Samsung MultiXpress K7 Series - Page 466

4.Troubleshooting
2)HDDmakesaloudnoise.
•Symptom:TheHardDiskDrivemakesaloudnoisewhenworking.
•Cause:HDDitselfhasdefects.
•Troubleshooting
1)ReplacetheHDDwithnewone.
3)Networkingisnotworking.
•Symptom:Networkisnotworkingsuddenly.
•Cause:
-Networklineitselfisnotworkingproperly.
-Networkcongurationiswrong.
-Somerelatedelectroniccomponentshavethedefectinthemainboard.
•Troubleshooting
1)DoapingtestafterconnectingthenetworklinewhichwasusedintheSETtoaPCtocheckthenetworklineitself.
2)DoapingtestafterconnectingthenetworklinetotheSET.Ifitisokay,checkthenetworkcongurationwhichmay
setwrongbysomeuserswithoutnotice.
3)Iftheresultofthepingtestisnotgood,thenopentherearcoverandseethemainboardiftherearesomevisible
defectsonthenetworkrelatedcomponentssuchasconnector(CN16),capacitor(C192),andanyothercomponents
nearby.Surgevoltagefromtheoutsidemaycausethedefects.
4)Ifthosecomponentshavevisibledefects,thenthemainboardshouldbechanged.
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