Lenovo B70-80 Laptop Hardware Maintenance Manual - Lenovo B70-80 Laptop - 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 Recovery Disc Set 23 Start Recovery Disc (one disc 23 Operating System Recovery Disc (one or more discs 23 Applications and Drivers Recovery Disc (one or more discs 23 Supplemental Recovery Disc 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 Lenovo B70-80 27 Specifications 27 Status indicators 29 Hotkeys 31 FRU replacement notices 32 Screw notices 32 Removing and replacing an FRU 33 1010 Battery pack 34 1020 Dummy card 35 1030 Hard disk drive(HDD)/Memory/ Mini PCI Express Card slot compartment cover 36 1040 Hard disk drive 37 1050 DIMM 40 1060 PCI Express Mini Card for wireless LAN/WAN 41 1070 Optical drive 43 1080 Fan assembly 45 1090 Keyboard 46 1100 Keyboard bezel 50 1110 System board 54 1120 LCD unit 58 1130 Heat Sink assembly 61 1140 Base cover and LED board 62 1150 LCD front bezel 67 1160 LCD panel, LCD cable and hinges 68 1170 Integrated camera 72 Locations 73 Front view 73 Right-side view 74 Bottom and Left-side view 75 Parts list 76 Overall 77 LCD FRUs 81 Keyboard 83 Miscellaneous parts 85 AC adapters 86 Screws 86 Power cords 87 Notices 90 Trademarks 91 iii