK1KD R91C 20K402105 78 IC3B MC14053 14 12 13 11 6 7 816 R91B 20K402105 46 5 R108 22.1K 1% R82A 50K402104 13 2 J2 HCN323160 A 1 B 2 C 3 D 4 E 5 F 6 G 7 H 8 I 9 J 10 C1 100PK1KD R5 7.50K 1% R

9、4 10.0K 1% CR14 1N4148 CR13 1N4148 CR15 1N4148 CR12 1N4148 R127 100K 1% C45 1S63E1 R110 50K420281 1 2 3 R19 1.5K R92 1.54K 1% R32 100K R97 100K R98 100K R101 100K R117 100K R114 10M R113 2.2K R116 536K 1% R81 8.25K 1% R83 1.15K 1% R86 8.25K 1% R100 3.57K 1% R88 1.15K 1% R126 100K C40 1S63E1 EQ OUT E

10、Q OUT MID STAGE MID CLIP SENSE AUDIO IN + AUDIO IN - AUDIO OUT + AUDIO OUT - RadioFans.CN 收音机爱好者资料库 DUAL FREQ SHELF LOW LOW (20 - 500HZ) LOW SHELF LOW SHELF LOW SHELF DUAL FREQ MID (200 - 5KHZ) MID QLOW Q NOTCH -/+ MID NOTCH CAL NOTCH LIN -/+ LOW NOTCH CAL Wednesday, October 20, 1999 056174A0.002A0

11、 DBX 905 PCA PARAMETRIC EQ 80-6174 dbx PROFESSIONAL PRODUCTS 8760 South Sandy Parkway Sandy, Utah 84070 B 22 Title SizeDocument NumberRev Date:Sheet of +15V +15V +15V +15V +15V +15V+15V +15V +15V +15V -15V -15V -15V -15V -15V -15V -15V -15V +15V+15V C18 1S63E1 OA3A NE5532 3 2 1 4 R17 10K R16 10K IC1

12、A MC14053 15 2 1 10 IC1C MC14053 4 3 5 9 R39 22.1K 1% S3F SW440147 14 16 18 R10 232K 1% R11 232K 1% R24 20.0K 1% R25 20.0K 1% C16 1S63E1 R22 20.0K 1% S3C SW440147 2 4 6 R30 2.10K 1% C49 1S63E1 R40 90.9K 1% R33 20.0K 1% R36 20.0K 1% R37 20.0K 1% OA5B NE5532 5 6 7 8 OA5A NE5532 3 2 1 4 R35 10K C14 1S6

13、3E1 R38 10K C48 100PK1KD C15 1S63E1 C9 10S63E1 C12 10S63E1 S3E SW440147 13 15 17 R46 232K 1% R51 232K 1% OA7B NE5532 5 6 7 8 R55 10K OA7A NE5532 3 2 1 4 R50 10K OA6 NE5534D 3 2 6 5 1 8 74 C31 22PK1KD R47 10.0K 1% R56 20.0K 1% R60 20.0K 1% R61 20.0K 1% R62 10K OA8 NE5534D 3 2 6 5 1 8 74 C29 1S63E1 C2

14、6 1S63E1 IC2A MC14053 15 2 1 10 IC2C MC14053 4 3 5 9 R73 22.1K 1% R74 90.9K 1% R68 20.0K 1% R70 20.0K 1% R71 20.0K 1% OA9B NE5532 5 6 7 8 OA9A NE5532 3 2 1 4 C24 100PK1KD R72 10K C27 1S63E1 R34 20.0K 1% R69 10K C22 10S63E1 OA3B NE5532 5 6 7 8 C7 .033JB C8 .033JBC21 3300PH63A OA4B NE5532 5 6 7 8 C10

15、10S63E1 R65 10K R58A 20K402105 13 2 R58C 20K402105 78 R20A 20K402105 13 2 R20C 20K402105 78 IC1B MC14053 14 12 13 11 6 7 816 PCB1 80-6174-A C25 100PK1KD C13 100PK1KD ICS1 DIP16SD ICS2 DIP16SD ICS3 DIP16SD R7 10.0K 1% R9 10.0K 1% R13 10.0K 1% R44 10.0K 1% R45 10.0K 1% R52 10.0K 1% R12 10.0K 1% C11 .1

