IBM THINKPAD L460 - Beep Symptoms; No-Beep Symptoms; LCD-Related Symptoms

Table3.Errormessages(continued)
Symptomorerror
FRUoraction,insequence
Thebatteryinstalledisnotsupportedbythissystem
andwillnotcharge.Pleasereplacethebatterywiththe
correctLenovobatteryforthissystem.PresstheESC
keytocontinue.
Replacethebatterypack.
Thissystemdoesnotsupportbatteriesthatarenot
genuineLenovomadeorauthorized.Thesystemwill
continuetoboot,butmaynotchargeunauthorized
batteries.PresstheESCkeytocontinue.
Attention:Lenovohasnoresponsibilityforthe
performanceorsafetyofunauthorizedbatteries,and
providesnowarrantiesforfailuresordamagearisingout
oftheiruse.
Replacethebatterypack.
Beepsymptoms
Table4.Beepsymptoms
Symptomorerror
FRUoraction,insequence
Fourcyclesoffourshortbeeps
Replacethesystemboard.
Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,pause,andoneshortbeep(1–3–3–1
beeps)
1.Replacethememorymodule.
2.Replacethesystemboard.
FiveshortbeepsReplacethesystemboard.
Onelongandtwoshortbeeps
Replacethesystemboard.
Threeshortbeeps,pause,oneshortbeep,pause,one
moreshortbeep,pause,andthreeshortbeeps(3–1–1–3
beeps)
Havethecomputerserviced.
Fiveshortbeeps,pause,fivemoreshortbeeps,and
pause
Replacethesystemboard.
No-beepsymptoms
Table5.No-beepsymptoms
Symptomorerror
FRUoraction,insequence
Nobeep,power-onindicatoron,LCDblank,andno
POST.
1.Ensurethateveryconnectorisconnectedtightly
andcorrectly.
2.Reseatmemorymodule.
3.Replacethesystemboard.
Nobeep,power-onindicatoron,andLCDblankduring
POST.
1.Reseatmemorymodule.
2.Replacethesystemboard.
Thepower-onpasswordpromptappears.Apower-onpasswordorasupervisorpasswordisset.
TypethepasswordandpressEnter.
Theharddiskpasswordpromptappears.Aharddiskpasswordisset.Typethepasswordand
pressEnter.
LCD-relatedsymptoms
Important:TheTFTLCDforthenotebookcomputercontainsmanythin-filmtransistors(TFTs).The
presenceofasmallnumberofdotsthataremissing,discolored,oralwayslightedischaracteristicofTFT
Chapter4.Relatedserviceinformation37