Philips-PET-101-Service-Manual电路原理图.pdf

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1、DVD Portable Player PET100/PET101 All version 3141 785 33103 Version 1.3 TABLE OF CONTENTS Chapter Technical Specification fr Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lapparecchio venga rimessonelle condizioni originali e che siano utilizzati i pezzi di r

2、icambioidentici 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 exceed 0.5mA.“CLASS 1LASER PRODUCT3122 110 03420GB Warning !In

3、visible 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 alttiinankymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynl

4、ig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflasermaybereceived.2.1 ESD PROTECTIONPREPARATIONOFSERVICINGPickupHeadconsistsofalaserdiodethatisverysuscepti

5、bletoexternalstaticelectrocity.Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.toprotectthelaserdiodeformdamagebystaticelectricity.Andalso,theLSIandICaresameasab

6、ove.SolderingironwithgroundwireorceramictypeGroundconductivewriststrapforbody.ConductivematThegroundresistancebetweenthegroundlineandthegroundislessthan101MSAFTY NOTICEPlug the AC line cord directly into a 120V AC outlet (donot use an isolation transformer for this check). Use anAC voltmeter, having

7、 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.).SAFTY PR

8、ECAUTIONSLEAKAGE 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 potentialexists, the fau

9、lt 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 Hook-up for

10、 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 theproducts

11、 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 appliance

12、.CAUTIONUse of controls or adjustments or performance ofprocedures other than herein may result in hazardousradiation exposure or other unsafe operation.- VOL +Volume control. Skip to the previous/next chapter, track or title.3.0 INSTRUCTIONS FOR USE 1 23128 910Stop playback or erase a program.Switc

13、h the power on/off.11POWER/IR/CHRPower /remote sensor /chargingindicator. MAIN UNIT CONTROLPOWEROPENAVOUTOpen the disc door to insert or remove disc.Audio/Video output.SETUPMENUEnter or exit the system menu. Enter or exit the disc contents menu.4Start or interrupt playback.DC IN Power supply socket.

14、1413 DC OUTDC output./5671423127681310591114Up / down cursor.,Headphone jacks.PHONES 1 & 2SUBTITLE Subtitle language selector. REMOTE CONTROL 1 7 4 16 12 8 9 10 For VCD menu page. 11 A - B To repeat or loop a sequence in a title. RETURN SETUP OPTION Enter SETUP menu. Access additional functions. 0 -

15、 9 Access additional functions. VOL +/- Volume control. Numeric keypad. Up / down / left / right navigation key. Start / pause / resume playback MENU Display MENU page. 15 OK Confirm seletion. Mute player volume AUDIO Audio language selector. ZOOM Enlarge video image. 14 13 Skip to next chapter, tra

16、ck or title. 5 6 DISPLAY Adjust the display value of the system. Skip to previous chapter, track or title. 3 2 , , , 2 5 3 4 1 6 7 8 9 10 11 12 13 14 15 16 4.0 MECHNICAL INSTRUCTIONSPET101Fig.11. Back View as Fig.1Remove screws and broken connections to remove the top.2. Broken connections to remove

17、 the loading assy as Fig.2. 3.Fig.2Fig.3Remove screws to remove the main PCB as Fig.3.4.Fig.4Divided the top into the door and function button discreteness and the middle cabinet discreteness, remove screws to remove the function PCB from the door and function button discreteness as Fig.4.5.0 TROUBL

18、ESHOOTING & SERVICE TIPS noreplace cable/adapterSYMPTOM: NO POWER, NO GREEN LEDCheck if thepower cableandAC adapterOK?No defect, returnset to customeryesstartset OK?Check if thepower and playbutton OK?replace connectorand switch unitreplace MAINBOARDgo to otherSYMPTOMnoyesyesnoreplace DVD driveSYMPT

19、OM: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL OUTPUTstartCheckoperation ofthe DVD drive.Does the DVDdrive work?yesnoReplace the mainboard or theconnector5.0 TROUBLESHOOTING & SERVICE TIPS noSYMPTOM: THE INITIAL SCREEN IS NOT DISPLAYED ON THE LCDCheck if theLED on thefront lights up?startCheck if

20、 thebacklight isOK?Check if thelighting of theLCD is OK?Open the top andbottom assemblyto check theconnector harnessOpen the top andbottom assemblyto check theconnector to themain boardyesyesnonoyesRefer to thesymptom NOPOWER, NOGREEN LEDIs theconnectorharnessbroken?Replace brokenharnessyesRemove th

21、e LCDcover and plate ofthe LCD unit tocheck theconnector of theFL harnessIs theconnector OK?noRepair connectorReplace FLinverter or LCDnoyesIs theconnectorbroken?Replace LCDharness or mainboardyesRemove the LCDcover and plate ofthe LCD unit tocheck theconnection of theharness to theLCD unitnoIs theconnectionOK?Connect the LCDharness to theLCD unitnoReplace LCD unitor main boardyesReplace LCD unitor main boardSYMPTOM: NO IMAGE OR SOUND COMES OUT FROM THE EXTERNAL INPUTstartReplace the mainboard or theconnector