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•OnepixelconsistsofR,G,Bsub-pixels.
Table6.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.
Whenanalyzinganintermittentproblem,dothefollowing:
1.Runthediagnostictestforthesystemboardinloopmodeatleast10times.
2.Ifnoerrorisdetected,donotreplaceanyFRUs.
3.Ifanyerrorisdetected,replacetheFRUshownbytheFRUcode.Rerunthetesttoverifythatno
moreerrorsexist.
Undeterminedproblems
Ifthediagnostictestsdidnotidentifytheadapterordevicethathasfailed,ifwrongdevicesareinstalled,
orifthesystemsimplyisnotoperating,followtheseprocedurestoisolatethefailingFRU(donotisolate
FRUsthathavenodefects).
Verifythatallattacheddevicesaresupportedbythecomputer.
Verifythatthepowersupplybeingusedatthetimeofthefailureisoperatingcorrectly.(See“Powersystem
checkout”onpage41.)
1.Turnoffthecomputer.
2.VisuallycheckeachFRUfordamage.ReplaceanydamagedFRU.
3.Removeordisconnectallofthefollowingdevices:
a.Non-ThinkPaddevices
b.Devicesattachedtothedockingstationortheportreplicator
c.Printer,mouse,andotherexternaldevices
d.Batterypack
e.Harddiskdrive
f.Externaldiskettedriveoropticaldrive
g.DIMM
h.Opticaldiskordisketteintheinternaldrive
i.PCCards
4.Turnonthecomputer.
58HardwareMaintenanceManual
- HardwareMaintenanceManual 1
- Contents 3
- Chapter9.Locations........127 4
- Aboutthismanual 5
- Chapter1.Safetyinformation 7
- Electricalsafety 8
- Safetyinspectionguide 9
- Groundingrequirements 10
- Chapter1.Safetyinformation5 11
- 6HardwareMaintenanceManual 12
- .Safetyinformation7 13
- 8HardwareMaintenanceManual 14
- Chapter1.Safetyinformation9 15
- Chapter1.Safetyinformation11 17
- .Safetyinformation13 19
- 14HardwareMaintenanceManual 20
- .Safetyinformation15 21
- 16HardwareMaintenanceManual 22
- .Safetyinformation17 23
- 18HardwareMaintenanceManual 24
- .Safetyinformation19 25
- 20HardwareMaintenanceManual 26
- Chapter1.Safetyinformation21 27
- Chapter1.Safetyinformation23 29
- .Safetyinformation25 31
- 26HardwareMaintenanceManual 32
- Chapter1.Safetyinformation27 33
- .Safetyinformation29 35
- 30HardwareMaintenanceManual 36
- StrategyforreplacingFRUs 37
- Howtouseerrormessage 38
- Productdenition 38
- UsingtheHMM 40
- 34HardwareMaintenanceManual 40
- Chapter3.Generalcheckout 41
- Checkoutguide 42
- Testingthecomputer 43
- Chapter3.Generalcheckout39 45
- PC-DoctorforRescueandRecovery 46
- FRUtests 46
- Powersystemcheckout 47
- CheckingtheACadapter 47
- Checkingoperationalcharging 48
- Checkingthebatterypack 48
- Checkingthebackupbattery 49
- 44HardwareMaintenanceManual 50
- ©CopyrightLenovo 51
- Passwords 53
- Power-onpassword 53
- Hard-diskpassword 53
- Supervisorpassword 53
- Powermanagement 54
- Screenblankmode 55
- Sleep(standby)mode 55
- Hibernationmode 55
- Symptom-to-FRUindex 56
- Numericerrorcodes 57
- 52HardwareMaintenanceManual 58
- .Relatedserviceinformation53 59
- 54HardwareMaintenanceManual 60
- Errormessages 61
- Beepsymptoms 62
- No-beepsymptoms 63
- LCD-relatedsymptoms 63
- Intermittentproblems 64
- Undeterminedproblems 64
- 60HardwareMaintenanceManual 66
- Chapter5.Statusindicators 67
- 62HardwareMaintenanceManual 68
- .Statusindicators63 69
- 64HardwareMaintenanceManual 70
- Chapter6.Fnkeycombinations 71
- 66HardwareMaintenanceManual 72
- .Fnkeycombinations67 73
