Fender_vibrasonic 电路图 维修原理图.pdf

“CUSTOM” VIBRASONIC AMP p/n 021-5200-000 (120V) SERVICE MANUAL CONTENTS: Notices Specifications Theory of operation Parts lists: PCB assembly Chassis assembly Cabinet assembly Footswitch assembly Miscellaneous Schematics/diagrams Fender Musical Instruments Corp. 7975 North Hayden Road Scottsdale, AZ 85258 收音机爱好者资料库 Ra d i o Fa n s .CN “CUSTOM” VIBRASONIC (This is the model name for warranty claims) SERVICE MANUAL NOVEMBER 1995 IMPORTANT NOTICE: The information contained herein is CONFIDENTIAL and PROPRIETARY to Fender Musical Instruments Corp. It is disclosed solely for use by qualified technicians for purposes of equipment maintenance and service. It is not to be disclosed to others without the expressed permission of Fender Musical Instruments Co. All specifications subject to change without notice. For warranty repair service, only Fender specified part numbers are to be used. It is recommended they also be used for post-warranty maintenance and repair. Parts marked with an asterisk (*) indicate the required use of that specific part. This is necessary for RELIABILITY and SAFETY requirements. DO NOT USE A SUBSTITUTE! A coded naming convention is used in the description of certain parts. The codes and what they mean are as follows: CAPACITOR CODES HARDWARE CODES CAP AE=Aluminum ElectrolyticBLX=Black Oxide CAP CA=Ceramic AxialCR=Chrome Plated CAP CD=Ceramic DiskHWH=Hex Washer Head CAP MPF=Metalized Polyester FilmM=Machine Screw CAP MY=MylarNI=Nickel Plated CAP PFF=Polyester Film/FoilOHP=Oval Head Phillips PB=Particle Board RESISTOR CODESPHP=Pan Head Phillips PHPS=Pan Head Phillips Sems RES CC=Carbon CompSMA=Sheet Metal A Point RES CF=Carbon FilmSMB=Sheet Metal B Point RES FP=Flame ProofSS=Stainless Steel RES MF=Metal FilmTF=Thread Forming RES WW=Wire WoundZI=Zinc Plated 收音机爱好者资料库 Ra d i o Fa n s .CN “CUSTOM” VIBRASONIC SPECIFICATIONS Product Release No.:PR 186 (This is not a model number) Part Number:120V Version :021-5200-000 Input impedance:Input 1, both channels1m Input 2, both channels132k Power Output:85 Watts RMS minimum 5% THD Rated load impedance:4 Speaker Complement:(1) 15” “Special Design” (p/n 049135) Dimensions:Height:22(55.9 cm) Width: 26 5/32(66.4 cm) Depth: 10 3/8(26.4 cm) Weight:71 lbs.(32.3 kg) Product specifications are subject to change without notice 收音机爱好者资料库 Ra d i o Fa n s .CN “CUSTOM” VIBRASONIC THEORY OF OPERATION STEEL CHANNEL J1 is the high sensitivity input and J2 is the low sensitivity input. The input is fed to V1A, which proveds a gain of about 42. The output from V1A drives the Treble (R7), Mid(R9), and Bass(R7) tone controls, then feeds the Volume control (R10). When engaged, the SWEET switch connects C5 to the wiper of the VOLUME control. This provides a boost in the high frequencies. The “Sweet” feature is most noticeable at lower volume settings. The signal then feeds to V1B, which provides a gain of about 66. GUITAR CHANNEL J3 is the high sensitivity input and J4 is the low sensitivity input. V2A contains the FAT switch which boosts the gain mostly at lower