iii
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
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 ................. 22
Checking the battery pack ......................... 22
Related service information.......................23
Restore of factory default ........................... 24
Passwords........................................................... 24
Power-on password .................................... 24
Hard-disk password ................................... 25
Supervisor password .................................. 25
Power management .......................................... 26
Screen blank state ........................................ 26
Putting your computer to sleep................. 26
Shutting down the computer..................... 27
Lenovo B71-80 ............................................28
Specifications ..................................................... 28
Status indicators................................................. 30
Fn key combinations/Hotkeys ........................ 31
FRU replacement notices .................................. 32
Screw notices ................................................ 32
Removing and replacing an FRU .................... 33
1010 Hard disk drive (HDD)/Memory/
Mini PCI Express Card slot
compartment cover...................................... 34
1020 Hard disk drive ................................... 35
1030 DIMM ................................................... 37
1040 PCI Express Mini Card for
wireless LAN/WAN ................................... 38
1050 Keyboard.............................................. 40
1060 Optical drive........................................ 42
1070 Keyboard bezel ................................... 43
1080 System board ....................................... 46
1090 Fan assembly and Heat Sink
assembly........................................................ 50
1100 LCD unit............................................... 51
1110 Battery pack ......................................... 53
1120 Speakers, base cover, IO board,
DC-IN cable, power board and ODD
transfer board ............................................... 54
1130 LCD front bezel................................... 59
1140 LCD panel and LCD cable................. 60
1150 LCD hinges .......................................... 62
1160 Integrated camera ............................... 63
1170 Antenna assembly and
LCD cover ..................................................... 64
Locations ............................................................. 65
Front view..................................................... 65
Bottom and Left-side view ......................... 66
Right-side view ............................................ 67
Parts list............................................................... 68
Overall ........................................................... 69
LCD FRUs ..................................................... 72
Keyboard....................................................... 74
Miscellaneous parts ..................................... 77
Screws............................................................ 77
AC adapters.................................................. 77
Power cords .................................................. 78
Notices .........................................................81
Trademarks......................................................... 82
Contents