- 68HardwareMaintenanceManual 74
- Screwnotices 75
- Retainingserialnumbers 76
- RetainingtheUUID 77
- 72HardwareMaintenanceManual 78
- 1010Batterypack 81
- •“1010Batterypack”onpage75 82
- Attention: 82
- 76HardwareMaintenanceManual 82
- .RemovingandreplacingaFRU77 83
- 1040DIMM 84
- .RemovingandreplacingaFRU79 85
- 80HardwareMaintenanceManual 86
- .RemovingandreplacingaFRU81 87
- 82HardwareMaintenanceManual 88
- •1010Batterypack 89
- .RemovingandreplacingaFRU83 89
- 84HardwareMaintenanceManual 90
- 1070Keyboard 91
- 86HardwareMaintenanceManual 92
- .RemovingandreplacingaFRU87 93
- 88HardwareMaintenanceManual 94
- 1080Backupbattery 95
- 90HardwareMaintenanceManual 96
- .RemovingandreplacingaFRU91 97
- 92HardwareMaintenanceManual 98
- .RemovingandreplacingaFRU93 99
- .RemovingandreplacingaFRU95 101
- 96HardwareMaintenanceManual 102
- .RemovingandreplacingaFRU97 103
- •“1070Keyboard”onpage85 105
- .RemovingandreplacingaFRU99 105
- 1150LCDunit 106
- .RemovingandreplacingaFRU101 107
- 102HardwareMaintenanceManual 108
- .RemovingandreplacingaFRU105 111
- 106HardwareMaintenanceManual 112
- .RemovingandreplacingaFRU107 113
- 108HardwareMaintenanceManual 114
- .RemovingandreplacingaFRU109 115
- 2010LCDbezelassembly 118
- .RemovingandreplacingaFRU113 119
- 2020LCDlatchLandR 120
- .RemovingandreplacingaFRU115 121
- 2040LEDsubcard 122
- .RemovingandreplacingaFRU117 123
- 2050LCDpanel 124
- 2060LCDcable 126
- 2070Hingekit 127
- 122HardwareMaintenanceManual 128
- 2080LEDcable 129
- 126HardwareMaintenanceManual 132
- Chapter9.Locations 133
- Rearview 134
- Bottomview 135
- 130HardwareMaintenanceManual 136
- Chapter10.Partslist 137
- 132HardwareMaintenanceManual 138
- .Partslist133 139
- 134HardwareMaintenanceManual 140
- .Partslist135 141
- 136HardwareMaintenanceManual 142
- .Partslist137 143
- 138HardwareMaintenanceManual 144
- .Partslist139 145
- 140HardwareMaintenanceManual 146
- .Partslist141 147
- 142HardwareMaintenanceManual 148
- .Partslist143 149
- 144HardwareMaintenanceManual 150
- .Partslist145 151
- 146HardwareMaintenanceManual 152
- .Partslist147 153
- 148HardwareMaintenanceManual 154
- .Partslist149 155
- 150HardwareMaintenanceManual 156
- .Partslist151 157
- 152HardwareMaintenanceManual 158
- .Partslist153 159
- 154HardwareMaintenanceManual 160
- .Partslist155 161
- 156HardwareMaintenanceManual 162
- .Partslist157 163
- 158HardwareMaintenanceManual 164
- .Partslist159 165
- .Partslist161 167
- 162HardwareMaintenanceManual 168
- .Partslist163 169
- 164HardwareMaintenanceManual 170
- .Partslist165 171
- 166HardwareMaintenanceManual 172
- .Partslist167 173
- 168HardwareMaintenanceManual 174
- .Partslist169 175
- 170HardwareMaintenanceManual 176
- .Partslist171 177
- 172HardwareMaintenanceManual 178
- .Partslist173 179
- Keyboard 180
- Miscellaneousparts 181
- 176HardwareMaintenanceManual 182
- .Partslist177 183
- ACadapters 184
- Powercords 184
- Recoverydiscs 185
- Chapter10.Partslist181 187
- Chapter10.Partslist183 189
- Chapter10.Partslist185 191
- Windows7HomeBasic(32bit)DVDs 193
- Chapter10.Partslist189 195
- Chapter10.Partslist191 197
- Chapter10.Partslist193 199
- Commonservicetools 201
- 196HardwareMaintenanceManual 202
- Trademarks 204
- *45M2271_04* 206
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