Lenovo U300e Laptop IdeaPad U300e Hardware Maintenance Manual - 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 Using recovery discs 23 Passwords 24 Power-on password 24 Supervisor password 24 Power management 25 Screen blank mode 25 Sleep (standby) mode 25 Hibernation mode 26 Lenovo IdeaPad U300e 27 Specifications 27 Status indicators 29 Function key combinations 30 FRU replacement notices 31 Screw notices 31 Removing and replacing an FRU 32 1010 Base cover 33 1020 Battery pack 35 1030 Hard disk drive 36 1040 DIMM 37 1050 PCI Express Mini Card for wireless LAN 38 1060 Fan assembly and Heat Sink assembly 40 1070 System board 42 1080 Speakers and microphone 45 1090 LCD unit 47 1100 Keyboard and keyboard bezel 49 Locations 53 Front view 53 Right-side view 54 Bottom and Left-side view 54 Parts list 55 Overall 56 Keyboard 59 Miscellaneous parts 61 AC adapters 62 Power cords 63 Notices 68 Trademarks 69 iii