Carvin_30_32201 电路图 维修原理图.pdf

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1、NEGATIVE FEEDBACK: 12dB WITH 4 PW TUBES ON SET P11 FOR 100mA DC FILIMENTS FOR ACROSS STANDBY 12AX7 TUBE 10PF 500V IMPEDANCE FILAMENTS 1N4007 x4 VOLUME LINE OUT BIAS ADJ PRESENCE CABINET 350 VAC 350 VAC 25A25K 25A25K RETURN 47uF/63V VOICED 1N4007 2200F 2200F MASTER 6.3VAC 5A500K 1N40071N4007 2200F 22

2、00F SWITCH 250PF 1M POWER .0047 A1M B1MEG B100K 6L6GC 650Hz 220K 910 100K 910 0.22uF 4.7K .0047 100K 220K SEND 220K 100K 100K 560 4.7K2.2K350 100K 220K 220K BASS TREB TREB QC51 QC52 QC53 QC54 QC56 470K 100K 100K 220K 27PF QC2 280V S3.A GNDA 100K 1MEG 100K 100 100 455V 445V 415V 385V 300V 300V 195V 2

3、20K BIAS 5881 EL34 1/2W 1/2W STBY STBY 350V 350V QC3 GND 10PF SPK1 SPK2 630V V1.C V2.C V3.C V4.C V5.C V1.B V3.B V4.A V4.B V5.B V5.A 360K QC1 B1M B1M .0022 R33 R91 C73 R48 R20 R34 R92 R38 R47 R45 R51 R49 R46R44 C31 R41 R43 R50 C70 C44 C81C82 R56R57R55 220K 1/2W 22K 22K 10W ORG YEL GRN C29 MID MID 16

4、RED BRN BLU R93 22K P11 20K D12 D13D14 D15D16 R32 R40 BLK R54 C41 C30 R53 47K R52 P10 R39 R28 R27 D10 100K R21 P15 C46 D11 BRN C55 C20 BLK BLK BLK 1% R2 R1 R5 P8 P9 R4 R7 C3 C5 C6 P2 P3 P4 J3 J2 22F/45022F/450 S1 8 4 P6 J4 cw cw cw cw 1W1W B1 B1 B2 B3 B3 6V 6V cw C1 D1 D3D4 D2 cw 0V 5. 5. 5. 1% 6V 8

5、V 8V cw 1 + + 0 + C D D DD D 9 CP 9 + + E D ! ! + + 6 7 8 STANDBY J1 INPUT H1.A H1.E H1.B H1.H H1.G H1.F H1.I H1.D H1.C B2 R31 220K 220K R3 D C59 10 + R58 560p C47 560p C57 R82 *10uF N.P. C67 82p C68 10uF/160v C69 100K R81 100W TUBE SERIES R22 22K B6 B7 B6B7 * BRN GRN GRN RED RED Y/RD SWITCH ! C84 +

6、 82F/500v C83 + 82F/500v #1068 #1 C9 0.047uF/630V C48 N/U C52 + R68 47K Z1 1M 47K R84 VOLUME A1M P14 PRESENCE S4.A out CLEAN B GND B GNDB GNDB GND B GND B GND B GND 47K 15-02117 630V .047uF C62 GND LEGACY II 30-32201 80-32201 12340 World Trade Drive San Diego, CA 92128 (858) 487-1600 fax 521-6032 RE

7、VISED BY: APPROVED: DRAWN BY:DATE: DATE: ASSY. DATE: REV: REV: NO: PCB NO: cARVIN R129 R124 470K 220K 1/2W 2W C71 22F/450 + ! R130 220K 1/2W C CP 230V - 3A SLO BLOW 120V - 6A SLO BLOW AC JACK W/ FUSE 8VAC PRESENCE S4.B out B GND 4.7M S2 100 50 25 RMS POWER .022uF C2a 630v .022uF C22a 630v .01uF .002

8、2uF C21a .0022uF C58a C10aC36a .01uF C17a .022uF C4a .01uF C37a .01uF C39a 630v .022uF C42a 630v .022uF C43a 630v .047uF* C40a 630v FILAMENTS EL34 TUBE 4.7K 4.7K 4.7K 4.7K 350 350 350 350 QC31 QC33 QC32 100 100 R76 R72R70 R71 R74 R75 R73 R77 R78 R79 5W 5W 5W 5W 1% 1% EL34 (or 5881) V16.B V17.B V19.B

9、 V18.B 2 7 V18.A V19.A 3 5 8 4 1 3 5 8 4 1 V17.A 3 5 8 4 1 V16.A 3 5 8 4 1 S301 S302 S303 H3B.D H3B.A H3B.B H3B.C MOMENTARY CHANNEL SWITCHES FRONT PANEL F3 10A Slow Blow F2 10A Slow Blow B3 .047 C53 B11 B12 B13 B14 H7A.B H7A.A H7B.B H7B.A H7A.D H7B.CH7A.C H7B.D H6A.AH6B.A H6A.BH6B.B H6A.C H6B.DH6A.D

10、 H6B.C H6A.EH6B.E H6A.FH6B.F H6A.GH6B.G H6A.HH6B.H STD1 STD2 2N5550 Q1 K1.A 8 1 3 2 4 LEAD K1.B D7 .0022 C49 .0022 C50 D5 K2.A 8 1 3 2 4 BOOST R LEAD 5VDC 5VDC outIN VR5 7805 H12A.G H12A.A H12A.H H12B.A H12B.H H12B.G H2A.C H2A.B H2A.A H2A.D LD CLN LD BST R BST 5VDC H2B.C H2B.B H2B.A H2B.D CLN LD BST

11、 LD BST R DC 5V CLEAN D21 BOOST D22 LEAD D23 H11A.D H11A.C H11A.B H11A.A H11A.E H11A.F H11A.H H11A.G H11A.I H11A.J B.D B.C B.B B.A .E .H .G .F .I .J H3A.D H3A.A H3A.B H3A.C R BST R LEAD LD LEA LD CLN LD BST BST DC 5V R23 1K R24 1K R25 1K LD LEA 5VDC BST LD BST R CLN LD R42 1K STD3 BWN WHT RED GRN 16

12、 8 4 YEL BLK BWN + - - + OUTPUT TRANSFORMER (PHASE INVERTED) BST B GND 2N5550 Q2 + YEL GRN RED 14NOV08ERIC PETERSEN ERIC PETERSEN 120V UNITS ONLY JMP1 USED IN XFMR SWITCH CHASSIS YEL LIGHT IN SWITCH QC26 QC27 QC28 JMP1QC29 100K R100 PL1 L N EWHT 100K R94 5VDC 100K R94B N/U REVD: DC filaments on V4 (

13、no sec.) 0.047uF/630V C45 N/U 50Hz/60Hz BIAS STABLE CIRCUIT: D S5.B 120/240vac S5.A CHASSIS YEL LIGHT IN SWITCH QC6 QC7 QC9 PL2 L N E BLK QC11 WHT QC12 ORG QC13 RED QC14 POWER SWITCH QC5 POWER TRANSFORMER 15-10714B 15-10714B RED ORG BLK WHT RED ORG (120VAC WIRING) 230V - 3A SLO BLOW 120V - 6A SLO BLOW AC JACK W/ FUSE POWER TRANSFORMER 1. ADD C48 / C45 (0.047uF/630V). 3. R53 = 47K (not 22K). 2. R68 = 47K (not a jumper). E 03FEB10 revE: 1. QC9 CONNECT TO QC12. (NOT QC13) Channel 1 Blocked out Channel 2/3 Blocked out 收音机爱好者资料库 Ra d i o Fa n s .CN