Lenovo E50-80, Hardware Maintenance Manual, Page: 3 / 92

Contents
About this manual. . . . . . . . . . . iii
Chapter 1. Safety information . . . . . 1
General safety . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . 2
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . .
3
Grounding requirements . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . 4
Chapter 2. Important service
information . . . . . . . . . . . . . .
19
Strategy for replacing FRUs . . . . . . . . . 19
Strategy for replacing a hard disk drive or a
solid-state drive . . . . . . . . . . . .
19
Important notice for replacing a system
board . . . . . . . . . . . . . . . .
20
FRU identification. . . . . . . . . . . . 20
Chapter 3. General checkout . . . . . 21
What to do first . . . . . . . . . . . . . . 21
Power system checkout . . . . . . . . . . . 22
Checking the ac power adapter . . . . . . 22
Checking the external battery pack and the
operational charging
. . . . . . . . . . 23
Chapter 4. Related service
information . . . . . . . . . . . . . .
25
Restoring the factory contents by using OneKey
Recovery . . . . . . . . . . . . . . . . .
25
Power management . . . . . . . . . . . . 25
Screen blank mode (for the Windows 7
operating system only) . . . . . . . . . .
25
Sleep mode . . . . . . . . . . . . . . 25
Hibernation mode . . . . . . . . . . . 26
Chapter 5. Passwords . . . . . . . . . 27
Power-on password . . . . . . . . . . . . 27
Hard disk password . . . . . . . . . . . . 27
Administrator password . . . . . . . . . . . 27
Chapter 6. Status indicators . . . . . 29
Chapter 7. Function keys . . . . . . . 31
Chapter 8. Locations . . . . . . . . . 33
Locating FRUs and CRUs . . . . . . . . . . 33
Major FRUs and CRUs. . . . . . . . . . 34
LCD FRUs . . . . . . . . . . . . . . 40
Miscellaneous parts and other FRUs . . . . 41
Chapter 9. FRU replacement
notices . . . . . . . . . . . . . . . .
49
Screw notices . . . . . . . . . . . . . . . 49
Chapter 10. Removing or replacing a
FRU . . . . . . . . . . . . . . . . . .
51
General guidelines . . . . . . . . . . . . . 51
1010 External battery pack . . . . . . . . . . 52
1020 Keyboard . . . . . . . . . . . . . . 52
1030 Optical disk drive . . . . . . . . . . . 54
1040 Base cover assembly . . . . . . . . . . 56
1050 Hard disk drive or solid-state hybrid drive . . 58
1060 Wireless-LAN /Bluetooth card . . . . . . 59
1070 Memory module . . . . . . . . . . . . 60
1080 Upper case . . . . . . . . . . . . . . 61
1090 Audio board, audio board cable, power
board, touch pad board cable, finger printer board,
LED board and ODD switch board . . . . . . .
63
1100 System board . . . . . . . . . . . . . 66
1110 Battery Board, Thermal fan assembly and
Heat Sink assembly. . . . . . . . . . . . .
69
1120 Speaker assembly, docking LED lens and
docking bracket . . . . . . . . . . . . . .
72
1130 LCD unit, docking board, docking cable and
DC-in cable . . . . . . . . . . . . . . . .
73
1140 LCD front bezel . . . . . . . . . . . . 76
1150 LCD panel, EDP cable and hinges . . . . . 76
1160 Integrated camera and LCD cable . . . . . 78
1170 Antenna assembly and LCD cover . . . . . 79
Appendix A. Notices . . . . . . . . . . 81
Electronic emissions notices . . . . . . . . . 82
Trademarks . . . . . . . . . . . . . . . . 82
Appendix B. Abbreviation table . . . . 83
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