Ampeg_PB800_Portabass_Preamp_Schematic电路图.pdf

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1、2008 LOUD Technologies Inc. All rights re servedBass Preamp PCB SchematicsPAGE 1 PB800 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 SUR

2、E 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, 50V-10% TOL. 3) VOLTAGES ARE MEASURED WITH 1 MEGOHM OSCILLOSCOPE AND 10 MEGOHM DIGITAL VOLTMETER. SERVICE PERSONNEL. DO NOT P

3、ERFORM 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 PROPRIETARY TO Drawing Size: Drawing Type: Schematic Released: REVDateDESCRIPTION E Tolerance: Plot Date: Plot Time: Fri Fe

4、b 13, 2004 A 12/5/03 1 RLB CONTROL ISSUE 0 2-13-04 INITIAL ISSUE RLB C of Drawing Title: Drawing Number: NONE 2 Ecr(s)/Ecn(s) First Used On: ST. LOUIS MUSIC, INC Date: 12-5-03 11880 Borman Drive, St. Louis, MO 63146 Chgd ByAppvd by F 07S596 2 BASS PREAMP Date 4 3 DCBA 4 3 2 NOTES: THIS SCHEMATIC IS

5、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) UNLESS NOTED, RESISTOR VALUES IN

6、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 Signatures: Checked: Drawn: Sheet Cla

7、ss Code: THE INFORMATION CONTAINED ON THIS DRAWING IS PROPRIETARY TO Drawing Size: Drawing Type: Schematic Released: REVDateDESCRIPTION E Tolerance: Plot Date: Plot Time: Fri Feb 13, 2004 A 12/5/03 1 RLB CONTROL ISSUE 0 2-13-04 INITIAL ISSUE RLB C of Drawing Title: Drawing Number: NONE 2 Ecr(s)/Ecn(

8、s) First Used On: ST. LOUIS MUSIC, INC Date: 12-5-03 11880 Borman Drive, St. Louis, MO 63146 Chgd ByAppvd by F 07S596 2 BASS PREAMP Date 4 3 A 5 4 P2 CHASSIS 140mV p-p E P1 P2 E P2 P2 LOW FREQ B R83 22K R11 68K 140mV p-p R10 22K 10 C52 35V 470K R69 10 35V C7 47K R7 GAIN CW 20K RA P2 GAIN CW P1 20K R

9、A R4 1.5K R5 100 1N4743ARL D22 13V C10 .22 50V C12 .22 50V 33K R72 CHANNEL TWO 220K R80 .01 C49 100V 3.3K R73 4.5V p-p R86 1K .01 100V C13 220K R25 4.5V p-p R81 1M C25 50V .033 R24 1M R13 10K ULTRA LOW P2 R12 15K 1N914 75V PIV D3 .01 C26 100V CW P4 50K L LOW CW 50K L P3 220 pF C50 100V 2.2K R82 HIGH

10、 CW 50K L P10 R41 100K .022 C28 50V HIGH CW 50K L P9 2.2K R77 P1 R78 15K P1 1N914 D6 75V PIV P2 1N914 D16 75V PIV MID CW P6 50K L .015 C42 50V C51 33 pF 200V 10K R40 R37 22K F R90 68K 470K R8 47K R27 R91 1.5K C43 .22 50V 1N914 D13 75V PIV 15K R19 1N914 D1 75V PIV 1N4743ARL D21 13V 2 3 1 U4:A TLO-72

11、2 3 1 U3:A TLO-72 R18 1K 3.3K R16 R93 10K C11 50V .033 1N914 D19 75V PIV 1N914 D15 75V PIV R76 100K 6 5 7 TLO-72 U7:B 1 C39 50V R94 100K .022 C53 50V 220 pF C27 100V C40 100 pF 200V 2 3 1 U6:A TLO-72 2.2K R38 .0047 C41 100V 10K R68 10K R79 CW P8:B 100K RA .015 C21 50V 2 3 1 TLO-72 U5:A C19 33 pF 200

12、V P1 D P1 CHANNEL ONE 5V p-p 5V p-p MID FREQ 56 pF C48 200V R70 680 C23 .022 100V R71 22K CHASSIS 56 pF C5 200V C1 100 pF 200V R17 680 2 3 1 OP275GP U1:A C4 10 35V R55 47K R2 10K R9 10K USE 8 PIN HEADER FOR -01 NOT USED ON DASH 01 ULTRA HIGH 47K R74 O I C SW4:B 150K R75 15K R85 ULTRA HIGH ULTRA LOW

13、50V 1 C15 O I C SW1:B O I C SW3:A P1 1N914 D4 75V PIV R14 150K 6 5 7 U8:B TLO-72 100 pF C47 200V 1N914 D18 75V PIV 1 C14 50V .01 C17 100V 2.2K R26 100 pF C20 200V R42 15K 2 3 1 U7:A TLO-72 1N914 D7 75V PIV 10K R88 R89 22K CW 100K RA P7:B CW 100K RA P7:A R35 22K C24 100 pF 200V C44 10 35V 2 3 1 U2:A

