Lenovo B575 Hardware Maintenance Manual - Page 3

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 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 iii