Lenovo B50-50 Hardware Maintenance Manual
46
1090 System board
For access, remove these FRUs in order:
•
“1010 Keyboard” on page 33
•
“1020 Optical drive” on page 35
•
“1030 Base cover” on page 37
•
“1040 Battery pack” on page 39
•
“1050 Hard disk drive” on page 40
•
“1060 DIMM” on page 42
•
“1070 PCI Express Mini Card for wireless LAN/WAN” on page 43
Figure 9. Removal steps of system board
Detach the touch pad connector in the directions shown by arrows
and
.
Important notices for handling the system board:
When handling the system board, bear the following in mind.
•
Be careful not to drop the system board on a bench top that has a hard
surface, such as metal, wood, or composite.
•
Avoid rough handling of any kind.
•
In the whole process, make sure not to drop or stack the system board.
•
If you put a system board down, make sure to put it only on a padded
surface such as an ESD mat or conductive corrugated material.
a
b
2
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