Remove The Wlan & Bluetooth Combo Module - Lenovo N22–20 Hardware Maintenance Manual

Figure 8. Remove the cable
Step 2. Remove the two screws and then remove the I/O board.
Figure 9. Remove the USB board
Refer to Table 12 "Part numbers for FRUs (CRUs)" on page 43 to look up the Lenovo part numbers of
replacement USB board.
Remove the WLAN & Bluetooth combo module
Make sure the following FRUs (CRUs) have been removed and the battery connector has been detached.
"Remove the upper case (with keyboard)" on page 25
Step 1. Disconnect the white and black cables from the WLAN & Bluetooth combo module
a
b
1 .
.
Chapter 4 Removing a FRU or CRU
29