DBX-120XP-synt-sch维修电路原理图.pdf

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1、ECN#DATEECN#DATEDESCRIPTIONREVISIONREVISIONDESCRIPTION |LINK A0NEW SCHEMATIC REV A0 RELEASE TO PRODUCTION5.1.95- A1CHANGE RL10, RL8 TO 1.62K 1%3465.9.95 |056181A7.001 |056181A7.002 |056181A7.003 A2DELETED 70-4130 ADDED 70-412313281/23/97 A3CHANGE 44-0026 TO 44-0051, CHANGE 70-1037 TO 70-1004, CHANGE

2、 70-4131 TO 704124 139004/10/97 A4 CHANGE PARTS TO AUTO-INSERTION PARTS56-5054 TO 56-0009 56-3104 TO 56-001456-3110 TO 56-0015 56-3109 TO 56-001256-5047 TO 56-0006 60-0322 TO 60-040260-0318 TO 60-0055 DELETE 10 JUMPER TEST POINTS, 36-0095190412/14/97 A5CHANGE 3 PIN HEADER FROM 32-2116 TO 32-10801169

3、/1/98 A6C801 & C802, USE 60-1026 INSTEAD OF 60-10393713/22/99 A7ADD TEST POINTS TP1-10 WITH 0 OHM RESISTOR 50-0317 MOVE C753 (60-0402) TO THE 05 LEVEL MOVE C704L,C704R,C705L AND C705R (62-0041) TO THE 12 LEVEL 14029/7/00 Wednesday, November 01, 2000 056181A7.000A7 dbx 120XP SUBHARMONIC SYNTHESIZER 8

4、0-6181 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 03 Title SizeDocument NumberRev Date:Sheet of RadioFans.CN 收音机爱好者资料库 CHANNEL 1 INPUT OUTPUT CHANNEL 2 INPUT SUBWOOFER OUTPUT OUTPUT SUBWOOFER LEVEL BYPASS 120 Hz 80 Hz XOVER NORM XOVER NORM 120 Hz 80 Hz BYPASS 120 Hz 80 H

5、z 120 Hz 80 Hz LF BOOST LF BOOST Wednesday, November 01, 2000 056181A7.001A7 dbx 120XP SUBHARMONIC SYNTHESIZER 80-6181 dbx Professional Products 8760 South Sandy Parkway Sandy, Utah 84070 B 13 Title SizeDocument NumberRev Date:Sheet of +15V +15V +15V +15V +15V +15V+15V -15V -15V -15V -15V -15V -15V

6、-15V IC17A TL072D 3 2 4 1 IC17B TL072D 5 6 7 8 IC2A TL072D 3 2 4 1 IC2B TL072D 5 6 7 8 IC3B TL072D 5 6 7 8 R716R 169K 1% S3D SW440131A 10 11 12 14 R716L 169K 1% J702L J323135 3 2 1 J702R J323135 3 2 1 J701L J323135 3 2 1 R714L 84.5K 1% R714R 84.5K 1% R717R 84.5K 1% R717L 84.5K 1% IC4B TL072D 5 6 7 8

7、 R715L 42.2K 1% R715R 42.2K 1% R705L 10.0K 1% R707L 10.0K 1% R708L 10.0K 1% J703 J323135 3 2 1 R726L 2.00K 1% R9 2.00K 1% R726R 2.00K 1% R1 10.0K 1% R2 10.0K 1% R3 10.0K 1% R4 10.0K 1% R5 10.0K 1% R712R 15.0K 1% R712L 15.0K 1% R706R 10.0K 1% R705R 10.0K 1% R707R 10.0K 1% R708R 10.0K 1% R7 20K R727R

8、47 R10 47 R727L 47 S3B SW440131A 4 5 6 R724L 10.0K 1% IC4A TL072D 3 2 4 1 J701R J323135 3 2 1 IC3A TL072D 3 2 4 1 VR710 20K402090 1 2 3 R724R 10.0K 1% C705R 220PJ100D C705L 220PJ100D R710L 7.50K 1% R703L 7.50K 1% R704L 7.50K 1% R703R 7.50K 1% R710R 7.50K 1% R704R 7.50K 1% S2A SW440051 1 2 3 S2B SW44

