Philips-PET-320-Service-Manual电路原理图.pdf

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1、DVD Portable Player PET320/00/05/37 3141 785 30840 Version 1.0 TABLE OF CONTENTS Chapter Technical Specification. 1 Safety Instructions. 2 Instruction for Use 3 Mechanical Instructions. 4 Troubleshooting fr Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che lappare

2、cchio venga rimessonelle 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 leaka

3、ge 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 nr apparaten r ppnad och sprrenr urkopplad. Betrakta ej strlen.SF Varoitus !Avatussa laitteessa ja suojalukituksen ohitett

4、aessa olet alttiinankymttmlle laseristeilylle. l katso steeseen!DK Advarse !Usynlig laserstrling ved bning nr sikkerhedsafbrydere erude af funktion. Undg udsaettelse for strling.Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflasermaybereceived.2.1 ESD

5、PROTECTIONPREPARATIONOFSERVICINGPickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectrocity.Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.t

6、oprotectthelaserdiodeformdamagebystaticelectricity.Andalso,theLSIandICaresameasabove.SolderingironwithgroundwireorceramictypeGroundconductivewriststrapforbody.ConductivematThegroundresistancebetweenthegroundlineandthegroundislessthan101MSAFTY NOTICEPlug the AC line cord directly into a 120V AC outle

7、t (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 capacitor between a knomn good earth ground(water pipe, conduit, etc.) and all exposed metal parts ofcabinet (antennas, handle

8、 bracket, metal cabinetscrewheads, metal overlays, control shafts, etc.).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

9、 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 reversed.NEVER RETURN A DVD VIDEO PLAYER TO THECUSTOMER WITHOUT TAKING NECESSARYCORRECTIVE ACTION.READING SHOULD NOT EXCEED 0.3V

10、DVD VIDEO PLAYERAC OUTLETAC VOLTMETERTest all exposed metal.Voltmeter Hook-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 al

11、ert 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.The exclamation point within an equilateral triangle isintended to alert the user to the presence of importantoperating and

12、 maintenance (servicing) instructions in theliterature accompanying the appliance.3. INSTRUCTION FOR USE 4. MECHANICAL INSTRUCTIONS Disassembly Procedure on PET320 Screw Philips 12NC 1 Remove the screws on bottom housing cabinet 994000003857 (7pcs) 2 Use finger or treezer to separate middle cabinet

13、from the bottom cabinet assy 3 Generally open up the bottom cabinet 4 After removal the bottom cabinet, there is the bottom PCBA connected with the bottom cabinet. While another side, there is the driver, LCD and top PCBA connected with the middle and top cabinet. 4. MECHANICAL INSTRUCTIONS Disassem

14、bly Procedure on PET320 Screw Philips 12NC 5 Remove the screws on bottom PCBA to separate it from the bottom cabinet 994000003858 (5pcs) 6 Lift up the driver generally from the pin area on the middle cabinet 7 Remove the screws on metal plate to separate it from the top cabinet 8 Remove the screws o

15、n speaker holder to separate the speaker and top PCBA from the top cabinet 994000003859 994000003861 (4pcs) 9940000038634. MECHANICAL INSTRUCTIONS Disassembly Procedure on PET320 Screw Philips 12NC 9 Remove the screws on LCD edge to separate it from the top cabinet 994000003862 (4pcs -included in LC

16、D module) 10 The button key could be picked up easily 9940000038659940000038649940000038665. TROUBLESHOOTING & SERVICE TIPS 5.1 Procedure to change region code 1. Open DVD Door 2. Press and hold the OSD key together with the POWER ON (fII) key for about 4sec to enter CONFINGURATION SETUP menu 3. Pre

17、ss the UP and DOWN (S) key to enter REGION on menu 4. Press the NEXT (ff|) key to select REGION NO. 5. Press the UP and DOWN (S) key to select number of 1 to 6 6. Press the OK key to save the selection. Note : Once press OK, data with new REGION NO. will be stored into EEPROM and replace the old one. 7. Switch off and re-switch on the product 8. Verify Region code change done Region Code Region 1 USA 2 EUROPE 3 ASIA PACIFIC 4 AUSTRALIA, NEW ZEALAND, LATAM 5 RUSSIA, INDIA 6 CHINA REGION AGING SETTING Version : 1.00 DEFAULT