Table Of Contents - Lenovo M50-70 Hardware Maintenance Manual

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 . ............................26
Lenovo M50-70/M50-80 .............................. 27
Specifications ............................................... 27
Status indicators ........................................... 29
Fn key combinations..................................... 30
FRU replacement notices ............................. 31
Screw notices ..................................................31
Removing and replacing an FRU ................. 32
1010 Optical drive . ............................................33
1020 Keyboard .................................................35
1030 Base cover . ..............................................37
1040 Battery pack . ............................................40
1050 Hard disk drive . ........................................42
1060 PCI Express Mini Card for
wireless LAN . ....................................................44
1070 DIMM .......................................................46
1080 ODD board ..............................................48
1090 Docking board .........................................49
1100 Speakers . .................................................51
1110 Thermal module .......................................52
1120 USB board and finger print board ............53
1130 System board and touchpad module .......56
1140 Upper case and power board...................59
1150 LCD unit ...................................................62
1160 Antenna assembly....................................66
1170 LCD cable and integrated camera ...........67
Locations ...................................................... 69
Front view and right-side view ..........................69
Bottom and Left-side view ...............................70
Parts list . ....................................................... 71
Overall ..............................................................72
LCD FRUs ........................................................75
Keyboard ..........................................................77
Miscellaneous parts . .........................................79
AC adapters . .....................................................80
Screws . .............................................................80
Power cords . .....................................................81
Notices......................................................... 84
Trademarks .................................................. 85
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