Philips-DCP-850-Service-Manual电路原理图.pdf

《Philips-DCP-850-Service-Manual电路原理图.pdf》由会员分享，可在线阅读，更多相关《Philips-DCP-850-Service-Manual电路原理图.pdf（37页珍藏版）》请在收音机爱好者资料库上搜索。

1、DVD Portable Player DCP850 All version 3141 785 31651 Version 1.1 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 ricambio

2、identici 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 !Invisible

3、 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 !Usynlig lase

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

5、ternalstaticelectrocity.Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.toprotectthelaserdiodeformdamagebystaticelectricity.Andalso,theLSIandICaresameasabove.Sol

6、deringironwithgroundwireorceramictypeGroundconductivewriststrapforbody.ConductivematThegroundresistancebetweenthegroundlineandthegroundislessthan101MSAFTY NOTICEPlug the AC line cord directly into a 120V AC outlet (donot use an isolation transformer for this check). Use anAC voltmeter, having 5000 p

7、er 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 PRECAUTIO

8、NSLEAKAGE 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 fault must

9、 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 Leakag

10、e 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 enclos

11、ure 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.3.0 IN

12、STRUCTION FOR USE 4.0 MECHANICAL INSTRUCTIONDisassembly Procedure 1 Remove 6pcs of screws on front side of bottom cabinet. (Please note the left hand side screw is shorter than others, make sure do not put long screw during re-assembly, otherwise it will damage the middle cabinet!) 2 Remove 2pcs of

13、screw on top side of bottom cabinet. 3 Remove 2pcs of screws on middle cabinet.4 Open the bottom cabinet carefully, unplug the wire connector of key board from the main board. (left bottom side) 4.0 MECHANICAL INSTRUCTION5 Unplug another wire connector of Ipod board from main board. (right top side)

14、 6 To remove main board from cabinet, unplug / disconnect the wires on top side first. 7 And then remove all screws on main board connected with bottom cabinet. 8 To remove battery board and battery from cabinet, remove the screws on battery board connected with bottom cabinet first, and then pull o

15、ut the battery from taped foam carefully. Make sure battery without damage. 4.0 MECHANICAL INSTRUCTION9 Be careful not to broken the wire connection between battery and battery board. Otherwise you can re-soldering them as shown in picture. 10 To remove DVD loader, unplug the wires connected with main board. 11 And then remove the flex cable on the bottom side. 12 The middle cabinet assy overall