1270P_Powered_Monitor_Service_Manual 电路图.pdf

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1、1270P MONITOR p/n 071-1271-000 (120V) SERVICE MANUAL CONTENTS: Notices Specifications Service notes Parts lists: PCB assembly Chassis (input) assembly Cab (baffle) assembly End item Schematics/drawings Fender Musical Instruments Corp. 7975 North Hayden Road Scottsdale, AZ 85258 RadioFans.CN 收音机爱 好者资

2、料库 1270P MONITOR (This is the name for warranty claims) SERVICE MANUAL MARCH 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 equipment maintenance and s

3、ervice. 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 ma

4、intenance 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 foll

5、ows: 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

6、 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 好者资料库 1270P MONITOR SPECIFICA

7、TIONS Product Release No.:PR 435 (This is not a model number) Part Number:71-1271-000 (120V, 60Hz)71-1271-060 (230V, 50Hz) Eur 71-1271-040 (230V, 50Hz)71-1271-030 (240V, 50Hz) Aust Power Requirement:360W Power Output:100W, THD 0.5% (bi-amped) Inputs:XLR Balanced, mic-level (Mic input supplied w/full

8、-time 15V phantom pwr); 1/4 TRS balanced, line-level (LINE input); 1/4 TS unbalanced, line level (AMP IN input) Outputs:1/4 TS unbalanced, line-level (LINE OUT output) Frequency Response:110Hz - 20k Maximum Output SPL at 1M:109dB (continous)115dB (peak) Input Sensitivity:Line: 100mV RMS, -20dBV and

9、Mic: 10mV RMS, -40dBV Amp In: 1V RMS, 0dBV (LEVEL max for all three inputs) Tone Control:+/- 10 dB 12kHz Low Freq. Driver:10 (25.4 cm), 4 with 2 (5.1 cm) Voice Coil (p/n 0055911000) High Freq. Driver:Coaxial Piezo Compression Driver, 1.5 Diaphragm (p/n 0055741000) Maximum Output:115dB (Continous), 1

10、21dB (peak 1 Meter) Crossover Freq:2.2kHz Dimensions:Height:13 3/8(34 cm) Width: 13 3/8(34 cm) Depth: 9 1/8(23.2 cm) Weight:22 lbs.(10 kg) Product specifications are subject to change without notice RadioFans.CN 收音机爱 好者资料库 1270P MONITOR SERVICE NOTES Disassembly For Servicing Accessing power amp: Re

11、move four (4) screws securing the metal grille, remove grille; remove two (2) screws securing the heatsink, the wires are sufficiently long to allow removal of the power amp PCB assembly Accessing input assembly: Remove four (4) screws securing the input plate, the plate/PCB assembly may be removed

12、through the opening (note: it may be necessary to clip one or two wire ties in order to accomplish this). Transformer replacement: In the event it becomes necessary to access or replace the power transformer, the wooden baffle will have to be removed; this can be accomplished by first removing the g

13、rille, removing twelve (12) screws around the perimeter of the baffle, then removing the baffle. The transformer is mounted to the baffle with three (3) screws (Note: the input assembly will have to be removed in order to disconnect the transformer leads). Speaker Replacement: Remove four (4) screws

14、 securing the metal grille, remove the grille; remove four (4) screws securing the speaker, remove speaker. The speaker is comprised of a low-frequency driver and a high-frequency driver. Each is separately replaceable. To remove the high-frequency driver, unscrew it from the rear of the low-frequen

15、cy driver. Take care not to lose the gasket which is inside the threaded hole. PARTS LIST NOTE: SHADED ITEMS ARE FOR REFERENCE ONLY PRINTED CIRCUIT BOARD ASSEMBLY QTY PART # DESCRIPTION REFERENCE DESIGNATION 10028458003CAP AE RDL 1uF 50V 20%C9 20028459003CAP AE RDL 2.2uF 50V 20%C5-6 20028463003CAP A

16、E RDL 10uF 50V 20%C25-26 70028467003CAP AE RDL 22uF 50V 20%C10 C12 C14-16 C23 C35 20028471003CAP AE RDL 47uF 50V 20%C3-4 20028474003CAP AE RDL 100uF 25V 20%C17-18 30028479003CAP AE RDL 220uF 25V 20%C40-42 20056479000CAP AE RDL 2200uF 25V LOPROFILC46-47 20031756000CAP AE RDL 4700uF 50V +100%-20%C50-5

17、1 1270P MONITOR PRINTED CIRCUIT BOARD ASSEMBLY (cont) QTY PART # DESCRIPTION REFERENCE DESIGNATION 10051414003CAP CD 5pF 500V 5%C11 40051405003CAP CD 120pF 500V 5%C1-2 C7-8 80034788003CAP CR .1uF 50V 20% .2 LSC21-22 C24 C27-28 C33 C38-39 30027260003CAP MPF .0039uF 100V 10%C19-20 C30 20027263003CAP M

18、PF .0082uF 100V 10%C13 C29 10047165000CAP MPF .01uF 250VAC 20%C43 10027265003CAP MPF .015uF 100V 10%C31 40052003003CAP MPF .1uF 250V 10%C44-45 C48-49 20027283003CAP MPF .33uF 63V 10%C32 C34 20030935003CAP PFF RDL .0018uF 50V 5%C36-37 20031266000CONTROL RTRY 50k B TAPERR14 R16 60064089001DIODE 1N4003

19、D8-9 D12-15 10006260001DIODE 1N4448 SIGNALD1 40020534000DIODE 1N5402 RECTIFIER 200V C&FD16-19 20025821001DIODE HV FDH400 SWITCHING LLD4-5 20056476060DIODE MUR420 FAST RECOVERY 200VD2-3 20027329001DIODE ZEN 1N5228B 3.9V 5% LLD6-7 20028119060DIODE ZEN 1N5353B 16V 5W 5%D10-11 80025802000FSTN TAB MALE .

