iii
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
............................................. 20
Power system checkout................................ 21
Checking the AC adapter .................................21
Checking operational charging .........................22
Checking the battery pack ................................22
Related service information ...................... 23
Restoring the factory contents by using
the Recovery system .................................... 23
Restore of factory default .................................23
Passwords .................................................... 24
Power-on password ..........................................24
Hard-disk password ..........................................24
Administrator password ....................................24
Power management ..................................... 25
Putting the computer to sleep or shutting
it down ..............................................................25
Putting your computer to sleep .........................25
Shutting down the computer .............................25
Lenovo Y520-15IKBM ................................. 26
............................................... 26
Status indicators ........................................... 28
Fn key combinations..................................... 29
FRU replacement notices ............................. 30
Screw notices ..................................................30
Removing and replacing an FRU ................. 31
1010 Base cover ...............................................32
1020 Battery pack .............................................35
1030 Solid state disk and hard disk drive .........36
1040 PCI Express Mini Card for wireless
LAN ...................................................................38
1050 DIMM .......................................................40
1060 Fan assembly ............................................ 41
1070 Heat Sink .................................................42
1080 Speakers .................................................44
1090 IO board ...................................................45
1100 Kensington lock board and DC-in
cable .................................................................46
1110 Touchpad button board ............................48
1120 System board ............................................ 49
1130 Upper case ...............................................51
1140 LCD unit ...................................................54
1150 LCD hinges ..............................................56
1160 EDP cable and integrated camera ...........58
Locations ...................................................... 60
Front and right-side view ..................................60
Bottom and left-side view ................................61
Parts list ........................................................ 62
Overall ..............................................................63
LCD FRUs ........................................................67
Miscellaneous parts ..........................................69
AC adapters ......................................................69
Screws ..............................................................69
Power cords ......................................................70
Notices......................................................... 73
Trademarks .................................................. 74