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Lenovo B4400 Specifications Page 56
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Lenovo B4400 Ha
rdware Maintenance Man
ual
52
Figure 11. Rem
oval steps
of LCD unit (continu
ed)
Remove t
he LCD u
nit in
the direc
tion shown
by arr
ows
.
c
3
3
1
2
...
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Lenovo B4400
1
Contents
3
About this manual
4
General safety
6
Electrical safety
7
Safety inspection guide
9
Grounding requirements
10
Safety information
11
Laser compliance statement
18
Important service information
20
General checkout
23
What to do first
24
Power system checkout
25
Checking the battery pack
26
Related service information
27
Passwords
28
Power management
29
Status indicators
33
Fn key combinations
35
FRU replacement notices
36
Removing and replacing an FRU
37
1010 Battery pack
38
1050 Optical drive
44
1080 Keyboard
48
1090 Keyboard bezel
50
1100 System board
52
1130 CPU
58
1150 LCD front bezel
62
Locations
67
Right-side view
68
Parts list
70
Table 4. Parts list—Overall
72
14.0-in. HD TFT
76
Miscellaneous parts
80
Power cords
82
Trademarks
88
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