Philips-PET-716-Service-Manual电路原理图.pdf

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1、DVD Portable Player PET719 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 ricambioidentici a quelli specificati.“After servicing and before returning set to customer perfo

2、rm 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 !Invisible laser radiation when open.Avoid direct exposure to beam.S Varning !Osynlig laserstrlning

3、 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 !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling

4、.Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflasermaybereceived.2.1 ESD PROTECTIONPREPARATIONOFSERVICINGPickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectrocity.Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectr

5、ostaticdischargeduringreplacement,itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.toprotectthelaserdiodeformdamagebystaticelectricity.Andalso,theLSIandICaresameasabove.SolderingironwithgroundwireorceramictypeGroundconductivewriststrapforbody.ConductivematThegr

6、oundresistancebetweenthegroundlineandthegroundislessthan101MSAFTY NOTICEPlug the AC line cord directly into a 120V AC outlet (donot use an isolation transformer for this check). Use anAC voltmeter, having 5000 per volt or more sensitivity.Connect a 1500 10W resistor,paralleled by a 0.15uF150V AC cap

7、acitor 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 PRECAUTIONSLEAKAGE CURRENT CHECKMeasure the AC voltage across the 1500 resistor.The test must be c

8、onducted 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 fault must be located and corrected.Repeat the above test with the DVD VIDEO PLAYERpower plug rever

9、sed.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 Leakage Current Check0.15uF 150V AC150010W(5000 per voltor more sensitivity)Good earth groundsu

10、ch 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 enclosure that may be of sufficient magnitude toconstitute a risk of electric shock to persons.

11、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.2.2 SAFETY INSTRUCTIONS Battery Handling Guideline Since the battery is packed in soft package,

12、 to ensure its better performance, its very important to carefully handle the battery 2.2.1 Soft Aluminium foil The soft aluminum packing foil is very easily damaged by sharp edge parts such as Ni-tabs, pins and needles. Dont strike battery with any sharp edge parts Trim your nail or wear glove befo

13、re taking battery Clean worktable to make sure no any sharp particle 2.2.2 Sealed edge Sealing edge is very flimsy Dont bend or fold sealing edge 2.2.3 Folding edge The folding edge is form in battery process and passed all hermetic test. Dont open or deform folding edge 2.2.4 Tabs The battery tabs

14、are not so stubborn especially for aluminum tab. Dont bend tab 2.2.5 Mechanical shock Dont Fall, hit, bend battery body 2.2.6 Short Short terminals of battery is strictly prohibited, it may damage battery. 3.0 INSTRUCTION FOR USE 4.0 MECHANICAL INSTRUCTIONDisassembly Procedure for Main Set 1. Remove

15、 8pcs of screws on the side of bottom cabinet. 2. Open the bottom cabinet; unplug all the wire connecter from main board. The wire connecters are for: DVD loader, battery board and TFT driver board, Key board and speaker. Remove all the screws on the main board(3 pcs) and SW board(1 pc); then take the main board from bottom cabinet. 3. up-plug the FFC from DVD driver, then you can take out the DVD Driver. 4. Remove the flex FFC on the bottom side behind the black flannel