B&K-ST1200MK2-pwr-sch维修电路原理图.pdf

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1、ST1200 Series IIST1200 Series II SERVICE MANUAL B&K COMPONENTS, LTD. 2100 Old Union Road Buffalo, New York 14227-2725 U.S.A. RadioFans.CN 收音机爱好者资料库 SchematicsSchematics B&K COMPONENTS, LTD. 2100 Old Union Road Buffalo, New York 14227-2725 U.S.A. RadioFans.CN 收音机爱好者资料库 .1 5W R106 .1 5W R105 10K R79

2、 100uF 100V C51 100uF 100V C50 V- V+ D22 1N4002 D21 1N4002 8A SB F2 8A SB F1 R98 1K R99 1K R102 1K R101 1K R100 1K C25 100uF 25V C34 100uF 25V 10uF NP C27 10uF NP C18 1N4148 D15 C41 10000uF 63V C47 10000uF 63V +15V -15V D20 1N4002 D8 1N4002 100uF 25V C40 C45 33nF 100uF 25V C46 C39 33nF R93 3.01K R84

3、 3.01K TIP31CQ4 R82 3.01K Q8TIP32C R94 3.01K D13 1N965B1N965B D14 CON6 CTRL 10K R65 D6 1N4148 1K R75 2N5551 Q3 D9 1N965B 33nF C35 SW1 21 654 3 JUMPER R66 V- V+ R7 10K D1 1N41481N4148 D2 R22 1K R21 24.3K R8 475 Q1 2N5401 R24 24.3K D3 1N4148 D5 1N4148 R29 1K Q2 2N5551 R30 133 1N4148 D4 R28 OPEN BUS OU

4、T CON5 R54 2.26K R55 2.26K R53 33.2K R45 1.5K 50K R52 C W W C C W 1K R58 33.2K R59 V- V+ .12uF C22 C23 100uF 100V C21 100uF 100V .12uF C20 LM3886 U6 M U T E 8 V - 4 G N D 7 V + 1 V + 5 OUT 3 V IN+ 10 V IN- 9 R73 2.26K R74 2.26K R72 33.2K R64 1.5K 50K R71 C W W C C W 1K R76 33.2K R81 V- V+ .12uF C31

5、C32 100uF 100V C29 100uF 100V .12uF C28 LM3886 U8 M U T E 8 V - 4 G N D 7 V + 1 V + 5 OUT 3 V IN+ 10 V IN- 9 CON7 11 9 7 5 3 1 12 10 8 6 4 2 CON4 11 9 7 5 3 1 12 10 8 6 4 2 LF353 U1:B 7 + 5 - 6 R2 100 R5 221 221 R25 100 R20 LF353 U3:B - 6 + 5 7 -15V +15V C13 33nF R23 100 LF353 U3:A 1 8 4 + 3 - 2 R26

6、 221 R32 100K R31 OPENOPEN R13 100K R14 221 R6 LF353 U1:A - 2 + 3 4 8 1 100 R3 33nF C7 +15V -15V 221 R43 100 R39 LF353 U5:B - 6 + 5 7 -15V +15V C19 33nF R40 100 LF353 U5:A 1 8 4 + 3 - 2 R44 221 R47 100K R46 OPEN -15V +15V C26 33nF R50 100 LF353 U7:A 1 8 4 + 3 - 2 R56 221 R61 100K R60 OPEN 221 R57 OP

7、EN R62 100K R63 100 R51 LF353 U7:B - 6 + 5 7 -15V +15V C33 33nF R67 100 LF353 U9:A 1 8 4 + 3 - 2 R69 221 R78 100K R77 OPEN 221 R70 10K R68 LF353 U9:B - 6 + 5 7 10K R18 10K R1 R16 100K R15 OPENOPEN R33 100K R34 100K R49 OPEN R48 TIP32C Q5 D11 1N4148 D12 1N4148 R83 5.62 10K R87 V+ R89 24.3K 2N5551 Q7

8、1N4148 D19 1N4148 D18 133 R96 TIP31C Q6 D16 1N965B D10 1N4002 D7 1N4002 D17 1N4002 2.2K 5W R86 10000uF 63V C48 10000uF 63V C42 33nF C4C9 33nF C17 33nF C24 33nF C30 33nF 40A BR1 + - CON15 3 1 4 2 100K R80 CON3 BUS IN ST1200 CH 60W AMP P/N 10854/10855/10856 7/7/97 R BUS AC SEC IN 4.7K 2W IF V+ 60V* CT

9、RL IN CTRL OUT CTRL ROT LOT L+R ESM 11 5mA OUT 3 OUT 4 L BUSL OUT R OUT L+R OUTL+R BUS R BUS CH 4 CH 3 L BUS R BUS L+R BUS L+R BUS L BUS * DEFEAT ST1200.S01 1/20/95 - UES VOL NO VOL USE VOL NO VOL R OUT L OUT L IN R IN NC R OUT L+R L OUT IN1 IN2 IN5 L BUS L+R BUS R BUS CH 3 CH 4 CH 5 L BUS* +LBUS -L

