1120 Base Cover Assembly And Lcd Unit - Lenovo E470 Hardware Maintenance Manual

• Do not touch the thermal grease.
• Do not press, touch, or rotate the fan impeller.
• Do not touch the fan inlet hole.
• Do not twist or pull the cable of the thermal fan assembly.
• Do not apply pressure on the top and bottom covers of the thermal fan assembly.
• Do not press the heat pipe. Hold both sides of the heat pipe if you must take the thermal fan assembly.
• Do not shake or drop the thermal fan assembly.
• Ensure that the fan connector is attached firmly.
• Replace the thermal fan assembly if you observe the following:
– The cover of the thermal fan assembly is deformed or damaged.
– There is abnormal noise during rotation.
When you install the system board:
Ensure that all the connectors are attached firmly to the system board.

1120 Base cover assembly and LCD unit

For access, remove these FRUs in order:
• "1010 Bottom cover" on page 65
• "1020 Internal storage drive" on page 66
• "1030 Memory module" on page 68
• "1040 Wireless LAN card" on page 69
• "1050 Coin-cell battery" on page 69
• "1060 Keyboard" on page 70
• "1070 Battery pack" on page 72
• "1080 Keyboard bezel assembly" on page 73
• "1090 Speaker assembly" on page 75
• "1110 System board and thermal fan assembly" on page 77
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E470, E470c, and E475 Hardware Maintenance Manual