Bassman_400_Service_Manual电路图.pdf
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1、BASSMAN 400/400H ? p/n 022-4505-000 (120V) SERVICE MANUAL CONTENTS: Notices Specifications Service notes Parts lists: PCB assy - Preamp PCB assy - Pwr amp Chassis assembly Cabinet assembly End item Schematics/drawings Fender Musical Instruments Corp. 7975 North Hayden Road Scottsdale, AZ 85258 Radio
2、Fans.CN 收音机爱 好者资料库 BASSMAN 400/400H ? (This is the model name for warranty claims) SERVICE MANUAL JUNE 2000 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 e
3、quipment 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
4、 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
5、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
6、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 RadioFans.CN 收音机爱 好者资
7、料库 BASSMAN 400/400H ? SPECIFICATIONS Product Release No.:PR 412 (This is not a model number) Bassman 400Bassman 400H Part Number:120V Version:22-450522-4506 240V Aus:22-453522-4536 230V UK:22-454522-4546 230V Eur:22-456522-4566 100V:22-457522-4576 Power Requirements:900W Power Amp Section: Power Out
8、put:350 Watts RMS into 4 0.02% THD, 1kHz Sensitivity:1.4V RMS, 1kHz Preamp Section: Input impedance:Passive: 1MActive: 1M Sensitivity At Full Power:Passive: 19mVActive: 40mV Nominal Level:Passive: 145mVActive: 300mV Tone Controls:Bass:+/-15 dB 50 Hz Treble:+/-15 dB 10 kHz ? Semi-parametric control:L
9、ow frequency:25Hz to 150Hz (3-Band, Switchable)Low level:+/-15dB low freq. setting Mid frequency:140Hz to 1.6kHz Mid level:+/-15 dB Mid frequency setting High frequency:1.4kHz to 8kHz High level+/-15dB High frequency setting Room balance:+/-10dB, crossover frequency: 350Hz Effects Loop: Send impedan
10、ce:1k Return impedance:22k Nominal level:+4dbu (adjustable with level control) Speakers:Bassman 400:Two Eminence 8 10 woofers (P/N 0051864000) One Foster 8 Horn (P/N 0048847000), FUSE: 2A 250V Footswitch:One button; Semi-parametric EQ (P/N 0055852000) Dimensions:Bassman 400:Height: 24 3/4(62.9 cm) W
11、idth: 23(58.4 cm) Depth: 17(43.2 cm) Bassman 400H:Height: 6 7/8(17.5 cm) Width: 23(58.4 cm) Depth: 15 1/2(39.4 cm) Weight:Bassman 400:80 lbs.(36.4 kg) Bassman 400H:42 lbs.(19.1 kg) Product specifications are subject to change without notice RadioFans.CN 收音机爱 好者资料库 BASSMAN 400/400H ? SERVICE NOTES 1.
12、CHASSIS REMOVAL is accomplished by first removing six (6) screws from the top, and one (1) screw from each side of the cabinet; then slide the chassis out the rear. 2. HEATSINK AIR BAFFLE should be in place before operating unit for extended periods. If baffle is removed, take care not to pinch any
13、wires when reinstalling. See Technote 2k-3 for additional information. The HF HORN is fuse-protected. This fuse is located on the rear speaker panel, near the Horn- level control PARTS LIST NOTE: SHADED ITEMS ARE FOR REFERENCE ONLY PRINTED CIRCUIT BOARD ASSEMBLY - PREAMP QTY PART # DESCRIPTION REFER
14、ENCE DESIGNATION 30029533000CABLE JMPR 22GA 4 CKT 3.2”PW1A-B PW2A-B PW3A-B 20048914000CABLE RIBBON 8 CKT 7 inPW100-101 20026517001CAP AE AX 2.2uF 50V 20%C7 C38 50038691001CAP AE AX 4.7uF 50V 20%C2 C5 C11 C19 C24 30038692001CAP AE AX 10uF 35V 20%C58-60 50025960001CAP AE AX 22uF 16V 20%C41 C44-46 C52
