Wi-Fi Antennas - Lenovo 27IAH7 Hardware Maintenance Manual

For 27-inch models:
17. Install the new middle frame.
18. Reinstall the removed parts in reverse order of the removal steps mentioned above.
19. Reconnect all disconnected cables to the computer and reconnect the power cord to the electric outlet.

Wi-Fi antennas

Prerequisite
Before you start, read Chapter 1 "Important safety information" on page 1 and print the following
instructions.
Before you open the computer cover, turn off the computer and wait several minutes until the computer is
cool.
Replacement procedure
1. Remove the power cord. See "Power cord" on page 57.
2. Remove the computer upper cover. See "Computer upper cover" on page 57.
3. Remove the system stand. See "System stand (with or without wireless charging module)" on page 59.
4. Remove the computer back cover. See "Computer back cover" on page 59.
5. Remove the power switch board. See "Power switch board" on page 63.
6. Remove the side I/O board. See "Side I/O board" on page 64.
7. Remove the system board shielding fence. See "System board shielding fence" on page 65.
8. Remove the PSU and PSU socket bracket. See "PSU and PSU socket bracket" on page 66.
9. Remove the memory module. "Memory module" on page 68.
10. Remove the heat sink. "Heat sink" on page 69.
11. Remove the system fans. "System fans" on page 70.
12. Remove the M.2 solid-state drive. "M.2 solid-state drive" on page 71.
78
IdeaCentre AIO 5 Hardware Maintenance Manual