Carvin-BX1200-pre-sch维修电路原理图.pdf

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1、2. ALL CAPACITORS IN MICORFARADS, EXCEPT AS NOTED. NOTES: UNLESS OTHERWISE SPECIFIED. 4. ADDED AS SECONDARY OPERATION. 1. ALL RESISTORS IN OHMS EFF RETURN MASTER VOLUME GEORGE DREYER EFF SEND 5 5W Vert. 5 5W Vert. DIRECT LINE COMPRESSOR CROSSOVER GRAPHIC + GRAPHIC - GRAPHIC + GRAPHIC - COMP SENS GND

2、 LIFT MJD340 MJD350 MJD340 MJD350 PRE AMP CLIP 2 GRAPHIC GRAPHIC AMP2 + AMP1+ FOOT SW +15REAR -15REAR +15REAR -15REAR +15REAR -15REAR FAN GND FAN GND FAN GND +15VAMP +15VAMP -15VAMP +15VAMP -15VAMP +15VAMP -15VAMP -15VAMP -15VAMP +15VAMP -15VAMP +15VAMP -15VAMP +15VAMP -15VAMP +15VAMP PRE AMP .001F

3、-15VDC +15VDC BI-AMP .001F .033F .033F +15VDC +15VDC -15VDC BRIDGE BRIDGE 22 1W1% 22 1W1% Diode 1N914 SMT 340 350 340 350 Clip 2 Clip 1 5401 H3A.E H3A.B +15Vdc -15VDC 5401 AMP1- AMP2 - H3B.A H3B.F H3B.H H3B.G H3B.J H3B.D H3B.C H3B.I H3B.E H3B.B 560pF 120pF 560pF EFF - OP1.A OP1.B 120pF 330pF 120pF H

4、6A.D H6B.A H6B.D H6B.C H6A.C H6B.B H6A.B H6A.A 82pF .0047 82pF H3A.F H3A.D 1.5H 1.5H H3A.G H3A.H H3A.J .1F H3A.I H3A.A H3A.C .1F 10KF 10KF H4A.A H4A.B H4A.C H4A.D 120pF POWER 330pF 10KF C502B H1B.1 H1B.2 H1B.3 H1B.4 H1A.1 H1A.2 H1A.3 H1A.4 H2A.1 H2A.2 H2A.3 H2A.4 H2B.1 H2B.2 H2B.3 H2B.4 H12.1 H12.B

5、22F 22F 39pF 22F FREQ 22F 22F 100 22F 22F R118 R89 R86 R87 39pF R120 S1.A S1.B 39pF R108 r195 R95 S2.B S6.A S9.A CLIP 1 S2.A S6.B agnd N/C S9.B 2200 2200 39pF 27pF 7815 7915 39pF 27pF R286 -24V R130 R131 R133 C175 C177 C176 R138 R176 R178 C181 D111 R134 R186 C121R139 R140 R141 D107 R147 R142 R143 R1

6、44 R145 R230 R231 C275 R237 C277 C276 R238 R278 R279 C281 R330 Q203 Q202 R234 C221 Q205 Q204 R239 R240 R241 D207 R247 R242 R243 R244 R245 R420 R419 Q103 Q102 L100 Q105 Q104 P101 D103 L200 P201 D203 -24V R179 R177 R277 R276 D206 -24V K100 K200 -24V H7.C H7.B H7.A H7.D H7.E H7.F H7.G H7.H H7.I R314 R3

7、15 R322 R320 D310 D312 C317 D311 R317 R318 R323 R321 R311 R312 R325 R324 C310 R331 C503 C504 C501 C502 C507 Q217 Q117 R148 R248 C313 +25VDC aGnd R415 R414 R327 R329 Q303 H8.1 H8.2 H9.1 H9.2 .01.01 R408 R407 R92 R88 R90 R91 R93 R121 R122 R413 R418 R126 R123 R127 R124 R125R128 C401 C410 C408 R38 R83 C

8、19 R40 C52 C55 C56 C57 C54 C59 LOW R47 R41 R42 C20 R84 C51 C50 R85 R81 .01 .01 R80 R55 R56C29C28 R53R57 R58 R52 10K 10K 4.7K4.7K R54 C49 R78 R69 R70 R71 R72 C44 R73 R74 C46 R75 R76 C48 R77 10K10K10K10K 10K10K 10K 10K10K R82 C77 C76 P21P20P19P18P17P16P15P14P13 R60 R61 R62 R63 R64 R65 R66 R67 R68 R79