9、0051 4 5 6 S3A SW440131A 1 2 3 S3C SW440131A 7 8 9 13 S1C SW440131A 7 8 9 13 S1D SW440131A 10 11 12 14 C704L 220PJ100D C704R 220PJ100D IC9A NE5532 3 2 1 4 R6 10.0K 1% IC9B NE5532 5 6 7 8 IC7A NE5532 3 2 1 4 IC7B NE5532 5 6 7 8 IC12B TL072D 5 6 7 8 R730R 22K IC12A TL072D 3 2 4 1 R794L 7.50K 1% R729R

10、10.0K 1% R706L 10.0K 1% R729L 10.0K 1% R730L 22K R794R 7.50K 1% VR705A 20K402091 13 2 VR705B 20K402091 46 5 C706R 33PJ100D C706L 33PJ100D C707L 1J63F C708L 1J63F R8 3.92K 1% R701L 11.0K 1% R702L 11.0K 1% R701R 11.0K 1% R702R 11.0K 1% C707R 1J63F C708R 1J63F R725R 931 1% R725L 931 1% C711R .033J C710

11、R .033J C711L .033J C710L .033J C715R .22J C715L .22J C716L .33J C716R .33J SUBHARMONIC OUT FREQUENCY SYNTHESIS IN RadioFans.CN 收音机爱好者资料库 BYPASS 60 HZ 30HZ 45HZ SUBHARMONIC LEVEL 90HZ Wednesday, November 01, 2000 056181A7.002A7 dbx 120XP SUBHARMONIC SYNTHESIZER 80-6181 dbx Professional Products 876

12、0 South Sandy Parkway Sandy, Utah 84070 B 23 Title SizeDocument NumberRev Date:Sheet of +15V +15V +15V +15V +15V +15V +15V +15V VSSVDD+15V -15V -15V -15V -15V -15V -15V -15V -15V -15V -15V VR711 20K402090 1 2 3 IC15B TL072D 5 6 7 8 IC8A TL072D 3 2 4 1 IC11A TL072D 3 2 4 1 IC14B TL072D 5 6 7 8 IC18B

13、TL072D 5 6 7 8 R7A2 100K R745 100K R747 100K R753 100K R759 100K R760 100K R767 100K R803 100K R7A1 27.4K 1% R737 24.3K 1% IC11B TL072D 5 6 7 8 R751 4.7M R764 4.7M R798 150K 1% R740 110K 1% R741 15.0K 1% IC10A TL072D 3 2 4 1 R755 10.0K 1% R769 10.0K 1% R804 100K VR709 20K402090 1 2 3 R757 3.24K 1% R

14、743 4.87K 1% R750 4.7K IC15A TL072D 3 2 4 1 IC16A TL072D 3 2 4 1 VR708 20K402090 1 2 3 CR707 1N4148 IC18A TL072D 3 2 4 1 R763 4.7K IC14A TL072D 3 2 4 1 R766 15K R752 15K IC16B TL072D 5 6 7 8 R754 10.0K 1% R742 75.0K 1% R738 47.5K 1% IC8B TL072D 5 6 7 8 IC6B TL072D 5 6 7 8 IC10B TL072D 5 6 7 8 S2D SW

15、440051 10 11 12 IC6A TL072D 3 2 4 1 R749 4.7K R762 4.7K R735 OMIT R736 10.0K 1% IC13B CD4013 D 9 Q 13 CLK 11 Q 12 R 10 S 8 CR708 1N4148 IC13A CD4013 D 5 Q 1 CLK 3 Q 2 R 4 S 6 R744 150K 1% R746 100K CR706 1N4148 CR705 1N4148 R756 49.9K 1% R758 100K 1% R765 100K R768 10.0K 1% C726 1J63F C727 1J63F C73

16、2 1J63F C733 1J63F R739 3.92K 1% R761 2.49K 1% R748 2.49K 1% R799 221K 1% R901 22M R902 22M Q708 2N3904 1 2 3 Q709 2N3904 1 2 3 C750 .10J C752 .10J C751 .010J C753 22NPM25E1 C825 .010J C724 .10J C723 .10J C729 .10J C730 .10J C826 .010J C719 .33J C721 .010J C720 .10J C717 .10J C718 .10J TP8 0-R TP10

