Lenovo Z50-70 Hardware Maintenance Manual - Lenovo G50-30, G50-45, G50-70, Z50 - 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 Checking the battery pack 22 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 Administrator 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 25 Lenovo G50-30/G50-45/G50-70/ G50-70m/Z50-70/Z50-75 26 Specifications 26 Status indicators 29 Hotkeys 30 FRU replacement notices 31 Screw notices 31 Removing and replacing an FRU 32 1010 Battery pack 33 1020 Base cover 34 1030 Optical drive 36 1040 Hard disk drive 37 1050 PCI Express Mini Card for wireless LAN......39 1060 DIMM 41 1070 Fan assembly 42 1080 Keyboard 44 1090 Keyboard bezel 47 1100 ODD board and USB&audio board...........50 1110 System board 54 1120 Heat sink assembly 57 1130 Speakers and DC-in cable 58 1140 LCD unit 60 1150 LCD front bezel, LCD panel, and hinges......62 1160 Camera 65 1170 LCD cable and antenna assembly............67 Locations 68 Front view and right-side view 68 Bottom and Left-side view 69 Parts list 70 Overall 71 LCD FRUs 79 Keyboard 81 Miscellaneous parts 83 AC adapters 84 Screw 84 Power cords 85 Notices 88 Trademarks 89 iii