Lenovo B490 Notebook Bedienungsanleitung PDF herunterladen (Seite 52)

Insertascrewdriverintothescrewhole2andpushtheopticaldriveinthedirectionshownbythearrow3.

Thenremovetheopticaldrive.

Removalstepsofopticaldrivebezelandopticaldrivebracket

Removethescrew1andthenremovetheopticaldrivebracket.

StepScrew(quantity)Color

Torque

M2×3mm,at-head,nylon-coated(1)

Black

1.85kgf-cm

1040Memorymodules

Foraccess,removetheseFRUsinorder:

•“1010Batterypack”onpage44

•“1020Bottomslotcover”onpage44

46HardwareMaintenanceManual

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 103 104

HardwareMaintenanceManual 1
FourthEdition(April2013) 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 40
Supervisorpassword 40
Powermanagement 40
Screenblankmode 40
Sleepmode 40
Hibernationmode 41
36HardwareMaintenanceManual 42
Specications 43
Statusindicators 44
Fnkeycombinations 45
40HardwareMaintenanceManual 46
Screwnotices 47
Generalguidelines 49
1010Batterypack 50
1020Bottomslotcover 50
1030Opticaldrive 51
1040Memorymodules 52
1050Harddiskdriveassembly 53
StepScrew(quantity)Color 55
1.85kgf-cm 55
1070mSATAsolid-statedrive 56
1080Backupbattery 57
1090Keyboard 57
4.0kgf-cm 58
.RemovingandreplacingaFRU53 59
1100Keyboardbezel 60
Removalstepsofkeyboardbezel 61
Removethescrew3 61
.RemovingandreplacingaFRU55 61
1110LEDboard 62
1120Powerboard 63
1130Microphoneassembly 64
1140Mediacardreaderslotboard 65
.RemovingandreplacingaFRU61 67
1160Thermalmodule 68
Removalstepsofthermalmodule 69
Detachthefanconnector1 69
Loosenthescrews2to8 69
.RemovingandreplacingaFRU63 69
64HardwareMaintenanceManual 70
1170Microprocessor 71
1180LCDunit 72
1190Speakerassembly 74
2010LCDfrontbezel 77
2020Camera 78
3.Thenremovethehinges4 80
76HardwareMaintenanceManual 82
Chapter8.Locations 83
Right-sideview 84
Bottomandleft-sideview 84
Chapter9.Partslist 85
.Partslist81 87
82HardwareMaintenanceManual 88
.Partslist83 89
84HardwareMaintenanceManual 90
Chapter9.Partslist85 91
Keyboard 92
.Partslist87 93
88HardwareMaintenanceManual 94
Miscellaneousparts 95
90HardwareMaintenanceManual 96
Powercords 97
92HardwareMaintenanceManual 98
.Partslist93 99
94HardwareMaintenanceManual 100
AppendixA.Notices 101
Electronicemissionsnotices 102
Trademarks 102
PartNumber: 104
PrintedinChina 104
(1P)P/N: 104

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