Ampeg_SVT-4_PRO_Preamp_(07S539)_Schematics电路图.pdf

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1、2007 LOUD Technologies Inc. All rights re servedBass Preamp PCB SchematicsPAGE 1 SVT-4PRO 08/17/04 0 C Plot Time: Drawn: REV Sheet CONTROL ISSUE of31 NONE 08/18/04 Date: Ecr(s)/Ecn(s)Appvd byDate 5 4 A A B B C C D D E E Plot Date: Checked: Released: F F G G 5 4 3 1 2 BASS PREAMP 3 1 2 NOTES: Date Dr

2、awing Number: Class Code: Drawing Type: Schematic 1901 Congressional, St. Louis, MO 63146 WFB ST. LOUIS MUSIC, INC THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Chgd ByDESCRIPTION AND 10 MEGOHM DIGITAL VOLTMETER. 1) CAUTION: SHOCK HAZARD! TOUCHING INTERNAL PARTS. CAUTION: Tolerance: Dr

3、awing Title: First Used On: Drawing Size: Signatures: Mon Aug 23, 2004 07S539 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THIS SCHEMATIC

4、 IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED 08/17/04 C Plot Time: Drawn: REV Sheetof31 NON

5、E 08/18/04 Date: Ecr(s)/Ecn(s)Appvd byDate 5 4 A A B B C C D D E E Plot Date: Checked: Released: F F G G 5 4 3 1 2 BASS PREAMP 3 1 2 NOTES: Date Drawing Number: Class Code: Drawing Type: Schematic 1901 Congressional, St. Louis, MO 63146 WFB ST. LOUIS MUSIC, INC THE INFORMATION CONTAINED ON THIS DRAW

6、ING IS PROPRIETARY TO Chgd ByDESCRIPTION AND 10 MEGOHM DIGITAL VOLTMETER. 1) CAUTION: SHOCK HAZARD! TOUCHING INTERNAL PARTS. CAUTION: Tolerance: Drawing Title: First Used On: Drawing Size: Signatures: Mon Aug 23, 2004 07S539 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 2) UNLESS NOTED, RESIST

7、OR VALUES IN OHMS, 1/4W-5% TOL. AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAI

8、NS HAZARDOUS VOLTAGE. DISCONNECT POWER TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED B+ H- H- V2A V1A B+ H+ +15V MUTE_FS +15V-15V B+ +15V PRE_EQ B+ P P B+ H1 B+ P P P +22V 15K R8 D2 1N914 C1 .01 100V D3 1N914 R13 100K +15V D4 1N914 R52 1.5K R14 22K R57 22K CW 1M LOG P3 BASS C14 .001

9、100V C12 .1 400V R61 68K R27 100 H1 C2 .1 400V R36 68K D31 1N914 R33 22K D5 1N914 C18 100 pF 200V C16 15 pF 200V R192 470 R191 470 C3 .1 100V 4.7K R31 V1B 330 R195 V2B R32 100K 1 800mH 2 300mH 3 100mH 4 CMN L1 C23 .68 250V R65 1M R29 1.5K R28 27K R44 3.3M 220 pF C4 100V 1M R40 .033 C29 100V V3A R64

10、475.0K 1/2W 1% .033 C28 100V 1M R198 R74 22K C21 .022 400V V3B R47 220K 1M R196 R76 1M D24 1N914 1M R54 RED D8 +15V C31 1500 35V R80 30 5W -22V C115 .047 100V R7 68K O C I O C I -15db S1:B R5 68K R2 1M 2 3 1 U1:B NJM2060D G S D Q1 J175 C6 .1 R1 4.7K R11 100K 6 5 7 U1:C NJM2060D R53 1.5K TO TC TI TO

11、TC TI S2:A ULTRA HI 24 9 1 3 J14:A 9-PIN R60 100K 1/2W 1% R58 220K C102 .033 100V R62 120K D21 1N914 D20 1N914 R194 10K R67 220K C8 .1 400V R72 2.7K C20 .022 400V C22 .001 100V 47K R41 9 10 8 U1:D NJM2060D 1M R199 24 9 1 3 J15:A 9-PIN R66 3.3K R48 3.3M C9 470 pF 100V R75 220K 75 9 8 6 J15:B 9-PIN R4

