iii
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 G770 ...............................................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........................................39
1060 DIMM ...................................................40
1070 PCI Express Mini Card for wireless
LAN/WAN ..................................................41
1080 Keyboard..............................................43
1090 Keyboard bezel ...................................45
1100 System board.......................................49
1110 LCD unit...............................................52
1120 Fan assembly and Heat Sink
assembly........................................................54
1130 CPU.......................................................56
1140 Base cover, speakers, bluetooth card
and power assembly....................................57
1150 LCD front bezel...................................60
1160 LCD panel, LCD cable and
hinges.............................................................61
1170 Integrated camera...............................64
1180 Antenna assembly and LCD
cover ..............................................................65
Locations.............................................................66
Front view.....................................................66
Right-side view ............................................67
Bottom and Left-side view .........................68
Parts list...............................................................69
Overall...........................................................70
LCD FRUs.....................................................75
Keyboard.......................................................77
Miscellaneous parts.....................................79
AC adapters..................................................80
Power cords..................................................81
Notices .........................................................84
Trademarks.........................................................85
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