JVC汽车音响CH-X1500RF电路原理图.pdf

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1、CH-X1500RFSERVICEMANUALCDCHANGER20034980403CH-X1500RFCH-X1500DISPINTCDCHANGERCONTROLF.SELBBE/LEVELRPTRNDF.SELAreaSuffix42JNorthernAmericaKS-RF150CH-X1500RFisacombinationofCH-X1500andKS-RF150.KS-RF150isacombinationofRemotecontrolandtheRFunit.TABLEOFCONTENTS1ImportantSafetyPrecautions.................

2、..........................................1-22Disassemblymethod..................................................................1-43Adjustmentmethod...................................................................1-224DescriptionofmajorICs..........................................................

3、.....1-30COPYRIGHT©2003VICTORCOMPANYOFJAPAN,LTD.No.498042003/03CH-X1500RFSECTION1ImportantSafetyPrecautions1.1SafetyPrecautions!Burrsformedduringmoldingmaybeleftoveronsomepartsofthechassis.Therefore,payattentiontosuchburrsinthecaseofpreformingrepairofthissystem.!Pleaseuseenoughcautionnottoseethebeam

4、directlyortouchitincaseofanadjustmentoroperationcheck.!ThisunitcanonlybeconnectedtotheJVCcarreceivers/controllersequippedwithMP3-CDchangercontrolfunctions.Ifconnectedtoanyotherreceiver/controller,thisunitcannotwork(evenCDsmaynotplayback).1-2(No.49804)CH-X1500RF1.2PreventingstaticelectricityElectrost

5、aticdischarge(ESD),whichoccurswhenstaticelectricitystoredinthebody,fabric,etc.isdischarged,candestroythelaserdiodeinthetraverseunit(opticalpickup).Takecaretopreventthiswhenperformingrepairs.1.2.1GroundingtopreventdamagebystaticelectricityStaticelectricityintheworkareacandestroytheopticalpickup(laser

6、diode)indevicessuchasDVDplayers.Becarefultousepropergroundingintheareawhererepairsarebeingperformed.(1)GroundtheworkbenchGroundtheworkbenchbylayingconductivematerial(suchasaconductivesheet)oranironplateoveritbeforeplacingthetraverseunit(opticalpickup)onit.(2)GroundyourselfUseananti-staticwriststrapt

7、oreleaseanystaticelectricitybuiltupinyourbody.(caption)Anti-staticwriststrap1MConductivematerial(conductivesheet)orironplate(3)Handlingtheopticalpickup•Inordertomaintainqualityduringtransportandbefore