Ampeg_BA112v2_Preamp_Schematic电路图.pdf

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1、C01 AMPEG BA112v2 PREAMP 2042656-XX_C01.sch 2013 LOUD TECHNOLOGIES INC. 4/25/2013db 2042656-XX 1 134 56 78 D C B A 87654 C ALL RIGHTS RESERVED THE INFORMATION CONTAINED HEREIN IS PROPRIETARY AND CONFIDENTIAL PROPERTY OF LOUD TECHNOLOGIES INC. 3 APPROVALSDATE DRAWN: CHECKED: NP ENG: MATERIAL: MFG: MF

2、G ENG: ISSUED: D SIZE DWG FILE: 2 NONE SCALE: DWG. NO. SHEET 1 1 OF REV. A B C D 2 Technologies Inc. 16220 WOOD-RED RD NE WOODINVILLE, WA 98072 ! ! = DO NOT STUFF * 3.5MM 3.5MM * * TP1 100mVrms 1kHz SINE WAVE ALL CONTROLS AT CENTER ALL PUSHBUTTONS OUT TEST POINT TABLE ALL MEASUREMENTS ARE VAC RMS TP

3、2 TP3 TP4 TP5 TP6 1.1 TAKING THESE MEASUREMENTS IS DANGEROUS! QUALIFIED TECHNICIANS ONLY 15V REGULAR OPERATION, -15V MUTE ENGAGED TP1 TP2 TP3 TP4 TP5 TP6 REFERENCED TO GROUND COMPONENTS NOTED WITH THIS SYMBOL SHALL BE REPLACED ONLY BY THE COMPONENT SPECIFIED. THIS IS REQUIRED TO MAINTAIN PRODUCT SAF

4、ETY. * * * AUX / MAIN PHONES SUMMER AV MAINS-IN = 0dB AV AUX-IN = 9.6dB PHONE OUTPUT AMP AV = 17.1dB 65.8KHz 1.1 3.6 0.4 2.7 0.5 J41 INPUT R1 68K1 R2 4K75 R3 15K0 C19 10uF D4 BAV99 D S G Q2 J112 Q5 IMBT4403 C20 .1 R44 1M R45 8K25 R47 3K32 C24 680PF R48 10K0 C25 10uF R49 825 R50 100 R51 100 C26 100UF

5、 C27 100UF D S G Q4 J112 Q6 IMBT4403 C28 .1 R52 1M R53 8K25 R54 3K32 C29 .0047 R55 10K0 C31 10uF R56 562 CW P4 50KA DRIVE R57 1K00 R58 4K99 D5 BAV99 R59 100 R60 100K CW P6 50KB BLEND R61 100K C37 0.01uF Q7 2N7002 Q8 2N7002 Q9 IMBT4401 Q10 IMBT4403 R62 40K2 R63 2K49 R66 100K R68 40K2 R69 40K2 R70 100

6、K C38 0.01uF Q11 2N7002 Q12 2N7002 J5 FOOTSWITCH R129 2K2 1W D15 GRN SB ENGAGE Q30 IMBT4403 R130 100K Q33 IMBT4401 R143 10K0 R18 100K 2 3 1 U3-A NJM072B R141 100K C1 1UF CW P13 50KA VOLUME J42 AUX IN-MONO CW R8-A 50KB AUX LEVEL CW R8-B 50KB R263 10K0 R19 10K0 R22 100K C252 0.01uF R23 10K0 R24 10K0 Q

7、1 2N7002 Q3 2N7002 D3 BAV99 R20 0 6 5 7 U4-B NJM072B R9 10K0 R15 10K0 C5 100PF R1050 6K81 R1080 6K81 R26 100 1206 C735 680PF C733 680PF 2 3 1 U6-A NJM4580M 6 5 7 U6-B NJM4580M R1039 121K R1056 121K C734 20PF C738 20PF 8 4 U6-C NJM4580M 2 3 1 U4-A NJM072B 8 4 U4-C NJM072B 2 3 1 U5-A NJM072B 6 5 7 U5-

