1160 System Board - Lenovo ThinkPad T470 Hardware Maintenance Manual

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1160 System board

Important notices for handling the system board
When handling the system board, read the following:
• The system board has an accelerometer, which can be broken when several thousands of G-forces
are applied.
Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench
can subject the accelerometer to as much as 6000 G's of shock.
• 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 material.
Note: Before you start the servicing, disable the built-in battery. See "Disabling the built-in battery"
on page 64.
For access, remove these FRUs in order:
• "1010 Removable battery" on page 64
• "1020 Micro SIM card" on page 65
• "1030 Base cover assembly" on page 66
• "1040 Memory module" on page 68
• "1050 Internal storage drive" on page 69
• "1060 Wireless-WAN card" on page 73 or "1080 M.2 solid-state drive in the Wireless-WAN-card slot"
on page 76
• "1070 Wireless-LAN module or WiGig module" on page 74
• "1090 Keyboard" on page 77
• "1100 Coin-cell battery" on page 79
• "1110 Speaker assembly" on page 80
• "1120 Built-in battery" on page 81
• "1130 Smart-card reader assembly" on page 82
• "1140 I/O bracket and RJ45 bracket" on page 83
• "1150 Thermal fan assembly" on page 84
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T470 Hardware Maintenance Manual