Lenovo G50-45 Notebook Lenovo - Manual (Page 3)

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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