16、5JB R23 20.0K 1% R48B 50K402104 46 5 R14B 50K402104 46 5 R57 20.0K 1% R43 10.0K 1% S3D SW440147 8 10 12 R14A 50K402104 13 2 C47 22PK1KD C28 1S63E1 R41 50K420281 1 2 3 R20B 20K402105 46 5 OA4A NE5532 3 2 1 4 C20 3300PH63A IC2B MC14053 14 12 13 11 6 7 816 R58B 20K402105 46 5 R75 50K420281 1 2 3 C19 1S

17、63E1 OA2 NE5534D 3 2 6 5 1 8 74 C30 22PK1KD R8 10.0K 1% R54 1.15K 1% R49 1.15K 1% R59 1.54K 1% R15 1.15K 1% R18 1.15K 1% R21 1.54K 1% R26 100K R31 100K R63 100K R64 3.57K 1% R66 100K R29 3.57K 1% R27 100K R28 100K R48A 50K402104 13 2 C17 1S63E1 C23 1S63E1 I1 INS242003 I2 INS242003 I3 INS242003 I4 IN

18、S242003 I5 INS242003 I6 INS242003 MID STAGE EQ OUT MID CLIP SENSE 056174a0 ?&l0?(s0P?(s15H?(s8V?(s0S?&l6D?&l66P?&l3E?&a7L?&a120M?&l61FDOD Software Page 1 DBX 905 PCA PARAMETRIC EQ 80-6174 Revised: April 6, 1995 056174A0.000 Revision: A0 Bill Of Materials April 6, 1995 10:05:25 Quan Reference Part SY

19、MAN Description _ 8 C1,C2,C13,C24,C25,C38, 100PK1KD 62-3040 100 pF Cap 1KV 10% Ceramic Disc C39,C48 6 C3,C4,C9,C10,C12,C22 10S63E1 60-0320 10 uF Cap 63V -20/+80% Alum, Rad T&R 23 C5,C6,C14,C15,C16,C17, 1S63E1 60-0316 1 uF Cap 63V -20/+100% Alum Rad T&R C18,C19,C23,C26,C27,C28, C29,C34,C35,C37,C40,C4

20、1, C42,C44,C45,C49,C50 2 C7,C8 .033JB 56-5007 .033 uF Cap 100V 5% M/Plyes Rad 1 C11 .15JB 56-5011 .15 uF Cap 100V 5% M/Plyes Rad 2 C20,C21 3300PH63A 62-3100 3300 pF Cap 63V 2.5% Polyester 4 C30,C31,C43,C47 22PK1KD 62-3034 22 pF Cap 1KV 10% Ceramic Disc 2 C32,C33 1000PF500F 62-3019 1000 pF Cap 500V 1

21、% Mica Film 1 C36 4700PH160A 62-3118 4700 pF Cap 160V 2.5% Ceramic Disc Axial 1 C46 .001K1KD1 62-3051 .001 uF Cap 1KV 10% Ceramic Disc Ammo T&R 2 CR1,CR2 1N4004 70-0009 1N4004 Rect 1A 400V 3 CR3,CR5,CR6 LEDR702098 70-2098 Red Light Emitting Diode, T1 Case 8 CR8,CR9,CR10,CR11,CR12, 1N4148 70-0002 1N4

22、148 Diode Silicon Switching, 75 Volts PIV CR13,CR14,CR15 6 I1,I2,I3,I4,I5,I6 INS242003 24-2003 Heat shrink Tubing, #22 AWG,Black Teflon 3 IC1,IC2,IC3 MC14053 72-4150 MC14053, Analog Multiplexer/switch 3 ICS1,ICS2,ICS3 DIP16SD 70-3047 16 Pin Dip Socket, DBX 1 J2 HCN323160 32-3160 10 Pin conn. 1 OA1 L

23、F351 72-4318 LF351 Wide Bandwidth JFET Input OP-AMP 4 OA2,OA6,OA8,OA10 NE5534D 72-4310 NE5534 Low Noise OP AMP 8 OA3,OA4,OA5,OA7,OA9,OA11, NE5532 72-4316 5532 Low Noise Dual Op-Amp OA12,OA13 1 OA14 LM339D 72-4306 LM339 Quad Comparator 1 P1 PA15 - 15 Pin Pad Pattern, Not a part 2 P2,P3 PA1 - 1 Pin Pa

24、d Pattern, Not a part 1 PCB1 80-6174-A 2 R1,R6 1K 50-0012 1 KOhm Resistor 5% 1/4 Watt Carbon Film 15 R2,R4,R7,R8,R9,R12,R13, 10.0K 1% 52-0107 10.0 KOhm Resistor 1% 1/4 Watt Metal Film R43,R44,R45,R47,R52,R77, R78,R79 2 R3,R5 7.50K 1% 52-2090 7.50 KOhm Resistor 1% 1/4 Watt Metal Film 4 R10,R11,R46,R5

