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iii
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
Using recovery discs................................... 23
Passwords........................................................... 24
Power-on password.................................... 24
Supervisor password.................................. 24
Power management .......................................... 25
Screen blank mode ...................................... 25
Sleep (standby) mode ................................. 25
Hibernation mode....................................... 26
Lenovo B575................................................27
Specifications ..................................................... 27
Status indicators ................................................ 29
Fn key combinations......................................... 31
FRU replacement notices.................................. 32
Screw notices................................................ 32
Removing and replacing an FRU.................... 33
1010 Battery pack......................................... 34
1020 Dummy card ....................................... 35
1030 Hard disk drive(HDD)/Memory/Mini
PCI Express Card slot compartment
cover ..............................................................36
1040 Hard disk drive...................................37
1050 Optical drive........................................38
1060 DIMM...................................................39
1070 PCI Express Mini Card for wireless
LAN/WAN ..................................................40
1080 Keyboard..............................................42
1090 Keyboard bezel ...................................45
1100 System board.......................................49
1110 LCD unit...............................................52
1120 Fan assembly and Heat Sink
assembly........................................................54
1130 Base cover, speakers and bluetooth
card ................................................................56
1140 LCD front bezel...................................58
1150 LCD panel, LCD cable and hinges...59
1160 Integrated camera...............................62
1170 Antenna assembly and LCD cover...63
Locations.............................................................64
Front view.....................................................64
Right-side view ............................................65
Bottom and Left-side view .........................66
Parts list...............................................................67
Overall...........................................................68
LCD FRUs.....................................................72
Keyboard.......................................................74
Miscellaneous parts.....................................76
AC adapters..................................................77
Power cords..................................................78
Notices.........................................................81
Trademarks.........................................................82
Contents