Carvin_valvemaster 电路图 维修原理图.pdf

25V 8 = 25V NO TANK LOAD 220mV INPUT 1K=25V 8 30mV 1K Hz = 28V 8 60mV 3K = 25V 8 12mV 1K = 25V 8 SET P11 FOR 100mA FOOTSWITCH FS22 DC FILIMENTS FOR PULL - MID BOOST IN 100W POSITION ACROSS STANDBY -3dB 550Hz CHANNEL 2 CHANNEL 1 .047/600V +3V RELAY VOLUME 1 VOLUME 2 BIAS ADJ 30-77703 70-00927 PULL POT CHANNEL 5A500K 15A25K 15A25K RETURN 47/63V REVERB SLEEVE REVERB 1N40071N4007 1N40071N4007 1N4007 2200F 2200F 1N4745 1N4745 1N4745 1N4745 2200F REVERB 2200F JUMPER 250PF 560PF B100K DRIVE .0022 330PF H1B-3 B1MEG .0022 H10-1 H10-2 H10-3 H2A-1 H2A-2 H2B-1 H2B-2 H1A-3 B100K B1MEG B1MEG H3A-3 V1,V2 H4A-2 H4A-1 H4B-1 H4B-2 180PF B250K .0022 .0022 .0047 560PF B100K .0022 560PF P1.S2 P1.S1 P6.S1 P6.S2 1 AGC .001 82PF V1.A V2.A V1.B V2.B 400V 400V 400V V3.B 220K 220 .047 2.2M 220K 1.5K 150K .001 .033 100K 220K V4.B V4.A V3.A 400V 400V 400V 400V V5.B V5.A 2.2M .047 220K 560 220K 560 220K .001 100K 100K .047 560 4.7K2.2K350 100K .047 .047 220K 220K 4.7K 4.7K 4.7K 4.7K 350 350 500V 500V 500V 500V BASS TREB BASS TREB 400V .047 QC6B QC5B 500V .047 100K QC6A QC5A 1.5K 2.2M 100K 27PF L1-A L1-B GNDA 220K GNDB 280V S3-A 220K 220K RING .001 4.7K 560 100K 1MEG 250V 185V 160V 185V 400V .001 100K 100 100 100 100 QC16 455V 445V 415V 385V 300V 300V 190V 195V .047 400V 100K100K .001 220K .01 10K TIP R33 R14 R17 R15 R18 R21 C14 C15 C16C18 C24 C25 C26 R48 R16 R22 47K 47K R25 R35 R34 R37 R36 R38 R47 R45 R51 R49 R46R44 C33 C37 C36 C35 C41 R41 R42 R43 R50 R60 R61 R64 R65 C46 C48C49 C50C51 C43 C45 C44 R56 R57 R55 R67 47K 22K 22K 10W C30 MID MID C17 S11 S10 C39 CH1 CH2 C34 P11 20K 2/2 C52 D12 D13D14 D15D16 C40 R31 C29 GND R40 QC1 QC2 QC4 QC3 4,5 C23 C47 R54 C42 C31 R53 22K R32 R52 R13 R12 C12 C13 N/U N/U C27 P10 C38 R39 R28 R27 D10 C19 C21 C20 R20R19 C22 R23 22K C28 C11 N/U C10 R10 R11 R24 15K N/C N/C N/C N/C C54N/U N/UN/U N/U N/U N/U 1K 0 C2 C7 R8 R2 D5 D1 D2 R1 R3 R5 P5 P7 P8 P9 R4 R7 R6 C3 C4 C5 C6 C9 C8 P2 P3 P4 1010 10 J3 222222 22 5W 5W 1W cw cw cw cw cw cw 1W 1W 10 cw cw B1 22 B4 B4 10 D3 D4 6V cw 16 6V V6 V7 V8 V9 6V 13 11 B5 F4 B6 C1 10 6V D6 D8D9 D7 R9 P1 P6 4 6 1 2 3 1 2 3 6 7 8 6 7 8 6 7 8 6 7 8 1 2 3 1 2 3 + 6 7 8 1 2 3 + C D D D D D D D C + + 9 8 1 9 + 3 5 8 4 1 3 5 8 4 1 3 5 8 4 1 3 5 8 4 1 D E C + 1/2W 1/2W J1 INPUT 1/2W 1/2W 1/2W 1/2W 收音机爱好者资料库 Ra d i o Fa n s .CN R6 to 1K R37 to 560 C37 to N/U R8 to 220K C6 to .0047 D21 to N/U R17 to 560 C8 to N/U D20 to N/U 40dB RISE FROM 1K TO 10K MIDS OFF - BASS TREBLE FULL 2. ALL CAPACITORS IN MICROFARADS, EXCEPT AS NOTED. 5. ADDED AS SECONDARY OPERATION ARE DENOTED . 