and mid frequencies. V2A drives the tone controls, and the Volume control (R21) feeds V2B. V1B and V2B share the same cathode resistor (R23) and bypass capacitor (C11). The output of the Steel channel (V1B pin 6) sums with the output of the GUITAR channel at V2B pin 6. From that point the signal follows two paths. One to the reverb drive stage (V3). The other through R32 to summing amp V4B. REVERB V3 (12AT7) provides a gain of about 33 to drive the reverb transformer. V4A is the Reverb recovery or sense stage. The Reverb control (R29) determines the amount of reverb signal that is summed with the dry signal at V4B. Via the footswitch, the Reverb can be disabled by grounding the signal at the node between R30 and R74. VIBRATO V5A is a low frequency oscillator. The Speed control (R56) varies the oscillation frequency. V5B is the Neon Lamp driver. The lamp flashes faster or slower based on the position of the Speed control (R56). The brightness of the neon bulb is sensed by the LDR (Light Dependent Resistor). The LDR connects to the Intensity control (R64) which varies the amount of low frequency modulation applied to the input of the Phase Inverter(V6). POWER AMPLIFIER The output from V4B feeds the Phase Inverter(V6), which is a classic style split-load type, used without feedback. The output tubes (5881/6L6WGC) are arranged in a push-pull configuration that will produce 85 watts minimum into a four(4) load at 5% THD. PARTS LIST PRINTED CIRCUIT BOARD ASSEMBLY QTY PART # DESCRIPTION REFERENCE DESIGNATION 1049266PCB ASSY CUSTOM VIBRASONIC ALLV(STUFFED) 3037805CABLE RIBBON 6CKT 2-1/4” 1031069CAP AE RDL 10uF 100v 20%C37 5028465CAP AE RDL 22uF 25V 20%C6 C11 C14 C27 C28 1036954CAP AE RDL 22uF 63V 20%C36 3024819CAP AE AX 22uF 500v 20%C32 C33 C34 1031040CAP AE RDL 100uF 100V 20%C35 2013638CAP AE AX 200uF 285V 20%C30 C31 2025979CAPCD 50pF 1KV 10%C5 C10 1031780CAP SLVR MICA 150PF 300VC7 1007029CAPCD 220pF 1KV 10%C38 1020917CAPCD 250pF 1KV 10%C2 1020842CAPCD 500pF 1KV 10%C13 1047065CAP PFF RDL .0015uF 100VC16 1037666CAP PFF .001 uF 400v 10%C20 2024823CAP MPF RDL .01uF 400V 10%C25 C26 “CUSTOM” VIBRASONIC PRINTED CIRCUIT BOARD ASSEMBLY (CONT) QTY PART # DESCRIPTION REFERENCE DESIGNATION 2024833CAP MPF RDL .022UF 400V 10%C12 C24 2024835CAP MPF RDL .022UF 630V 10%C9 C40 1024845CAP MPF RDL .047UF 400V 10%C4 1024846CAP MPF RDL .047UF 630VC8 1024853CAP MPF RDL .1UF 250V 10%C21 2024854CAP MPF RDL .1UF 400V 10%C3 C19 2024855CAP MPF RDL .1UF 630V 10%C22 C23 2037596CONTROL SNAPIN 1M 30AR10 R21 (VOLUME) 1037601CONTROL SNAPIN 3M 30CR56 (SPEED) 1028421CONTROL 100 D FOJ SCREW ADJR69 (HUM BALANCE) 1017502CONTROL 10K B SCREW ADJR71 (BIAS ADJUST) 2037598CONTROL SNAPIN 10K 10AR9 R20 (MID) 1037602CONTROL SNAPIN 50K 30CR64 (INTENSITY) 1037600CONTROL SNAPIN 100K BR29 (REVERB) 2037599CONTROL SNAPIN 250K 10AR8 R19 (BASS) 2037597CONTROL SNAPIN 250K 30AR7 R18 (TREBLE) 1064089DIODE 1N4003 200PRV 1AMPCR5 4026730DIODE 1N4006/1N5062 800PRV 1ACR1 CR2 CR3 CR4 15026000FASTON TAB .187CP17 THRU CP31 16025802FASTON TAB .250CP1 THRU CP16 3027413HEADER .1” CTR 6 CIRCUITP1 P2 P3 