Keyboard Assembly, Removal/Replacement - Texas Instruments TravelMate 5000 Series Maintenance Manual

4.
5.
6.
7.
8.
9.
Note: When installing the keyboard cables, note the orientation of the two
cables: the wide cable has a half- twist which places the metalized connec-
tor pins upwards. The small cable has the blue side pointing toward the left.
The ZIFconnector release mechanism must be open before inserting the ca-
ble; then press the locking mechanism to the left until it is fully seated.
F5 Key
ESC Key
Figure 5-6 Keyboard Assembly, Removal/Replacement
Repeat this procedure until the top edge of the keyboard is free.
Tilt the top edge of the keyboard toward you to gain access to the two
keyboard cable connectors underneath the keyboard.
Note that the wide keyboard connector attaches to the Main Board using
a ZIF (zero insertion force ) type connector. To disconnect this cable,
gently pry the connector release mechanism to the right
approximately 1/8" which releases the ribbon cable.
Gently lift upwards on the narrow ribbon cable (point cable) and remove
the cable from the main board connector.
Remove the keyboard assembly from the notebook.
When installing the replacement keyboard, essentially reverse the above
procedures. Insert the two cables into the connectors on the main
board; then tilt the keyboard and allow the three protruding metal
tabs along the front edge of the keyboard to enter the recessed areas.
Then gently press the top edge of the keyboard down beginning at the
left side and working across to the right side.
F10 Key
DEL Key
Step 1:
Insert smalll straight-slot Screwdriver into the slots
directly behind the indicated keys along the top
edge of the keyboard starting with the ESC Key slot.
Gently pry the keyboard upwards at each release point
until the keyboard is free.
Step 2:
Tilt the base of the keyboard upwards to
access the two keyboard cables underneath;
Disconnect the two cables from the
Keyscan Board.
Field Service 5-11