BKComponents-Reference200x-pwr-sm维修电路原理图.pdf

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1、Reference 200.7-200.5Reference 200.7-200.5 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 6FKHPDWLFV6FKHPDWLFV 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 123456 A B C D 6543

2、21 D C B A Title NumberRevisionSize B Date:14-Aug-2002Sheet of File:C:B&k_DataBoard_Revs10842revB10842b00.DDBDrawn By: C15 .12uF + C13 100 uF 100V C3 120pF + C14 10uF 25V + C1 10uF/25V + C2 100uF/25V C16 .12uF + C12 100uF 100V + C4 100uF 25V F1 6A SLOW V+ R11 2.26K D1 1N4751 R13 33.2K R8 221 Q7 2N50

3、87 M Q8 2N5087 M Q6 2N5210 Q5 2N5210 R6 133 R7 221 Q9 2N5416 R26 47.5 P1 500 Q2 2N5210 M Q1 2N5210 M R1 1.5K 1 2 3 4 5 CON1 R3 221 R4 221 R36 10K R14 JUMPER Q3 2N5210 R12 221 Q11 2N5210 Q4 2N5210 Q10 2N5210 Q12 2N3440 R15 47.5 P2 500 R10 JUMPER R5 2.26K R39 2.26K C2 R2 33.2K R42 47.5K R40 221K F2 6A

4、 SLOW V- R31 47.5K R933.2K C11OPEN R24 1.5K R44 33.2K QN5 2SK1058 R27 1.5K QP5 2SJ162 RP10 .47 5W RP5 .47 5W D4 1N4148 R21 OPEN R20 33.2K D2 1N965B R19 10K Q13 2N5401 D3 1N4751 R43 1K THX Style with Control I/O and 1M Ohm Mod 1 of 1 ESM B R25 475 QN4 2SK1058 RP4 .47 5W QN3 2SK1058 RP3 .47 5W QN2 2SK

5、1058 RP2 .47 5W QN1 2SK1058 RP1 .47 5W R23 1.5K R22 1.5K R17 1.5K R16 1.5K QP4 2SJ162 RP9 .47 5W QP3 2SJ162 RP8 .47 5W QP2 2SJ162 RP7 .47 5W QP1 2SJ162 RP6 .47 5W R28 1.5K R29 1.5K R30 1.5K R35 1.5K C9 .12uF + C7 100 uF 100V C8 .12uF + C6 100uF 100V R38 JUMPER R37 JUMPER W1 VN W2 V+b W3 OUT1 W4 V+a

6、W5 MUTE W6 JN Model # # Mosfets Power Output ST1400 2 Pair/Ch 105 W 8 ohms ST1400M 4 Pair MONO 150 W 8 ohms ST2020 3 Pair/Ch 150 W 8 ohms ST3030 3 Pair/Ch 200 W 8 ohms EX4420 5 Pair/Ch 200 W 8 ohms EX4420M 10 Pair MONO 250 W 8 ohms EX4430 4 Pair/Ch 200 W 8 ohms REF7450 5 Pair/Ch 200 W 8 ohms REF7420

7、B 5 Pair/Ch 800 W 8 ohms REF7420M 10 Pair MONO 1000W 8 ohms W7 VP W8 V-b W9 V-a W10 JP W11 OUT2 W12 OUT3 W13 GND1 W14 GND2 J1 WIRE R18 1M C10 .12uF 10842 B / SBS 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:14-Aug-2002Sheet of File:C:B&k_DataRef_725012816b0012816b00.ddbDrawn By: R1

8、133 BR1BR2BR3 CON1AC_IN CON2AC_IN V-V+V+V- + C1 27KuF 80V + C2 27KuF 80V + C3 27KuF 80V + C4 27KuF 80V R2 33.2K D1 1N4148 D2 1N4148 D3 1N4148 D4 1N4148 D5 1N4148 R3 10K Q1 2N5551 Q3TIP32C Q4 TIP31CR6 5.62 R7 2.2K 5W D7 1N965B D8 1N4002 D9 1N4002 D10 1N4002 R4 10K R8 .1 5W R9 .1 5W R10 .1 5W R11 .1 5

9、W R12 .1 5W R13 .1 5W + C5 27KuF 80V + C6 27KuF 80V R5 10K R14 1K D6 1N4148 ZD1 1N965B C7 .033uF Q2 2N5551 1 2 3 4 5 CON3 R17 JUMPER R18 JUMPER 7250 / 7260 POWER SUPPLY 12816b00REV B 11 SBS W1 GND- W4 GND+ W2 GND- W5 GND+ W7 V+ W13V- CH_1+ CH_1_EN CH_1- W8 V+ W14V- CH_2+ CH_2_EN CH_2- W9 V+ W15V- CH