25、1 232K 1% 52-2214 232 KOhm Resistor 1% 1/4 Watt Metal Film 3 R14,R48,R82 50K402104 40-2104 50 K 10R16mm Rot Pot X2, 71mm Shaft, Horiz 6 R15,R18,R49,R54,R83,R88 1.15K 1% 52-2024 1.15 KOhm Resistor 1% 1/4 Watt Metal Film 23 R16,R17,R35,R38,R50,R55, 10K 50-0020 10 KOhm Resistor 5% 1/4 Watt Carbon Film

26、R62,R65,R69,R72,R84,R89, R96,R105,R111,R118,R119, R120,R121,R122,R123,R124, R125 1 R19 1.5K 50-0204 1.5 KOhm Resistor 5% 1/4 Watt Carbon Film 3 R20,R58,R91 20K402105 40-2105 20 K D 16mm Rot Pot X2, I-84mm,O-71mm Shaft, w/sw, Horiz 3 R21,R59,R92 1.54K 1% 52-0143 1.54 KOhm Resistor 1% 1/4 Watt Metal F

27、ilm 24 R22,R23,R24,R25,R33,R34, 20.0K 1% 52-0091 20.0 KOhm Resistor 1% 1/4 Watt Metal Film R36,R37,R56,R57,R60,R61, R67,R68,R70,R71,R90,R93, R94,R95,R103,R104,R106, 056174a0 R107 12 R26,R27,R28,R31,R32,R63, 100K 50-0036 100 KOhm Resistor 5% 1/4 Watt Carbon Film ?DOD Software Page DBX 905 PCA PARAMET

28、RIC EQ 80-6174 Revised: April 6, 1995 056174A0.000 Revision: A0 Bill Of Materials April 6, 1995 10:05:25 Quan Reference Part SYMAN Description _ R66,R97,R98,R101,R117, R126 3 R29,R64,R100 3.57K 1% 52-0123 3.57 KOhm Resistor 1% 1/4 Watt Metal Film 2 R30,R53 2.10K 1% 52-0184 2.10 KOhm Resistor 1% 1/4

29、Watt Metal Film 3 R39,R73,R108 22.1K 1% 52-0089 22.1 KOhm Resistor 1% 1/4 Watt Metal Film 3 R40,R74,R109 90.9K 1% 52-0066 90.9 KOhm Resistor 1% 1/4 Watt Metal Film 3 R41,R75,R110 50K420281 42-0281 50 K Trim Pot, Horizontal Mount, Carbon, 1T 2 R80,R85 200K 1% 52-0276 200 KOhm Resistor 1% 1/4 Watt Met

30、al Film 2 R81,R86 8.25K 1% 52-0152 8.25 KOhm Resistor 1% 1/4 Watt Metal Film 1 R99 1M 50-0045 1 MOhm Resistor 5% 1/4 Watt Carbon Film 1 R113 2.2K 50-0208 2.2 KOhm Resistor 5% 1/4 Watt Carbon Film 1 R114 10M 50-0060 10M MOhm Resistor 5% 1/4 Watt Carbon Film 2 R115,R127 100K 1% 52-0305 100 KOhm Resist

31、or 1% 1/4 Watt Metal Film 1 R116 536K 1% 52-0235 536 KOhm Resistor 1% 1/4 Watt Metal Film 1 S1 SW440146 44-0146 4PDT Push-Push Switch 2 S2,S3 SW440147 44-0147 6PDT Switch, Soft Touch ECN#DATEECN#DATEDESCRIPTIONREVISIONREVISIONDESCRIPTION |LINK A0RELEASE TO PRODUCTION4.6.95 |056173A1.001 A1ADDED 36-1

32、113, 36-1109, 44-015715885/22/97 Wednesday, October 20, 1999 056173A1.000A1 DBX 905 OUTPUT BOARD dbx PROFESSIONAL PRODUCTS 8760 South Sandy Parkway Sandy, Utah 84070 B 01 Title SizeDocument NumberRev Date:Sheet of (OPTION) GND +IN -IN CD S2L TRIM OFFSET EL RAD EL RADCD NPO EL RAD EL RAD EL RAD Wedne

