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).

2-10 Removal and Replacement

HP OmniBook 4100/4150