Philips-DS-9000-Service-Manual电路原理图.pdf

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1、DS9000/allTABLE OF CONTENTSPageTechnical specification .1-2Safety instruction.2-1 ESD protection. . .2-2 Set Block diagram . .3-1Set Wiring diagram . .4-1Disassembly diagram . 5-1Main fr Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio venga rimesson

2、elle condizioni originali e che siano utilizzati i pezzi di ricambioidentici a quelli specificati.“After servicing and before returning set to customer perform aleakage current measurement test from all exposed metal parts toearth ground to assure no shock hazard exist. The leakage currentmust not e

3、xceed 0.5mA.“CLASS 1LASER PRODUCT3122 110 03420GB Warning !Invisible laser radiation when open.Avoid direct exposure to beam.S Varning !Osynlig laserstrlning nr apparaten r ppnad och sprrenr urkopplad. Betrakta ej strlen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiinan

4、kymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.Caution: These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any

5、 servicing other than that contained in the operating instructions unless you are qualified to do so.2-1Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflasermaybereceived.2.1 ESD PROTECTIONPREPARATIONOFSERVICINGPickupHeadconsistsofalaserdiodethatisverys

6、usceptibletoexternalstaticelectrocity.Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.toprotectthelaserdiodeformdamagebystaticelectricity.Andalso,theLSIandICares

7、ameasabove.SolderingironwithgroundwireorceramictypeGroundconductivewriststrapforbody.ConductivematThegroundresistancebetweenthegroundlineandthegroundislessthan101M2-2SAFTY NOTICEPlug the AC line cord directly into a 120V AC outlet (donot use an isolation transformer for this check). Use anAC voltmet

8、er, having 5000 per volt or more sensitivity.Connect a 1500 10W resistor,paralleled by a 0.15uF150V AC capacitor between a knomn good earth ground(water pipe, conduit, etc.) and all exposed metal parts ofcabinet (antennas, handle bracket, metal cabinetscrewheads, metal overlays, control shafts, etc.

9、).SAFTY PRECAUTIONSLEAKAGE CURRENT CHECKMeasure the AC voltage across the 1500 resistor.The test must be conducted with the AC switch on andthen repeated with the AC switch off. The AC voltageindicated by the meter may not exceed 0.3V.A readingexceeding 0.3V indicates that a dangerous potentialexist

10、s, the fault must be located and corrected.Repeat the above test with the DVD VIDEO PLAYERpower plug reversed.NEVER RETURN A DVD VIDEO PLAYER TO THECUSTOMER WITHOUT TAKING NECESSARYCORRECTIVE ACTION.READING SHOULD NOT EXCEED 0.3VDVD VIDEO PLAYERAC OUTLETAC VOLTMETERTest all exposed metal.Voltmeter H

11、ook-up for Leakage Current Check0.15uF 150V AC150010W(5000 per voltor more sensitivity)Good earth groundsuch as a water pipe,conduit, etc.The lightning flash with arrowhead symbol, within anequilateral triangle, is intended to alert the user to thepresence of uninsulated “dangerous voltage“ within t

12、heproducts enclosure that may be of sufficient magnitude toconstitute a risk of electric shock to persons.The exclamation point within an equilateral triangle isintended to alert the user to the presence of importantoperating and maintenance (servicing) instructions in theliterature accompanying the

13、 appliance.2-33-1 3-1BLOCK DIAGRAM4-1 4-1WIRING DIAGRAMCN1J6J1J7J8J9J13CON1CN1CN1J2CN702CN302MAIN BOARDAlt and Bass Divider BOARDAlt and Bass Divider BOARDPOWER BOARDAC Socket& Aux Jack BoardKEY BOARDIR BOARDCONNECT BOARDiPod BOARDCN701CN301CN302CN3035-1 5-1DISASSEMBLY DIAGRAMDismantling of the Bott

14、om CabinetDismantling of the PCB Board.1)Remove 5 screws D as indicated to loosen the Power Board.2)Remove 3 screws E as indicated to loosen the Main Board.3)Remove 10 screws F as indicated to loosen the Ring.4)Remove 8 screws H as indicated to loosen the Alt and Bass Divider Board. 1) Remove the speaker grill as indicated. 2) Remove 33 screws A as indicated to loosen the Front Cabinet.3) Remove 16 screws B and C as indicated to loosen the Speaker.A CBDE HBOTTOM CAB.FRONT CAB.F6-1 6-1CIRCUIT DIAGRAM-MAIN BOARD AND KEY BOARDPART 1 6-2 6-2CIRCUIT DIAGRAM-MAIN BOARDPART2