Table of Contents
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Contents
About this manual ....................................... iv
Safety information ........................................ 1
General safety ................................................ 2
Electrical safety .............................................. 3
Safety inspection guide .................................. 5
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
board ................................................................17
compliant FRUs ............................................ 18
General checkout ...................................... 19
What to do first ............................................. 20
Power system checkout................................ 21
Checking the AC adapter .................................21
Checking operational charging .........................21
Related service information ...................... 23
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 IdeaPad U300/U300s/U400 ........... 27
Specifications ............................................... 27
Status indicators ........................................... 29
Function key combinations ........................... 31
FRU replacement notices ............................. 32
Screw notices ..................................................32
Removing and replacing an FRU ................. 33
1010 Base cover (U300) ...................................34
1020 Battery pack (U300) .................................36
1030 Hard disk drive (U300) .............................37
1040 DIMM (U300) ...........................................38
wireless LAN (U300) .........................................39
assembly (U300)...............................................41
1070 System board (U300) ...............................43
1080 Speakers and microphone (U300) ...........46
1090 LCD unit (U300) .......................................48
1010 Base cover (U300s) .................................54
1020 Battery pack (U300s) ...............................56
1030 Speakers (U300s) ....................................57
1040 Solid State Disk (U300s) .........................58
1050 USB Board (U300s) .................................59
wireless LAN (U300s) .......................................64
1080 LCD unit (U300s) .....................................66
1090 DIMM (U300s) .........................................68
assembly (U300s) .............................................69
1110 System board (U300s) ..............................72
1010 Base cover (U400) ...................................74
1020 Battery pack (U400) .................................76
1030 Hard disk drive (U400) .............................77
wireless LAN (U400) .........................................78
1050 System board (U400) ...............................80
1060 USB board and HDD board (U400) .........82
1070 Speakers and microphone (U400) ...........84
1080 Optical drive (U400) .................................86
1090 LCD unit (U400) .......................................87
assembly (U400)...............................................90
1120 DIMM (U400) ...........................................92
1130 LCD front bezel (U400) ............................93
LCD cable (U400) ............................................94
1150 Integrated camera (U400) ........................96
cover (U400) .....................................................97
Locations ...................................................... 98
Front view .........................................................98
Right-side view .................................................99
Bottom and Left-side view .............................100
Parts list ...................................................... 101
Overall ............................................................102
LCD FRUs ...................................................... 111
Keyboard ........................................................ 113
Miscellaneous parts ........................................ 116
AC adapters .................................................... 118
Power cords .................................................... 119
Notices....................................................... 127
Trademarks ................................................ 128
iii
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