Vieta-VT4120-pwr-sch 电路图维修手册.pdf

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1、6 7 5 6 7 2 3 1 1 2 3 2 3 1 1 2 3 2 3 1 2 3 1 5 32 56 4 7 B+ B- P 8 1 6 7 5 6 7 5 SCHEMATIC DIAGRAM VT4120 A1 00Friday, October 11, 2002 Title SizeDocument NumberRev Date:Sheetof RCA2A RCA2F 1 3 R105 10K 12 R101 2.2K 12 C101 4.7/35 + 12 C102 101C 12 R111 62K 12 R112 20K 12 R113 62K 12 R114 150K 12 C

2、111 333P 12 C112 333P 12 C113333P 12 R123 510 12 C121 683P 12 C122 683P 12 R124 510 12 R125 20K 12 IC1A 4558 3 2 1 8 IC3A 4558 3 2 1 8 IC5A 4558 3 2 1 8 VR4A 50KC4 31 2 VR4B 50KC4 64 5 IC1B 4558 5 6 7 4 IC3B 4558 5 6 7 4 IC5B 4558 5 6 7 4 VR4C 50KC4 97 8 VR4D 50KC4 1210 11 C201 4.7/35 + 12 R201 2.2K

3、 12 C202 101C 12 R205 10K 12 R211 62K 12 R212 20K 12 C211 333P 12 R213 62K 12 C212 333P 12 R214 150K 12 C213333P 12 C221 683P 12 R223 510 12 C222 683P 12 R224 510 12 R225 20K 12 VR2A 500K2 31 2 R121 15K 12 R131 510 12 R221 15K 12 R231 510 12 C301 4.7/35 + 12 R301 2.2K 12 C302 101C 12 R305 10K 12 R31

4、2 20K 12 R311 62K 12 C311 333P 12 R313 62K 12 R314 150K 12 C312 333P 12 C313333P 12 R321 15K 12 R331 510 12 R324 510 12 C321 683P 12 R323 510 12 C322 683P 12 R325 20K 12 R423 510 12 C422 683P 12 C421 683P 12 R421 15K 12 R425 20K 12 R424 510 12 R431 510 12 R432 150 12 R414 150K 12 R413 62K 12 C413333

5、P 12 C412 333P 12 C411 333P 12 R411 62K 12 R412 20K 12 R405 10K 12 C402 101C 12 R401 2.2K 12 C401 4.7/35 + 12 SW2B 4 6 5 SW3A 1 3 2 SW2A 1 3 2 SW3B 4 6 5 R103 10K 12 IC101A 4558 3 2 1 8 VR1A 50K2 31 2 IC2A 4558 3 2 1 8 R122 24K 12 C131 104P 12 R132 150 12 C132 473P 12 VR3B 50KC4 64 5 VR3D 50KC4 1210

6、 11 R222 24K 12 IC2B 4558 5 6 7 4 R203 10K 12 IC101B 4558 5 6 7 4 C231104P 12 R232 150 12 C232 473P 12 R322 24K 12 C331104P 12 C332 473P 12 R332 150 12 R403 12 R422 24K 12 C431 104P 12 C432 473P 12 R303 10K 12 SW5A 1 3 2 SW6B 4 6 5 SW5B 4 6 5 VR6A 50K2 31 2 VR2B 500K2 64 5 VR1B 50K2 64 5 VR6B 50K2 6

7、4 5 VR7B 500K2 64 5 VR7A 500K2 31 2 VR8A50KC4 31 2 VR8B 50KC4 64 5 VR9A 50KC4 31 2 VR9B 50KC4 64 5 VR8C50KC4 97 8 VR8D 50KC4 1210 11 VR9D 50KC4 1210 11 VR9C 50KC4 97 8 IC11A 4558 3 2 1 8 IC11B 4558 5 6 7 4 IC12A 4558 3 2 1 8 IC12B 4558 5 6 7 4 IC13A 4558 3 2 1 8 IC13B 4558 5 6 7 4 IC15B 4558 5 6 7 4

