Ampeg_PB250_Portabass_Power_Amp_Schematic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: Wed Feb 27, 2002 0 2-27-02 1 RLB CONTROL ISSUE C of Drawing Title: Drawing Number: NONE 1 Ecr

4、(s)/Ecn(s) First Used On: ST. LOUIS MUSIC, INC Date: 12-7-00 11880 Borman Drive, St. Louis, MO 63146 Chgd By Appvd by F PB250 07S459-XX 2 BASS AMP Date 4 3 4 4 4 -15 4 4 44 A 4 44 2L 44 +15 -15 INPUT P_IN +15 4 VCC +15 MUTEN A 4 +15 VCC VCC BOOTV VCC -15 -15 LIM_POS 75V PIV 1N914 D11 R102 10K +15 D-

5、GND .47 100V C36 J4 1N4743ARL D9 13V J1 100 R32 22K R33 47 C13 35V .1 C30 50V +15 .001 100V C29 .001 100V C26 6.8K R80 R50 7.5K 4 5 2 U6:A NJM2901 R48 7.5K FC1 JWOPT1 10 11 13 U6:C NJM2901 D-GND FERRITE L7 D-GND R24 .01 5W VCCP 4 FC2 TP2 .1 50V C60 R19 10K 1per R18 10K 1per TEMP 2.2 50V C25 2.7K R39

6、 .22 50V C24 .001 C56 100V 100V .01 C70 1N914 D23 75V PIV C64 100 pF 200V MPS2222 Q2 R92 470 C5 22 +15 C31 47 35V 8 9 14 U6:D NJM2901 .1 C12 50V .001 C14 100V 270K R23 +15 .1 50V C33 .001 C37 100V D-GND .1 50V C53 .1 50V C61 .1 C11 50V .1 50V C10 400V PIV D16 SF16 D18 1N746ARL 3.3V R46 4.7K .001 C42

7、 100V .001 100V C44 4.7 R69 R14 4.7 VCCP 1 250V C54 C68 10 35V 1.8K R61 +15 .001 C46 100V .1 50V C62 .47 100V C22 M2 C4 22 56 pF 200V C74 .1 C59 50V D7 1N5819 40V PIV R16 4.7 R12 4.7 D6 1N5819 40V PIV -15 +15 VCCP .001 100V C3 D45 1N914 75V PIV 5/25/01 8:45 AM C43 56 pF 200V R55 470K D28 1N914 75V P

8、IV R40 1K C2 .1 50V CREF FILTER 1N914 75V PIV D25 C1 470pF 100V R4 47 +15 MPS2222 Q4 C66 .01 100V 47.5K 1per R98 D38 75V PIV 1N914 D-GND .22 250V C73 VCC 1N914 D39 75V PIV 4 12 5 3 REF LM319A TP3 R21 1.5K 1/2W 5per FP 1 C50 50V .47 C20 100V 1 2 3 4 5 6 7 J3 D-GND 3 4 12 1 mH LF1 R41 47 1/2W R100 4.7

9、K FERRITE L9 R77 4.7K .001 100V C9 .001 100V C8 FERRITE L8 R90 1.8K 6800 C19 100V R81 47K D-GND 7.5V 1N4737ATR D26 LIMIT_BASE TP6 R78 100K R84 2.49K 1per C32 47 35V .1 50V C81 2.7K R35 .1 C52 50V R53 1 1/2W 5per FP D15 1N914 75V PIV .001 C38 100V 400V PIV D13 SF16 R86 2.7K 400V PIV D3 SF16 6 5 7 TLO

10、-72 U3:B .001 C40 100V .001 C45 100V 1N5819 40V PIV D4 R65 4.7 4.7 R67 1K R60 C78 .001 100V .001 C47 100V R57 10K R93 1K 3.3K R94 D30 1N914 75V PIV 470 R87 1N4743ARL D31 13V 3.3K R58 .01 100V C63 C55 .001 400V R25 47.5K 1per R26 47.5K 1per R82 47K D8 1N914 75V PIV R29 3.57K 1per R8 5.62K 1per 1 C15

