Lenovo 305-15IHW Laptop Hardware Maintenance Manual - Ideapad 305 Laptop - 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 Recovery Disc Set 23 Passwords 24 Power-on password 24 Hard-disk password 24 Supervisor password 24 Power management 25 Screen blank state 25 Putting the computer to sleep or shutting it down 25 Lenovo ideapad 305-15IHW/305-15IBD/ 305-15IBY/305-15ABM 28 Specifications 28 Status indicators 30 Fn key combinations 31 Hotkeys 31 FRU replacement notices 32 Screw notices 32 Removing and replacing an FRU 33 1010 Battery pack 34 1020 Optical drive 35 1030 Bottom slot cover 37 1040 Hard disk drive 38 1050 DIMM 40 1060 PCI Express Mini Card for wireless LAN/WAN 41 1070 Keyboard 42 1080 Keyboard bezel 44 1090 Finger print (on select models) and power board 46 1100 USB board and ODD board 48 1110 Led board 49 1120 Docking board (on select models) ....... 50 1130 System board 51 1140 Fan and heat sink assembly 54 1150 Speakers and battery board 55 1160 LCD unit and base cover 56 1170 LCD front bezel 60 1180 LCD panel 61 1190 LCD hinges 63 1200 Antenna, LCD cable, and integrated camera 64 Locations 66 Front view 66 Right-side view 67 Bottom and left-side view 68 Parts list 69 Overall 70 LCD FRUs 86 Keyboard 88 Miscellaneous parts 97 AC adapters 98 Screws 98 Power cords 99 Notices 102 Trademarks 103 iii