3. ALL DIODES ARE TYPE 1N4003, EXCEPT AS NOTED. 4. ALL OPEN GROUNDS ARE A ,EXEPT AS NOTED. 1. ALL RESISTORS ARE 1/4W, EXCEPT AS NOTED. 9.5dB 10K 2.2K IN SERIES WITH .01 FEEDBACK 26dB RISE FROM 1K TO 10K ALL TONE FULL CANT GET ANY SIGNEL FROM V5 TO V6-V9 R30 to 2.2K C33 to 180PF (Note: less gain from both channels) SQUARE WAVE OSCILLATOR AT SPKR OUT P3, P8, P14, P15 from A25K to A15K NOTES UNLESS OTHERWISE SPECIFIED. BIAS SETS OK FOR POWER TUBES BUT NO AMP FEEDBACK - EXTREME GAIN SELECT SWITCH DOES NOT WORK- R24 to 15K C16 to 10F Assembly Revision History DRIVE STARTS TO CLIP 5-23-95 Rev (C) PCB 8-22-95 Rev (C) PCB ALL TUBE GUITAR AMP NO VOLTAGE ON RELAY OUTPUT TRANSFORMER PIN 1&2 REVERSED CH1 VOL 10 - C7 INSPECTION FOR PIN 1 REVERSED SOLDER BRIDGE SOLDER BRIDGE SOLDER BRIDGE GAIN / OUTPUT CH1 VOL 2 VALVE MASTER 3A SLOW BLOW REVERB DRIVE CH1 PRESENCE -3dB 300Hz 8dB 10K Hz 4-PW. TUBES H3B 1 TO 4 2-PW. TUBES REVERB REC.25VAC 8 PCB Rev (C) FOOTSWITCH 12AX7 TUBE CLOSED=CH2 5mm x 20mm H3A1 TO 4 PRESENCE 1PRESENCE 2 25VAC 8 28 VAC 8 IMPEDANCE FILAMENTS FILAMENTS EL34 TUBE C. McEUEN C. McEUEN +3V RELAY 9dB 10K STAND BY 30-77701 LINE OUT 30-77707 30-77703 30-77705 30-77708 15-02116 30-77701 OPEN=CH1 V3,V4,V5 1/2 POW. INTERNAL 80-77701 FUNCTION ALL FULL 15-10600 30-77706 (I to J) CABINET CHANNEL 350 VAC 350 VAC PROBLEM H2B1&2 H2A1&2 H2B1&2 SPEAKER 14DEC94 OUTPUT VOICED SWITCH (240V) 4.6VAC 3.2VAC 3.2VAC OUTPUT EL34 / 180PF LEVEL POWER V6-V9 H1B-2 H8B-1 H8B-2 H1B-1 .0047 QC34BQC34A H1A-2 H8A-1H8A-2 H1A-1 H7A-1H7A-2 H7B-1H7B-2 H3B-4 H3A-1H3B-1 H3A-4 H3B-3 H3A-2H3B-2 QC13B INPUTFREQ. QC13A H9B-1 H9B-2 H9A-1 H9A-2 SEND 350 350 350 350 SPK1 SPK2 QC31 QC33 QC35 QC36 1/2W H5-1 H5-2 LAMP 470K QC10 QC11 15A25K 1AGC H6-1H6-2 10SB QC32 5.9A 5.9A L2-B FUSE .047 600V 1AGC QC14 Y/RD TONE .3mV 100K 100 100 Y/RD L2-A 2.2K 15A25K .022 3.5V FULL 5881 30mV 60mV 18mV .01 R72 C73 C70 R25 R66 R73 R62 R70 R63 C72 R67 10K 16ORG YEL GRN 4/5 16 RED PL1 OFF RED BRN BLU R74 22K QC8 QC7 10 ORG YEL GRN P14 1/2 R29 D20 D21 BLK B/W ORG O/W QC9 GRN GRN BLKBLK TIP GND C53 RED CH1 CH2 CH2 R68 R69 REDBLK B/W ORG O/W GRN GRN RED 22K R26 C32 R30 P15 R71 10K C71 BRN N/U N/U (J) (K) (L) 1K J2 T2 S7 8 4 S1 8 4 S2 5W 5W 5W 5W J4 J5 S8 B1 B2 B2B3 B3 cw F1 F2 13 11 S6 F3 OR 1K 1K 1K B5 B6 T1 B6 16 .1 cw 3K 0 2 7 9 N E L 9 1 8 4 6 * C R3, R7, R15, R18, R38, R42 from 220K, 1% to10-7-95 Rev (C) PCB 1/2W, 220K 7Oct95 12340 WORLD TRADE DR. SAN DIEGO, CA 92128 (619) 487-1600 FAX 487-6629 REVISED BY: APPROVED: DRAWN BY: DATE: DATE: ASSY. DATE: ARVIN REV: REV: NO: PCB NO: C G 收音机爱好者资料库 Ra d i o Fa n s .CN