8、B NJM072B 8 4 U5-C NJM072B C9 10uF C10 10uF C11 470PF R31 51K R32 10K0 D1 BAV99 R33 0 R27 100 1206 R28 10K0 D2 BAV99 R29 0 R34 10K0 R37 3K32 R38 10K0 R39 3K32 R40 10K0 R42 10K0 C594 .01 C595 .01 C12 .01 C13 .01 C14 .01 C15 .01 R43 24K9 C18 100PF R73 0 8 4 U3-C NJM072B C6 .01 C8 .01 R16 100 R17 100 Q

9、25 IMBT4401 Q48 IMBT4403 R648 40K2 R649 100K R650 4K99 R647 40K2 R342 40K2 R142 40K2 Q32 IMBT4403 R145 100K C17 4.7UF R11 4K99 D6 BAV99 D9 BAV99 J1 AUX IN-STEREO J2 PHONES SCH1 SCHEMATIC PCB ASSY BA112 PREAMP 2042656-XX PCB1 PCB FAB BA112 PREAMP 2042655-02 R67 15K0 C96 6800PF R65 221K R186 221K R74

10、100K R75 182K R83 10K0 C104 .022 R78 100K C98 680PF C99 5600PF C101 .1 R76 56K2 R79 5K23 C105 .01 R84 1K00 C106 .068 R85 4K75 R88 4K75 C107 .1 R77 22K1 C108 .1 R80 150K 1% 6 5 7 U2-B NJM072B R81 3.3M R82 3.3M C45 100PF R86 15K0 R87 22K1 2 3 1 U2-A NJM072B 6 5 7 U7-B NJM072B R89 182K C46 0.22UF R90 3

11、01K CW P7 50KA BASS CW P8 50KA TREBLE R95 2M0 R98 4K99 R100 56K2 2 3 1 U7-A NJM072B C50 .022 C51 .1 C52 .1 R91 10K0 R92 10K0 R93 10K0 R94 20K0 C47 .0047 C48 .022 C49 .0047 R96 33K2 R97 4K75 R99 7K50 CW P9 50KB MIDRANGE C53 0.22UF 8 4 U2-C NJM072B 8 4 U7-C NJM072B C2 .01 C3 .01 C4 .01 C23 .01 6 5 7 U

12、3-B NJM072B D8 GRN SB R25 15K0 1 2 3 S1-A -15DB PAD 4 5 6 S1-B 1 2 3 S4-A ENGAGE 4 5 6 S4-B 1 2 3 S3-A ULTRA HI 4 5 6 S3-B 1 2 3 S2-A ULTRA LO 4 5 6 S2-B R36 0 C42 100UF C43 100UF R12 10 R13 10 C16 10uF C21 10uF J9-1 POWER IN J9-2 J9-3 J9-4 R7 2K2 R14 2K2 D13 PURPLE POWER LED D7 PURPLE J9-5 R35 0 C3

13、0 100PF R4 10K0 R5 10K 1206 R127 47K5 C71 .047 C32 .1 C34 .1 R128 10K0 C72 .0068 R64 1K00 D12 RED D10 RED C7 0.27uF C33 47PF 1 ZZ1 1 ZZ2 R6 100 1206 C75680PF C22680PF C35680PF C36680PF C39 680PF FTP1 FTP2 FTP3 FTP4 FTP5 FTP6 FTP7 FTP8 FTP9 FTP10 FTP11 FTP12 FTP13FTP14 FTP15 FTP16 FTP17 FTP18FTP19 FTP20 FTP21 1 ZZ3 C40 1500pF RTV1 SILICONE RTV NON-FLOWABLE PASTE 2034504 C41220PF R10 3K32 R21 51K1 -15V +15V -15V +15V +15V -15V +15V -15V +15V-M -15V-M PHONES_GND +15V-M -15V-M GND-M GND-M AMP_OUT CTRL2 CTRL2 CTRL1 CTRL1 MUTE ULTRA +15V-M -15V-M GND-M AMP_OUT MUTE RadioFans.CN 收音机爱 好者资料库