Lenovo B475e, Hardware Maintenance Manual, Page: 71 / 98

1160 Speaker assembly
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 43
• “1020 Bottom slot cover” on page 44
• “1030 Hard disk drive” on page 45
• “1040 Optical drive” on page 47
• “1050 Memory modules” on page 47
• “1060 PCI Express Mini Card for wireless LAN” on page 48
• “1070 Backup battery” on page 49
• “1080 Keyboard” on page 50
• “1090 Keyboard bezel” on page 52
• “1130 System board assembly” on page 58
• “1140 LCD unit” on page 60
Removal steps of speaker assembly
Remove the screws 1 . Then remove the speaker assembly 2 .
1
1
2
2
Step Screw (quantity) Color Torque
1
M2 × 5 mm, flat-head, nylon-coated (2)
Black 4.0 kgfcm
1170 DC-in sub card and base cover
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 43
• “1020 Bottom slot cover” on page 44
• “1030 Hard disk drive” on page 45
• “1040 Optical drive” on page 47
• “1050 Memory modules” on page 47
• “1060 PCI Express Mini Card for wireless LAN” on page 48
• “1070 Backup battery” on page 49
• “1080 Keyboard” on page 50
• “1090 Keyboard bezel” on page 52
• “1130 System board assembly” on page 58
• “1140 LCD unit” on page 60
Chapter 7
.
Removing and replacing a FRU
65