Carvin-BX120-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 MMBT5550 NPN MMBT5401 PNP EFF RETURN MASTER VOLUME EFF SEND/ tuner COMPRESSOR 1000F 25V 1000F 25V GRAPHIC + GRAPHIC - GRAPHIC + GRAPHIC - COMP SENS GND LIFT

2、 GRAPHIC GRAPHIC .0033F FOOT SW +15VDC -15VDC CLEAN +15VAMP +15VAMP -15VAMP -15VAMP -15VAMP +15VAMP -15VAMP +15VAMP PRE AMP -15VDC +15VDC +15VDC 22 1W1% 5401 OP1.A OP1.B 120pF 82pF .0047 1.5H .1F POWER 22F 22F 39pF 22F 22F 22F 22F R118 R120 39pF R108 R94 R95 S6.A S6.B 82pF 7815 7915 R133 C177 C176 R

3、138 R176 R178 C181 D111 R134 C121 R139 R140 R141 D107 R147 R142 R143 R144 R145 R330 R419 L100 Q105 Q104 R179 R177 -24VDC K100 R322 R320 D310 D312 C317 R323 R321 R311 R312 R325 R324 R331 C503A C504A Q117 R148 C313 R415 1F R327 R329 Q303 R408 R407 R122 R413 C401 C410 R38 R83 C19 R40 C52 R47 C22A R41 R

4、42 C20 R84 C51 C50 R85 R81 .01 .01 R80 R57 R58 R52 10K 10K 4.7K R82 C77 C76 R79 C53 D11 C65 C66 R39 R117 J13 .01 VR1 VR2 C18 J10 cw cw D4 D6 J5 1 J4 V+ V- 22 EQ + + + + + 12 3 System Master 2N5400 10K 2.2K 12340 World Trade Drive San Diego, CA 92128 (858) 487-1600 FAX 487-6629 REVISED BY: APPROVED:

5、DRAWN BY:DATE: DATE: ASSY. DATE: ARVIN REV: REV: NO: PCB NO: C 47K 1K 47K 10K 2.2K 10K A3.A 2 3 +1 10K 33K 47k 10K 10K 33K 47k A10.B 6 5 +7 A4.A 2 3 +1 A4.B 6 5 +7 150K A13.A 2 3 +1 22K R111 33K 1K 3.3K 3.3K 47K A17.B 6 5 + 7 8 4 A17.A 2 3 + 1 4.7K R137 330 4.7K 470 4.7K 1N914 D106 1N914 680 680 1K

6、1K 680 560 R1108 .15 5W R1112 .15 5W 22K 10K 100K 1N914 A20.B 6 5 + 7 8 4 2043 A20.A 2 3 +1 100K 10K 5.6K 470K 1N914 47K 150K 1.8k 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 10 33K R319 33K 47K 27K R4150K CL

7、EAN CURLIM CURLIM C318 22 D17 R402 100K B50K P11 cw F1 A22.D 8 9 +14 A22.B 6 7 +1 A22.C 10 11 +13 A22.A 4 5 +2 +15VDC R98 10K R116 10K Q4 Q5 SPKR GND 22 1W1%R136 #689#690 R197nu R198 1K R159 1M R160 1M + D10 1N914 D16 .1F C62 + R21 15K D108B D109B D504 D501 SMT A10.A 2 3 +1 R174 R173 10K 10K 330pFC7

8、8 C186 22 + R189 150k R209 3.3K +15VAMP +15VAMP 5550 Q302 +15VAMP +15VAMP R210 10 R222100 R223100 R224100 R225100 THERMAL DIODE D25 D26 R232 150K smt 1/4w OUTPUT1 22uF C106 + 5550 Q15 R226 270 R227 220K R228 220K THERMAL DIODE Q106 25V FET R1644.7 22F C107 + 22F C108 + R1624.7 INPUT H5A.A H5A.B D.I.

9、PRE R288 J12 R218 22K* R221 470K* 39pF* C109 100K H5A.C H5A.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 DRIVEcw 0.22F/63v C111 thru D18 YEL +15VDC R268 10K R274 R275 2.2K* 10K Q16 R280

10、1M Q18 10K R282 R281 R283 150K 6.8K 25V FET R284 365K R285 R290 470K AGND 1F C113 + 1F C114 + + 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

11、 A26.A 2 3 +1 COMP SENS D22D23 D24D30 22u C131 + R304 0 R305 100K R306 C132 .1 + 100K CLIP1 MUTE 1 R313 D31 mute 3.3K R316 47K R328 47K MUTE 1 R33647K R339 470 .022F .047F 39pFC136 R342 R343 C134A C135A R341 R340 cw A13.B 6 5 +7 100K 100K 10K 10K 550 Hz contour 1F R43 C137 R44 100K 2.2K A3.B 6 5 +7

12、330pF C23 330pFC138 R346 15K B50K P3 cw B50K P7 cw B50K P2 cw B50K P6 cw B50K P10 cw R1 22K C520 R5011K MMBT5550 NPN Q500 .1C522 Z500 Z501Z502 9.1v9.1v 5.1v B50KP12 cw + R3 10K R5 10K 15C50Kx2 P26.B 15C50Kx2 P26.A C13 .047 250VAC S3.AS3.B S7.A S7.B S5.A S5.B .1 C1 + .1 C2 + 4.7K smt 1/4w R18 R22 1K5