4037117JACK PHONE PCB MONO CLOSED CKTJ1 J2 J3 J4 (INPUTS) 1025933JACK PHONO DUAL PC MTGJ8 (REVERB PAN CONN.) 1037836OPTOISOLATOR ASSY 65 TWINOP1 1037628PCB 65 TWIN REVERB(RAW PCB) 1024937RES CF W 10 5%R73 2024964RES CF 1/4W 820 5%R23 R41 4024969RES CF 1/4W 1.5K 5%R5 R16 R26 R27 R46-49 1024972RES CF 1/4W 2.7K 5%R60 1024981RES CF 1/4W 10K 5%R75 5024995RES CF 1/4W 68K 5%R1 R2 R12 R13 R77 1024996RES CF 1/4W 82K 5%R74 1029613RES CF 1/4W 91k 5%R55 2024997RES CF 1/4W 100k 5%R6 R17 4025059RES CF 1/4W 220K 5%R31 R35 R44 R45 1025060RES CF 1/4W 270k 5%R76 1025063RES CF 1/4W 390k 5%R30 7025069RES CF 1/4W 1 1M 5%R3 R14 R24 R37 R38 R57 R58 1025074RES CF 1/4W 1.8M 5%R59 1025077RES CF 1/4W 3.3M 5%R32 1025084RES CF 1/4W 10M 5%R63 1028861RES CF 1/2W 27K 5%R70 1037665RES CF W 27K 5%R72 8025116RES CF 1/2W 100K 5%R4 R11 R15 R22 R28 R33 R61 R62 3025117RES CF 1/2W 220K 5%R54 R65 R66 3037664RES FP 1W 1K 5%R67 1027347RES CF 1W 2.2K 5%R25 1036469RES FP 1W 4.7K 5%R68 1027350RES CF 1W 22K 5%R36 1027352RES CF 1W 91K 5%R43 1027353RES CF 1W 100K 5%R42 2037835SWITCH SLIDE SPSTS4 S5 1028503THERMISTOR 10 5A C60-11THI CHASSIS ASSEMBLY QTY PART # DESCRIPTION REFERENCE DESIGNATION 1049516CHS ASSY 120V CUST. VIBRASONIC(COMPLETE CHASSIS) 1037582CHS 65 TWIN REVERB(RAW) 7018022BUSHING SNAP 5/16 X 17/32 BLK 1026038BUSHING STRAIN RELIEF(100V/120V AC CORD) “CUSTOM” VIBRASONIC CHASSIS ASSEMBLY (CONT) QTY PART # DESCRIPTION REFERENCE DESIGNATION 1010401BUSHING STRAIN RELIEF(220V/240V AC CORD) 1026541CABLE ASSY PWR W/.50 TAB 120V(POWER CABLE 120V ONLY) 1048463CABLE ASSY PWR .250 TAB 100V(POWER CABLE 100V ONLY) 1033331CABLE ASSY PWR 220/240V(POWER CABLE 230V ONLY) 1038602CABLE ASSY PWR AUST .250 TAB(PWR CABLE AUSTRALIA 240V) 1040993CABLE ASSY PWR 5A U.K. .250 TAB(P CABLE UNITED KINGDOM 240V) 1036486CHOKE FILTERL1 1022491CLAMP CABLE SCRW MNT 1028421CONTROL 100 SCREW ADJ.R69 (HUM BALANCE) 1017502CONTROL 10K 20% SCREW ADJ.R71 (BIAS ADJUST) 1037854COVER CAPACITOR 1013737FUSE TD 1-1/4X1/4 250V 4AF1 (100V/120V) 1013115FUSE TD 20MMX5MM 250V 2AF1 (220V/240V) 1036702FUSEHOLDER 3AG FINGER GRIPXF1 (100V/120V) 1036703FUSEHOLDER 5MM FINGER GRIPXF1 (220V/240V) 1021550JACK PHONE TIP SHUNT 12AJ5 (SPEAKER OUT) 1021956JACK PHONE OPEN CIRCUIT 11J6 (EXT. SPEAKER OUT) 1013043JACK PHONE STEREO 12BJ7 (FOOTSWITCH) 11024604KNOB BLACK W/ WHITE STAMP 14000 1027887LUG SOLDER 3/8(HUM BAL. WIPER GND) 5016352NUT HEX 3/8-32X3/32 TK NI(HUM BIAS, OUTPUT, FTSW) 8022004NUT KEPS #8-32(XFMR MOUNTING) 1049115PANEL FRONT VIBRASONIC 1049116PANEL REAR VIBRASONIC 1032219PILOT LIGHT COLLAR 1021642PILOT LIGHT #47 1021741PILOT LIGHT HOLDER 1031625PILOT LIGHT NUT 1036595PILOT LIGHT LENS JEWEL RED 4024969RES CF 1/4W 1.5K 5%R46-49 (PWR TUBE SCOKETS) 4021402RES CC 1W 470 10%R50-53 ( PWR TUBE SOCKETS) 4027979SCREW M 4-40X1/4 PHP NI(SLIDE SWITCHES) 14028937SCREW TF 6-32X5/8 PHP ZI(MAIN PCB) (CAP PCB) 19904101560SCREW 6X3/8 HI-LO PHP BLX(RCA JACK) 4016473SCREW MA 8-32X1/2 PHP ZI(OUTPUT XFMR) 1032806SCREW MA TF 6-32X1/4 BLX(REAR PANEL) 30029913SCREW TF 6-32X3/16 PHP ZI(TUBE SOCKETS, CHOKE, REVERB, XFMR) 10025936STAND OFF PCB PUSH