Manual

Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Lasercompliancestatement(multilingual
translations)................19
Chapter2.Importantservice
information..............27
StrategyforreplacingFRUs.........27
Strategyforreplacingaharddiskdrive...28
Importantnoticeforreplacingasystem
board................28
ImportantinformationaboutreplacingRoHS
compliantFRUs..............28
Chapter3.Generalcheckout.....29
Whattodorst..............29
Powersystemcheckout...........30
Checkingtheacpoweradapter......30
Checkingoperationalcharging......31
Checkingthebatterypack........31
Chapter4.Relatedservice
information..............33
Recoveringthecomputersettings.......33
Passwords................33
Power-onpassword...........34
Supervisorpassword..........34
Powermanagement............34
Screenblankmode...........34
Sleepmode..............34
Hibernationmode...........35
Chapter5.LenovoB575e.......37
Specications...............37
Statusindicators..............38
Fnkeycombinations............39
Chapter6.FRUreplacement
notices................41
Screwnotices...............41
Chapter7.Removingandreplacinga
FRU..................43
Generalguidelines.............43
1010Batterypack.............44
1020Bottomslotcover...........44
1030Harddiskdrive............45
1040Opticaldrive.............47
1050Memorymodules...........48
1060PCIExpressMiniCardforwirelessLAN..49
1070Backupbattery............50
1080Keyboard..............51
1090Keyboardbezel............54
1100LEDboardandpowerboard.......58
1110Microphoneassembly.........59
1120I/OboardandRJ45Ethernetboard....59
1130Systemboardassembly.........63
1140LCDunit...............65
1150Thermalfanassembly.........67
1160Speakerassembly...........69
1170DC-insubcardandbasecover......70
2010LCDfrontbezel............72
2020Integratedcamera...........74
2030LCDpanel,LCDcable,andhinges....74
2040Antennaassembly...........76
Chapter8.Locations.........79
Frontview................79
Bottomview...............80
Chapter9.Partslist..........81
Overall..................82
LCDFRUs................84
Keyboard.................86
Miscellaneousparts............89
acpoweradapters.............89
Powercords...............89
AppendixA.Notices..........93
Electronicemissionsnotices.........94
Trademarks................94
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