13、550 Q21 R23 680 560P C182 TIP31 560P c184 .047 C180 BDW83C BDW84C Q108 Q112 R26 470 .01F C126 MID BASSTREBLE .022F C110 .01F C22 .022F C135 .047F C134 .033F C21 SMT SCREEN HOLES Changes from Assembly Rev (A). speaker J7 SPKR GND speaker J8 SPKR GND J9 SPKR GND a gnd H2A.A H2A.B H2A.C H2A.D input AGN

14、D E4 D.I.PRE H6A.A H6A.B H6A.H H6A.G H6A.E H6A.F H6A.C H6A.D 24VJFETS +24FRONT 5550 5401 Q103 Q102 .1F C5 + CLEAN a gnd H5B.A H5B.B H5B.C H5B.D input H6B.A H6B.B H6B.H H6B.G H6B.E H6B.F H6B.C H6B.D H2B.A H2B.B H2B.C H2B.D MUTE 2 MUTE 2 GRAPHIC V+ V- V+: +43VDC V-: -43VDC 1.8K smt 1/4w R190 -24VDC 1.

15、8K smt 1/4w R191 Z11Z12Z13 R15 470 30-42120 80-42120 26SEPT05 1.8K smt 1/4w R8 1.8K smt 1/4w R16 0.01F Film SMT 500 Hz800 Hz250Hz .0033 560pF 2K Hz .0022 .0022 360K smt 1/4w 4.7K smt 1/4w 220K smt 1/4w 4.7K smt 1/4w 220K smt 1/4w 3.9K smt 1/4w 150K smt 1/4w 3.9K smt 1/4w 220K smt 1/4w 4.7K smt 1/4w

16、.033 A9.A A9.B A8.A A11.A A8.BA11.B 80Hz 82pF .047 10K smt 1/4w 10K smt 1/4w .01 R184 P9 R169 R6 R171 C6 C71 R7 C75 C74R9 R172 C7 C8 R175 R10 C9 C10 R13 R12 C12 C82 C83 R14 10K 10K10K10K10K .1 P4 P5 P8 P13 .1 !- + !- + !- + !- + !- + !- + C72 .1 82pF C81 4.7K smt 1/4w R17 line out /phones H6A.I H6A.

17、J A16.B 6 5 +7 5550 Q1 5401 Q2 R2 1K PHONESOUT CLIP1 +15VDC -15VDC +24FRONT H3B.A H3B.H H3B.G H3B.D H3B.C H3B.B H3B.F H3B.E H3B.I H3B.J AMP1- AMP1- RETURN SEND RETURN SEND +15VAMP -15VAMP -15VAMP +15VAMP A16.A 2 3 + 1 8 4 OUTPUT1 PHONESOUT H6B.J H6B.I SEND AMP RETURN AMP EM FSW GEQ FSW EM FSW GEQ FS

18、W +15VAMP -15VAMP 24VJFETS H3A.E H3A.B H3A.F H3A.D H3A.G H3A.H H3A.A H3A.C CLIP AMP CLIP AMP GEQ F SW AMP MU F SW AMP SEND AMP RETURN AMP GEQ F SW AMP MU F SW AMP H3A.I H3A.J #91#212#278#268 Screw Holes for Power Amp Devices C521 22 + E8E7E6 Q3 TIP31 GEORGE DREYER GEORGE DREYER R11 330 Proto correct

19、ions: -15V via grounded, R257 grounded, Locational errors D11 moved up; added R11. LINE QC4 NEUTRAL QC3 L2 L1 C27 + C30 C31 + C35 C34 TR1 T R19 V- V+ C42+C44+ D5 D7 R25 OP2 Z2 Z4 POWER SUPPLY 22F 22F + + L5 L6 .0022 120F 35V 9.1V 3.3k 1.5K L4 12 34 C14 C15 C700 C708 L3 12 34 C16 FSCQ1565RT Vsync Dra

20、in PWM Vcc GND Vfb 4 1 53 2 Q9 FSCQ1565 vert Z3 16V C17 + R27 C24 + .0022 630V 22uF 50V 22uF 50V LOW SEC (pin10) HI SEC SHLD BIAS N/U PRI DSP U2 22U 50V C3 22 + C422 50v + R293.9K R203.9K R303.9K 110K R28 110K R24 C11 PRI COM PRI COM PRI COM PRI COM PRI COM PRI COM FB FB PRI COM 470 .047 D1 D8 D21 C

21、40 + R31 Z1 0.0047F 250V AC C25 + QC6_SWswitch QC7_SWswitch NOTE: B1 IS CUT, AND B2 INSTALLED FOR 240V. B2 IS CUT, AND B1 INSTALLED FOR 120V ONLY. N:48 N:48 PRI COM C26A + 120F C26B + 120F B120 B240 PRI HI PRI HI PRI COM N:48 E1 D2 Q105A Q104A QC1GND 22 1W1% R32 22 1W1% R33 C C 14JULY06 BX120 RadioFans.CN 收音机爱 好者资料库