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Notebooks - K49 Laptop (Lenovo) (1.21 mb)
Notebooks - K49 Laptop (Lenovo) (2.61 mb)
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Contents
About this manual. . . . . . . . . . .
iii
Chapter 7. Removing and replacing a
FRU . . . . . . . . . . . . . . . . . .
43
Chapter 1. Safety information . . . . . . 1
General guidelines . . . . . . . . . . . . .
43
General safety . . . . . . . . . . . . . . . .
1
1010 Battery pack . . . . . . . . . . . . .
44
Electrical safety . . . . . . . . . . . . . . .
2
1020 Bottom slot cover . . . . . . . . . . .
44
Safety inspection guide . . . . . . . . . . . .
3
1030 Optical drive or blank bezel . . . . . . .
45
Handling devices that are sensitive to electrostatic
1040 Memory modules . . . . . . . . . . .
46
discharge. . . . . . . . . . . . . . . . . .
3
1050 Hard disk drive assembly . . . . . . . .
47
Grounding requirements . . . . . . . . . . . .
4
1060 PCI Express Mini Card for wireless LAN . .
49
Safety notices (multilingual translations) . . . . . .
4
1070 mSATA solid-state drive (on some models) .
51
Laser compliance statement (multilingual
translations) . . . . . . . . . . . . . . . .
19
1080 Thermal module . . . . . . . . . . . .
52
1090 CPU . . . . . . . . . . . . . . . .
54
Chapter 2. Important service
1100 Keyboard . . . . . . . . . . . . . .
55
information . . . . . . . . . . . . . .
27
1110 Keyboard bezel . . . . . . . . . . . .
58
Strategy for replacing FRUs . . . . . . . . .
27
1120 Fingerprint board . . . . . . . . . . .
60
Strategy for replacing a hard disk drive . . .
28
1130 Function board and microphone . . . . .
61
Important notice for replacing a system
1140 Power board . . . . . . . . . . . . .
63
board . . . . . . . . . . . . . . . .
28
1150 Backup battery . . . . . . . . . . . .
63
Important information about replacing RoHS
1160 Speaker assembly . . . . . . . . . . .
64
compliant FRUs . . . . . . . . . . . . . .
28
1170 System board assembly. . . . . . . . .
66
Chapter 3. General checkout . . . . .
29
1180 LCD unit . . . . . . . . . . . . . . .
67
What to do first . . . . . . . . . . . . . .
29
1190 DC-in bracket, DC-in cable, USB bracket,
USB cable, and base cover. . . . . . . . . .
69
Power system checkout . . . . . . . . . . .
30
2010 LCD front bezel . . . . . . . . . . . .
71
Checking the ac power adapter . . . . . .
30
2020 Integrated camera . . . . . . . . . . .
73
Checking operational charging
. . . . . .
31
2030 LCD panel and LCD cable . . . . . . . .
73
Checking the battery pack . . . . . . . .
31
2040 Hinges
. . . . . . . . . . . . . . .
75
Chapter 4. Related service
2050 Antenna assembly and LCD cover . . . . .
76
information . . . . . . . . . . . . . .
33
Chapter 8. Locations . . . . . . . . .
79
Recovering the computer settings . . . . . . .
33
Front view . . . . . . . . . . . . . . . .
79
Passwords . . . . . . . . . . . . . . . .
33
Right-side view . . . . . . . . . . . . . .
80
Power-on password . . . . . . . . . . .
34
Bottom and left-side view . . . . . . . . . .
81
Supervisor password . . . . . . . . . .
34
Power management
. . . . . . . . . . . .
34
Chapter 9. Parts list . . . . . . . . . .
83
Screen blank mode . . . . . . . . . . .
34
Overall . . . . . . . . . . . . . . . . . .
84
Sleep mode . . . . . . . . . . . . . .
34
LCD FRUs . . . . . . . . . . . . . . . .
86
Hibernation mode
. . . . . . . . . . .
35
Keyboard . . . . . . . . . . . . . . . . .
88
Miscellaneous parts
. . . . . . . . . . . .
88
Chapter 5. ZhaoYang K49 . . . . . . .
37
ac power adapters . . . . . . . . . . . . .
88
Specifications . . . . . . . . . . . . . . .
37
Power cords
. . . . . . . . . . . . . . .
88
Status indicators . . . . . . . . . . . . . .
38
Fn key combinations . . . . . . . . . . . .
39
Appendix A. Notices . . . . . . . . . .
91
Electronic emissions notices . . . . . . . . .
92
Chapter 6. FRU replacement
Trademarks . . . . . . . . . . . . . . . .
92
notices . . . . . . . . . . . . . . . .
41
Screw notices . . . . . . . . . . . . . . .
41
© Copyright Lenovo 2012, 2013
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