17、0-R TP9 0-R TP7 0-R FREQUENCY SYNTHESIS IN 30Hz LED METER 45Hz LED METER SUBHARMONIC OUT BYPASS XOVER NORM XOVER BYPASS POWER AUTOMATIC TEST UNIT 30Hz 45Hz TO POWER TRANSFORMER Wednesday, November 01, 2000 056181A7.003A7 dbx 120XP SUBHARMONIC SYNTHESIZER 80-6181 dbx Professional Products 8760 South

18、Sandy Parkway Sandy, Utah 84070 B 33 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 +15V +RAW -15V -15V -15V -15V -15V -15V +15V -RAW -15V +15V +RAW -RAW +15V -15V IC1C LM339D 9 8 14 12 IC1A LM339D 5 4 2 3 IC1B LM339D

19、7 6 1 CR10 LEDG702093 CR11 LEDY702092 CR12 LEDR702094 IC5B LM339D 7 6 1 IC5A LM339D 5 4 2 3 IC5C LM339D 9 8 14 12 CR13 LEDG702093 CR14 LEDY702092 CR15 LEDR702094 R900 10 CR801 1N4004 PCB1 80-6181-A RL9 1.21K 1% RL7 1.21K 1% R104 100K 1% R103 49.9K 1% R102 49.9K 1% IC1D LM339D 11 10 13 R100 10.0K 1%

20、R105 100K 1% IC5D LM339D 11 10 13 R8B9 15.0K 1% R8B7 2.00K 1% R8B6 1.00K 1% R786 1.05K 1% SC1 SC340125 CR802 1N4004 R12 1.21K 1% S1A SW440131A 1 2 3 CR1 LEDG702093 R11 4.7K CR2 LEDB702102 G R S2C SW440051 7 8 9 CR800 BRW02 4 1 3 2 HS1 HS704215 HS2 HS704215 C805 .1MD C807 .1MD C809 .1MD C811 .1MD C81

21、5 .1MD C817 .1MD C819 .1MD C823 .1MD C824 .1MD C820 .1MD C818 .1MD C816 .1MD C812 .1MD C810 .1MD C808 .1MD C806 .1MD C102 .1MD C100 1J63F C101 1J63F C725 1J63F C731 1J63F R8B8 6.98K 1% R101 10.0K 1% RL10 1.62K 1% RL8 1.62K 1% IC19 7815-V I 1 G 2 O 3 C804 100M25E1 C803 100M25E1 J2 HDR321182 1 2 3 4 5

22、 6 7 8 9 IC20 7915-V I 2 G 1 O 3 J1B HDR321080 2 J1A HDR321080 1 J1C HDR321080 3 C802 1000M50E C801 1000M50E TP1 0-R TP2 0-R TP5 0-R TP6 0-R TP3 0-R TP4 0-R 45Hz LED METER 30Hz LED METER 056181a7.pls ?&l0?(s0P?(s15H?(s8V?(s0S?&l6D?&l66P?&l3E?&a7L?&a120M?&l61FDOD Software Page 1 dbx 120XP SUBHARMONIC

23、 SYNTHESIZER 80-6181 Revised: September 7, 2000 056181A7.001 Revision: A7 Bill Of Materials September 13, 2000 9:28:30 Quan Reference Part SYMAN Description _ 12 C100,C101,C707L,C707R, 1J63F 56-5036 1 uF Cap 63V 5% M/Plyes Rad C708L,C708R,C725,C726, C727,C731,C732,C733 17 C102,C805,C806,C807,C808, .

24、1MD 62-3068 .1 uF Cap 50V 20% Ceramic Z5U C809,C810,C811,C812,C815, C816,C817,C818,C819,C820, C823,C824 4 C704L,C704R,C705L,C705R 220PJ100D 62-0041 220 pF Cap 100V 5% Ceramic Disc 2 C706L,C706R 33PJ100D 62-0040 33 pF Cap 100V 5% Ceramic Disc 4 C710L,C710R,C711L,C711R .033J 56-0009 .033 uF Cap 50V 5%

25、 Poly Film 333J ammo 2 C715L,C715R .22J 56-0014 .22 uF Cap 50V 5% Stacked Metal Pet 224J ammo 3 C716L,C716R,C719 .33J 56-0015 .33 uF Cap 50V 5% Stacked Metal Pet 334J ammo 9 C717,C718,C720,C723,C724, .10J 56-0012 .10 uF Cap 50V 5% Stacked Metal Pet 104J ammo C729,C730,C750,C752 4 C721,C751,C825,C826

