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ThinkCentreE73
1
HardwareMaintenanceManual
1
FourthEdition(December2014)
2
Contents
3
Chapter1.Aboutthismanual
5
Chapter2.Safetyinformation
7
Voltage-selectionswitch
9
Safetyinspectionguide
9
Groundingrequirements
10
Chapter2.Safetyinformation7
11
.Safetyinformation9
13
Chapter2.Safetyinformation11
15
.Safetyinformation13
17
.Safetyinformation15
19
Chapter2.Safetyinformation17
21
≥18kg≥32kg≥55kg
23
.Safetyinformation21
25
Chapter2.Safetyinformation25
29
Chapter3.Generalinformation
33
Lenovoprograms
34
Chapter3.Generalinformation31
35
LenovoSupportWebsite
36
Chapter4.Generalcheckout
37
Basictroubleshooting
39
Troubleshootingprocedure
40
Troubleshooting
41
Audioproblems
41
NoaudioinWindows
42
CDproblems
43
DVDproblems
44
Intermittentproblems
45
Harddiskdriveproblems
45
Monitorproblems
48
Networkingproblems
49
AwirelessLANproblem
51
Bluetoothproblem
51
Optionproblems
52
Performanceandlockupproblems
52
Printerproblems
54
Serialportproblems
55
Softwareproblems
55
USBproblems
56
Diagnostics
57
LenovoSolutionCenter
57
UEFIdiagnosticprogram
57
Viewingandchangingsettings
59
Usingpasswords
59
Passwordconsiderations
60
Power-OnPassword
60
AdministratorPassword
60
HardDiskPassword
60
Enablingordisablingadevice
61
Selectingastartupdevice
62
EnablingErPLPScompliancemode
62
ExitingtheSetupUtilityprogram
63
Chapter7.Symptom-to-FRUindex
65
POSTerrorcodes
66
.Symptom-to-FRUindex63
67
Miscellaneouserrormessages
68
Undeterminedproblems
69
Chapter8.Locations
71
LocatingmajorFRUsandCRUs
73
Figure3.Componentlocations
74
LookingupFRUinformation
75
Locatingpartsonthesystemboard
76
Locatinginternaldrives
77
.Locations75
79
.Locations77
81
Installingexternaloptions
85
Installingorreplacinghardware
85
Replacingtherearfanassembly
93
Installingthesolid-statedrive
98
Replacingtheslimcardreader
101
Replacingthethermalsensor
107
Replacingthemicroprocessor
109
2onthemicroprocessor
111
Replacingthesystemboard
112
ReplacingtheWi-Fiunits
115
RemovingtheWi-Ficardmodule
117
InstallingtheWi-Fiunits
118
InstallingtherearWi-Fiantenna
121
RemovingtherearWi-Fiantenna
121
Replacingthekeyboardormouse
124
Completingthepartsreplacement
125
Obtainingdevicedrivers
126
10BF,and10BG)
127
Removingthecomputercover
128
1inwardandpivotthedrivebay
131
1asshownto
132
Replacingthebattery
134
Replacingtheharddiskdrive
135
Replacingtheopticaldrive
137
Replacingthesolid-statedrive
143
Replacingthesystemfanassembly
162
RemovingtheWi-Fiadaptercard
166
InstallingthefrontWiFiantenna
172
RemovingthefrontWi-Fiantenna
173
©CopyrightLenovo2013,2014
177
Powermanagement
180
AutomaticPower-onfeatures
180
AppendixA.Notices
181
Televisionoutputnotice
182
EuropeanconformanceCEmark
182
Trademarks
182
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