ON 5037783STAND OFF PCB PUSH ON 1/4L 1036570SWITCH TOGGLE DPSTS1 (POWER OFF/ON 1037039SWITCH TOGGLE SPSTS3 (STANDBY) 1037612XFMR OUTPUT 65 TWINT2 1049181TRANSFORMER POWER (EXPORT)T1 (100V/110/120/220/230/240V 1037610TRANSFORMER POWER 120VT1 (DOMESTIC) 1037099TRANSFORMER REVERBT3 4020424TUBE RING UNIVERSAL (277H-2)(POWER TUBES) 4023580TUBE SOCKET 8 PIN 6041267TUBE SOCKET 9 PIN PORCEL W/SHIELD 2023531TUBE VACUUM 12AT7V3 V6 4039214TUBE VACUUM 5881/6L6WGCV7 V8 V9 V10 4013341TUBE VACU 7025/12AX7WA RUSSIANV1 V2 V4 V5 3022293WASHER FLAT .473 X .750(SWITCHES POWER, STANDBY) 3031153WASHER FLAT 3/8X.614 NI(JACKS SPEAKER, FTSW) 49904300100WASHER LCK INTL 3/8X.618(JACKS SPEAKER, FTSW, HUM BALANCE) CABINET ASSEMBLY QTY PART # DESCRIPTION REFERENCE DESIGNATION 1049109CABINET ASSY CUSTOM VIBRASONIC 1049109030BACK ASSY LOWER VIBRASONIC(BACKBOARD) 1049109020BACK ASSY UPPER VIBRASONIC(BACKBOARD) “CUSTOM” VIBRASONIC CABINET ASSEMBLY (CONT) QTY PART # DESCRIPTION REFERENCE DESIGNATION 1038566CABLE ASSY SPKR RT ANG 13-1/2”(SPEAKER CABLE) 1025722CABLE REVERB 1100MM 4026566CORNER 2 HOLE W/TAB NI 4024653GLIDE CAB 1.24X.335 NI(STEEL ONLY) 4019275GLIDE-INSERT CUSHION 1.27 DIA(RUBBER ONLY) 1049109010GRILLE BAFFLE ASSY VIBRASONIC(COMPLETE GRILLE) REF037788GRILLE CLOTH BLACK/SILVER 1049094HANDLE MOLDED BACK 2024828LEG AMP TILT 16” 1047600NAMEPLATE LOGO BLACK 2021998NUT LOCK 10-32 W/ NYLON INSERT(TILT BACK LEGS) 4064162NUT-T 8-32X1/2 STR 3 PRNG BLX(HANDLE MOUNTING) 8021972NUT T 10-32X3/4 STR 3 PRNG BLX(SPEAKER MOUNTING) 1031849REVERB BAG 1064063REVERB UNIT 4 SPRING 4AB3C1B(PAN) 4037210SCREW SMA 2X 3/8 OHPNI(NAMEPLATE MOUNT) 4037247SCREW M 8-32X1 OHP NI(HANDLE MOUNTING) 4022236SCREW M 8-32X3-1/4 OHP NI(CHASSIS MOUNTING) 8037543SCREW SMAB 8X3/4 OHP NI(CORNER MOUNTING) 4026625SCREW WOOD 8X1” FLAT HEAD(GLIDE MOUNTING) 2031344SCREW SMA #6X1 OHP NI( LEG STOP) 8026577SCREW M 10-32X1 PHP BLX(SPEAKER MOUNT) 2022277SCREW M 10-32X1-1/2 OHP NI(TILT BACK LEGS) 8037952SCREW SMA #6X1 OHP NI(BACKBOARD MOUNT) 7029828SCREW PB #8X33/4 PHP ZI(REVERB/REAR CHASSIS MOUNT) 1049135SPEAKER 15” 4 CAST FRAME 2024752STRAP CHASSIS 4-1/2” NI(CHASSIS MOUNTING) 8037215WASHER CSINK #6 NI(BACKBOARD MOUNT) 2022285WASHER SP LOCK 1/4X9/16 NI(TILT BACK LEGS) 6022319WASHER FLAT 1/4X9/16 NI(TILT BACK LEGS) 2024646WASHER LEG STOP TN(TILT BACK LEGS) 11029527WASHER FINISH #8X5/8 BLX(GRILLE MOUNTING) 2022327WASHER FLAT #8X7/16 NI(REVERB MOUNTING) FOOTSWITCH ASSEMBLY QTY PART # DESCRIPTION REFERENCE DESIGNATION 1037211FOOTSWITCH VIRBRO/65 TWIN(COMPLETE FOOTSWITCH) 1021691BUSHING SR.500X.100X7/16 BLK(STRAIN RELIEF) 1022665COVER CUP DUAL FTSW ASSY(BLACK, SNAP ON) 1024638CUP FOOTSWITCH DUAL(HOUSING 2 BUTTON) 1016063DECAL FOOTSWITCH VIBRATO +R(VIBRO/REVERB) 1013172PLUG PHONE 3 CONDUCTOR 238 RA 2024042SWITCH SPST PUSHBUTTONS6 S7 (FOOTSWITCHES) 2022293WASHER FLAT .473X.750 NI REF023861WIRE BLACK 2 CONDUCTOR(SHIELD OVER 1 COND) REF023945WIRE BRAIDED SHIELD(INTERNAL GRND JUMPER) MISCELLANEOUS QTY PART # DESCRIPTION REFERENCE DESIGNATION 1049515MANUAL OWNERS CUSTOM VIBRASONIC 1049264SCHEM REDU W/SVC DIA VIBRASONIC