33、sday, October 20, 1999 056173A1.001A1 DBX 905 OUTPUT BOARD dbx PROFESSIONAL PRODUCTS 8760 South Sandy Parkway Sandy, Utah 84070 B 11 Title SizeDocument NumberRev Date:Sheet of OUT OUT +15V -15V +24V +15V -15V +24V -24V -24V C5 22S63E1 R1 7.5K C1 10S63E1 C2 150PK1KD R4 4.7K R3 1.2M R15 OMIT C3 10S63E

34、1 C11 .001K1KD1 CR1 1N4148 CR2 1N4148 CR8 1N4004 CR3 1N4148 CR4 1N4148 CR5 1N4148 CR6 1N4148 Q1 2N4036 1 2 3 Q2 2N3440 3 2 1 C7 10S63E1 CR7 1N4004 R14 22 R12 22 R13 22 R5 50K420281 1 2 3 I1 INS706008 I2 INS706008 HS1 HS704221 HS2 HS704221 J1B 2 J1C 3 J1D 4 J1E 5 J1G 7 J1F 6 J1H 8 J1I 9 J1J 10 PCB1 8

35、0-6173-A J1A HDR323207 1 C8 10S63E1 C4 10PK1KD C6 22S63E1 OA1 LF351 4 1 5 6 7 2 3 R2 11.0K 1% R8 2.2K R6 2.2K R7 2.2K R9 2.2K R11 5.6K R10 5.6K W1 W361113 12 W2 W361109 12 SC1 SC440157 OUT OUT 056173a1 ?&l0?(s0P?(s15H?(s8V?(s0S?&l6D?&l66P?&l3E?&a7L?&a120M?&l61FDOD Software Page 1 DBX 905 OUTPUT BOAR

36、D Revised: May 22, 1997 056173A1.000 Revision: A1 Bill Of Materials May 22, 1997 14:50:05 Quan Reference Part SYMAN Description _ 4 C1,C3,C7,C8 10S63E1 60-0320 10 uF Cap 63V -20/+100% Alum, Rad 1 C2 150PK1KD 62-3042 150 pF Cap 1KV 10% Ceramic Disc 1 C4 10PK1KD 62-3030 10 pF Cap 1KV 10% Ceramic Disc

37、2 C5,C6 22S63E1 60-0325 22 uF Cap 63V -20/+100% Elect. 1 C11 .001K1KD1 62-3051 .001 uF Cap 1KV 10% Ceramic Disc Ammo T&R 6 CR1,CR2,CR3,CR4,CR5,CR6 1N4148 70-0002 1N4148 Diode Silicon Switching, 75 Volts PIV 2 CR7,CR8 1N4004 70-0009 1N4004 Rect 1A 400V 2 HS1,HS2 HS704221 70-4221 Heatsink, PCB Mount,

38、TO-5, Red 2 I1,I2 INS706008 70-6008 Transipad 1 J1 HDR323207 32-3207 10 Pin Hdr 1 OA1 LF351 72-4318 LF351 Wide Bandwidth JFET Input OP-AMP 1 PCB1 80-6173-A 1 Q1 2N4036 70-1038 2N4036 PNP, Signal Transistor 1 Q2 2N3440 70-1042 2N3440 NPN, Signal Transistor 1 R1 7.5K 50-0017 7.5 KOhm Resistor 5% 1/4 W

39、att Carbon Film 1 R2 11.0K 1% 52-0105 11.0 KOhm Resistor 1% 1/4 Watt Metal Film 1 R3 1.2M 50-0277 1.2 MOhm Resistor 5% 1/4 Watt Carbon Film 1 R4 4.7K 50-0015 4.7 KOhm Resistor 5% 1/4 Watt Carbon Film 1 R5 50K420281 42-0281 50 K Trim Pot, Horizontal Mount, Carbon, 1T 4 R6,R7,R8,R9 2.2K 50-0208 2.2 KO

40、hm Resistor 5% 1/4 Watt Carbon Film 2 R10,R11 5.6K 50-0018 5.6 KOhm Resistor 5% 1/4 Watt Carbon Film 3 R12,R13,R14 22 50-0158 22 Ohm Resistor 5% 1/4 Watt Carbon Film 1 R15 OMIT 00-0000 This part has been omitted 1 SC1 SC440157 44-0157 Pbutton, F-type, Tapered, Blk 1 W1 W361113 36-1113 Wire, B-24, WHT, 4.0 1 W2 W361109 36-1109 Wire, B-24, YEL, 4.0