Lenovo ThinkPad Edge E535 Hardware Maintenance Manual

Table2.Numericerrorcodes(continued)
Symptomorerror(beeps,ifany)
FRUoraction,insequence
0251
SystemCMOSchecksumbad-Defaultconguration
used.
(twoshortbeeps)
1.Chargethebackupbatteryformorethan8hours
byconnectingtheacpoweradapter.
2.ReplacethebackupbatteryandruntheThinkPad
Setupprogramtoresetthetimeanddate.
0271
Dateandtimeerror-Neitherthedatenorthetimeisset
inthecomputer.
(twoshortbeeps)
RuntheThinkPadSetupprogramtoresetthetime
anddate.
1802
Unauthorizednetworkcardispluggedin-Turnoffand
removetheminiPCInetworkcard.
(twoshortbeeps)
1.RemovetheMiniPCInetworkcard.
2.Systemboard.
Errormessages
Table3.Errormessages
Symptomorerror(beeps,ifany)
FRUoraction,insequence
Fanerror.
(fourshortbeeps,onelongbeep)
1.Fan.
2.Thermalgrease.
3.Systemboard.
Thissystemdoesnotsupportbatteriesthatarenot
genuineLenovo-madeorauthorized.Thesystemwill
continuetoboot,butmaynotchargeunauthorized
batteries.
Attention:Lenovohasnoresponsibilityforthe
performanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingout
oftheiruse.
Replacethebattery.
No-beepsymptoms
Table4.No-beepsymptoms
Symptomorerror
FRUoraction,insequence
Nobeep,power-onindicatoron,LCDblank,andno
POST.
1.Makesurethateveryconnectorisconnected
tightlyandcorrectly.
2.DIMM.
3.Systemboard.
Nobeep,power-onindicatoron,andLCDblankduring
POST.
1.ReseatDIMM.
2.Systemboard.
Thepower-onpasswordpromptappears.Apower-onpasswordorasupervisorpasswordisset.
TypethepasswordandpressEnter.
Thehard-diskpasswordpromptappears.Ahard-diskpasswordisset.Typethepasswordand
pressEnter.
LCD-relatedsymptoms
Important:TheTFTLCDforthenotebookcomputercontainsmanythin-lmtransistors(TFTs).The
presenceofasmallnumberofdotsthataremissing,discolored,oralwayslightedischaracteristicofTFT
LCDtechnology,butexcessivepixelproblemscancauseviewingconcerns.
Chapter4.Relatedserviceinformation39

Lenovo ThinkPad Edge E535 Specifications

General

Brand	Lenovo
Model	ThinkPad Edge E535
Category	Laptop
Language	English