2-10 Removal and Replacement HP OmniBook 4100/4150
Note
For an OmniBook 4100 with a serial number between TW82000000 and TW83599999, if the date
code on the bottom of the keyboard is “828”, replace the keyboard. (Service note 4100-02.)
F1460 and F1462 keyboards are not compatible with 4150B models. F1649 keyboards are
compatible with all models. See the table on page 5-6 for part numbers.
Reassembly Notes
• To connect the larger keyboard flex cable, lay the keyboard flat on the top case slightly forward of
its normal position. To connect the smaller pointing stick flex cable, tip up the keyboard against
the display.
Caution
After connecting the keyboard and pointing stick flex cables, lean the keyboard forward and tuck
the excess length of the keyboard flex cable under the strip cover behind the keyboard. If a
stiffener tab is present on the larger cable, make sure its free end lays toward the front of the
case—so the tab is not under the strip cover.
Check the cable again after lowering the keyboard
into its final position.
Hint
On the bottom case, the holes for the keyboard screws are marked by “K”. The hole recesses
have flat bottoms for the 16-mm T-head screws (not tapered as for longer flathead screws).