8、 IC15A 4558 3 2 1 8 RCA2B RCA2F 2 4 R406 10K 12 R306 10K 12 R206 10K 12 R106 10K 12 C404 471C 12 C304 471C 12 C204 471C 12 C104 471C 12 C103 47/16 + 12 C203 47/16 + 12 C303 47/16 + 12 C403 47/16 + 12 SW6A 1 3 2 R426 12K 12 IC14B 4558 5 6 7 4 IC14A 4558 3 2 1 8 R326 12K 12 VR3C 50KC4 97 8 IC4B 4558 5

9、 6 7 4 R226 12K 12 VR3A 50KC4 31 2 IC4A 4558 3 2 1 8 R126 12K 12 R407 1.2K 12 R207 1.2K 12 R107 1.2K 12 C423 33C 12 C323 33C 12 C223 33C 12 C123 33C 12 R307 1.2K 12 R108 10K 12 R109 220 12 R110 10K 12 R208 10K 12 R209 220 12 R210 10K 12 R308 10K 12 R408 10K 12 R142 1K 12 R143 10K 12 R241 10K 12 R242

10、 1K 12 C108 101C 12 C208 101C 12 C141 47/16 + 12 C242 10C 12 R246 10K 12 RCA1A RCA4 1 5 RCA1B RCA4 2 5 RCA1C RCA4 3 6 RCA1D RCA4 4 6 R102 680 12 R202 680 12 R302 680 12 R402 680 12 SW1A 4C2P 12 3 SW1B 4C2P 45 6 SW1C 4C2P 78 9 SW1D 4C2P 1011 12 SW4B 2C2P 4 6 5 SW4A 2C2P 1 3 2 D1 1N4001 12 R32 100 12

11、R33 100 12 13 46 25 R6 39K 12 C71103P 12 C10473P 12 TH 150K 12 R7 10K 12 R1210K 12 R1410K 12 R13 390 121 2 R15 3K 12 Q11 B1260 1 23 Q10 B1260 1 23 R111.2K 12 C5473P 12 D2 1SS355 12 IC21 KA7500BD 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 16 16 15 15 14 14 13 13 12 12 11 11 10 10 9 9 R20 1K 12 R211K 12 C7 104P

12、12 C4 220/16 + 12 R8 10K 12 D4 1SS355 12 R2 4.7M 12 C1 1/50 + 12 C3 10/16 + 12 R9 10K 12 Q1 A1037K1 23 DZ1 16V 12 C6 562P 12 C31 104P 12 R1851K 12 C35 1000/25 + 12 C34 1000/25 + 12 C33 1000/25 + 12 C32 1000/25 + 12 D11 FMG22S 2 3 1 R7122/1 12 R34 100 12 Q34 FQP50N06 23 1 Q35 FQP50N06 23 1 R35 100 12

13、 Q32 FQP50N06 23 1 Q33 FQP50N06 23 1 R30220 12 R31220 12 D9 1SS355 12 D8 1SS355 12 R98 1K/2 12 D23 1SS355 12 D24 1SS355 12 Q40 B1260 1 23 Q41 B1260 1 23 R40220 12 R41220 12 R42 100 12 R43 100 12 Q42 FQP50N06 23 1 Q43 FQP50N06 23 1 R44 100 12 R45 100 12 Q44 FQP50N06 23 1 Q45 FQP50N06 23 1 R7222/1 12

14、C72103P 12 C36 1000/25 + 12 R104.7K 12 C8 1/50 + 12 C98 474P 12 C61 102C 12 C62 102C 12 R4 10K 12 FUSE1 40A 12 FUSE2 40A 12 R97 3K 12 R251 100 12 R151 100 12 R155 20K 12 R255 20K 12 R156 1K 12 C156 271C 12 R158 1K 12 R258 1K 12 R256 1K 12 R901 100K 12 C163 22/16 + 12 C263 22/16 + 12 R181 2.2K/0.5 12

