Lenovo ThinkPad X230 Tablet User Manual Page 47
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Table6.LCD-relatedsymptoms(continued)
Symptomorerror
FRUoraction,insequence
•LCDscreenunreadable.
•Charactersmissingpixels.
•Screenabnormal.
•Wrongcolordisplayed.
1.Seeimportantnotefor“LCD-relatedsymptoms.”
2.ReseatallLCDconnectors.
3.LCDassembly.
4.Systemboard.
HorizontalorverticallinesdisplayedonLCD.LCDassembly.
Intermittentproblems
Intermittentsystemhangproblemscanbeduetoavarietyofcausesthathavenothingtodowithahardware
defect,suchascosmicradiation,electrostaticdischarge,orsoftwareerrors.FRUreplacementshouldbe
consideredonlywhenaproblemrecurs.
Whenanalyzinganintermittentproblem,dothefollowing:
1.Runthediagnostictestforthesystemboardinloopmodeatleast10times.
2.Foreachtest,dooneofthefollowing:
•Ifnoerrorisdetected,donotreplaceanyFRUs.
•Ifanyerrorisdetected,replacetheFRUshownbytheFRUcode.Rerunthetesttoverifythat
nomoreerrorsexist.
Undeterminedproblems
Ifthediagnostictestsdidnotidentifytheadapterordevicethathasfailed,ifwrongdevicesareinstalled,
orifthesystemsimplyisnotoperating,followtheseprocedurestoisolatethefailingFRU(donotisolate
FRUsthathavenodefects).
Verifythatallattacheddevicesaresupportedbythecomputer.
Verifythatthepowersupplybeingusedatthetimeofthefailureisoperatingcorrectly.(See“Powersystem
checkout”onpage24
.)
1.Turnoffthecomputer.
2.VisuallycheckeachFRUfordamage.ReplaceanydamagedFRU.
3.Removeordisconnectallofthefollowingdevices:
a.Non-ThinkPaddevices
b.Devicesattachedtothedockingstationortheportreplicator
c.Printer,mouse,andotherexternaldevices
d.Batterypack
e.Harddiskdrive
f.Externaldiskettedriveoropticaldrive
g.Memorymodule
h.PCCards
4.Turnonthecomputer.
5.Determinewhethertheproblemhasbeensolved.
6.Iftheproblemdoesnotrecur,reconnecttheremoveddevicesoneatatimeuntilyoundthefailingFRU.
7.Iftheproblemremains,replacethefollowingFRUsoneatatime(donotreplaceanondefectiveFRU):
a.Systemboard
b.LCDassembly
Chapter4.Relatedserviceinformation41
- HardwareMaintenanceManual 1
- ThirdEdition(March2013) 2
- ©CopyrightLenovo2012,2013 2
- Contents 3
- AppendixA.Notices.........109 4
- Aboutthismanual 5
- Chapter1.Safetyinformation 7
- 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
- StrategyforreplacingFRUs 23
- Howtouseerrormessage 24
- Productdenition 25
- 20HardwareMaintenanceManual 26
- Chapter3.Generalcheckout 27
- Checkoutguide 28
- LenovoSolutionCenter 28
- Quicktestprograms 28
- UEFIdiagnosticprogram 29
- Bootablediagnosticprograms 29
- Powersystemcheckout 30
- Checkingtheacpoweradapter 30
- Checkingoperationalcharging 31
- Checkingthebatterypack 31
- Checkingthebackupbattery 32
- Passwords 36
- Power-onpassword 37
- Harddiskpassword 37
- Supervisorpassword 37
- Powermanagement 38
- Sleepmode 38
- Hibernationmode 39
- Symptom-to-FRUindex 39
- Numericerrorcodes 40
- .Relatedserviceinformation35 41
- 36HardwareMaintenanceManual 42
- .Relatedserviceinformation37 43
- Errormessages 44
- Beepsymptoms 45
- No-beepsymptoms 46
- LCD-relatedsymptoms 46
- Intermittentproblems 47
- Undeterminedproblems 47
- 42HardwareMaintenanceManual 48
- Chapter5.Statusindicators 49
- 44HardwareMaintenanceManual 50
- .Statusindicators45 51
- 46HardwareMaintenanceManual 52
- Chapter6.Fnkeycombinations 53
- 48HardwareMaintenanceManual 54
- Chapter7.Locations 55
- Rearview 56
- Bottomview 56
- LocatingFRUsandCRUs 56
- .Locations51 57
- MajorFRUsandCRUs 58
- .Locations53 59
- LCDFRUsandCRUs 60
- MiscellaneouskitsandotherFRUs 61
- LookingupFRUinformation 62
- Screwnotices 63
- Retainingserialnumbers 64
- RetainingtheUUID 65
- 60HardwareMaintenanceManual 66
- Generalguidelines 67
- Beforeservicingthecomputer 68
- RemovingtheSIMcard 68
- 1010TabletDigitizerPen 68
- 1020Batterypack 69
- 1040Memorymodule 71
- 1050Hingecap 73
- 1060Keyboard 73
- Black0.181Nm 74
- .RemovingorreplacingaFRU69 75
- 1070Palmrest 76
- Removalstepsofpalmrest 77
- .RemovingorreplacingaFRU71 77
- 1080Backupbattery 78
- 74HardwareMaintenanceManual 80
- Wheninstalling 81
- .RemovingorreplacingaFRU75 81
- Wheninstalling: 83
- .RemovingorreplacingaFRU77 83
- 1110Bluetoothdaughtercard 85
- 1120Keyboardbezel 86
- Removalstepsofkeyboardbezel 87
- .RemovingorreplacingaFRU81 87
- 1130LCDunit 89
- (4kgf-cm) 92
- .RemovingorreplacingaFRU87 93
- FCClabel 94
- PlatformControllerHub(PCH) 98
- Microprocessor 98
- 2020LEDboard 101
- RemovalstepsofLEDboard 102
- 96HardwareMaintenanceManual 102
- .RemovingorreplacingaFRU97 103
- 2030LCDpanel 104
- 2040Integratedcamera 107
- (1.85kgf-cm) 108
- StepScrew(quantity)Color 108
- 2050Hinge 109
- .RemovingorreplacingaFRU105 111
- WirelessWANantenna,AUX(blue) 113
- WirelessLANantenna,AUX(black) 113
- 108HardwareMaintenanceManual 114
- AppendixA.Notices 115
- Electronicemissionnotices 116
- Trademarks 116
- *1P0B48730_02* 118
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