10、BUS ABCDEFGH 6 5 4 3 2 1 HGFEDCBA 1 2 3 4 5 6 D RevNumber Title Size Date Filename Drawn by ofSheet YEL GRY/WHT RED GRN VIO BLU BRN ORN GRY/BLK WHT BLK 100V 120V 120V 0 043V 27V 43V 27V 10866.S01 RED APPROX. MAX DIMENSIONS OF TOROIDAL TRANSFORMER: THE SECONDARY VOLTAGES LISTED ARE FOR FULL LOAD COND

11、ITIONS. B&K COMPONENTS LTD. ESM 11 - LEAD LENGTH: 9 THE ABOVE PHYSICAL DIMENSIONS ARE MAXIMUM DIMENSIONS. 1/18/95 * OPTIONAL HEIGHT: 2.65 APPROX. MAX MOUNTING DIM. 4.5 300VA MULTI SEC/PRI TOROID 300VA MULTI SEC/PRI B&K PN 10866 7/22/97 ABCD 4 3 2 1 DCBA 1 2 3 4 ofSheet Drawn by RevNumber Title Size

12、A Date Filename Printed Circuit BoardsPrinted Circuit Boards PCBsPCBs B&K COMPONENTS, LTD. 2100 Old Union Road Buffalo, New York 14227-2725 U.S.A. Bill of Materials Bill of Materials BOMsBOMs B&K COMPONENTS, LTD. 2100 Old Union Road Buffalo, New York 14227-2725 U.S.A. File: D:B&K_RobService Booklets

13、BomST1200.BOM 7/11/97, 12:02:44PM Bill of Materials for ST1200 ST1200 MAIN BOARD/POWER SUPPLY/INPUT/VOLUME CONTROL BOARD Comment Pattern Quantity Components - 12HEADER 12PINHEAD 2 CON4,CON7 2PDTPUSH 2PDT.24 1 SW1 4HEADER 4PINHEAD 1 CON15 5 PIN MOLEX5 1 CON12 PCB.SPADE FASTON.25 8 OUT3, OUT4, AC1, AC

14、2, GND3, GND4, NC1, NC2 400V 40A BRIDGE 1 BR1 33nF CAP 16 C4, C7, C13, C17, C19, C20, C22, C24, C26, C28, C30, C31, C33, C35, C39, C45 1N4148 DIODE 18 D1, D2, D3, D4, D5, D6, D7, D8, D10, D11, D12, D15, D17, D18, D19, D20, D21, D22 FUSE 8A SB FUSE 2 F1,F2 LF353 DIP8 5 U1,U3,U5,U7,U9 LM3886 LM3886 2

15、U6,U8 2N5551 TO92 3 Q2,Q3,Q7 TIP31C TO220 2 Q4,Q6 2N5401 TO92 1 Q1 TIP32C TO220 2 Q5,Q8 10uF NP CAP200RP 2 C18,C27 100uF 100V POL CAP200RP 6 C21,C23,C29,C32, C50, C51 100uF 25V POL CAP200RP 4 C25, C34, C40, C46 10000uF 50V POL CAP200RP 4 C41, C42, C47, C48 50K POT VOLSS.2 2 R52, R71 RCA.X1 RCA.X1 2

16、CON3, CON6 RCA.X2 RCA.X2 1 CON5 10K RES 7 R1, R7, R18, R65, R68, R79, R87 1K RES 10 R22, R29, R58, R75, R76, R98, R99, R100, R101, R102 .1 5W RES 2 R105, R106 OPEN RES 10 R13, R15, R28, R31, R33, R46, R48, R60, R62, R77 100K RES 10 R14, R16, R32, R34, R47, R49, R61, R63, R78, R80 100 RES 9 R2, R3, R

17、20, R23, R39, R40, R50, R51, R67 24.3K RES 3 R21, R24, R89 221 RES 10 R5, R6, R25, R26, R43, R44, R56, R57, R69, R70 133 RES 2 R30, R96 1.5K RES 2 R45, R64 33.2K RES 4 R53, R59, R72, R81 Page: 1 File: D:B&K_RobService BookletsBom10854C.BOM 7/11/97, 11:58:20AM 133 RES 2 R30, R96 1.5K RES 5 R4, R27, R

18、45, R64, R85 2.26K RES 10 R11, R12, R37, R38, R54, R55, R73, R74, R91, R92 JUMPER RES 1 R66 475 RES 1 R8 3.01K RES 4 R82, R84, R93, R94 5.62 RES 1 R83 2.2K 5W R5W.R 1 R86 33.2K RES400 10 R10, R19, R36, R42, R53, R59, R72, R81, R90, R97 LF353 DIP8 5 U1, U3, U5, U7, U9 1N965B D0-35 4 D9, D13, D14, D16 Page: 2