1140 Bluetooth Daughter Card; 1150 Media Card Reader Slot Board Assembly - Lenovo ThinkPad Edge E420s Hardware Maintenance Manual

1140 Bluetooth daughter card

For access, remove these FRUs in order:
• "1020 Hard disk drive or solid state drive assembly" on page 60
• "1030 Keyboard" on page 61
• "1040 Top case assembly" on page 63
• "1090 Battery pack" on page 68
Removal steps of bluetooth daughter card
Step Screw (quantity)
1
M2 × 4 mm, wafer-head, nylon-coated (1)
When installing: Make sure that the connector on the bottom side of the card is attached firmly to the
system board.

1150 Media Card Reader slot board assembly

For access, remove these FRUs in order:
• "1020 Hard disk drive or solid state drive assembly" on page 60
• "1030 Keyboard" on page 61
• "1040 Top case assembly" on page 63
• "1090 Battery pack" on page 68
• "1100 Optical drive or travel cover" on page 69
Removal steps of Media Card Reader slot board assembly
When installing: Make sure that the Media Card Reader slot board assembly is attached firmly to the
system board.
Color Torque
Black 0.181 Nm
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
75