26、 .010J 56-0006 .010 uF Cap 50V 5% Poly Film 103J ammo 1 C753 22NPM25E1 60-0402 22 uF Cap 25V -20/+20% Elect. NP , T&R 2 C801,C802 1000M50E 60-1026 1000 uF Cap 50V -20/+20% Elect Alum Rad 2 C803,C804 100M25E1 60-0055 100 uF Cap 25V -20/+20% Elect-D T&R 3 CR1,CR10,CR13 LEDG702093 70-2093 Green Light E

27、mitting Diode, T1 1 CR2 LEDB702102 70-2102 Red/Grn Light Emitting Diode, T1 C/B0.1 2 CR11,CR14 LEDY702092 70-2092 Yellow Light Emitting Diode, T1 2 CR12,CR15 LEDR702094 70-2094 Red Light Emitting Diode, T1 4 CR705,CR706,CR707,CR708 1N4148 70-0002 1N4148 Diode Silicon Switching, 75 Volts PIV 1 CR800

28、BRW02 70-0166 Bridge Rectifer 2 CR801,CR802 1N4004 70-0009 1N4004 Rect 1A 400V 2 HS1,HS2 HS704215 70-4215 Heatsink, PCB Mount, Vert., for TO-220 2 IC1,IC5 LM339D 72-4306 LM339 Quad Comparator 13 IC2,IC3,IC4,IC6,IC8,IC10, TL072D 72-4315 TL072 Dual JFet-Input Op-Amp IC11,IC12,IC14,IC15,IC16, IC17,IC18

29、 2 IC7,IC9 NE5532 72-4316 5532 Low Noise Dual Op-Amp 1 IC13 CD4013 72-4324 CD4013 Dual D Flip-Flop 1 IC19 7815-V 70-4123 7815 +15 Volt 1 A Voltage Regulator TO-220 VERT 1 IC20 7915-V 70-4124 7915 -15 Volt 1 A Voltage Regulator TO-220 VERT 1 J1 HDR321080 32-1080 3 Pin Header, 0.1 spacing, 0.025 sq pi

30、ns, Locking 1 J2 HDR321182 32-1182 9 Pin Hdr, 5X2, Straight, .23, 0.1 spacing 5 J701L,J701R,J702L,J702R, J323135 32-3135 Jack, 1/4 Phone, PC Mount, Hor., Non-shorting J703 1 PCB1 80-6181-A 80-6181-A dbx 120XP MAIN PCB, RAW 2 Q708,Q709 2N3904 70-1004 2N3904 NPN, Gen. Purp. Amplifier/Switching Transis

31、tor 25 R1,R2,R3,R4,R5,R6,R100, 10.0K 1% 52-0107 10.0 KOhm Resistor 1% 1/4 Watt Metal Film R101,R705L,R705R,R706L, R706R,R707L,R707R,R708L, R708R,R724L,R724R,R729L, R729R,R736,R754,R755, R768,R769 1 R7 20K 50-0023 20 KOhm Resistor 5% 1/4 Watt Carbon Film 2 R8,R739 3.92K 1% 52-2059 3.92 KOhm Resistor

32、1% 1/4 Watt Metal Film 4 R9,R8B7,R726L,R726R 2.00K 1% 52-0186 2.00 KOhm Resistor 1% 1/4 Watt Metal Film 3 R10,R727L,R727R 47 50-0166 47 Ohm Resistor 5% 1/4 Watt Carbon Film 5 R11,R749,R750,R762,R763 4.7K 50-0015 4.7 KOhm Resistor 5% 1/4 Watt Carbon Film 3 R102,R103,R756 49.9K 1% 52-0020 49.9 KOhm Re

33、sistor 1% 1/4 Watt Metal Film ?DOD Software Page dbx 120XP SUBHARMONIC SYNTHESIZER 80-6181 Revised: September 7, 2000 056181A7.001 Revision: A7 Bill Of Materials September 13, 2000 9:28:30 056181a7.pls Quan Reference Part SYMAN Description _ 3 R104,R105,R758 100K 1% 52-0305 100 KOhm Resistor 1% 1/4

