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Lenovo E49 User Manual Page 4
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ii
Hardwar
e
Maintenance
Manual
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HardwareMaintenanceManual
1
SecondEdition(May2012)
2
©CopyrightLenovo2012
2
Contents
3
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
Chapter1.Safetyinformation19
25
20HardwareMaintenanceManual
26
.Safetyinformation21
27
22HardwareMaintenanceManual
28
.Safetyinformation23
29
24HardwareMaintenanceManual
30
.Safetyinformation25
31
26HardwareMaintenanceManual
32
StrategyforreplacingFRUs
33
Currentororiginalpart
34
ReplacementFRU
34
MustbeRoHSMustbeRoHS
34
Chapter3.Generalcheckout
35
Powersystemcheckout
36
Checkingtheacpoweradapter
36
Checkingoperationalcharging
37
Checkingthebatterypack
37
32HardwareMaintenanceManual
38
Recoveringthecomputersettings
39
Passwords
39
Power-onpassword
39
Supervisorpassword
39
Powermanagement
40
Screenblankmode
40
Sleepmode
40
Hibernationmode
40
36HardwareMaintenanceManual
42
Specications
43
Statusindicators
44
Fnkeycombinations
45
40HardwareMaintenanceManual
46
Screwnotices
47
Generalguidelines
49
1010Batterypack
50
1020Opticaldrive
50
StepScrew(quantity)Color
51
1.85kgfcm
51
1030Bottomslotcover
52
1040Memorymodules
52
1050Harddiskdriveassembly
53
48HardwareMaintenanceManual
54
4.0kgfcm
55
1070Thermalfanassembly
57
52HardwareMaintenanceManual
58
1080Microprocessor
59
1090Keyboard
60
Removalstepsofkeyboard
61
Removethescrews1
61
.RemovingandreplacingaFRU55
61
56HardwareMaintenanceManual
62
1100Keyboardbezel
63
Removalstepsofkeyboardbezel
64
Removethescrews4
64
58HardwareMaintenanceManual
64
1110Powerboard
65
1120Backupbattery
66
1130Systemboardassembly
67
1140LCDunit
68
1150DC-incableandbasecover
71
2010LCDfrontbezel
73
RemovalstepsofLCDfrontbezel
74
68HardwareMaintenanceManual
74
2020Integratedcamera
75
Chapter8.Locations
79
Right-sideview
80
Rearview
80
Bottomandleft-sideview
81
76HardwareMaintenanceManual
82
Chapter9.Partslist
83
78HardwareMaintenanceManual
84
.Partslist79
85
80HardwareMaintenanceManual
86
.Partslist81
87
82HardwareMaintenanceManual
88
Keyboard
89
Miscellaneousparts
89
Powercords
90
.Partslist85
91
86HardwareMaintenanceManual
92
.Partslist87
93
88HardwareMaintenanceManual
94
AppendixA.Notices
95
Electronicemissionsnotices
96
Trademarks
96
PartNumber:
98
PrintedinChina
98
(1P)P/N:
98
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