BKComponents-AV125-pwr-sch维修电路原理图.pdf

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1、AV125.7-AV125.5AV125.7-AV125.5 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 654321 D C B A T

2、itle NumberRevisionSize B Date:14-Aug-2002Sheet of File:C:B&k_Data7125_Amp_Bd13315b00.ddb Drawn By: C4 120pF C6 .12uF + C8 10uF 25V + C13 10uF 25V + C14 100uF 25V + C3 100uF 25V V+ R16 10K D1 1N4751 R17 100K R12 221 Q3 2N5087 M Q2 2N5087 M Q9 2N5210 Q10 2N5210 R14 133 R13 221 Q1 2N5416 R11 47.5 P1 5

3、00 Q12 2N5210 M Q11 2N5210 M R27 1.5K 1 2 3 4 5 CON1 R22 221 R23 221 R7 10K R9 475 Q5 2N5210 R21 221 Q7 2N5210 Q4 2N5210 Q6 2N5210 Q8 2N3440 R29 47.5 P2 500 R24 2.26K R25 2.26K R26 33.2K R19 47.5K R18 221K V- R15 47.5K R2033.2K R2 3.01K R1 3.01K RP1 .47 5W RP4 .47 5W R4 1.5K RP5 .47 5W RP2 .47 5W D2

4、 1N4148 R30 OPEN R28 100K D3 1N965B R31 10K Q13 2N5401 D4 1N4751 R8 1K R5 1.5K 7125 Amp Channels 1-2 2 3 SBS/ESM B R10 1M QP1 2SJ162 QP2 2SJ162 QN1 2SK1058 QN2 2SK1058 W2V+ W4 V- W1 OUT A W5 GND W3 CTRL C2 .12uF + C9 100uF 100V C1 .12uF + C11 100uF 100V R3 3.01K R6 1.5K RP3 .47 5W QN3 2SK1058 RP6 .4

5、7 5W QP3 2SJ162 13315b01.sch GNDA CH2+ CH2- R32 Jumper CH1+ CH1- GNDA W6 PRE+ W7 PRE- PRE- PRE+ PRE+ PRE- CH2- CH2+ C7 .12uF C5 .12uF 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:14-Aug-2002Sheet of File:C:B&k_Data7125_Amp_Bd13315b00.ddb Drawn By: C4_1 120pF C6_1 .12uF + C8_1 10uF 2

6、5V + C13_1 10uF 25V + C14_1 100uF 25V + C3_1 100uF 25V V+_2 R16_1 10K D1_1 1N4751 R17_1 100K R12_1 221 Q3_1 2N5087 M Q2_1 2N5087 M Q9_1 2N5210 Q10_1 2N5210 R14_1 133 R13_1 221 Q1_1 2N5416 R11_1 47.5 P1_1 500 Q12_1 2N5210 M Q11_1 2N5210 M R27_1 1.5K R22_1 221 R23_1 221 R7_1 10K R9_1 475 Q5_1 2N5210 R

7、21_1 221 Q7_1 2N5210 Q4_1 2N5210 Q6_1 2N5210 Q8_1 2N3440 R29_1 47.5 P2_1 500 R24_1 2.26K R25_1 2.26K R26_1 33.2K R19_1 47.5K R18_1 221K V-_2 R15_1 47.5K R20_1 33.2K R2_1 3.01K R1_1 3.01K RP1_1 .47 5W RP4_1 .47 5W R4_1 1.5K RP5_1 .47 5W RP2_1 .47 5W D2_1 1N4148 R30_1 OPEN R28_1 100K D3_1 1N965B R31_1

8、 10K Q13_1 2N5401 D4_1 1N4751 R8_1 1K R5_1 1.5K 7125 Amp Channels 3-4 3 3 SBS/ESM B R10_1 1M QP1_1 2SJ162 QP2_1 2SJ162 QN1_1 2SK1058 QN2_1 2SK1058 W1_1 OUT B W5_1 GND_2 C2_1 .12uF + C9_1 100uF 100V C1_1 .12uF + C11_1 100uF 100V R3_1 3.01K R6_1 1.5K RP3_1 .47 5W QN3_1 2SK1058 RP6_1 .47 5W QP3_1 2SJ16

9、2 13315b02.sch GNDA CH2+ W2_1V+_2 W3_1 CRTL_2 W4_1 V-_2 CH2- R32_1 Jumper CH2+ CH2- PRE+ PRE- PRE+ PRE- GNDA 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:17-Jul-2002Sheet of File:C:B&k_Data7125_power_supply13316-00.ddbDrawn By: R10 133 BR1 BR2 CON5AC_IN CON4AC_IN V-1V+1V- + C2 15KuF

10、 75V + C1 15KuF 75V R9 33.2K D11 1N4148 D10 1N4148 D8 1N4148 D6 1N4148 D5 1N4148 R8 10K Q4 2N5551 Q2TIP32C Q3 TIP31CR6 5.62 R7 2.2K 5W D9 1N965B D3 1N4002 D1 1N4002 D7 1N4002 + C4 15KuF 75V R3 10K R5 1K D2 1N4148 D4 1N965B C5 .033uF Q1 2N5551 1 2 3 4 5 CON3 7125 POWER SUPPLY 13316-00- 11 SBS/ESM W1

11、GND- W4 GND+ W7 V+ W13 V- W8 V+ W14 V- W9 V+ W15 V- W10 V+ W16 V- AON AON AON AON W19AON W20AON W21AON W22AON AON W25 GND CTRL-OUT CTRL-IN W26 LED+ W27 GND For Bypass Only- GND-GND+ AC_BLUE AC_YELLOW DEFEAT V+ + C3 15KuF 75V R4 JUMPER W2 V+ V+ W3 V+ V+1 W5 V- V- W6 V- V-1 CON6NC CON7NC R2 910 3W R1

12、910 3W J1 W28V+ W30V- W31V+ W33V- W34V+ W36V- W37V+ W39V- AON AON AON AON W29AON W32AON W35AON W38AON W46 V+ V+ W47 V+ V+1 W48 V- V- W49 V- V-1 W52 GND- W53 GND- W50 GND+ W51 GND+ R11 910 3W F1 FUSE F2 FUSE F3 FUSE F7 FUSE F8 FUSE F9 FUSE F10 FUSE F11 FUSE F16 FUSE F15 FUSE F14 FUSE F13 FUSE F12 FUS

13、E F6 FUSE F5 FUSE F4 FUSE V+V+1 V-V-1 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

14、 78 910 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

15、3940 JP1 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- CH

16、1+ CH3_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-

17、R82.26K 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

18、 7125-7270 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