Lenovo E50-70 Laptop Hardware Maintenance Manual - Lenovo E40-xx0, E50-xx - Page 86

LED board and ODD switch board on Loosentwoscrews, Loosen six screws, and one screw,

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Page 86 highlights

• "1030 Optical disk drive" on page 64 • "1040 Base cover assembly" on page 66 • "1050 Hard disk drive or solid-state hybrid drive" on page 68 • "1060 Wireless-LAN /Bluetooth card" on page 69 • "1080 Upper case" on page 71 • "1090 Audio board, audio board cable, power board, touch pad board cable, finger printer board, LED board and ODD switch board" on page 73 • "1100 System board" on page 76 Removal steps of the battery board Loosen two screws 1 and then remove the battery board in the direction shown by arrow 2 (E50). aa b Step 1 Screw (quantity) M2.0 × 3mm, flat-headed, nylon-coated (2) Removal steps of the thermal fan assembly Loosen six screws 3 and one screw 4 . c c c c cc Color Black d Torque 1.85 +/- 0.15kgf-cm Step 3 4 Screw (quantity) M2.0 × 3mm, flat-headed, nylon-coated (6) M2.0 × 5mm, flat-headed, nylon-coated (1) (E40) M2.0 × 6mm, flat-headed, nylon-coated (1) (E50) Color Black Silver Black Remove the heat sink assembly in the direction shown by arrow 5 . 80 Hardware Maintenance Manual Torque 1.85 +/- 0.15kgf-cm 1.85 +/- 0.15kgf-cm 1.85 +/- 0.15kgf-cm

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• “1030 Optical disk drive” on page 64
• “1040 Base cover assembly” on page 66
• “1050 Hard disk drive or solid-state hybrid drive” on page 68
• “1060 Wireless-LAN /Bluetooth card” on page 69
• “1080 Upper case” on page 71
• “1090 Audio board, audio board cable, power board, touch pad board cable, finger printer board,
LED board and ODD switch board” on page 73
• “1100 System board” on page 76
Removalstepsofthebatteryboard
Loosentwoscrews
1
andthenremovethebatteryboardinthedirectionshownbyarrow
2
(E50).
Step
Screw(quantity)
Color
Torque
1
M2.0 × 3mm, flat-headed, nylon-coated (2)
Black
1.85+/-0.15kgf-cm
Removalstepsofthethermalfanassembly
Loosen six screws
3
and one screw
4
.
Step
Screw(quantity)
Color
Torque
3
M2.0 × 3mm, flat-headed, nylon-coated (6)
Black
1.85+/-0.15kgf-cm
M2.0×5mm,flat-headed,nylon-coated(1)(E40)
Silver
1.85+/-0.15kgf-cm
4
M2.0×6mm,flat-headed,nylon-coated(1)(E50)
Black
1.85+/-0.15kgf-cm
Remove the heat sink assembly in the direction shown by arrow
5
.
80
Hardware Maintenance Manual