Lenovo M490s notebook - Manual (Page 3)

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
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