Lenovo Flex 3-1120 Laptop Hardware Maintenance Manual - Lenovo Flex 3-1120 - Page 3

Contents About this manual iv Safety information 1 General safety 2 Electrical safety 3 Safety inspection guide 5 Handling devices that are sensitive to 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 Important notice for replacing a system board 17 Important information about replacing 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 Restoring the factory contents by using 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 Putting the computer to sleep or shutting it down 25 Putting your computer to sleep 25 Shutting down the computer 26 Lenovo Flex 3 28 Specifications 28 Status indicators 30 Fn key combinations 31 FRU replacement notices 32 Screw notices 32 Removing and replacing an FRU 33 1010 Base cover 34 1020 Battery pack 36 1030 Hard disk drive 37 1040 PCI Express Mini Card for wireless LAN 40 1050 LCD unit 42 1060 System board 44 1070 Speakers 47 1080 Power assembly, Touchpad module and IO board 48 1090 Heat sink assembly 49 1100 LCD front cover 50 1110 LCD panel, LCD cable, and hinges..........52 1120 LCD module 54 1130 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 65 Keyboard 67 Miscellaneous parts 70 Screw 70 AC adapters 71 Power cords 72 Notices 75 Trademarks 76 iii