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1、富士宝电磁炉维修资料总结（SummaryofFusiboelectromagneticovenmaintenancedata）SummaryofFusiboelectromagneticovenmaintenancedataFirst,thephenomenonoffailure,electrifywithoutreaction:A,2002,2003models:Maintenancesteps:firstcheckwhetherthepowerlinecircuitbreaker,thencheckthepowersupplyboardinsuranceisburntout,ifthebu
2、rnshouldcheckthepowertube,bridgerectifiers,0.27UFcapacitors,transformersand8316IConthemotherboardisdamaged,andthencheckwhetherthetransformerisbad.Iftheabovechecksarenormal,checkthemainboard.Checkthe3.6V,4.7V,5.6V,12V,18Vvoltageregulatortubevoltageisnormal,crystaloscillator,339IC,555IC,C24(104)capaci
3、torandU3(KA7533)isdamaged,CPU,buzzerisbad.B,2004models:Firstchecktheinsurancetubeisburned,iftheburn,thencheckthefollowingcomponents:powertube,bridge,7805Voltageregulatortubes,Q1(8550)transistors,Q2(8050)transistors,10ohmresistors,andCPU.Generally7805breakdown,CPUislikelytobeburnedout.Iftheinsurancei
4、snotbad,itispossiblethattheinsurancetubeistoolatetoburnout,youshouldrepeattheaboveinspectionprocess,determinetheabovecomponentsarenormal,donotswitchonthewire,checkthetransformerwhetherthereisvoltageoutput.C,2005models:Firstcheckthefuseisburntout,ifbad,checkthepowertube,bridge,Q1(8550)Q2,triode(8050)
5、R45,triode(10Ohm)7805resistor,voltageregulatortube,0.3UFcapacitorisdamaged,iftheaboveelementsarenormal,checkwhetherthenormalswitchingpowersupplytransformerorvoltageoutput,iftheswitchingpoweroutput,checkswitchboardZD2(18Vregulator)andtheswitchbreakdown,ifmorethantwoallnormal,checkCPU,C11(104),C14(104
6、)isnormalTwo,faultphenomenon:electrifybuzzersound,putonthepot,startwithalarmsound,notheating:A,2002,2003models:Firstchecktheoutputvoltageoftheregulatorisnormal,andthencheckthefollowingcomponentsifnormal.(1)whetherthesensorisdamagedornot,itsresistancedecreaseswiththeincreaseoftemperature,anditsnormal
7、resistanceisbetween50-200K(2)C22,C14(471),C15,C18,C19,C20(104)andC13(561),C31(474),C27(102),capacitorisdamaged.(3)8316IC.Thefirstfootandthelegs,thelegsandfeetareshortofseventh.(4)whethertheresistances
