SD-P2800SN

FILE No. 810-200587 REVISED: 01 SERVICE MANUAL PORTABLE DVD PLAYER SD-P2800SN DOCUMENT CREATED IN JAPAN, NOVEMBER, 2005 Nov.,2005 (SH) http://www.Datasheet4U.com LASERBEAMCAUTIONLABEL Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitis removed,radiationoflaser maybereceived. PREPARATIONOFSERVICING PickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectricity. Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement, thelifeof products mightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc. to keepthelaserdiodeaway fromthe damagebystaticelectricity. The above caution is also applied toLSIandIC. Groundconductive wriststrapforbody. Solderingiron withgroundwire orceramictype 1M Conductivemat Thegroundresistance betweenthegroundline andthegroundislessthan10 SAFTY NOTICE SAFTY PRECAUTIONS LEAKAGE CURRENT CHECK Plug the AC line cord directly into a 120V AC outlet (do not use an isolation transformer for this check). Use an AC voltmeter, having 5000 Connect a 1500 per volt or more sensitivity. 10W resistor,paralleled by a 0.15uF Measure the AC voltage across the 1500 resistor. The test must be conducted with the AC switch on and then repeated with the AC switch off. The AC voltage indicated by the meter may not exceed 0.3V.A reading exceeding 0.3V indicates t...