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b
a
c
d
Antenna
location
a
Wireless
LAN
auxiliary
antenna
(black)
b
Wireless
W
AN
auxiliary
ant
enna
(blue)
c
Wireless
W
AN
main
ant
enna
(r
ed)
d
Wireless
LAN
main
ant
enna
(gr
ey)
Chapter
9
.
Removing
or
r
eplacing
a
FRU
103
1
2
...
104
105
106
107
108
109
110
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HardwareMaintenanceManual
1
ThirdEdition(November2014)
2
©CopyrightLenovo2013,2014
2
Contents
3
AppendixA.Notices.........105
4
Aboutthismanual
5
Chapter1.Safetyinformation
7
Safetyinspectionguide
8
Chapter1.Safetyinformation3
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
StrategyforreplacingFRUs
25
Howtouseerrormessage
26
Productdefinition
26
FRUidentification
26
22HardwareMaintenanceManual
28
Chapter3.Generalcheckout
29
Checkoutguide
30
LenovoSolutionCenter
30
Quicktestprograms
30
UEFIdiagnosticprogram
31
Bootablediagnosticprograms
31
Powersystemcheckout
32
Checkingtheacpoweradapter
33
Checkingthecoin-cellbattery
34
8.1only)
36
Refreshingyourcomputer
36
Creatingandusingrecoverymedia
38
Passwords
39
Power-onpassword
39
Harddiskpassword
39
Supervisorpassword
40
Powermanagement
41
Sleepmode
41
Hibernationmode
42
Symptom-to-FRUindex
42
Numericerrorcodes
43
Errormessages
44
Beepsymptoms
44
No-beepsymptoms
45
LCD-relatedsymptoms
45
Intermittentproblems
45
Undeterminedproblems
46
Chapter5.Statusindicators
47
42HardwareMaintenanceManual
48
Chapter6.Functionkeys
49
44HardwareMaintenanceManual
50
Chapter7.Locations
51
Rearview
52
Bottomview
52
LocatingFRUsandCRUs
53
MajorFRUs
54
.Locations49
55
50HardwareMaintenanceManual
56
LookingupFRUinformation
57
52HardwareMaintenanceManual
58
90degreesmore
59
(Cross-section)
59
180degreesmore
60
RetainingtheUUID
61
Generalguidelines
63
Commonservicetools
64
Beforeservicingthecomputer
64
RemovingtheSIMcard
64
1010Batterypack
64
1030Largebottomdoor
66
1050Opticaldrive
67
1060Memorymodule
68
1070Smallbottomdoor
69
1080WirelessLANcard
70
Black0.181Nm
72
1100Coin-cellbattery
73
1110Keyboard
74
.RemovingorreplacingaFRU69
75
70HardwareMaintenanceManual
76
Installationstepsofkeyboard
76
.RemovingorreplacingaFRU71
77
1120Keyboardbezelassembly
79
Removethescrews1
80
Wheninstalling:
80
74HardwareMaintenanceManual
80
Removalstepsofthecolorsensor
82
76HardwareMaintenanceManual
82
.RemovingorreplacingaFRU77
83
RemovalstepsoftheNFCcard
84
78HardwareMaintenanceManual
84
1150LCDunit
88
.RemovingorreplacingaFRU83
89
1160Magnesiumstructureframe
91
1170Speakerassembly
92
1180dc-incableassembly
93
1190Thermalfanassembly
94
2inascendingalphabetical
95
1200USBcard
96
1210Microprocessor
96
1220Systemboardandbasecover
97
.RemovingorreplacingaFRU93
99
2010LCDfrontbezel
100
Important:
101
StepScrew(quantity)Color
102
(1.85kgf-cm)
102
Black0.392Nm
103
(4.0kgf-cm)
103
.RemovingorreplacingaFRU99
105
104HardwareMaintenanceManual
110
AppendixA.Notices
111
Electronicemissionsnotices
112
Trademarks
112
AppendixB.Abbreviationtable
113
108HardwareMaintenanceManual
114
*1PSP40A26003_02*
116
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12 Mar 2025 | 05:44:50
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