Ampeg_SVT-5_PRO_Preamp_(07S565)_Schematics电路图.pdf

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1、DCBA 4 3 2 NOTES: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAUTION: TO AVOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS. 1) CAUTION: SHOCK HAZARD!

2、2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER. SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. DCBA 1 FE 1 S

3、ignatures: Checked: Drawn: Sheet Class Code: THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Drawing Size: Drawing Type: Schematic Released: REVDateDESCRIPTION E Tolerance: Plot Date: Plot Time: Fri Jun 13, 2003 0 8/30/01 1 WFB NOISE ISSUES, BOARD TO -02 N01232 1 5/23/03 CONTROL ISSUE C

4、of Drawing Title: Drawing Number: NONE 4 Ecr(s)/Ecn(s) First Used On: ST. LOUIS MUSIC, INC Date: 6/4/01 11880 Borman Drive, St. Louis, MO 63146 Chgd By Appvd by F 07S565 2 PWA-BASS PREAMP A Date 4 3 -15V K B TO SHEET 2 MFS FROM SHEET 3 TO J12A +15V C18A .1 R64A 47K .01 100V C4A +15V R137A 2.2M R7A 4

5、7.5K 1% R12A 100K R23A 470K 2 3 1 IC1A:A TLO-72 +14V R16A 470K .1 C5A TP4 1N914 D15A R26A 100K R47A 22K R41A 100K 1 C15A R39A 220K 2 1 J3A 220 R45A R48A 47K +15V -15V C23A .047 100V OPT2A 33K C24A .0022 100V .047 400V C20A R24A 100K C14A 470 pF 100V D1A RED PEAK +15V CW GAIN 1M LOG P1A R40A 330K R32

6、A 100K C12A 1 -14V +14V R46A 100K 6 5 7 IC3A:B NE5532 C17A .1 100V D11A 1N914 C8A .022 R18A 47K C10A 100 pF 200V 6 5 7 IC1A:B TLO-72 C 68K R35A J CLFXSND TO SHEET 2 TP5 L TP2 -15V A R4A 12 1/2W R38A 47K R6A 100K 6 5 7 IC2A:B TLO-72 1N914 D25A 1% 10K R9A D8A 1N914 1 2 3 J12A 1% 1/2W 3.32K R132A R30A

7、100K R43A 22K R131A 221K 1/2W 1% 75 98 6 J13A:B +15V R1A 12 1/2W D12A 1N914 R60A 100K R2A 221K 1/2W 1% C3A .1 400V R34A 100K 1/2W 1% R28A 220K 220K R59A R49A 1M D26A 1N914 R11A 1M C9A .047 100V R13A 4.7K +15V R31A 10K 1 2 3 J2A +15V TO J20B -15V TO SHEET 2 R42A 100K R50A 330K +15V W1A BLUE WIRE W2A

8、WHT WIRE ON TUBE BREAK-OFF BD FROM J2A OPT1A 1N914 R17A 470K 1N914 D6A R22A 470K O I C SW1A:D Q1A 2N5210 O I C SW1A:C .1 C59A 50V 1N914 D5A C16A .0047 100V TO J3A (ON BASS PRE-AMP B) 2 1 J14A OPT4A 35V 22 2 1 J11A +15V -15V C44A .047 100V R44A 22K VTL-5C3 OC1A SEVEN TO SHEET 2 1N914 D10A 4.7K R37ACW

9、 50K A P3A MID FROM J14A 330K R36A C19A 220 pF 400V R33A 100K R51A 47K 9 10 8 IC4A:C TLO-74 4 TO 5 TC 6 TI SW2A:B 1 TO 3 TI 2 TC SW2A:A C11A 1 C13A .015 10 O 11 C 12 I SW2A:D R29A 1M R14A 4.7K 7 O 8 C 9 I SW2A:C R19A 68K 1N914 D4A TO SHEET 2 FROM SHEET 2 Q7A 2N5210 TO SHEET 2 S D G Q8A J112 4 TO 5 T

10、C 6 TI SW3A:B COMPRESSOR G S D Q2A J175 1 TO 2 TC 3 TI SW3A:A COMPRESSOR R5A 1M 1/2W 1% ON MAIN BD R8A 100K 20 G RED W3A RING_SW TIP_SW SLEEVE TIP RING J1A INPUT R21A 22K 2 3 1 IC2A:A TLO-72 1N914 D7A D9A 1N914 -14V TO TI TC SW1A:A -15 db TO TI TC SW1A:B -15 db G S D Q5A J175 G S D Q6A J175 2 3 1 IC

11、3A:A NE5532 1% 47.5K R133A 24 93 1 J13A:A TP3 C22A .022 2N5210 Q4A TP1 Q3A MPS-A13 R25A 2.7K R27A 100K R15A 1.5K C7A 1 50V 4.7K R20A FROM SHEET 2 CW BASS P2A 250K A CW TREBLE P4A 250K A RadioFans.CN 收音机爱 好者资料库 DCBA 4 3 2 NOTES: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PERSONNEL. CAUTION: TO A

