Lenovo Lenovo B5400 Touch, Hardware Maintenance Manual

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iii
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
Passwords .................................................... 25
Power-on password ..........................................25
Hard-disk password ..........................................25
Supervisor password ........................................25
Power management ..................................... 26
Screen blank state ............................................26
Putting the computer to sleep or shutting
it down ..............................................................26
Putting your computer to sleep .........................26
Shutting down the computer .............................27
Lenovo B5400/M5400/M5400 Touch .......... 28
Specifications ............................................... 28
Status indicators ........................................... 30
Fn key combinations..................................... 31
FRU replacement notices ............................. 32
Screw notices ..................................................32
Removing and replacing an FRU ................. 33
1010 Battery pack .............................................34
1020 Base cover ...............................................35
1030 Backup battery .........................................37
1040 Optical drive .............................................38
1050 Hard disk drive and solid
state disk...........................................................39
1060 PCI Express Mini Card for
wireless LAN .....................................................42
1070 DIMM .......................................................44
1080 Keyboard .................................................45
1090 Keyboard bezel ......................................... 47
1100 USB board and function board.................51
1110 System board ............................................ 53
1120 Fan assembly and heat
sink assembly ...................................................56
1130 CPU .........................................................58
1140 LCD unit ...................................................59
1150 LCD front bezel (B5400/M5400) ..............61
1160 LCD panel, LCD cable, antenna
assembly, and hinges (B5400/M5400) .............63
1170 LCD module, LCD cable, and
hinges (M5400 Touch) ......................................66
1180 Integrated camera ....................................68
Locations ...................................................... 69
Front view and right-side view ..........................69
Bottom and Left-side view ...............................71
Parts list ........................................................ 72
Overall ..............................................................73
LCD FRUs ........................................................77
Keyboard ..........................................................81
Miscellaneous parts ..........................................85
Screws ..............................................................85
AC adapters ......................................................86
Power cords ......................................................87
Notices......................................................... 92
Trademarks .................................................. 93