1180 Lcd Unit - Lenovo B490 Hardware Maintenance Manual

• "1100 Keyboard bezel" on page 54
• "1130 Microphone assembly" on page 58
• "1150 System board assembly and USB board" on page 60
• "1160 Thermal module" on page 62
Attention: The microprocessor is extremely sensitive. When you service the microprocessor, avoid any
kind of rough handling.
Removal steps of microprocessor
Rotate the head of the screw in the direction shown by the arrow
2
microprocessor .
When installing: Place the microprocessor above the microprocessor socket
the screw in the direction shown by the arrow

1180 LCD unit

For access, remove these FRUs in order:
• "1010 Battery pack" on page 44
• "1020 Bottom slot cover" on page 44
• "1030 Optical drive" on page 45
• "1040 Memory modules" on page 46
• "1050 Hard disk drive assembly" on page 47
• "1060 PCI Express Mini Card for wireless LAN" on page 49
• "1070 mSATA solid-state drive" on page 50
• "1080 Backup battery" on page 51
• "1090 Keyboard" on page 51
• "1100 Keyboard bezel" on page 54
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Hardware Maintenance Manual
1 to release the lock, then remove the
b to secure the microprocessor.
a , and then rotate the head of