11、250V D22 1N754ARL 6.8V 1 250V C35 C48 .001 100V R72 10K 1per R56 33.2K 1per R52 680 6 5 7 U1:B OP275GP C65 .01 100V 4.7K R96 D10 1N914 75V PIV 9 7 10 8 REF LM319A .22 250V C71 1N914 D40 75V PIV 220 R54 -15 +15 MUTE -15IN +15IN AUDIO- AUDIO+ 4 NOT USED ON -01 P_IN VCC TEMP LIMIT_BASE LIM_OPTO LIM_POS

12、LIM_NEG LIM_NEG +15 D-GND R37 100 R76 22K MPS-A13 Q6 POWER 470 R31 R99 4.7K .47 100V C21 JWOPT2 F1 10 A SB TP7 MUTEN R47 100 LIMIT .001 100V C27 C_GND R75 3.57K 1per R49 3.57K 1per FERRITE L1 L2 FERRITE .001 100V C41 R83 10K D-GND 270K R22 MPS2907A Q3 47K R73 BOOTV 22K R63 R34 10K 1N914 D19 75V PIV

13、R45 100K 3.3K R59 R36 1K 1N914 D21 75V PIV R91 680K R62 2.7K C7 330 pF 100V TP1 R11 33.2K LIM_OPTO R13 15.4K 1per 2 3 1 TLO-72 U7:A R20 10K 1per C6 330 pF 100V 1 C58 50V 1.5K R88 100 R89 C-GND 1 V+ 2 OUT 3 GND LM35DZ R15 4.7 M4 M3 R3 4.7 D27 1N4743ARL 13V 1N4754ARL 39V D34 1N4754ARL D32 39V C76 .001

14、 100V .01 C80 100V 2 3 1 U1:A OP275GP 330 C79 100V R51 27K MODULATOR R44 10K C49 .1 50V R7 33.2K 1per R71 680 1 250V C16 .22 C72 250V 5 uH L15 L12 15 uH C18 470 pF 100V R95 680 470 pF C17 100V D24 1N914 75V PIV R66 47 1N914 D41 75V PIV 2L TP5 1N754ARL 6.8V D36 R68 8.2K R1 6.81K 1per R9 15.4K 1per 75

15、V PIV 1N914 D43 +15 4 12 5 3 REF U4:A LM319A +15 D-GND 2.2M R101 TP4 R43 47 1/2W C23 .0033 100V DB1 KBU1004G R97 33.2K 1/2W 1per FERRITE L11 R42 10K 1per .001 C28 100V R85 1K SF16 400V PIV D2 .1 C34 50V .001 C39 100V R38 15K C51 2.2 50V 47 C69 16V D17 1N914 75V PIV VTL-5C7 OC1 1N914 D20 75V PIV D29

16、1N914 75V PIV R10 1K R17 10K 1per Q1 MPS2222 6 5 7 U7:B TLO-72 D5 1N5819 40V PIV C75 .001 100V M1 1N4754ARL 39V D3539V D33 1N4754ARL C77 .001 100V R27 5.11K 1per R28 5.11K 1per R74 5.62K 1per R70 4.7K D14 1N914 75V PIV D1 1N914 75V PIV MPS2907A Q5 9 7 10 8 REF U4:B LM319A R64 15.4K 1per D-GND R30 3.

17、57K 1per R79 1 1W 5per .22 250V C57 L14 5 uH L13 15 uH 10K R5 75V PIV 1N914 D42 C67 10 1N754ARL 6.8V D37 2.7K R2 D44 1N914 75V PIV 4 3 2 1 J2 2.7K R6 13 ALO 14 ALS 17 BLS 18 BLO 10 AHB 8 HDEL 9 LDEL 5 OUT 6 IN+ 7 IN- 2 HEN 3 DIS 1 BHB 11 AHO 20 BHO 19 BHS 12 AHS HIP4080A U2 CONTROL SWITCHING 6 7 1 U6:B NJM2901 2 3 1 U3:A TLO-72 RadioFans.CN 收音机爱 好者资料库