Contents
About this manual ....................................... iv
1050 PCI Express Mini Card for wireless LAN .....39
1060 DIMM .......................................................41
Safety information ........................................ 1
1070 Fan assembly ..........................................42
General safety ................................................ 2
1080 Keyboard .................................................44
Electrical safety .............................................. 3
1090 Keyboard bezel ......................................... 47
1100 USB&audio board ....................................50
Safety inspection guide .................................. 5
1110 System board ............................................ 52
Handling devices that are sensitive to
1120 Heat sink assembly ..................................55
electrostatic discharge .................................... 6
1130 Speakers and DC-in cable .......................56
Grounding requirements ................................. 6
1140 LCD unit ...................................................58
Safety notices: multilingual translations.......... 7
1150 LCD front bezel, LCD panel, and hinges .....60
Laser compliance statement......................... 14
1160 Camera ....................................................63
1170 LCD cable and antenna assembly ...........65
Locations ...................................................... 66
Important service information ................... 16
Front view and right-side view ..........................66
Strategy for replacing FRUs ......................... 16
Bottom and Left-side view ...............................67
Strategy for replacing a hard disk drive ............17
Parts list ........................................................ 68
Important notice for replacing a system board .....17
Overall ..............................................................69
Important information about replacing
LCD FRUs ........................................................79
RoHS compliant FRUs ................................. 18
Keyboard ..........................................................81
Miscellaneous parts ..........................................83
General checkout ...................................... 19
AC adapters ......................................................84
What to do first ............................................. 20
Screws ..............................................................84
Power system checkout................................ 21
Power cords ......................................................85
Checking the AC adapter .................................21
Checking operational charging .........................21
Notices......................................................... 88
Checking the battery pack ................................22
Trademarks .................................................. 89
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 G40-30/G40-45/G40-70/G40-70m/
Z40-70/Z40-75/G40-80 ................................. 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
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