15、 R182 100K 12 R282 100K 12 R281 2.2K/0.5 12 R189 33/3 12 L101 CHOKE 12 L201 CHOKE 12 R289 33/3 12 C288 105M 12 C188 105M 12 R168 470K 12 R271 0.05/3 12 R270 0.05/3 12 R170 0.05/3 12 R171 0.05/3 12 R911100K 12 Q911 2N7000 G D S 1 2 3 R913 100K 12Q912 2N7000 G D S 1 2 3 C256 151C 12 D155 1SS355 12 D25

16、5 1SS355 12 R169 470K 12 R268 470K 12 R269 470K 12 R254 470K 12 R253 470K 12 R153 470K 12 R152 51K 12 R252 51K 12 R262 8.2K 12 R159 1.1K 12 R157 1.1K 12 R257 1.1K 12 R259 1.1K 12 C152 221C 12 C154 221C 12 C254 221C 12 C252 221C 12 D901 1SS355 12 C153 104C 12 R154 470K 12 C253 104C 12 C164 104M 12 C1

17、89 224M 12 C289 224M 12 D152 EL1Z 12 D252 EL1Z 12 R266 10/0.5 12 R16710/0.5 12 R267 10/0.5 12 Q971 7805 3 2 1 LED LED 12 R166 10/0.5 12 D153 EL1Z 12 R163 470/0.5 12 R263 470/0.5 12 D253 EL1Z 12 C151 4.7/50 + 12 C181 0.22/50 + 12 C251 4.7/50 + 12 C281 0.22/50 + 12 C911 22/16 + 12 Q121 C1027 1 23 Q221

18、 C1027 1 23 R183 1K/0.5 12 R283 1K/0.5 12 VR101 5KPOT 31 2 VR201 5KPOT 31 2 D902 1N4007 12 R260 13K 12 R16513K 12 R265 13K 12 R160 13K 12 R902 150K 12 U101TA3020A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2425 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 48 47 46 45 D15

19、4 1SS355 12 D254 1SS355 12 C159 104C 12 C259 104C 12 C258 104C 12 C157 104C 12 C257 104C 12 D150EL1Z 12 D151EL1Z 12 C262 101C 12 C260 47/25 + 12 C160 47/25 + 12 R903 270K 12 C971 100/25 + 12 R972 1K/0.5 12 DZ2 16V 12 C604 100/16 + 12 Q31 TIP42C 1 23 Q30 TIP41C 1 23 R603 10K 12 R604 1K/0.5 12 R601 10

20、K 12 R602 1K/0.5 12 C602 100/25 + 12 C601 100/25 + 12 C603 100/16 + 12 RELAY1 RELAY2 1 2 3 4 5 6 RELAY2 RELAY2 1 2 3 4 5 6 D250 EL1Z 12 D251 EL1Z12 C264 104M 12 C351 4.7/50 + 12 R351 100 12 C352 221C 12 R352 51K 12 VR301 5KPOT 31 2 R353 470K 12 C353 104C 12 R358 1K 12 R360 13K 12 R359 1.1K 12 R356 1

21、K 12 R357 1.1K 12 C356 271C 12 C363 22/16 + 12 R363 470/0.5 12 C364 104M 12 D351EL1Z 12 D350EL1Z 12 C357 104C 12 R354 470K 12 C354 221C 12 R355 20K 12 C359 104C 12 R456 1K 12 R457 1.1K 12 R459 1.1K 12 C456 151C 12 R460 13K 12 R455 20K 12 C454 221C 12 R452 51K 12 R451 100 12 C452 221C 12 C451 4.7/50

22、+ 12 R454 470K 12 C458 104C 12 C453 104C 12 R453 470K 12 VR401 5KPOT 31 2 R462 8.2K 12 C462 101C 12 C459 104C 12 D450 EL1Z 12 D451 EL1Z 12 C464 104M 12 C463 22/16 + 12 R463 470/0.5 12 R923 270K 12 R921 100K 12 D921 1SS355 12 R922 150K 12 R369 470K 12 D353 EL1Z 12 R36710/0.5 12 R36513K 12 R371 0.05/3

