Carvin-BR120-pre-sch维修电路原理图.pdf

《Carvin-BR120-pre-sch维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Carvin-BR120-pre-sch维修电路原理图.pdf（1页珍藏版）》请在收音机爱好者资料库上搜索。

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 5 5W Vert. COMPRESSOR 1000F 25V 1000F 25V GRAPHIC + GRAPHIC - GRAPHIC + GRAPHIC - COMP SE

2、NS GND LIFT GRAPHIC GRAPHIC .01F 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 C1

3、77 C176 R138 R176 R178 C181 D111 R134 R186 C121R139 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 R

4、47 C22A R41 R42 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 + + + + + 1 2 3 System Master 2N5400 10K 2.2K 12340 World Trade Drive San Diego, CA 92128 (858) 487-1600 FAX 487-6629 REVISED

5、BY: APPROVED: DRAWN BY:DATE: DATE: ASSY. DATE: ARVIN REV: REV: NO: PCB NO: C 47K 470 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 1N

6、914 680 680 1K 1K 680 560 R1108 .22 5W R1112 .22 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 47

7、K 27K R4150K CLEAN CURLIM CURLIM C318 22 D17 R402 100K B50K P11 cw PL1 N E L 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 EARTH GND + D10 1N914 D16 .1F C62 + R21 15K D108B D109B D504 SMB D503 SMB

8、 D502 SMB D501 SMB SMT A10.A 2 3 +1 R174 R173 10K 10K 330pFC78 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

9、 R1644.7 22F C107 + 22F C108 + R1624.7 INPUT H5A.A H5A.B D.I.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 68K 22K* 1K R259 R260 15K* R264 R262 6.8K R267 4.7K* Q19 R266 150K R265 1M B100K P1 DRIVEcw 0.033F C111 th

10、ru D18 YEL +15VDC R268 10K R274 R275 2.2K* 10K Q16 R280 1M Q18 10K R282 R281 R283 150K 6.8K 25V FET R284 365K R285 R290 100K AGND 1F C113 + 1F C114 + + 22F C116 + 2.2K R291 1K 22F C117 + 4.7K R292 .047FC118 3.3K R293 6.8K 1F C120 + R294 1M 25V FET 0.033F C122 thru R295 1K R296 1M 1F C125 + 39pFC127

11、R298 R299 R297 R287 cw cw A26.B 6 5 +7 10K 10K 4.7K 4.7K 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 33K 33K 10K 10K

12、 550 Hz contour 1F R43 C137 R44 100K 2.2K A3.B 6 5 +7 82pF C23 82pFC138 R346 15K B50K P3 cw B50K P7 cw B50K P2 cw B50K P6 cw B50K P10 cw R1 22K 1000F 35V C520 R5011K MMBT5550 NPN Q500 .1C522 Z500 Z501Z502 1000F/25V C69 + 9.1v9.1v 5.1v B50KP12 cw + R3 10K R5 10K 15C50Kx2 P26.B 15C50Kx2 P26.A C13 .047

13、 250VAC S3.AS3.B S7.A S7.B S5.A S5.B .1 C1 + .1 C2 + 4.7K smt 1/4w R18 R22 0 Q21 n/u R23 0 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). QC6 speaker J7 S

14、PKR GND speaker J8 SPKR GND J9 SPKR GND a gnd H2A.A H2A.B H2A.C H2A.D input AGND E4 QC2 BLK QC7 QC4_SW QC3_SW 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 1000F 25V 1000F 25V C503B C504B + .1F C5 + CLEAN a gnd H5B.A H5B.B H5B.C H5B.D input H6B.A H6B.B

15、 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- CHASSIS 47004700 QC5 C99 C98 D33 D34 D1 D32 + + H7.A H7.B H7.C H7.D H7.E GRN RED RED YEL YEL V+: +43VDC V-: -43VDC C90 + 220 1.8K smt 1/4w R190 -24VDC 1.8K smt 1/4w R191 Z11Z12Z13 R15 560 BR120 30-42120 80-42120

16、 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 .033 A9.A A9.B A8.A A11.A A8.BA11.B 80Hz 82pF .047 1

17、0K 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.J A16.B 6 5 +7 5550 Q1 5401 Q2 R2 1K PHONESOUT CLIP1

18、 +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 FSW +15VAMP -15VAMP 24VJFETS H3A.E H3A.B H3A.F H3A.D H

19、3A.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 C521 22 + earth trans switch switch trans Q3 TIP31 QC1 trans QC2 trans B2 B3 B1 120VAC 1/2 120VAC 2/2 240VAC B B GEORGE DREYER GEORGE DREYER2ARL06 R11 330 Proto corrections: -15V via grounded, R257 grounded, Locational errors D11 moved up; added R11. R19 22K R20 47K sec sec R24 15K sec 39pF C3 sec RadioFans.CN 收音机爱 好者资料库