12、6 220K C26 100V .22 R45 3.3M C10 100 pF 200V C7 .001 100V 35V 1500 C30 R77 30 5W O C I O C I ULTRA LOW S2:B -15V H+ P H2 R6 1M 20mV AC rms 0 DCV TP1 D1 1N914 R51 4.7K R50 220K VTL-5C7 OC1 2N5210 Q2 22K R12 D23 1N914 R9 3.3M CW P1 GAIN 50K A 47K R4 R3 100 R37 100K 1/2W 1% 100V .0047 C19 R68 100K 1/2W

13、 1% C17 .1 100V C13 470 pF 100V 75 9 8 6 J14:B 9-PIN 13 12 14 U1:E NJM2060D R30 47K D19 1N914 220K R42 R39 68K R38 475.0K 1/2W 1% D6 1N914 C27 .15 100V PRE_SIG 1K R73 C24 .68 250V H2 R69 470K R43 220K C103 200V 56 pF .0047 C5 100V FOR ASSEMBLY 07-539-05 12mV AC rms -19.2V DC TP8 Q4 MPS-A13 12mV AC r

14、ms 19.2V DC TP7 J2 TUNER OUT J1 INPUT 100K R56 .015 C11 100V 1M R59 C15 .01 100V R10 1.5K Q3 2N5210 TITCTO TOTCTI MUTE S1:A D22 1N914 1M R35 330K R34 24 9 3 1 J13:A 9-PIN CMN CCW 3 4 5 CW S3 FREQ CW 1M LOG P5 TREBLE R63 221K 1/2W 1% R71 100K 1/2W 1% TO TC TI TO TC TI BRIGHT S4:A 866mV AC rms 0 DCV T

15、P3 1M R197 C25 .22 100V R70 68K 162mV AC rms 0 DCV TP6 R49 220K 100V .1 C116 TEST POINT CONDITIONS 1 2 3 4 INPUT SIGNAL 20mV(rms) 1kHz GAIN, MASTER, LINE OUT LEVEL. FREQ 10 COMPRESSION 0 , TONES 5 ALL BUTTONS OUT R55 1.5K 75 9 6 8 J13:B 9-PIN TUNE_OUT 1.27V AC rms 0 DCV TP4 CW P2 1M LOG COMPRESSION

16、CW P4 MIDRANGE 50K L 45.5mV AC rms 95mV DC TP5 500mV AC rms 0 DCV TP2 RadioFans.CN 收音机爱 好者资料库 2007 LOUD Technologies Inc. All rights re servedBass Preamp PCB SchematicsPAGE 2 SVT-4PRO 08/17/04 BEF 3 BEF D Plot Time: Plot Date: REVDate NONE Date: Appvd by NOTES: 6 4 3 2 1 ACD Tolerance: Checked: Rele

17、ased: Drawn: G Sheet WFB of 08/18/04 6 4 3 2 1 5 ACDG 5 TOUCHING INTERNAL PARTS. Class Code: Drawing Number: Drawing Type: Schematic 08:31:10 Drawing Size: Drawing Title: Mon Aug 23, 2004 Signatures: DESCRIPTIONEcr(s)/Ecn(s)Chgd ByDate CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. AND 10 MEGOHM DIGI

18、TAL VOLTMETER. 2 First Used On: 07S539 BASS PREAMP H H 1901 Congressional, St. Louis, MO 63146 THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC CAUTION: 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 1) CAUTION: SHOCK HAZARD! TO AVOID RISK OF ELECTRIC SHOCK, REFE

19、R SERVICING TO QUALIFIED 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. SERVICE PERSON

20、NEL. DO NOT PERFORM ANY SERVICING BEYOND 0 08/17/04 BEF 3 BEF D Plot Time: Plot Date: REVDate NONE Date: Appvd by NOTES: 6 4 3 2 1 ACD Tolerance: Checked: Released: Drawn: G Sheet WFB of 08/18/04 6 4 3 2 1 5 ACDG 5 TOUCHING INTERNAL PARTS. Class Code: Drawing Number: Drawing Type: Schematic 08:31:10

21、 Drawing Size: Drawing Title: Mon Aug 23, 2004 Signatures: DESCRIPTIONEcr(s)/Ecn(s) CONTROL ISSUE Chgd ByDate CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. AND 10 MEGOHM DIGITAL VOLTMETER. 2 First Used On: 07S539 BASS PREAMP H H 1901 Congressional, St. Louis, MO 63146 THE INFORMATION CONTAINED ON TH

22、IS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC CAUTION: 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 1) CAUTION: SHOCK HAZARD! TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS.