9、C24 R50 R51 R49 R48 C27 C53 D11 C65 C66 R39 R117 R119 J13 .01 .01 80V 47K smt 1/4w BR1 35V 35V Red Red VR1 VR2 220 RED YEL YEL GRN GRN GRN RED YEL YEL 50V 500 500 80V R417 C58 J10 EFF C30 63V cwcw HI cw cw D4 cw cw 22F D6 J5 1 D5 J4 V+ V- cw V+ V- V- V+ E1 22 EQ + + + + + + + + 1 2 3 + 4. Change C50

10、1, C502 to 10KmF 80V. System Master 2N5400 10K 2.2K 12340 World Trade Drive San Diego, CA 92128 (858) 487-1600 FAX 487-6629 REVISED BY: APPROVED: DRAWN BY:DATE: DATE: ASSY. DATE: ARVIN REV: REV: NO: PCB NO: C 47K 1K 47K 47K 10K 47K A3.A 2 3 +1 A28.A 2 3 +1 10K 10K 4.7k 4.7k 47K 47K 360K 2.2K 1.8K 36

11、0K 1.8K 360K 1.8K 360K 2.2K 360K 2.2K 360K 2.2K 360K 2.2K 360K 2.2K 150K 10K A5.A 2 3 +1 A5.B 6 5 +7 A6.A 2 3 +1 A6.B 6 5 +7 A7.A 2 3 +1 A7.B 6 5 +7 A8.A 2 3 +1 A8.B 6 5 +7 A9.A 2 3 +1 A9.B 6 5 +7 6.8K 4.7K 47K 10K6.8K 4.7K 47K 47K 100K A24.A 2 3 +1 A10.B 6 5 +7 4.7K 4.7K 47K 47K 47K 100K A14.A 2 3

12、+1 A14.B 6 5 +7 A4.A 2 3 +1 A4.B 6 5 +7 150K A13.A 2 3 +1 22K R111 33K 1K 4.7K 3.3K 3.3K 47K 47K 10K 10K 10K10K 100 100 A17.A 2 3 + 1 8 4 A17.B 6 5 + 7 10K 4.7K 4.7K R137 1K 4.7K 470 4.7K 1N914 D106 1N914 1K 1K 1K 1K 680 560 MJE15032 Q107 MJE15033 Q111 R1108 .22 5W R1109 .22 5W R1110 .22 5W R1112 .2

13、2 5W R1113 .22 5W R1114 .22 5W R150 22 1W R151 22 1W 33K 6.8K 100K 1N914 A20.A 2 3 + 1 8 4 A21.A 2 3 + 1 8 4 2043 A18.A 2 3 + 1 8 4 A18.B 6 5 + 7 A20.B 6 5 +7 A21.B 6 5 +7 100K 10K 5.6K 470K 1N914 10KK 4.7K 4.7K 47K 47K 1K 1N914 1N914 4.7K 1K 1K 1K 4.7K 470 1K 680 560 MJE15032 Q207 MJE15033 Q211 R25

14、0 22 1W R251 22 1W R2208 .22 5W R2209 .22 5W R2210 .22 5W R2212 .22 5W R2213 .22 5W R2214 .22 5W 6.8K 33K 100K 68K 1.8k 1.8K 22K 1K 100K 1K 10K 22K 3.3K A15.B 6 5 +7 A15.A 2 3 + 1 8 4 10K 10K 39pF C405 R409 150 R406 150 R405 100 R410 100K .001F C403 22F C404 22F C406 22F C407 22F C409 470 10K 10K 33

15、K 470 A12.B 6 5 +7 A16.B 6 5 +7 A16.A 2 3 + 1 8 4 R319 33K R233 2.2K 47K 27K 100K GND 1. Add Q110, Q210 (Type: MJL 21194). 2. Add Q114, Q214 ( Type: MJL 21193). 3. Add R168-R175, R268-R275 (0.22). AMP2 INSERT J2 AMP1 INSERT J1 J6 2+ 2- 1+ 1- J8 2+ 2- 1+ 1- J7 2+ 2- 1+ 1- phones J3 22F C64 + 22F C70

16、+ R2 47K R4 1K R97 1K FAN GND FAN GND FAN GND 5550 Q9 R100 2.2K R102 47K 5550 Q10 R101 2.2K MJD340 Q301 CURLIM CURLIM RELAY+ RELAY+ CURLIM C318 22 D17 R402 100K B50K P11 cw PL1 N E L F1 QC3E2 K1 AC Line in from switch AC Line to transformer +15REAR A12.A 2 3 + 1 8 4 -15REAR SPKR GND SPKR GND SPKR GN

17、D H10.A H10.D H10.C H10.B A22.A 4 5 +2 A22.B 6 7 +1 A22.C 10 11 +13 A22.D 8 9 +14 +15VDC R98 10K R104 10K R1062.2K R116 2.2K Q4 Q5 Q3Q2 SPKR GND 22 1W1% 22 1W1% R182 R136 #689#690 R198 1k R157 1M R158 1M R159 1M R160 1M +15REAR -15REAR A23.A 2 3 + 1 8 4 A23.B 6 5 +7 R422 10K R421 10K R425 10K R424 1

