Lenovo B490 Hardware Maintenance Manual - Page 74

Speaker assembly

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Remove the LCD unit in the direction shown by the arrow 2 . 2 1190 Speaker assembly 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 • "1130 Microphone assembly" on page 58 • "1140 I/O board" on page 59 • "1150 System board assembly and USB board" on page 60 • "1180 LCD unit" on page 66 68 Hardware Maintenance Manual

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Remove the LCD unit in the direction shown by the arrow
2
.
2
1190 Speaker assembly
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
•
“1130 Microphone assembly” on page 58
•
“1140 I/O board” on page 59
•
“1150 System board assembly and USB board” on page 60
•
“1180 LCD unit” on page 66
68
Hardware Maintenance Manual