Lenovo M490s Hardware Maintenance Manual - Lenovo M490s Notebook - Page 3

Contents, FRU replacement - keyboard

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Contents About this manual iii Chapter 1. Safety information 1 General safety 1 Electrical safety 1 Safety inspection guide 3 Handling devices that are sensitive to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations 4 Chapter 2. General checkout . . . . . 21 What to do first 21 Power system checkout 22 Checking the ac power adapter 22 Checking operational charging 23 Checking the battery pack 23 Chapter 3. Important service information 25 Recovering the computer settings 25 Using passwords 25 Power management 26 Screen blank mode 26 Sleep mode 26 Hibernation mode 27 Chapter 4. Status indicators . . . . . 29 Chapter 5. Fn key combinations . . . 31 Chapter 6. Locations 33 Locating computer controls, connectors, and indicators 33 Front view 33 Bottom view 34 Locating FRUs and CRUs 34 Major FRUs and CRUs 35 LCD FRUs and CRUs 36 Looking up FRU information 37 Chapter 7. FRU replacement notices 39 Important notice for replacing FRUs 39 Screw notices 40 Chapter 8. Removing or replacing a FRU 41 General guidelines 41 1010 Battery pack 42 1020 Bottom slot cover 42 1030 Memory modules 43 1040 Hard disk drive assembly 45 1050 PCI Express Mini Card for wireless LAN . . 46 1060 mSATA solid-state drive 47 1070 Backup battery 48 1080 Base cover 49 1090 Media card reader slot board 51 1110 Fingerprint board bracket and fingerprint board 52 1120 Thermal module assembly 54 1130 DC-in connector 56 1140 Power board 57 1150 System board assembly 59 1160 Touch pad assembly, speakers, keyboard bezel, and LCD unit 62 2010 LCD front bezel 64 2020 Camera and microphone board 65 2030 LCD panel, LCD cable, and hinges . . . . 66 2040 Antenna assembly and LCD rear cover . . . 68 Appendix A. Notices 71 Electronic emissions notices 72 Trademarks 72 © Copyright Lenovo 2013 i

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Contents
About this manual
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iii
Chapter 1. Safety information
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1
General safety
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1
Electrical safety
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1
Safety inspection guide
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3
Handling devices that are sensitive to electrostatic
discharge
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3
Grounding requirements
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4
Safety notices (multilingual translations)
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4
Chapter 2. General checkout
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21
What to do first
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21
Power system checkout
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22
Checking the ac power adapter
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22
Checking operational charging
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23
Checking the battery pack
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23
Chapter 3. Important service
information
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25
Recovering the computer settings
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25
Using passwords
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25
Power management
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26
Screen blank mode
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26
Sleep mode
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26
Hibernation mode
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27
Chapter 4. Status indicators
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29
Chapter 5. Fn key combinations
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31
Chapter 6. Locations
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33
Locating computer controls, connectors, and
indicators
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33
Front view
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33
Bottom view
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34
Locating FRUs and CRUs
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34
Major FRUs and CRUs
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35
LCD FRUs and CRUs
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36
Looking up FRU information
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37
Chapter 7. FRU replacement
notices
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39
Important notice for replacing FRUs
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39
Screw notices
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40
Chapter 8. Removing or replacing a
FRU
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41
General guidelines
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41
1010 Battery pack
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42
1020 Bottom slot cover
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42
1030 Memory modules
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43
1040 Hard disk drive assembly
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45
1050 PCI Express Mini Card for wireless LAN
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46
1060 mSATA solid-state drive
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47
1070 Backup battery
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48
1080 Base cover
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49
1090 Media card reader slot board
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51
1110 Fingerprint board bracket and fingerprint
board
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52
1120 Thermal module assembly
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54
1130 DC-in connector
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56
1140 Power board
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57
1150 System board assembly
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59
1160 Touch pad assembly, speakers, keyboard
bezel, and LCD unit
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62
2010 LCD front bezel
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64
2020 Camera and microphone board
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65
2030 LCD panel, LCD cable, and hinges
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66
2040 Antenna assembly and LCD rear cover .
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68
Appendix A. Notices
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71
Electronic emissions notices
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72
Trademarks
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72
© Copyright Lenovo 2013
i