Lenovo T430u User Manual Page 44
- Page / 101
- Table of contents
- BOOKMARKS
Rated. / 5. Based on customer reviews
IftheLCDyouareservicinghastwoorlessvisibledefectivepixels,itshouldnotbeconsideredfaulty.
However,iftheLCDhasthreeormorevisibledefectivepixels,itwillbedeemedasdefectivebyLenovoand
itshouldbereplaced.
Notes:
•ThispolicyappliestoallThinkPadnotebookcomputerspurchasedon1January,2008orlater.
•LenovowillnotprovidereplacementiftheLCDiswithinspecicationaswecannotguaranteethatany
replacementLCDwillhavezeropixeldefects.
•OnepixelconsistsofR,G,Bsub-pixels.
Table5.LCD-relatedsymptoms
Symptomorerror
FRUoraction,insequence
Nobeep,power-onindicatoron,andablankLCDduring
POST.
Systemboard.
•LCDbacklightnotworking.
•LCDtoodark.
•LCDbrightnesscannotbeadjusted.
•LCDcontrastcannotbeadjusted.
1.ReseattheLCDconnectors.
2.LCDassembly.
3.Systemboard.
•LCDscreenunreadable.
•Charactersmissingpixels.
•Screenabnormal.
•Wrongcolordisplayed.
1.Seeimportantnotefor“LCD-relatedsymptoms.”
2.ReseatallLCDconnectors.
3.LCDassembly.
4.Systemboard.
HorizontalorverticallinesdisplayedonLCD.LCDassembly.
Intermittentproblems
Intermittentsystemhangproblemscanbeduetoavarietyofcausesthathavenothingtodowithahardware
defect,suchascosmicradiation,electrostaticdischarge,orsoftwareerrors.FRUreplacementshouldbe
consideredonlywhenaproblemrecurs.
Undeterminedproblems
Ifthediagnostictestsdidnotidentifythedevicethathasfailed,ifwrongdevicesareinstalled,orifthe
systemsimplyisnotoperating,followtheseprocedurestoisolatethefailingFRU(donotisolateFRUs
thathavenodefects).
Verifythatallattacheddevicesaresupportedbythecomputer.
Verifythatthepowersupplybeingusedatthetimeofthefailureisoperatingcorrectly.(See“Powersystem
checkout”onpage28
)
1.T urnoffthecomputer.
2.VisuallycheckeachFRUfordamage.ReplaceanydamagedFRU.
3.Removeordisconnectallofthefollowingdevices:
a.Non-ThinkPaddevices
b.Printer,mouse,andotherexternaldevices
c.Harddiskdrive
d.Externaldiskettedriveoropticaldrive
e.memorymoduleontheleftmemoryslot,ifthereisone
f.PCCards
4.T urnonthecomputer.
5.Determinewhethertheproblemhasbeensolved.
6.Iftheproblemdoesnotrecur,reconnecttheremoveddevicesoneatatimeuntilyoundthefailingFRU.
7.Iftheproblemremains,replacethefollowingFRUsoneatatime(donotreplaceanondefectiveFRU):
38HardwareMaintenanceManual
- HardwareMaintenanceManual 1
- FirstEdition(August2012) 2
- ©CopyrightLenovo2012 2
- Contents 3
- AppendixA.Notices..........93 4
- Aboutthismanual 5
- Chapter1.Safetyinformation 7
- Electricalsafety 8
- Safetyinspectionguide 9
- Groundingrequirements 10
- Chapter1.Safetyinformation5 11
- 6HardwareMaintenanceManual 12
- .Safetyinformation7 13
- Chapter1.Safetyinformation9 15
- VORSICHT 17
- .Safetyinformation11 17
- 12HardwareMaintenanceManual 18
- .Safetyinformation13 19
- 14HardwareMaintenanceManual 20
- .Safetyinformation15 21
- 16HardwareMaintenanceManual 22
- .Safetyinformation17 23
- 18HardwareMaintenanceManual 24
- .Safetyinformation19 25
- 20HardwareMaintenanceManual 26
- StrategyforreplacingFRUs 27
- Howtouseerrormessage 28
- Productdenition 28
- 24HardwareMaintenanceManual 30
- Chapter3.Generalcheckout 31
- Checkoutguide 32
- LenovoSolutionCenter 32
- Quicktestprograms 32
- UEFIdiagnosticprogram 33
- Bootablediagnosticprograms 33
- Powersystemcheckout 34
- Checkingtheacpoweradapter 34
- Checkingoperationalcharging 35
- Checkingthebatterypack 35
- Checkingthebackupbattery 35
- 30HardwareMaintenanceManual 36
- Passwords 38
- Power-onpassword 38
- Hard-diskpassword 38
- Supervisorpassword 39
- Powermanagement 40
- Screenblankmode 40
- Sleepmode 40
- Hibernationmode 41
- Symptom-to-FRUindex 41
- Numericerrorcodes 42
- Errormessages 43
- No-beepsymptoms 43
- Beepsymptoms 43
- LCD-relatedsymptoms 43
- Intermittentproblems 44
- Undeterminedproblems 44
- .Relatedserviceinformation39 45
- 40HardwareMaintenanceManual 46
- Chapter5.Statusindicators 47
- 42HardwareMaintenanceManual 48
- 44HardwareMaintenanceManual 50
- Chapter7.Locations 51
- Rearview 52
- Bottomview 52
- LocatingFRUsandCRUs 52
- .Locations47 53
- MajorFRUsandCRUs 54
- .Locations49 55
- LCDFRUsandCRUs 56
- LookingupFRUinformation 57
- 52HardwareMaintenanceManual 58
- Screwnotices 59
- Retainingserialnumbers 60
- RetainingtheUUID 61
- 56HardwareMaintenanceManual 62
- Generalguidelines 63
- Beforeservicingthecomputer 64
- RemovingtheSIMcard 64
- 1010Bottomcover 64
- 1020Batterypack 66
- StepScrew(quantity)Color 67
- Black0.181Nm 67
- (1.85kgf-cm) 67
- 1040Keyboard 69
- 64HardwareMaintenanceManual 70
- 1050Memorymodule 72
- AUXonthecard 75
- .RemovingorreplacingaFRU69 75
- 1080Backupbattery 77
- 1090Keyboardbezel 78
- .RemovingorreplacingaFRU73 79
- 1110Speakerassembly 81
- 1120Mediacardreader 82
- 1130Fingerprintreader 83
- 1140Powerbuttonsubcard 84
- Bronze0.181Nm 88
- M2×2.0mm,at-head(6) 88
- 2010LCDunit 90
- 86HardwareMaintenanceManual 92
- 2020LCDbezel 93
- 2030LCDpanel 93
- Foraccess,removethisFRU: 94
- •“2020LCDbezel”onpage87 94
- 88HardwareMaintenanceManual 94
- 2050Hinges 95
- 92HardwareMaintenanceManual 98
- AppendixA.Notices 99
- Electronicemissionsnotices 100
- Trademarks 100
- *1P0B48901* 101
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