23、THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND REF B_OUT +15V1 B A B A R117 10.0K 1% R116 2.49K 1% R115 10K R113 3.57K 1% EQ_FS A_OU

24、T C41 22 16V R120 1M C117 .0022 100V 10K R85 R103 100K 1M R92 C32 10 35V C43 22 16V R87 4.7K R89 4.7K C44 .0033 100V 13 12 14 U2:E TLO-74 R90 4.7K C45 22 16V R95 47K G S D Q6 J175 S D G Q5 J112 C48 10 35V C46 .0033 100V C36 .1 R110 2.2K D32 1N914 D26 1N914 C118 .0033 100V CW BALANCE P9 10K L REF BYP

25、ASS +15V -15V1 3 A -15V1 C50 35V 47 47 35V C49 .1 C51 3 3 11 4 TLO-74 U6:A R137 4.7K 3 3 R138 4.7K 3 +15V1 +15V1 C56 DNP 3 3 3 3 3 13 12 14 U3:E TLO-74 R114 3.57K 1% R105 100K R104 100K C34 10 35V R102 68K R124 47K 6 5 7 U4:C TLO-74 R88 4.7K 6 5 7 U3:C TLO-74 R126 1M R125 3.57K 1% R127 47K G DS J175

26、 Q8 C35 .1 R129 1M R108 100 R100 47K C119 330 pF 100V 13 12 14 U4:E TLO-74 R99 47K 1 2 3 4 5 6 7 8 J16A J11 LOW OUT J12 HIGH OUT +15V1 9 10 8 U6:D TLO-74 R133 1M 1M R131 3 D14 1N914 D12 1N914 C57 DNP 3 1 2 3 4 5 6 7 8 J16B O C I O C I STEREO/MONO S6:B EQ_LED PRE_SIG A_ +15V B_ B -15V1 R121 47K C42 .

27、0033 100V CW 100K L FREQUENCY P8:B CW 100K L P8:A FREQUENCY EQ_SIG G S D Q10 J175 D10 1N914 C38 .1 S D G Q9 J112 D9 1N914 315mV AC rms 0 DCV TP12 R93 4.7K R94 4.7K 315mV AC rms 0 DCV TP13 R82 1M 2 3 1 U3:B TLO-74 R84 4.7K R81 2.2K 315mV AC rms 0 DCV TP15 CW 100K L P8:C FREQUENCY C40 56 pF 200V 2 3 1

28、 U2:B TLO-74 47K R101 B_ R96 47K 6 5 7 U2:C TLO-74 FOR ASSEMBLY 07-539-05 C47 22 16V R128 3.57K 1% CW 100K L FREQUENCY P8:D 2.2K R112 138mV AC rms 0 DCV TP18 R107 100 C37 .0022 100V R98 100K 3 -15V PRE_EQ A_ R140 4.7K 315mV AC rms 0 DCV TP16 R136 4.7K 3 R135 4.7K -15V1 C55 .1 100V R134 10K 303mV AC

29、rms 0 DCV TP10 2 3 1 U6:B TLO-74 C54 .1 100V R132 10K 303mV AC rms 0 DCV TP11 18mV AC rms 0 DCV TP19 ACROSS PINS 2&3 OF J8 R139 DNP J4 FX SEND 1% 15.4K R118 2 3 1 U4:B TLO-74 R123 1M R122 3.57K 1% R119 3.57K 1% 2 3 1 U5:B TLO-72 C39 .1 9 10 8 U3:D TLO-74 R83 4.7K R91 2.2K 315mV AC rms 0 DCV TP14 9 1

