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Contents
About this manual........................................iv
1030 Hard disk drive(HDD)/Memory/
Mini PCI Express Card slot compartment
Safety information.........................................1
cover .............................................................. 36
General safety ...................................................... 2
1040 Hard disk drive ................................... 37
Electrical safety .................................................... 3
1050 Optical drive........................................ 39
Safety inspection guide ...................................... 5
1060 DIMM ................................................... 40
Handling devices that are sensitive to
1070 PCI Express Mini Card for wireless
electrostatic discharge......................................... 6
LAN/WAN .................................................. 41
Grounding requirements ................................... 6
1080 Keyboard.............................................. 43
Safety notices: multilingual translations.......... 7
1090 Keyboard bezel ................................... 45
Laser compliance statement............................. 14
1100 System board ....................................... 49
Important service information ...................16
1110 LCD unit............................................... 52
Strategy for replacing FRUs............................. 16
1120 Fan assembly and Heat Sink
Strategy for replacing a hard disk
assembly........................................................ 54
drive .............................................................. 17
1130 CPU....................................................... 56
Important notice for replacing a system
1140 Base cover, speakers, bluetooth card
board ............................................................. 17
and power assembly.................................... 57
Important information about replacing RoHS
1150 LCD front bezel................................... 60
compliant FRUs ................................................. 18
1160 LCD panel, LCD cable and
hinges............................................................. 61
General checkout ........................................19
1170 Integrated camera ............................... 64
What to do first .................................................. 20
1180 Antenna assembly and LCD
Power system checkout .................................... 21
cover .............................................................. 65
Checking the AC adapter........................... 21
Locations ............................................................. 66
Checking operational charging ................. 21
Front view ..................................................... 66
Checking the battery pack ......................... 22
Right-side view ............................................ 67
Bottom and Left-side view ......................... 68
Related service information .......................23
Parts list ............................................................... 69
Restoring the factory contents by using OneKey
Overall ........................................................... 70
Recovery ............................................................. 23
LCD FRUs ..................................................... 75
Restore of factory default ........................... 23
Keyboard....................................................... 77
Using recovery discs ................................... 23
Miscellaneous parts ..................................... 79
Passwords........................................................... 24
AC adapters.................................................. 80
Power-on password .................................... 24
Power cords .................................................. 81
Supervisor password .................................. 24
Power management .......................................... 25
Notices ......................................................... 84
Screen blank mode ...................................... 25
Trademarks......................................................... 85
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
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