1130 Bluetooth Daughter Card (Bdc-3.0); 1140 Bluetooth-Wireless Radio Switch Fpc - Lenovo ThinkPad T420si Hardware Maintenance Manual

Step Screw (quantity)
1
M2 × 3 mm, shoulder-socket head, nylon-coated (1)

1130 Bluetooth daughter card (BDC-3.0)

• "1010 Battery pack" on page 68
• "1030 Solid state drive (SSD) or hard disk drive (HDD)" on page 70
• "1080 Keyboard" on page 80
• "1100 Palm rest with fingerprint reader, smart card reader, and speaker" on page 84
Removal steps of BDC-3.0
Step Screw (quantity)
1
M2 × 4 mm, flat-head, nylon-coated (1)
When installing:
Make sure that the connector is attached firmly.

1140 Bluetooth-wireless radio switch FPC

For access, remove these FRUs in order:
• "1010 Battery pack" on page 68
• "1020 Serial Ultrabay Slim device or travel bezel" on page 69
• "1030 Solid state drive (SSD) or hard disk drive (HDD)" on page 70
• "1040 DIMM" on page 72
• "1050 PCI Express Mini Card for wireless LAN" on page 74
Color Torque
0.181 Nm
Silver
(1.85 kgfcm)
Color Torque
Black 0.181 Nm
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
91