34、Watt Metal Film 4 R701L,R701R,R702L,R702R 11.0K 1% 52-0105 11.0 KOhm Resistor 1% 1/4 Watt Metal Film 8 R703L,R703R,R704L,R704R, 7.50K 1% 52-2090 7.50 KOhm Resistor 1% 1/4 Watt Metal Film R710L,R710R,R794L,R794R 4 R714L,R714R,R717L,R717R 84.5K 1% 52-0005 84.5 KOhm Resistor 1% 1/4 Watt Metal Film 2 R7

35、15L,R715R 42.2K 1% 52-0026 42.2 KOhm Resistor 1% 1/4 Watt Metal Film 2 R716L,R716R 169K 1% 52-0283 169 KOhm Resistor 1% 1/4 Watt Metal Film 2 R725L,R725R 931 1% 52-2018 931 Ohm Resistor 1% 1/4 Watt Metal Film 2 R730L,R730R 22K 50-0025 22 KOhm Resistor 5% 1/4 Watt Carbon Film 1 R735 OMIT 00-0000 This

36、 part has been omitted 1 R737 24.3K 1% 52-0086 24.3 KOhm Resistor 1% 1/4 Watt Metal Film 1 R738 47.5K 1% 52-2167 47.5 KOhm Resistor 1% 1/4 Watt Metal Film 1 R740 110K 1% 52-0301 110 KOhm Resistor 1% 1/4 Watt Metal Film 1 R742 75.0K 1% 52-0009 75.0 KOhm Resistor 1% 1/4 Watt Metal Film 1 R743 4.87K 1%

37、 52-0137 4.87 KOhm Resistor 1% 1/4 Watt Metal Film 2 R744,R798 150K 1% 52-0288 150 KOhm Resistor 1% 1/4 Watt Metal Film 2 R748,R761 2.49K 1% 52-0141 2.49 KOhm Resistor 1% 1/4 Watt Metal Film 2 R751,R764 4.7M 50-0291 4.7 MOhm Resistor 5% 1/4 Watt Carbon Film 2 R752,R766 15K 50-0019 15 KOhm Resistor 5

38、% 1/4 Watt Carbon Film 1 R757 3.24K 1% 52-0124 3.24 KOhm Resistor 1% 1/4 Watt Metal Film 1 R786 1.05K 1% 52-0207 1.05 KOhm Resistor 1% 1/4 Watt Metal Film 1 R799 221K 1% 52-0272 221 KOhm Resistor 1% 1/4 Watt Metal Film 1 R900 10 50-0001 10 Ohm Resistor 5% 1/4 Watt Carbon Film 2 R901,R902 22M 50-0307

39、 22 MOhm Resistor 5% 1/4 Watt Carbon Film 1 R7A1 27.4K 1% 52-0085 27.4 KOhm Resistor 1% 1/4 Watt Metal Film 11 R7A2,R745,R746,R747,R753, 100K 50-0036 100 KOhm Resistor 5% 1/4 Watt Carbon Film R759,R760,R765,R767,R803, R804 1 R8B6 1.00K 1% 52-0133 1.00 KOhm Resistor 1% 1/4 Watt Metal Film 1 R8B8 6.98

40、K 1% 52-2086 6.98 KOhm Resistor 1% 1/4 Watt Metal Film 4 R8B9,R712L,R712R,R741 15.0K 1% 52-0050 15.0 KOhm Resistor 1% 1/4 Watt Metal Film 3 RL7,RL9,R12 1.21K 1% 52-0202 1.21 KOhm Resistor 1% 1/4 Watt Metal Film 2 RL8,RL10 1.62K 1% 52-0131 1.62 KOhm Resistor 1% 1/4 Watt Metal Film 2 S1,S3 SW440131A 4

41、4-0131 4PDT Slide Switch, 2MM Actuator, RA 1 S2 SW440051 44-0051 Mini In/Out 4PDT Switch (12 Pin) E-Switch 1 SC1 SC340125 34-0125 Switch Cap, Black 10 TP1,TP2,TP3,TP4,TP5,TP6, 0-R 50-0317 0 Ohm Resistor 5% 1/4 Watt Carbon Film Radial T&R TP7,TP8,TP9,TP10 1 VR705 20K402091 40-2091 20 K A 12mm Rot Pot X2, 20mm Knurled shaft 4 VR708,VR709,VR710,VR711 20K402090 40-2090 20 K A 12mm Rot Pot, 20mm Knurled shaft