18、0K 27pFC84 27pFC88 FAN GND SPKR GND R20510K 27pF R206 C93 4.7K R20710K 27pF R208 C94 4.7K 7912 -12V Q7 R335 22 1W R334 22 1W R333 22 1W R332 22 1W + D10 1N914 D16 .1F C62 + .1F C63 + R21 15K +15VDC Diode SMB SMT1A D108B D109B D208B SMB D209B SMB D506 SMB D505 SMB D504 SMB D503 SMB D502 SMB D501 SMB

19、SMT A10.A 2 3 +1 A25.A 2 3 +1 A25.B 6 5 +7 120pF R10 R96 C67 33K 33K 120pF R99 R115 C72 33K 33K 100 smt 1/4w R166 100 smt 1/4w R167 R170 R168 10K 10K 330pFC73 C74 n/u R180 10K R174 R173 10K 10K 330pFC78 C79 n/u 330pFC80 R183 10K A24.B 6 5 +7 330pF R184 C81 10K R185 10K C186 22 + R289 150K R189 150k

20、C82 22 + 50801252505001.3k2.6k5k800 R209 3.3K +15VAMP +15VAMP 5550 Q302 +15VAMP +15VAMP +15VAMP D7 1N914 R210 100 R211 100 2043 R246150 R216150 R217150 R249150 R219150 R220150 R146150 R222150 R223150 R149150 R224150 R225150 5550 Q6 OUTPUT2 OUTPUT1 THERMAL DIODE D25D26 D27D28 1N914x4 R232 150K smt 1/

21、4w R229 150K smt 1/4w OUTPUT2 OUTPUT1 22uF C105 + 22uF C106 + Q14 2N5400 5550 Q15 -15VAMP R59 10K R226 47 D29 1N914 R227 220K R228 220K THERMAL DIODE Q106 Q206 AGND 25V FET 22F C104 + R1644.7 22F C107 + 22F C108 + R1624.7 INPUT H5A.A H5A.B N:256 R288 J12 R218 22K* R221 470K* 39pF* C109 100K H5A.C H5

22、A.D Q8 1F 1F 22K* R236 R254 R252 R257 R256 R258 C124 C123 + 365K 6.8K* 10K* 150K 22K* 1K R259 R260 15K* R264 R262 6.8K R267 4.7K* Q19 R266 365K R265 1M B100K P1 DRIVEcw0.22F/63v C111 thru D18 blue +15VDC R268 3.3K R274 R275 2.2K* 10K Q16 R280 1M Q18 10K R282 R281 R283 150K 6.8K n/uC112 25V FET R284

23、365K R285 R290 470K AGND 1F C113 + 1F C114 + + n/u C115 22F C116 + 1K R291 1K 22F C117 + 10K R292 .022FC118 6.8K R293 15K* 1F C120 + R294 1M 25V FET 0.22F/63v C122 thru R295 1K R296 1M 1F C125 + 39pFC127 R298 r299 R297 R287 cw cw A26.B 6 5 +7 10K 10K 4.7k 4.7k 39pFC130 R302 R303 R301 R300 cw cw A26.

24、A 2 3 +1 10K 10K 4.7k 4.7k COMP SENS D22D23 D24D30 22u C131 + R304 100 R305 100K R306 C132 .1 + 100K CLIP1 CLIP2 CLIP1 R307 C133 .1 + 100K CLIP2 R308 47K R309 47K 5401 Q17 -15VDC R310 10K EFF + MUTE R313 D31 mute 3.3K D33 R316 47K MUTE D32 R328 47K MUTE R33647K S12.B GEQ/MUTE S12.A R337 D34 EQ 1K -1

25、5REAR TUNER J14 R338 470 R339 470 B50K P5 amp2 39pFC136 R342 R343 R341 R340 A13.B 6 5 +7 100K 100K 10K 10K R344 n/u R345 0 550 Hz contour 1F R43 C137 R44 100K 10K A3.B 6 5 +7 82pF C23 82pFC138 R346 15K B50K P3 cw B50K P4 cw B50K P7 cw B50K P27 cw B50K P2 cw B50K P6 cw B50K P10 cw R1 10K 1000F/25V 10

26、00F 35V C520 C521 R5011K + MMBT5550 NPN Q500 .1C522 Z500 Z501Z502 1000F/25V C69+ 9.1v5.1v 5.1v B50K P8 amp1 B50K P12 cw + R5 2.2K 15C50Kx2 P23.B 15C50Kx2 P23.A 15C50Kx2 P26.B 15C50Kx2 P26.A 15C50Kx2 P28.B 15C50Kx2 P28.A 15C50Kx2 P9.A 15C50Kx2 P9.B 1F C31 + 1F C83 + 1F C85 + .22F C35 + A28.B 6 5 +7 R

