Lenovo K4450 Laptop Hardware Maintenance Manual - Lenovo K4450 and K4450A - Page 67

Power board, 1130 Media card reader slot board, Removethescrew, andthenremovethepowerboard.

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Remove the fingerprint board with the fingerprint board cable. 3 1120 Power board For access, remove these FRUs in order: • "1010 Battery pack" on page 48 • "1020 Bottom slot cover" on page 48 • "1040 Hard disk drive assembly" on page 51 • "1080 Keyboard" on page 55 • "1090 Keyboard bezel" on page 57 Removal steps of the power board Remove the screw 1 , and then remove the power board. 21 Step 1 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (1) 1130 Media card reader slot board For access, remove these FRUs in order: • "1010 Battery pack" on page 48 • "1020 Bottom slot cover" on page 48 • "1040 Hard disk drive assembly" on page 51 • "1080 Keyboard" on page 55 • "1090 Keyboard bezel" on page 57 • "1140 System board assembly" on page 63 Color Black Torque 0.181 Nm (1.85 kgf-cm) Chapter 8. Removing or replacing a FRU 61

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Removethefingerprintboardwiththefingerprintboardcable.
3
1120 Power board
Foraccess,removetheseFRUsinorder:
• “1010 Battery pack” on page 48
•“1020Bottomslotcover”onpage48
•“1040Harddiskdriveassembly”onpage51
• “1080 Keyboard” on page 55
• “1090 Keyboard bezel” on page 57
Removal steps of the power board
Removethescrew
1
,andthenremovethepowerboard.
2
1
Step
Screw (quantity)
Color
Torque
1
M2×3mm,flat-head,nylon-coated(1)
Black
0.181Nm
(1.85kgf-cm)
1130 Media card reader slot board
Foraccess,removetheseFRUsinorder:
• “1010 Battery pack” on page 48
•“1020Bottomslotcover”onpage48
•“1040Harddiskdriveassembly”onpage51
• “1080 Keyboard” on page 55
• “1090 Keyboard bezel” on page 57
•“1140Systemboardassembly”onpage63
Chapter 8
.
Removing or replacing a FRU
61