10、_3+ CH_3_EN CH_3- W10V+ W16V- CH_4+ CH_4_EN CH_4- W11V+ W17V- CH_6+ CH_6_EN CH_6- V+ V- V+ V- V+ V- V+ V- V+ V- AON AON AON AON AON W19AON W20AON W21AON W22AON W23AON W12V+ W18V- CH_5+ CH_5_EN CH_5- V- AON W24AON V+ AON W25 GND CTRL-OUT CTRL-IN W26 LED+ W27 GND For Bypass Only- GND-GND+GND-GND+ AC_B

11、LUE AC_YELLOW GND DEFEAT V+V- RL1 T9ASRELAY 24V RL2 T9ASRELAY 24V F1 2 AMP SLO-BLO F2 2 AMP SLO-BLO R15 910 3W R16 2 Ohm 10W R20 270 5W R19 2 Ohm 10 W V+ RL3 D11 1N4002 D12 1N4002 D13 1N4002 +C8 16V 1000uF F3 .5A W29V+ W31V- CH_8+ CH_8_EN CH_8- V+ V- AON W30AON W3 V+ W28V- CH_7+ CH_7_EN CH_7- V- AON

12、 W6AON V+ R21 100 2W R22 100 2W 1234 A B C D 4321 D C B A Title NumberRevisionSize A Date:17-Jul-2002Sheet of File:C:B&k_Data7125_RCA_Board13333a00.ddbDrawn By: RCA6RCA5RCA4RCA3RCA2RCA1 GND 13333a00 7270/7125 INPUT RCA BOARD REV A SBS RCA7RCA8 1 2 3 4 5 6 7 8 CON1 1 2 3 4 5 6 7 8 CON2 12 34 56 78 91

13、0 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 3132 3334 3536 3738 3940 JP1 1234 A B C D 4321 D C B A Title NumberRevisionSize A Date:17-Jul-2002Sheet of File:C:B&k_Data7125_Balance13321-01.ddbDrawn By: 12 34 56 78 910 1112 1314 1516 1718 1920 2122 2324 2526 2728 2930 3132 3334 3536 3738 3940 J

14、P1 HEADER 2X20 CH1+ SW1 SW-DPDT CH1- CH2- CH1_BAL- 2 1 3 F CON6 Channel_5 2 1 3 F CON14 Channel_8 2 1 3 F CON8 Channel_6 2 1 3 F CON13 Channel_7 CH5_BAL- CH5+ CH7_BAL- CH7+CH8+ CH8_BAL- CH6+ 2 1 3 F CON1 Channel_1 2 1 3 F CON7 Channel_4 2 1 3 F CON2 Channel_2 2 1 3 F CON5 Channel_3 CH1_BAL- CH1+ CH3

15、_BAL- CH3+CH4+ CH4_BAL- CH2+ CH2_BAL- CH6_BAL- R12.26K R93.01K CH2_BAL- R22.26K R103.01K SW2 SW-DPDT CH3- CH4- CH3_BAL- R32.26K R113.01K CH4_BAL- R42.26K R123.01K SW3 SW-DPDT CH5- CH6- CH5_BAL- R52.26K R133.01K CH6_BAL- R62.26K R143.01K SW4 SW-DPDT CH7- CH8- CH7_BAL- R72.26K R153.01K CH8_BAL- R82.26

16、K R163.01K CH2+ CH3+ CH4+ CH5+ CH6+ CH7+ CH8+ 1 2 3 4 5 CON4 CH5 1 2 3 4 5 CON16 CH8 1 2 3 4 5 CON12 CH7 1 2 3 4 5 CON3 CH1 1 2 3 4 5 CON9 CH2 1 2 3 4 5 CON10 CH3 1 2 3 4 5 CON15 CH4 1 2 3 4 5 CON11 CH6 CH1- CH1+ CH2- CH2+ CH3- CH3+ CH4- CH4+ CH5- CH5+ CH6- CH6+ CH7- CH7+ CH8- CH8+ W1 STAR_GND 7125-

17、7270 Balance Board 13321-00Rev - 1 of 1 SBS 1234 A B C D 4321 D C B A Title NumberRevisionSize A Date:17-Jul-2002Sheet of File:C:B&k_DataCtrl_IO13428-00.ddbDrawn By: B T CON2 1 2 3 4 5 CON1 Control I/O Board CONTROL I/O BOARD non-push button 13428-00REV - SBS W1 Ctrl W2 GND R1 Jumper R3 Jumper R2 Jumper