20、250 x.032 PCB MTP1-7 P9 20051094003FUSE CLIP PCB 5mm (EXPT)F1 20027416000HDR .1 CTR 8 CKT SQ PINP8 P8A 10041905000SPACER RND .120X.187X.865AT D20 20051198000IC OP AMP DUAL BA4560N SIPU1-2 10051934000IC POWER AMP TDA2050V 32WU3 10055879000IC POWER AMP TDA7294V 100WU4 20055922000INDUCTOR AIR CORE AXL

21、1.0uHL1-2 20051006000JACK 1/4 PCB DUAL TIP MONOJ3-4 10051007000JACK 1/4 PCB STEREO W/ SWITCHJ2 10030755000LED GREEN T-1 3mm DIFFUSEDD20 10055914000PCB FAB 1270P 30025818001RES CF 1/4W 5% 4.7ohm LLR32 R34 R38 20024937001RES CF 1/4W 5% 10ohm LLR33 R49 20024952001RES CF 1/4W 5% 100ohm LLR20 R53 6002495

22、7001RES CF 1/4W 5% 270ohm LLR35 R37 R41 R44-45 R47 10029341001RES CF 1/4W 5% 360ohm LLR30 10024965001RES CF 1/4W 5% 1k LLR26 30024972001RES CF 1/4W 5% 2.7k LLR24 R42-43 10028034001RES CF 1/4W 5% 5.1k LLR13 10024979001RES CF 1/4W 5% 6.8k LLR39 10024981001RES CF 1/4W 5% 10k LLR23 10029002001RES CF 1/4

23、W 5% 11k LLR11 10029539001RES CF 1/4W 5% 13k LLR15 20024985001RES CF 1/4W 5% 15k LLR29 R31 30029006001RES CF 1/4W 5% 20k LLR22 R46 R48 10024987001RES CF 1/4W 5% 22k LLR27 10028863001RES CF 1/4W 5% 24k LLR12 10028865001RES CF 1/4W 5% 30k LLR21 10024991001RES CF 1/4W 5% 39k LLR36 10028956001RES CF 1/4

24、W 5% 43k LLR25 10028153001RES CF 1/4W 5% 75k LLR10 1270P MONITOR PRINTED CIRCUIT BOARD ASSEMBLY (cont) QTY PART # DESCRIPTION REFERENCE DESIGNATION 40024997001RES CF 1/4W 5% 100k LLR9 R17-19 40031819001RES MF 1/4W 1% 1.82k LLR1-4 40031818001RES MF 1/4W 1% 18.2k LLR5-8 10015718001RES MF 1/4W 1% 1.00k

25、 LLR40 10030737001RES CF 1/2W 5% 5.6ohm LLR28 10037169001RES CF 1/2W 5% 1.8k LLR50 20039189000RES WW BT 7W 10% 390ohmR51-52 10050573000XLR CONNECTOR FEMALE GOLDJ1 30025751003XSTR NPN 2SC2362K/2SC2389STPSQ3 Q6 Q8 10028114000XSTR NPN TIP142 TO-218ACQ1 30025752003XSTR PNP 2SA1038STPSQ4-5 Q7 10028115000

26、XSTR PNP TIP147 TO-218ACQ2 INPUT (CHASSIS) ASSEMBLY QTY PART # DESCRIPTION REFERENCE DESIGNATION 10055728000PCB ASSY 1270 CROSSOVER 10055715000PLATE INPUT 1270 MONITOR 20021956000JACK PHONE OPEN CIRCUIT 11 40025804000STANDOFF 6-32x1/2 RND AL 80031184000SCRW M6-32x1/4 PHPS BLX ITLW 20016436000WSHR LC

27、K INTL 3/8x.687x.035 NI 20031153000WSHR FLAT 3/8x.614 NI 20016352000NUT HEX 3/8-32x3/32 TK NI BAFFLE (CAB) ASSEMBLY QTY PART # DESCRIPTION REFERENCE DESIGNATION 1.180047792000PLYWOOD BALTIC BIRCH 5/8 SF 0.1740040046000CARPET BLACK SY 40021972000NUT T 10-32x3/4 STR 3 PRNG BLX END ITEM ASSEMBLY QTY PA

28、RT # DESCRIPTION REFERENCE DESIGNATION 10055598000BAFFLEBOARD ASSY 1270 MONITOR 10055376000CABINET 1270 MONITOR 10055740000SPKR 10 8 OHM COAXIAL 10055741000DRIVER HORN PIEZO 10055742000GASKET HORN THROAT 10055743000INPUT ASSY 1270 MONITOR 10051494000POLY DAMPING 10055618000GRILLE 1270 MONITOR 100557

29、44000LOGO ELLIPTICAL RED F 20055732000PUSH NUT 1/8 POST 40029677000SCRW SMA 6x1 THP BLX 1270P MONITOR END ITEM ASSEMBLY (cont) QTY PART # DESCRIPTION REFERENCE DESIGNATION 210024052000SCRW SMA 6-x5/8 PHP BLX 40026553000SCRW M 8-32x3/8 PHP BLX 10055746000BAR HANDLE PLASTIC 40055733000SCRW M 8-32x1/2 OHP BLX 40026577000SCRW M 10-32x1 PHP BLX 80022004000NUT KEPS #8-32 ZINC 10055722000U-CHANNEL RUBBER 90055748000RUBBER FOOT 1/2 DIA 40055734000RUBBER FOOT 3/4 DIA