23、 12 R370 0.05/3 12 L301 CHOKE 12 R381 2.2K/0.5 12 R368 470K 12 D352 EL1Z 12 R366 10/0.5 12 C360 47/25 + 12 C460 47/25 + 12 C457 104C 12 R465 13K 12 C381 0.22/50 + 12 R382 100K 12 D355 1SS355 12 D455 1SS355 12 R482 100K 12 R468 470K 12 D452 EL1Z 12 R466 10/0.5 12 R470 0.05/3 12 R471 0.05/3 12 D453 EL

24、1Z 12 R467 10/0.5 12 R469 470K 12 C389 224M 12 R389 33/3 12 C388 105M 12 Q321 C1027 1 23 R383 1K/0.5 12 D354 1SS355 12 D454 1SS355 12 R483 1K/0.5 12 Q421 C1027 1 23 R481 2.2K/0.5 12 C481 0.22/50 + 12 L401 CHOKE 12 C488 105M 12 R489 33/3 12 C489 224M 12 U201TA3020A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

25、 16 17 18 19 20 21 22 23 2425 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 48 47 46 45 R458 1K 12 13 46 25 IC22A NJM4558 3 2 1 8 R914 1M 12 Q913 2N7000 G D S 1 2 3 R915 100K 12 R916 51K 12 Q112 STW34NB20 23 1 Q111 STW34NB20 23 1 Q211 STW34NB20 23 1 Q212 STW34NB20 23 1 Q312 STW34NB20 23 1

26、 Q311 STW34NB20 23 1 Q411 STW34NB20 23 1 Q412 STW34NB20 23 1 9 8 7 6 3 2 1 4 5 D5 1SS355 12 R5 10K 12 IC22B NJM4558 5 6 7 4 R19 1K 12 R019 1K 12 R01851K 12 C010473P 12 R0104.7K 12 R0111.2K 12 C05 473P 12 R01210K 12 R01410K 12 R013 390 12 C06 562P 12 R015 3K 12 C07 104P 12 IC021 KA7500BD 1 1 2 2 3 3

27、4 4 5 5 6 6 7 7 8 8 16 16 15 15 14 14 13 13 12 12 11 11 10 10 9 9 R22 1K 12 R231K 12 D12 FMG22R 2 3 1 C64 102C 12 C63 102C 12 C42 2200/50 + 12 C44 2200/50 + 12 L3 CHOKE 12 L4 CHOKE 12 C41 2200/50 + 12 C43 2200/50 + 12 L1 12 L2 12 R247 180 12 R248 180 12 R147 180 12 R148 180 12 C147 393P 12 C148 203P

28、 12 C247 393P 12 C248 203P 12 R141 10K 12 R245 10K 12 C241 47/16 + 12 R243 10K 12 C347 393P 12 R348 180 12 C348 203P 12 R347 180 12 R343 10K 12 R342 1K 12 R341 10K 12 C447 393P 12 R448 180 12 C448 203P 12 R447 180 12 R445 10K 12 R446 10K 12 C442 10C 12 R443 10K 12 R442 1K 12 C441 47/16 + 12 R441 10K

29、 12 C341 47/16 + 12 IC6B NJM072M 5 6 7 4 IC6A NJM072M 3 2 1 8 IC7B NJM072M 5 6 7 4 IC7A NJM072M 3 2 1 8 IC8A NJM072M 3 2 1 8 IC16B NJM072M 5 6 7 4 IC16A NJM072M 3 2 1 8 IC17B NJM072M 5 6 7 4 IC18A NJM072M 3 2 1 8 IC17A NJM072M 3 2 1 8 R912 1K 12 D911 1SS355 12 D912 1SS355 12 Q981 C4467 1 23 R983 5.1K 12 C981 100/25 + 12 C982 100/25 + 12 DZ3 11V 12 R982 1K/0.5 12 RadioFans.CN 收音机爱好者资料库