Table of Contents
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Contents
About this manual ....................................... iv
Safety information ........................................ 1
General safety ................................................ 2
Electrical safety .............................................. 3
Safety inspection guide .................................. 5
electrostatic discharge .................................... 6
Grounding requirements ................................. 6
Safety notices: multilingual translations.......... 7
Laser compliance statement......................... 14
Important service information ................... 16
Strategy for replacing FRUs ......................... 16
Strategy for replacing a hard disk drive ............17
board ................................................................17
RoHS compliant FRUs ................................. 18
General checkout ...................................... 19
What to do first ............................................. 20
Power system checkout................................ 21
Checking the AC adapter .................................21
Checking operational charging .........................21
Related service information ...................... 23
OneKey Recovery ........................................ 23
Restore of factory default .................................23
Passwords .................................................... 24
Power-on password ..........................................24
Hard-disk password ..........................................24
Supervisor password ........................................24
Power management ..................................... 25
Screen blank state ............................................25
down .................................................................25
Putting your computer to sleep .........................25
Shutting down the computer .............................26
Lenovo S21e ............................................... 28
Specifications ............................................... 28
Status indicators ........................................... 30
Fn key combinations..................................... 31
FRU replacement notices ............................. 32
Screw notices ..................................................32
Removing and replacing an FRU ................. 33
1010 Keyboard .................................................34
1020 Keyboard bezel ........................................36
1030 Battery pack .............................................40
LAN ...................................................................41
1050 Power assembly ......................................43
1060 System board ..........................................44
1070 Speakers, base cover and IO board ........47
1080 LCD unit ...................................................49
1090 LCD front cover .......................................51
1100 LCD panel, LCD cable and hinges...........53
1110 Integrated camera ....................................55
1120 Antenna assembly and LCD cover...........56
Locations ...................................................... 57
Front view and right-side view ..........................57
Bottom and Left-side view ...............................58
Parts list ........................................................ 59
Overall ..............................................................60
LCD FRUs ........................................................63
Keyboard ..........................................................65
Miscellaneous parts ..........................................67
Screw ................................................................67
AC adapters ......................................................68
Power cords ......................................................69
Notices......................................................... 72
Trademarks .................................................. 73
iii
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