14、OP275GP 1N914 D17 75V PIV C8 .022 100V R1 22K 1N914 75V PIV D2 6 5 7 U1:B OP275GP C45 50V .22 C46 50V 1 6 5 7 TLO-72 U4:B O I C SW4:A 47K R15 6 5 7 U3:B TLO-72 6 5 7 OP275GP U2:B 33K R21 O I C SW1:A O I C SW3:B R87 15K2 3 1 U8:A TLO-72 .0047 C22 100V C29 100 pF 200V R30 100K 6 5 7 U5:B TLO-72 6 5 7

15、TLO-72 U6:B R95 22K CW P8:A 100K RA CW P5 50K L O I C SW2:A 1N4743ARL D24 13V RING_SW TIP_SW SLEEVE TIP RING J1 RING_SW TIP_SW SLEEVE TIP RING J4 RING_SW TIP_SW SLEEVE TIP RING J2 1N4743ARL D23 13V O I C SW2:B RING_SW TIP_SW SLEEVE TIP RING J3 RadioFans.CN 收音机爱 好者资料库 2008 LOUD Technologies Inc. All

16、rights re servedBass Preamp PCB SchematicsPAGE 2 PB800 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 BEF

17、ORE TOUCHING INTERNAL PARTS. 1) CAUTION: SHOCK HAZARD! 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

18、 EXPLAINED IN THE OPERATING INSTRUCTIONS. DCBA 1 FE 1 Signatures: 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 Feb 13, 2004 A 12/5/03 2 RLB CONTR

19、OL ISSUE 0 2-13-04 INITIAL ISSUE RLB C of Drawing Title: Drawing Number: NONE 2 Ecr(s)/Ecn(s) First Used On: ST. LOUIS MUSIC, INC Date: 12-5-03 11880 Borman Drive, St. Louis, MO 63146 Chgd ByAppvd by F 07S596 2 BASS PREAMP Date 4 3 DCBA 4 3 2 NOTES: THIS SCHEMATIC IS PROVIDED FOR USE BY QUALIFIED PE

20、RSONNEL. 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) UNLESS NOTED, RESISTOR VALUES IN OHMS, 1/4W-5% TOL. CAPACITOR VAL

21、UES 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 Signatures: Checked: Drawn: Sheet Class Code: THE INFORMATION CONTAIN

22、ED ON THIS DRAWING IS PROPRIETARY TO Drawing Size: Drawing Type: Schematic Released: REVDateDESCRIPTION E Tolerance: Plot Date: Plot Time: Fri Feb 13, 2004 A 12/5/03 2 RLB CONTROL ISSUE 0 2-13-04 INITIAL ISSUE RLB C of Drawing Title: Drawing Number: NONE 2 Ecr(s)/Ecn(s) First Used On: ST. LOUIS MUSI

23、C, INC Date: 12-5-03 11880 Borman Drive, St. Louis, MO 63146 Chgd ByAppvd by F 07S596 2 BASS PREAMP Date 4 3 5 4 44 4 4 C 5 +15V P1 LIMIT +15V P1 LIMIT GND -15V C35 100 35V R66 680 .047 C32 100V 680 R65 R6 100 .047 C16 100V R3 100 P2 P1 R32 10K P2 4.7K R62 -15V 1K R36 R45 10K C30 2.2 50V 2.2K R46 2.

24、2K R47 2N5210 Q1 MPS-A13 Q3 +15V 1.5K R23 2.2K R44 47K R48 2.2K R59 1 50V C33 220K R58 6 5 7 TLO-72 U10:B 2 3 1 U9:A TLO-72 G S D J175 Q4 A D 10V p-p R64 47K .1 C38 50V .1 C37 50V +15V +15V MUTE 1 2 3 4 J5 R63 4.7K R34 10K CW P11 50K L -15V D5 RED R53 1K D10 YEL 2.2K R43 C31 2.2 50V 1N914 D8 75V PIV

25、 2.2K R51 2.2K R49 -15V 47K R60 1 2 3 4 5 6 7 J40 1 2 3 4 5 6 7 8 9 10 11 J30 POWER P2 +15V C 1.6V p-p PWR IN - LIMIT FX RETURN FX SEND TIP GND .047 C9 100V C3 .1 50V JWOPT1 R31 10K D12 WHITE D20 1N914 75V PIV F C18 100 pF 200V B -14V R33 10K 6 5 7 TLO-72 U9:B +14V 10 35V C2 R29 4.7K R28 470K 2.2K R

26、39 1.5K R22 R54 1K 10 100V C34 R56 100K 100K R57 Q5 2N5210 .1 C36 50V PWR IN + LINE OUT - Q6 2N5087 2.2K R67 D11 1N914 75V PIV D14 1N914 75V PIV 10 35V C6 R61 220K 1N914 D9 75V PIV 2 3 1 TLO-72 U10:A 1K R52 100K R50 CW P12 100K A 4 USE 8 PIN HEADER FOR -01 PWR AMP IN + POST BAL/LINE OUT + PRE BAL OUT - 2N5087 Q2 NOT USED ON DASH 01 PWR AMP IN - FX SEND RING PRE BAL OUT + RadioFans.CN 收音机爱 好者资料库