Marantz-SR1100-rec-sm 维修电路原理图.pdf
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1、.4r;SERVICEMANUALRadioFans.CN 收音机爱 好者资料库MARANTZ DESIGN AND SERVICEUsing superior desiqn and selecte.l high grade components, lilARANTZ has created the ultimate in stereo sound. Only orlginall,lARANTZ parts can insure that your t!,4ARANTZ product will continue to pefform to the specLfications or whic
2、h it isfamou s.parts for your MARANTZ stereo are generally available withln 72 hours throughout the nation via a toll-free llne to ourNational parts Depot in California. The sales professionals who take your call immediately refer to thelr own desk top com_puter terminal and can qulckJy determine th
3、e availability and price lnformation yoLt reqLrire. lf for some reason, your ordershoLlld exceed our available stock, we usually can instantly provlde an alternate replacement part or current delivery information. When the order is placed and confirmed, the computer simultaneously generates hard cop
4、y orders at the dlstribLltlon center. As hard copies come directly from the computer to the national partsdepot, your requested stock sassembledand orepared for shipment and placed on the first available carrier ior dellvery to youORDERING PARTSphone orders will eliminate mail delays, and we encoura
5、ge the use of this metho(l. lf you order by mail, use IVIARANTZparts order forms which are available frorn our National Parts Depot located at the following addresslThe following information must be supplied to ellminate delays in processinq yo(rr orcler:1. Complete address.2. Complete part n um ber
6、s-3. Complete description of Parts.4. lModel number for which part is required (indicate MARANTZ).5. Account number (for account customers only).Direct consumers wilL be provided with the current rta I prlve quotation on available parts in order to advise them ol thccost of the Parts and shiPP ngOVE
7、RSEAS PARTS ORDERINGParts rnaV also be ordered from the fo lowing overseas addresses:Maranfz Australta32 Cross StreetBrookvale,N.S.W.2100 D6072DreieichMarantz Germany Gmbh Marantz Audio U.K. Ltd. Marantz Svenska A.B.MaxPlanck StraRe 22,Austra llaMaran? Eu rope, S.A326, Avenue LouiseBoite 321 050 B r
8、usselsBelgrumWest GermanyMarantz Belgium193, London RoadSTA lN ES, l4idcllesexUnited K ingdomMarantz FranceFranzengatan 610425 StockholmS,vedenMarantz Norske A.S.R efstadaileen 13Oslo 5Norway45 qJe ALg-srp Van Trnc 4 Rro Ber rard Dal s.r92600 AsnieresFrance1080 B ru sselsBelgiumAll of the above loca
9、tions are fu ly equipped to take care of yolrr tota service needs. Because various countries have differingconiguration requirements, it is necessary that you contact the service facility ln your particular country. In lhe event thatthere is no service location listed for your country, p ease conlac
10、t the nearest facility for the necessary asslstance.rrr-rr-alrt_-RadioFans.CN 收音机爱 好者资料库1 .2.J .4.qTAB LE O F CONT ENTSP.W. BOARDSTEST EOUIPMENT REOUIRED FOR SERVICING .ALIGNMENT PROCEDURESVOLTAGE CONVERSIONDIAGRAM AND COMPONENT LOCATIONS5.1 Main Amp. & Power suppty (P700) Schematic Diagram and Comp
11、onent Locations - - 65.2 Antenna/Osc PBOO) Schematic Diagram and Component Locations - 65.3 Signal & Tuning LED (PX00) Schematic Diagram and Component Locations 85.4 Tuner P100) Schematic Diagram and Component Locations I5.5 switch Assembly (PS00) Diagram and component Locations . 105.6 Speaker Term
12、inal (PTO0) Diagram and Component Locations . 105,7 Power Switch (PUOo) Diagram and Component Locations . . . l06.8.9.BLOCK DIAG RAM . . .1 3EXPLODED VIEWS AND PARTS LISTTECHNICAL SPECIFICATIONSSCHEMATIC DIAG RAM261a-INTRODUCTIONThis service manual was prepared for use by AuthorizedWarranty Stations
13、 and contains service information forlMarantz lvlodel SF1 100L Stereophonic Receiver.Servicing information and voltage data included in thismanual are intended for use by the knowledgeable and experienced technician only- All instructions should be readcarefully. No atternpt should be made to procee
14、d withouta good understanding of the operation of the receiver.The parts list urnishes information by which replacementparts may be ordered Jrom the N4aranlz Company. A simpledescription is included for parts which can usually be obtained through local suPPliers2. TEST EOUIPMENT REOUIRED FOR SERVICI
15、NGItemManufacturer and Model No.Alvl Signal Generatort. P.w. BoABDSAs can be seen from the circuit diagram the chassis ofl4odel SR1100L conssts of the following units. Each unitmounted on a printed circuit board is described within thesquare enclosed by a bold dotted line on the circuit dia-gram.1.