30、0 8 U4:D TLO-74 R106 120K CW 2K A P6:A LINE OUT LEVEL S G D J112 Q7 1 3 2CW MASTER 50K AP7:A 305mV AC rms 0 DCV TP9 9 10 8 U2:D TLO-74 4 6 5CW MASTER 50K A P7:B TEST POINT CONDITIONS 1 2 3 4 INPUT SIGNAL 20mV(rms) 1kHz GAIN, MASTER, LINE OUT LEVEL. FREQ 10 COMPRESSION 0 , TONES 5 ALL BUTTONS OUT 100

31、K R111 R130 47K R109 100 100K R97 6 5 7 U5:C TLO-72 1N914 D25 1 2 3 4 5 6 7 8 J17B 1 2 3 4 5 6 7 J23 #2 #8 #7 #9 #4 T1 1:1 #2 #8 #7 #9 #4 T2 1:1 13 12 14 U6:E TLO-74 6 5 7 U6:C TLO-74 LINE OUT BREAK-OFF D13 1N914 D11 1N914 2 1 3 J8 CH A SLVE_SW SLEEVE TIP_SW RING RING_SW TIP J10 CH B 2 1 3 J9 CH B R

32、141 DNP 18mV AC rms 0 DCV TP20 ACROSS PINS 2&3 OF J9 J3 TUNER OUT J6 CH B FX RET 1 2 3 4 5 6 7 8 J17A 1 2 3 4 5 6 7 J22 TO TC TI TO TC TI PRE/POST S6:A SLVE_SW SLEEVE TIP_SW RING RING_SW TIP J7 CH A J5 CH A FX RET TUNE_OUT 138mV AC rms 0 DCV TP17 CW 2K A P6:B LINE OUT LEVEL RadioFans.CN 收音机爱 好者资料库 2

33、007 LOUD Technologies Inc. All rights re servedBass Preamp PCB SchematicsPAGE 3 SVT-4PRO 08/17/04 BEF 3 BEF D Plot Time: Plot Date: REVDate NONE Date: Appvd by NOTES: 6 4 3 2 1 ACD Tolerance: Checked: Released: Drawn: G Sheet WFB of 08/18/04 6 4 3 2 1 5 ACDG 5 TOUCHING INTERNAL PARTS. Class Code: Dr

34、awing Number: Drawing Type: Schematic 08:31:10 Drawing Size: Drawing Title:Mon Aug 23, 2004 Signatures: DESCRIPTIONEcr(s)/Ecn(s)Chgd ByDate CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. AND 10 MEGOHM DIGITAL VOLTMETER. 3 First Used On: 07S539 BASS PREAMP H H 1901 Congressional, St. Louis, MO 63146 T

35、HE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC CAUTION: 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE 1) CAUTION: SHOCK HAZARD! TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. THAT EXPLAINED I

36、N THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND 0 08/17/04 BEF 3 BEF D Plot Time: Plot Date: REVDate NO

37、NE Date: Appvd by NOTES: 6 4 3 2 1 ACD Tolerance: Checked: Released: Drawn: G Sheet WFB of 08/18/04 6 4 3 2 1 5 ACDG 5 TOUCHING INTERNAL PARTS. Class Code: Drawing Number: Drawing Type: Schematic 08:31:11 Drawing Size: Drawing Title:Mon Aug 23, 2004 Signatures: DESCRIPTIONEcr(s)/Ecn(s) CONTROL ISSUE

38、 Chgd ByDate CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. AND 10 MEGOHM DIGITAL VOLTMETER. 3 First Used On: 07S539 BASS PREAMP H H 1901 Congressional, St. Louis, MO 63146 THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO ST. LOUIS MUSIC, INC CAUTION: 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM

39、 OSCILLOSCOPE 1) CAUTION: SHOCK HAZARD! TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEF

40、ORE THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND +15V +15V P +15V2 -15V +15V2 +22V +15V B+ YEL D30 +15V .1 C99 R189 100K C66 .1 -15V PRE_SIG EQ_SIG 2 -15V2 -15V2 35V 47 C70 35V 47 C71 2 R156 22K C73 .1 D16 1N914 47 35V C109 47 35V

