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1、光驱与光盘的故障案例全分析（CD-ROMandCD-ROMfaultcaseanalysis）CD-ROMandCD-ROMfaultcaseanalysisBrieflyintroducessomeCDdriverandCDcase,inordertomakethecomputeruserreferenceandusewhenthesimilarfaultoccurs.1.,thedatalinetoreverse,resultinginCD-ROMdoesnotreaddisk[malfunctionphenomenon]
2、Anassemblycomputer,theinstallationsystemissettostartfromthedisk,putintheinstallationdiskthatcanstartthesystem,canstartwithouttestingdrive,directlyfromtheharddiskboot.[analysisprocessing]Openthecasecheck,foundthatthedrivedatalinecounter,thecorrectconnection,thefaultd
3、isappeared.2.bootselftest,noCDdriver[malfunctionphenomenon]Anassemblycomputer,installedaftertheboot,theself-testdidnotdetectthedrive,accesstotheoperatingsystemdoesnotshowthepresenceofCD-ROM.[analysisprocessing]Bootcheck,foundthatthedatalineisnotinserted.Reinsertthed
4、ataline,turnonthemachine,thefaultdisappears.3.thediscisreversed,resultinginunreadabledata[malfunctionphenomenon]CD-ROMusehasbeennormal,suddenlyunabletoreadCD-ROMdataphenomenon.AfteryouputtheCDintheCDdriver,youcanheartherotationofthedisc,andthedrivelightisblinking.Bu
5、tafterreadingforalongtime,youcannotseethecontentsofthedisc.Thesystempromptsthedisktobeinsertedintothedrive.[analysisprocessing]Accordingtothephenomenonanalysis,themechanicalpartoftheopticaldriveworksproperly,andthecontentsoftheopticaldiskcannotberecognized.Itmaybeth
6、eproblemoflaserhead,datatransmissionandsoon.Afterchecking,foundthatbecausethereisnoprintingofanytextandimagesontheCD,thereisnodifferencebetweenthetwosides,leadingtoCD-ROMdataisplacedontheCD-ROMdrive.Flipthediscbackintothedriveandthefaultdisappears.4.lackofpowersuppl
7、y,resultinginCD-ROMcannotbeusedproperly[malfunctionphenomenon]Acomputer,hasbeenworkingonanewCD-ROMafterafailure,theuseofnewCD-ROMplayCDandVCDdiscisnormal,butuseittoinstallthesoftwareautomaticallyrestartthecomputer,sometimestwoCD-ROMusedatthesametimewillalsoappeartor
8、estartthephenomenon.[analysisprocessing]First,checkthetwodriveusingthereplacementmethod,andfindthatanyoneusingitwillworkproperly.Takingint