27、7 10K R8 D1 X-OVER 3.3K +15VDC R9 150K R11 4.7K 500 ms delay R12 R16 470K smt 1/4w R17 -15REAR +15REAR +15REAR 220F 50V C11 + 220K C13 .047 250VAC Q1 C14 .047 250VAC R14 100K Q12 M LED R15 100K Q20 G LED +15VDC G LED M LED S3.AS3.B S4.A S7.A S4.B S7.B S5.A S5.B .1 C1 + .1 C2 + SPKR GND 27pFC3 27pFC4

28、 R19 10k R20 10k R22 1K5550 Q21 R23 680 R24 1K5550 Q22 R25 680 560P C182 TIP31 560P c184 .047 C180 560P C282 560P C284 .047 C280 TIP31 R1115 .22 5W R1116 .22 5W R2215 .22 5W R2216 .22 5W MJL21194 MJL21193 Q108 Q112 Q109 Q113 Q110 Q114 N/U N/U Q115 N/U Q116 N/U MJL21194 Q208Q209Q210 N/U Q216 N/U MJL2

29、1193 Q212 Q213Q214 N/U Q215 N/U ACROSS A4 .1F C5 + .1F C37 .068F C39 + .01F C34 + .022F C32 + .01F C36 + .0068F C38 + .0033F C40 + .033F C41 .0022F C42 .022F C43 .01F C45 .0068F C47 .0033F C129 R26 470 .01F C126 LOW MID MID HI MID BASSTREBLE .047F C26 .022F C110 .1F C25 .0047F C128 .0033F C22 .022F

30、C135 .047F C134 .022F C21 SMT SCREEN HOLES 30MAY05 80-42800 80-42122 30-42500 ACTIVE DI out J9 12 3 R609 150 R606 150 R605 100 R610 100K .001F C603 R602 100K a gnd H13A.A H13A.B H13A.C H13A.D input H13B.A H13B.B H13B.C H13B.D GND LIFT S8.A S8.B 22F C607 22FC608 AGND DI IN DI OUT DI IN B400 DI PRE S1

31、0.A S10.BD.I.PRE B801 B401 B402 B403 B400 CLIP B404 LED CLIP 1 LED CLIP 1 B400 MST B400 DI B405 B801 B401, B402, B403, B404 B406 MONO NPN DRIVE MONO PNP DRIVE OUTPUT2 B407 MONO NPN DRIVE MONO PNP DRIVE B408 QC1A QC1B B405, B406, B407, B408 B400 Spk J11 SPKR GND B400 Spk J15 SPKR GND H99.C H99.D H99B

32、.D H99B.C R28 100K S11.B FX/MUTE S11.A R29 R27 EFF FSW D3 D2 EQ FSW 3.3K 3.3K 39pF C6 R30 47K N:256 D.I.PRE +15REAR +15REAR B409 B409 mono phone B400 Q11 +15VDC H99.A H99B.A H99.B H99B.B D.I. POST CLIP 2 CLIP 1 AMP1 TOP AMP2 TOP H11A.B H11A.A H11A.F H11A.D H11A.C H11A.E D.I.PRE CLIP1 H11A.H H11A.GRE

33、TURN SEND H4B.A H4B.B H4B.C H4B.D +15VDC -15VDC +15VDC -15VDC GND a gnd H5B.A H5B.B H5B.C H5B.D input CLIP 2 CLIP 1 H11B.D H11B.F H11B.B H11B.A H11B.C H11B.E H11B.H H11B.G CLIP2 EFF - EFF + R3 100 GEORGE DREYER Changes from Assembly Rev (B). 1. Fan high speed circuit correction. 2. correct shorted j

34、umpers 1. Add resistors for P5 &P8 on BR600 CHANGES FOR BX1200 ASSEMBLY: 80-42122 BX600 Assembly jumpers BX1200 Assembly jumpers BX600, BX1200 2. correct bias circuit on amp 2 R6 47K R13 47K E B B 11AUG06 Changes from Assembly Rev (C) not made. 1. Change C18 to through hle 0.47UF. Changes from Assem

35、bly Rev (D). 2. added diode on JFET rail to remove turn off pop. 3. added feedback cap to A10A. 4. added cap coupling to EQ switching circuit and parameteric mids. Also resistor to bleed C52. .22F C7 22F C8 22F C9 R31 15K 82pF C10 D8 SMB MUTE C12 R32 .01 47K Q13 R33 1M R34 10K +15VDC R18 n/u DI OUT 1F C15 + R35 10K R36 100 AGND A GND pot body grounding n/u RadioFans.CN 收音机爱 好者资料库