
iii
Contents
About this manual ....................................... iv
Safety information........................................ 1
Generalsafety................................................ 2
Electricalsafety.............................................. 3
Safetyinspectionguide.................................. 5
Handlingdevicesthataresensitiveto
electrostaticdischarge.................................... 6
Groundingrequirements................................. 6
Safetynotices:multilingualtranslations.......... 7
Lasercompliancestatement......................... 14
Important service information................... 16
StrategyforreplacingFRUs......................... 16
Strategyforreplacingaharddiskdrive............17
Importantnoticeforreplacinga
systemboard...................................................17
ImportantinformationaboutreplacingRoHS
compliantFRUs............................................ 18
General checkout ...................................... 19
Whattodorst............................................. 20
Powersystemcheckout................................ 21
CheckingtheACadapter.................................21
Checkingoperationalcharging.........................22
Checkingthebatterypack................................22
Related service information ...................... 23
Restoringthefactorycontentsbyusing
recoverysystem........................................... 23
Restoreoffactorydefault.................................23
Passwords.................................................... 24
Power-onpassword..........................................24
Hard-diskpassword..........................................24
Administratorpassword....................................24
Powermanagement..................................... 25
Puttingthecomputertosleepor
shuttingitdown.................................................25
Puttingyourcomputertosleep.........................25
Shuttingdownthecomputer.............................25
Lenovo ideapad 520S/320S ....................... 26
Specications............................................... 26
Statusindicators........................................... 28
Fnkeycombinations/Hotkeys....................... 29
FRUreplacementnotices............................. 30
Screwnotices..................................................30
RemovingandreplacinganFRU................. 31
1010Basecover...............................................32
1020Batterypack.............................................35
1030Solidstatedisk........................................36
1040Harddiskdrive.........................................37
1050DIMM.......................................................39
1060PCIExpressMiniCardfor
wirelessLAN.....................................................40
1070Fanandheatsinkassembly....................43
1080IOboard...................................................46
1090Speaker...................................................48
1100Fingerprintmodule
(Lenovoideapad520S-14IKB)
(onselectmodels)............................................49
1110
Systemboard............................................ 50
1120Uppercase...............................................52
1130DC-incable..............................................54
1140LCDunit...................................................55
1150LCDhinges..............................................58
1160EDPcableandintegratedcamera...........60
Locations...................................................... 62
Frontandright-sideview..................................62
Bottomandleft-sideview................................63
Partslist........................................................ 64
Overall..............................................................65
LCDFRUs........................................................75
Miscellaneousparts..........................................77
ACadapters......................................................77
Screws..............................................................79
Notices......................................................... 80
Trademarks.................................................. 81