15、60042001001CAP CA 33pF 100V LLC6 C10 C18 C23 C30 C57 10039256001CAP CA 68pF 100V LLC39 20039258001CAP CA 180pF 100V LLC1 C25 10039261001CAP CA 330pF 100V LLC56 10039262001CAP CA 680pF 50V LLC32 160034788003CAP CR .1uF 50V 20% .2” LSC61-76 20027255003CAP MPF .001uF 100V 10%C16 C37 20027257003CAP MPF
16、.0022uF 100V 10%C17 C40 30027259003CAP MPF .0033uF 100V 10%C13 C29 C35 10027260003CAP MPF .0039uF 100V 10%C55 10027261003CAP MPF .0047uF 100V 10%C22 20027262003CAP MPF .0068uF 100V 10%C8-9 20027264003CAP MPF .01uF 100V 10%C21 C33 10041904003CAP MPF .012uF 100V 10%C15 10027265003CAP MPF .015uF 100V 1
17、0%C12 10041903003CAP MPF .018uF 100V 10%C14 20027270003CAP MPF .033uF 100V 10%C27-28 50027272003CAP MPF .047uF 100V 10%C42-43 C47-48 C51 20027278003CAP MPF .1uF 63V 10%C3-4 10027281003CAP MPF .22uF 63V 10%C36 30027283003CAP MPF .33uF 63V 10%C26 C53-54 30027286003CAP MPF .47uF 63V 10%C20 C49-50 10030
18、942003CAP PFF RDL .0056uF 50V 5%C31 100027945000CONTROL SNAPIN 100k B TAPERR13 R17 R34 R37 R39 R41 R43 R48 R94 R120 Gain RoomBalance Bass Treble LowLevel MidLevel HighLevel EqGain Compressor MasterVolume 10031089000CONTROL SNAPIN 100K 10C DUALR63 MidFreq BASSMAN 400/400H ? PRINTED CIRCUIT BOARD ASSE
19、MBLY PREAMP (cont) QTY PART # DESCRIPTION REFERENCE DESIGNATION 20053563000CONTROL SNAPIN 50k 30C DUALR56 R70 LowFreq HighFreq 310006260001DIODE 1N4448 SIGNAL LLD1-14 D16-24 D26-28 D31-33 D35-36 10027327001DIODE ZEN 1N5234B 6.2V 5% LLD25 10031635001DIODE ZEN 1N5240B 10V 5% LLD37 110016795000IC DUAL
20、OP-AMP TL072U1-8 U10 U13-14 10027404000IC CA3080AE OTAU9 40031611000IC DUAL OP-AMP PC4560U11-12 U15-16 10053450000JACK STEREO R/AJ1 Input 20030755000LED GREEN T-1 3mm DIFFUSEDD29 D38 40036178000SPACER LED .5x.1 BRN D29 D30 D34 D38 10040271000LED RED/YELLOWD15 20049948000LED, RED LONG LEAD LUMEXD30 D
21、34 20024937001RES CF 1/4W 5% 10 ohm LLR143 R146 10024952001RES CF 1/4W 5% 100 ohm LLR99 20024956001RES CF 1/4W 5% 220 ohm LLR112-113 30024962001RES CF 1/4W 5% 560 ohm LLR102-103 R144 30024963001RES CF 1/4W 5% 680 ohm LLR78 R91 R130 10024965001RES CF 1/4W 5% 1k LLR139 10024973001RES CF 1/4W 5% 3.3k L
22、LR1 30024977001RES CF 1/4W 5% 4.7k LLR11-12 R133 40024978001RES CF 1/4W 5% 5.6k LLR36 R50 R100-101 10028948001RES CF 1/4W 5% 6.2k LLR87 10024979001RES CF 1/4W 5% 6.8k LLR38 330024981001RES CF 1/4W 5% 10k LL R3 R5 R10 R14 R20-21 R31 R46-47 R49 R51 R57-58 R64-65 R71- 73 R79-81 R89 R98 R104-107 R118 R1
23、21 R125-126 R141-142 20024983001RES CF 1/4W 5% 12k LLR23 R132 20029006001RES CF 1/4W 5% 20k LLR82-83 70024987001RES CF 1/4W 5% 22k LLR109 R114-117 R123 R128 60024988001RES CF 1/4W 5% 27k LLR15 R19 R24 R28 R134-135 50024989001RES CF 1/4W 5% 33k LLR22 R75 R84 R96-97 100024993001RES CF 1/4W 5% 47k LLR6
24、-8 R29-30 R33 R45 R76 R131 R140 10024994001RES CF 1/4W 5% 56k LLR9 20026507001RES CF 1/4W 5% 62k LLR86 R92 60024995001RES CF 1/4W 5% 68k LLR52 R54 R59 R61 R66 R68 40024996001RES CF 1/4W 5% 82k LLR16 R18 R95 R136 100024997001RES CF 1/4W 5% 100k LL R32 R53 R55 R60 R62 R67 R69 R111 R119 R122 1002854900
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