12、VOID RISK OF ELECTRIC SHOCK, REFER SERVICING TO QUALIFIED THIS UNIT CONTAINS HAZARDOUS VOLTAGE. DISCONNECT POWER AND BE SURE POWER SUPPLY IS DISCHARGED BEFORE TOUCHING INTERNAL PARTS. 1) CAUTION: SHOCK HAZARD! 2) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VALUES IN MICROFARADS, 50

13、V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER. SERVICE PERSONNEL. DO NOT PERFORM ANY SERVICING BEYOND THAT EXPLAINED IN THE OPERATING INSTRUCTIONS. DCBA 1 FE 1 Signatures: Checked: Drawn: Sheet Class Code: THE INFORMATION CONTAINED ON THIS DRAWING IS

14、PROPRIETARY TO Drawing Size: Drawing Type: Schematic Released: REVDateDESCRIPTION E Tolerance: Plot Date: Plot Time: Fri Jun 13, 2003 0 8/30/01 2 WFB NOISE ISSUES, BOARD TO -02 N01232 1 5/23/03 CONTROL ISSUE C of Drawing Title: Drawing Number: NONE 4 Ecr(s)/Ecn(s) First Used On: ST. LOUIS MUSIC, INC

15、 Date: 6/4/01 11880 Borman Drive, St. Louis, MO 63146 Chgd By Appvd by F 07S565 2 PWA-BASS PREAMP A Date 4 3 A B K C +15V J +15V OD OUTPUT OD FX SEND DIRTY GND -15V +15V AUDIO GND OD INPUT -15V +15V +15V -22V -15V +15V -15V EIGHT HIGH_F LOW_F TO J15B TO SHEET 3 BIAMP AUDIO GND CLEAN/MIX OUTPUT OCTFS

16、 TO J18B (ON BASS PRE-AMP B) OD FX RET SWITCHING GATE SENSE D22A 1N914 C25A 22 R135A 100K D21A 1N914 R105A 1.8K TP13 1N914 D28A C26A .015 R56A 150K Q14A 2N5210 +15V EIGHT FROM SHEET 1 R58A 10K 8.2K R69A D24A 3.3V 1N746ARL +15V R67A 10K R85A 1.5K R78A 47K +15V R81A 47K TP15 220K R115A R66A 47K R62A 1

17、00K R82A 100K C37A 2.2 R95A 10K C28A 2.2 1N914 D13A R71A 470K TP6 .033 C35A R86A 10K TO SHEET 1 G S D J175 Q18A 13 12 14 TLO-74 IC6A:D C39A 1 C41A .22 R94A 10K G S D Q11A J175 TO J17B PREOUT1 PREOUT2 C31A .01 100V +15V CLEAN OUTPUT OD OUTPUT OCTAVE OUT TIP FROM SHEET 3 D23A 1N914 R72A 100K C21A 2.2

18、R103A 470K 1N914 D30A 6 5 7 TLO-74 IC4A:B BI-LEVEL D3A 220 R55A C60A .22 50V C32A .022 100V G DS Q12A J175 13 12 14 IC4A:D TLO-74 S D G J112 Q10A 9 10 8 IC6A:C TLO-74 R52A 100K .22 C34A +15V 1N914 D19A 13 Q 12 Q 9 DATA 8 SET 10 RESET 11 CLK IC5A:B CD4013 C38A .22 R70A 100K R96A 22K TP14 1 2 3 4 5 6

19、7 8 J7A 47K R84A (ON BASS PRE-AMP B) 1 2 3 4 5 6 7 8 9 10 11 12 J5A L TO SHEET 1 FROM SHEET 1 OCTAVE SECTION FROM SHEET 3 FROM SHEET 3 FROM SHEET 1 DIRTY GND DIRTY GND TO J14B +15V TO SHEET 3 D18A 1N914 R136A 100K TO SHEET 1 (A BAL CW0VTP17 4V8V 0.4V pp0V 0V0.4V pp 0V0V 15V FREQ. CCW; BAL CW FREQ. C

20、W; BAL CCW FREQ. CW; BAL CCW OCTAVE FOOTSW. CLOSED- TP16 TP16 TP17 TP14 TP15 TEST POINT CONDITIONS 1 2 3 4 5 1KHZ 35mVrms INPUT SIGNAL CLEAN GAIN, VOLUMES, MASTER 10 OVERDRIVE GAIN, TONES 5 BUTTONS OUT * TEST POINT ON 07566-XX SCHEMATIC CONDITIONS:WAVEFORM VOLTAGE T.P. DC VOLTAGE AC TEST POINTS 0V0.

21、4V pp -1.8V 0V1.4V pp -1.5V 0V PAD BUTTON IN 2.5V pp TP2 TP3 TP3 TP1 TP1 COMPRESSOR BUTTON IN 0V2.2V pp -14V 0V.3V pp 2.4V pp0V 0V CHAN. SELECT BUTTON IN .7V pp TP9 TP10 TP11 TP8 TP11-0V TP7BOOST BUTTON IN GATE BUTTON IN W/ NO SIGNAL CONDITIONS:WAVEFORM VOLTAGE T.P. DC VOLTAGE AC 0V- -0V 0V- -14V 14V CHAN. SELECT BUTTON IN COMBINE BUTTON IN - TP13 TP13 TP14 TP12 TP12