Mackie_MR8_mk3_Schematics电路图.pdf

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1、MR8mk3 REV:3.0SHEET: 1 OF1 DWG NO: LOUD Technologies A B C D 654321 D C B A DRAWN:DATED:DATED:CHECKED:APPROVED:DATED: TITLE: COMPANY: SIZE:A2 Balance Input Unbalance Input robertJun.07.2013 T+ T- W+ W- LOW FREQ ADJUST HIGH FREQ ADJUST 0dB -2dB +2dB 0dB 0dB +2dB +2dB +4dB +4dB Y-CAP - + 3 2 1 U1-A MC

2、4558 - + 5 6 7 U1-B MC4558 R1 10K R2 10K R3 4.99K R44.99K C3 221 C1 22uF/25V C2 22uF/25V C4221 2 1 RCA1 RCA-112-FB C7 22uF/25V R8 100K C8 102 - + 3 2 1 U2-A MC4558 R5 10K R11 10K R9 4.99K R10 10K C9 101/C - + 5 6 7 U3-B MC4558 R23 2K R24 15K C15 102 R19 18K R20 5M R16 18K R17 omitR22 30K C14153 C131

3、53 R14 20K C12 101 R1851K R13 4.99K C5 102 C6 102 R6 47K R7 47K C1022uF/25V C11 22uF/25V R12 100K C23 22uF/25V - + 3 2 1 U3-A MC4558 1 2 3 CN2-A 1 2 3 4 5 CK 12 3 XLR1 1 2 3 CN2-B C16 102 1 2 3 VR1 10KB C17 472/63V C18 332/63V R25 15.9K R26 5.9K R27 13.3K R28 4.3K R29 4.7K R30 4.7K C19 153/63V C20 1

4、03/63V R31 10k R35 16k C21 0.47UF/50V C22 0.47UF/50V R32 36K R34 1.2K - + 5 6 7 U5-B MC4558 - + 3 2 1 U5-A MC4558 - + 3 2 1 U6-A MC4558 - + 5 6 7 U6-B MC4558 R33 1.3K C24 101 1 2 3 4 SW1-A R36 4.99K R37 4.02K R38 0 R39 4K7 8 4 U1-C MC4558 8 4 U2-C MC4558 - + 3 2 1 U4-A MC4558 R40 4K7 C25 101 1 2 3 4

5、 SW2-A 5 6 7 8 SW2-B R41 2.2K R42 560 R43 4.99K R44 4.99K R45 6.8K R46 9.1K C26 104/63V C27 104/63V 8 4 U3-C MC4558 8 4 U5-C MC4558 8 4 U4-C MC4558 - + 5 6 7 U4-B MC4558 R47 3K R48 120K C30 22uF/50V R55 10K C33 331 R54 4.7K C29 104/MET C3447U/25V R53 4.7/0.5 R52 20K R49 820 R50 22K R51 27K 7 3 4 1 2

6、65 U8 TDA2052 C31 22U/25 D2 1N4148 1 2 TWEETER 1 2 WOOFER 1 2 3 CN1-A R71100/1W R72 100/1W C51 104 C52 104 C49 220UF/16V C50 220UF/16V 1 2 3 4 BD1 KBL406 R69 2.2K/0.5W R70 10K/0.25W C47 104/C C48 104/C C45 4700UF/35V C46 4700UF/35V 1 IN 2 GND 3OUT U17 7812 2 IN 1 GND3 OUT U18 7912 D31N4004 C43 4.7U/

7、25V R63 10K R64 330 R65 30K E B C Q1 1815 R66 47K R675.1K R68 10 C44 100U/25V Z1 9.1V R73 0 1 2 CN6-A - + 5 6 7 U2-B MC4558 R744.99k R75 5.6k C53 101 C54 104 C55 104 C58 104 C59 104 C60 104 C61 104 8 4 U6-C MC4558 1019815 6 14 1372 3 4 U16 TDA7294 R86 100 R90 20K R91 820 R92 15K R93 20K R94 10K R95

8、15K R96 OMIT D4 1N4148 C90 10U/50V C93 10U/50V C94 681 C99 22U/25V C100 220U/16V C103 47U/50V R15 4.7/1W C104 104/MET 1 2 CN1-A1 1 2 3 4 BD2 KBU808 C28 104/C C36 104/C C84 4700UF/50V C89 4700UF/50V R21OMITR56 9.1K D1 1N4004 LN AC FUSE T1A/250V POWER_SWITCH 1 2 3 CN1-B C32 103/250V 1 2 CN1-B1 1 23 4 5 6 7 T1 1 2 CN6-B R101 omit 12 LED1 omit R100 1.5K 12 LED2 GREEN R103 omit 12 LED3 omit R102 1.5K 12 LED4 GREEN +VCC -VCC -VCC +VCC -12V +12V +12V -12V +12V VDD VEE VDDVEE LP_OUT 1 HP_OUT 1 HP_OUT 1 LP_OUT 1 MUTE 1 MUTE 1 RadioFans.CN 收音机爱 好者资料库 LOUD Technologies RadioFans.CN 收音机爱 好者资料库