Lenovo B50-30 Notebook - Manual (Page 3)

iii
About this manual........................................iv
Safety information.........................................1
General safety ...................................................... 2
Electrical safety .................................................... 3
Safety inspection guide ...................................... 5
Handling devices that are sensitive to electro‐
static 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 Recov‐
ery 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 B50-30/B50-30 Touch/B50-45/B50-70
27
Specifications ..................................................... 27
Status indicators ................................................ 29
Fn key combinations ......................................... 30
Hotkeys ............................................................... 30
FRU replacement notices.................................. 31
Screw notices................................................ 31
Removing and replacing an FRU.................... 32
1010 Battery pack......................................... 33
1020 Optical drive ....................................... 34
1030 Bottom slot cover ................................ 36
1040 Hard disk drive ................................... 37
1050 DIMM ................................................... 39
1060 PCI Express Mini Card for wireless
LAN/WAN.................................................... 40
1070 Keyboard.............................................. 41
1080 Keyboard bezel ................................... 43
1090 Finger print and power board .......... 45
1100 USB board and ODD board............... 47
1110 Led board ............................................. 48
1120 Docking board (on select models).... 49
1130 System board ....................................... 50
1140 Fan and heat sink assembly .............. 53
1150 Speakers and battery board............... 54
1160 LCD unit and base cover ................... 55
1170 LCD front bezel................................... 59
1180 LCD panel ............................................ 60
1190 LCD hinges .......................................... 62
1200 Antenna, LCD cable, and integrated
camera ........................................................... 63
Locations ............................................................. 65
Front view..................................................... 65
Right‐side view ............................................ 66
Bottom and left‐side view .......................... 67
Parts list............................................................... 68
Overall ........................................................... 69
LCD FRUs ..................................................... 73
Keyboard....................................................... 75
Miscellaneous parts ..................................... 78
AC adapters.................................................. 79
Screws............................................................ 79
Power cords .................................................. 80
Notices .........................................................83
Trademarks......................................................... 84
Contents