16、Tuner . . - mounted on P-W. Board P1002. Main Amp/Power Supply. mounted on P.W. Board P7003. Volume/Balance Push Switchmounted on P.W. Board PS004. Speaker Terminal . . . . mounted on P.W. Baord PT005. Tuning LED . . . . . mounted on P.W. Board PX006. Antenna Coil mounted on P.W. Board PB007. Power
17、Switch mounted on P.W. Board PU00UseSignal source for AM alignmentTest LoopUse wlth AM Signal GeneratorFIM Signal GeneratorSound TechnologySignal source for FM alignmentMPX Oscillator adjLrstment (VCO )Trouble shootingVoltage measurements (DC)lvlonitors primary power to amplif ierStereo separation a
18、lignment and troLrbleshootrngDistortion measurementsSinewave and squarewave signaJ sourc-Voltage measurements lAC)Waveform analysis and trouble shooting andASO alignmentOscilloscopeFrequencY Cou nterFluke Model 19004Flukp l,4odel 8000 Dig.tal Simpsonf4odel 313, Triplet Model 801Simpson Model 1379Com
19、mercial Grade (1-10A)Simpson Model 1359Tektronix Model T932Philips l,.4odel 3232Superior Electronic Co.,Circuit TesterDC VTVMAC WattmeterOutput Loadr0.5%, 100w)AC AmmeterLine VoltmeterVariable AutotransformerShorting PlugPowerstat l4odel 1 168-10AlMonitors amplifier output under short crrcu tcond it
20、ionMonitors potential of primary power toam p lifierUse phono plug with 600-ohmacross center pin and shellCommercial GradeShorts amplifier input to eliminate norsep rcKLr pAdjustsevel ot pr mary power to dmp if erProvides 8-ohm load Jor amplifier outputtermrnar ronThis table lists the test equipment
21、 required for servicing the N4odel SR 1 100L ReceiverCommercial GradeOutput Load10.5%, 100w)Provides 4 ohm oad for amplifier outputrermtna( tonSRl1OOL TUNER P.W. BOARDg . I l*M w l w I I L w M wwl-lwFigure 2. Adjustment Point Locations3. ALIGNMENT PROCEDURESA dummy resistor of 47 k-ohms must be conn
22、ected across the tuner output terminals before alignment.3.1 FM Alignment Procedures (Function switch in the FM position)Flvl RF Alignment3,3 Multiplex Alignment Procedures (Function switch in the FM position/Mode switch in the STEREO position)StpSignal So0rc6ConneclionSignalIndicttorConnoctions( rh
23、e oigitllRoadout FrrquonryAdrurtIRF generalor toterminals throughmatching network(300 ohms, balanced)lMaintain RF lev6lbelow limit.)87.4 MHzchannel outputTuning capacitorminimum closed.L106 for maximumoutpui.2108.2 MHzTuning cepacitorC 118lor maximumoutpur,90 lvlHz90 lvlHzL101, L103 for maximum4106
24、MHz106 M HzANT. RF. TRIM. CAP.tor maximum output,5Repeat steps 1 to 4.6Check overall response curve and repeat above steps as necessarv to obtain maximum sensirivaty,1No signal0 center meteror DC currentmerer in 100pAJ2O1 and J2O2L2O1 primery core sothal the meter indacalesits center or may readO. (
25、RED core)8RF gnerator 1mV or300pV, only Step 10)outpul lo Flvl antennaterminals th.oughmatching network,300 ohms, balanced)98 MHzDistortion meter toL or R channelourpur98 MHzL201 Secondary core(BLK) for minimum distor-1 098 lvtHz98 MHzR219 so that sign6l strengthLED may light 5 points.3.2 Muting Cir
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