22. If you need to remove the second ambient light sensor cables, disconnect the cable from the ZIF
connectors on the second ambient light sensor (1) and hub board (2), and then peel the cables o the
inside of the display back cover to remove them (3).
The second ambient light sensor cable is available in the Cable Kit as spare part number M08526-001.
Display back covers are available as the following spare part numbers:
M08541-001: Models with WWAN, 250 nits, Touch-on Panel (TOP)
M08542-001: Models with WWAN, 400 nits
M08543-001: Models without WWAN, 250 nits, Touch-on Panel (TOP)
M08544-001: Models without WWAN, privacy
Reverse this procedure to reassemble and replace the display assembly.
Keyboard with top cover
The top cover with keyboard remains after removing all other spare parts from the computer. In this section,
the rst table provides the main spare part number for the top cover/keyboards. The second table provides
the country codes.
Table
6-13 Keyboard with top cover descriptions and part numbers
Description Spare part number
Keyboard with top cover, backlit M21674-xx1
Keyboard with top cover, not backlit M21676-xx1
Keyboard with top cover, backlit, for use in privacy models M21675-xx1
74 Chapter 6 Removal and replacement procedures for authorized service provider parts