41、C108 GRN D27 GRN D18 C68 .1 .1 C111 2 3 1 U9:B TLO-74 .1 C114 4 330 pF C69 100V R161 6.8K -15V .047 100V C79 R167 100K R165 1K 6 5 7 U9:C TLO-74 .47 C78 -22V C83 .01 100V 150K R170 -15V 4 .0047 C85 100V 9 10 8 U10:D TLO-74 R201 1.8K 6 5 7 U10:C TLO-74 11 4 TLO-74 U3:A R176 120K 4 .0022 C89 100V 4 8

42、TLO-72 U5:A 2 3 1 U11:B TLO-74 100V .01 C90 R175 1.8K C92 .0068 100V 11 4 TLO-74 U9:A R181 100 C95 330 pF 100V R185 820 C97 10 35V 4 1.5K R187 D15 1N914 R155 2.2K 1 2 3 4 5 6 7 8 9 10 11 J20 TO POWER AMP 1 2 3 4 5 6 7 8 J19 +15V2 4 +15V 2 R162 1.8K 4 DOWN 20K L P10 33 R166 1.8K 4 C80 .22 R200 150K 1

43、.8K R171 C77 .01 100V C84 .047 100V DOWN 20K L P15 900 R174 100K 4 DOWN 20K L P16 2K DOWN 20K L P17 5K R180 6.8K 1N914 D28 4 1N914 D29 R186 1M A_OUT BYPASS MUTE_FS POWER EQ ACTIVE +15V MPS-A13 Q12 LIMIT 9 I 8 C 7 O 10 O 11 C 12 I LIMIT DEFEAT S5:B B_OUT EQ_FS EQ_LED C110 .1 C74 .1 C72 .1 C67 .1 150K

44、 R160 R158 47K 15K R157 .1 C112 C107 100 450V 1mV AC rms -15V DC TP24 9 10 8 U9:D TLO-74 4 4 .022 C81 C76 .1 1N914 D17 11 4 TLO-74 U2:A 11 4 TLO-74 U4:A 11 4 NJM2060D U1:A 2 3 1 U10:B TLO-74 R172 150K C87 .0033 100V C91 100V 680 pF C86 .033 C82 .1 R169 1.8K 13 12 14 U10:E TLO-74 C88 .015 -15V2 +15V2

45、 11 4 TLO-74 U10:A 11 4 TLO-74 U11:A 4 C93 470 pF 100V R179 1K C94 330 pF 100V 6 5 7 U11:C TLO-74 R183 3.3K 9 10 8 U11:D TLO-74 DOWN P19 LEVEL 20K L R184 2.2K C98 .1 C101 .001 100V R190 1K C100 .1 R188 22K 4 TO 5 TC 6 TI 1 TO 2 TC 3 TI S5:A FX BYPASS R154 10K 2N5210 Q11 1 2 3 4 5 6 7 8 J18 1.8K R163

46、 R159 33K 4 1mV AC rms 15V DC TP23 R168 120K100K R164 C75 2.2 DOWN 20K L P12 150 DOWN 20K L P11 80 143mV AC rms 0 DCV TP21 278V DC TP27 350mV AC rms -24.5V DC TP26 1.8K R173 4 DOWN 20K L P13 300 DOWN 20K L P14 600 R178 120K R177 1.5K 10 35V C96 DOWN 20K L P18 8K R182 10K 207mV AC rms 0 DCV TP22 10 O

47、 11 C 12 I 7 O 8 C 9 I S4:B GRAPHIC EQ 1 2 3 4 5 6 7 J21 FROM POWER AMP FOR ASSEMBLY 07-539-05 375mV AC rms 24.5V DC TP25 13 12 14 U9:E TLO-74 13 12 14 U11:E TLO-74 GRAPHIC EQ BREAK-OFF TEST POINT CONDITIONS 1 2 3 4 INPUT SIGNAL 20mV(rms) 1kHz GAIN, MASTER, LINE OUT LEVEL. FREQ 10 COMPRESSION 0 , TONES 5 ALL BUTTONS OUT RadioFans.CN 收音机爱 好者资料库