Lenovo B470e Notebook - Manual (Page 59)

Remove the screw 9 and then remove the power board 10 .
10
9
Step Screw (quantity) Color Torque
9 M2 × 3 mm, flat-head, nylon-coated (1) Black 1.6 kgfcm
1100 System board assembly
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.
• At every point in the process, be sure not to drop or stack the system board.
• If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or a corrugated
conductive surface.
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 44
• “1020 Dummy card” on page 44
• “1030 Bottom slot cover” on page 45
• “1040 Hard disk drive” on page 45
• “1050 Optical drive” on page 46
• “1060 Memory modules” on page 47
• “1070 PCI Express Mini Card for wireless LAN/WAN” on page 48
• “1080 Keyboard” on page 49
• “1090 Keyboard bezel” on page 51
Chapter 7 . Removing and replacing a FRU 53