Carvin_sx300camp 电路图 维修原理图.pdf

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1、82pF R503 C510 R514 R504 Q3 V+ V- 5401 Q6 5550 Q8 R520 .33 R521 .33 5401PNP Q4 5401PNP D506 D505 Q5 5401PNP R513 R508 2.2K R506 47K V- R507 2.2K R510 R519 5550 Q7 R509 C508 22 + 1k470 E1 E2 E3 E4 E5 E6 R512 R505 1k .01F .0022 A515.B R522 R524 C512D510 R525 R523 R530 R527 R528 D511 C513 R532 R531 6 !

2、- 5 + 7 22F C514 R540 R545 R546 R541 D513 -15V-15V 47k 15K 22K 680 1N914 33k CHASSIS QC1 .01 .01 R501 C501 C503 R502 C502 220pF 47k 2.2k 33k 1k 100 2.2k 22k 47k 47k 100 4.7k K1 Q10 R535 R538 R536 C515 + -15V 10k 10k 6.8k 2.2k 22k 10k 10k 5401PNP 22 THERMAL R548 0 12340 World Trade Drive San Diego, C

3、A 92128 (858) 487-1600 FAX 487-6629 REVISED BY: APPROVED: DRAWN BY:DATE: DATE: ASSY. DATE: ARVIN REV: REV: NO: PCB NO: C 3. ALL CAPACITORS IN MICROFARADS, EXCEPT AS NOTED. 2. ALL DIODES ARE TYPE 1N914, EXCEPT AS NOTED 1. ALL GROUNDS ARE A EXCEPT AS NOTED. NOTES UNLESS OTHERWISE SPECIFIED 4. ALL RESI

4、STORS IN OHMS. 6. LABEL B INDICATES A JUMPER WIRE. 47K A515.A 2 3 + 1 8 4 J2 EFF RETURN -15V +15V +15V +15V J11 LINE QC2 NEUTRAL QC3 D16 D14 D17 D15 D21 D20 D18 D19 L2 L1 C27 + C30 C33 C32 0.047F 250 VAC C41 + 220F 50V C31 + C40 + C39 + 1000F 25V C38 + C35 C34 C37 + C36 + TR1T R40 R601 R41 R42 1 V-

5、V+ Z1 2 3 4 5 6 12 7 8 9 10 11 C42 + C43 + C44 + C45 + D22 D23 R45 -24V R46 R47 OP2 Z2 B3 -24V Q2 R526 33k OUTPUT OUTPUT Q9 Q11 R517 R516 R515R533 470 -15V +15V +15V R544 0 E19 E20 E21 E23 E22 Pin 1 Viper Pin 2 Viper Pin 3 Viper Pin 5 Viper Pin 4 Viper Z4 -15V +15V +15V -15V C28 SYSTEM MASTER D4 100

6、0F 25V C46 + 600V 1A L4 C47 + C48 + 22 Q1 Q12 R553 R549 R552 R555 LINE OUT/HEADPHONE AMP 10K 33K 1K 47 C5160.0047F POWER SUPPLY Q13 Q14 R554 R550 R551 R556 +15V -15V 10K 33K 1K 47 C517 0.0047F J6 LINE OUT EXT. SPKR Q15 7805 C624 0.047F LINE OUT HEADPHONES LINE OUT HEADPHONES A11.A 2 3 + 1 8 4 -15V +

7、15V A11.B 6 !- 5 + 7 Q16 Q17 +15V C12 C13 -15V 22F 22F .047 .047 + + 7815 7915 L5 L6 Z8 9.1V SMT Z9 9.1V SMT Z10 9.1V SMT 39pFC509 680 270 0 R542 150 R547 470 N/U .0047 Q1 Q12 120F C90 + 180pF C6100.1 22 7.5V 16V Fsw107kHz 100 3.9K C511 0.1F C518 0.1F C519 0.1F +15V -15V R518 470 R511 100 SECONDARY

8、REGULATED 20.5VDC D503 R539 1.0M D509 Q18 5401PNP 220pF C507 D512 R543 220 TURN OFF R529 1M H1B.A H1B.B H1B.C H1B.D VDC OUT AGND VDC OUT +5VDC H1B.E H1B.F H1B.G H1B.H N/U N/U MAIN IN GND F2 L9 1 2 34 L10 L11 C5 C6 C700 C708 300H 300H CHASSIS QC9 E26 E27 5550 Q19 R534 1k R537 33k Z501 9V SMT J5.A J5.

9、B J5.C A.J. Ashley PHONES J3 MAIN SPKR 4 OR 8 16 OHMS 5. ALL OP AMPS ARE TYPE 4565, EXCEPT AS NOTED. DSP CHANNEL 910 910 22 R44 R48 R54 R49 C52 + C53 + C54 + C55 + Z39V Z5 13V C56 + 120F H3.A H3.B H3.C H3.D H6.A H6.B H6.C H6.D S4 B1 100K100K NOTE: B1 IS CUT, AND B2 INSTALLED FOR 240V. B2 IS CUT, AND

10、 B1 INSTALLED FOR 120V ONLY. LEFT IN J4 12 C505 LEFT IN B2 +5V PWR +5V PWR C505B + N:80 EFF SND PUT GND SPKR 1 SPKR 1 H4.E H4.C H4.A H4.B H4.D H4.F PUT GND EFF RET H4.G H4.H E OUT DPHONES EFF SND OUTPUT GND SPKR 1 SPKR 1 H7.E H7.C H7.A H7.B H7.D H7.F OUTPUT GND EFF RET H7.G H7.H LINE OUT HEADPHONES SX300 30- 03300 80- 03300 C B 10DEC02 收音机爱好者资料库 Ra d i o Fa n s .CN