Lenovo W541 Technical Information Page 50
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Table8.Functionkeys(continued)
Functionkeyandkey
combination
Description
+
PressFn+EsctoenableordisabletheFnLockfunctionandswitchbetweendefault
modeandlegacymodeofusingthefunctionkeys.
•WhentheFnLockfunctionisdisabled:TheFnLockindicatorisoff(defaultmode).
Toinitiatethespecialfunctionofeachfunctionkey,pressthecorrespondingfunction
keydirectly.T oinputF1-F12,presstheFnkeyandthecorrespondingfunctionkey.
•WhentheFnLockfunctionisenabled:TheFnLockindicatorturnson(legacy
mode).ToinputF1-F12,pressthecorrespondingfunctionkeydirectly.Toinitiate
thespecialfunctionofeachfunctionkey,presstheFnkeyandthecorresponding
functionkey.
+
Controlsthekeyboardbacklight.
Therearethreemodesforthekeyboardbacklight:Off,Low,andHigh.Press
Fn+Spacebartochangethemodesofthekeyboardbacklight.
Fn+B
HasthesamefunctionastheBreakkeyonaconventionalkeyboard.
Fn+P
HasthesamefunctionasthePausekeyonaconventionalkeyboard.
Fn+SHasthesamefunctionastheSysRqkeyonaconventionalkeyboard.
Fn+K
HasthesamefunctionastheScrLKkeyonaconventionalkeyboard.
44HardwareMaintenanceManual
- 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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