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6.3.0 MAINTENANCE
6.3.1 Keyboard Assembly
Removal and Replacement
1.
Power down.
2.
3.
4.
5.
Remove top cover (three screws under
leading edge).
Disconnect cables.
Remove four 1110unting screws; then
remove the keyboard.
To replace, reverse the above procedure.
Note:
When replacing the keyboard, retain
the CODE key button (if installed) for use
on the new keyboard. See Section 6.3.5.
Disassembly
CAUTION
The keyboard assembly must be kept clean.
1.
Remove the keyboard assembly and
2.
3.
4.
5.
place it upside down in a clean work area.
Loosen, but do not remove, the six screws
holding the baseplate and the PC board to
the all keys assembly.
Note:
Do not disassemble the keyboard
assembly yet. If a key is pressed, the fly-
plate jumps out of the key module. If
this happens, refer to the flyplate replace-
ment procedure (6.3.4).
Place the keyboard assembly right side up
and slide one corner off the edge of the
work surface to expose one holding screw.
Remove the remaining holding screws in
this same manner.
Lift the all keys unit and lay it right
side up on a smooth clean surface.
To reassemble, reverse the above procedure.
6.3.2 Key Module
Removal
1.
2.
3.
4.
Disassemble the keyboard (6.3.1).
Use the key button pulling tool (PIN
627953) to lift the key buttons from
the key modules to be removed.
Lift one edge of the all keys unit about
112 inch and push the key modules being
removed down until they snap free.
CAUTION
Be sure no keys are pressed.
Lift the all keys unit, leaving the loosened
modules.
Replacement
1.
2.
Set the key module upright and place the
all keys unit in position over it. Align the
slot in the module with the orientation
lug on the mounting hole.
For the FIELD BKSP, ENTER, and
0
(zero) key, guide the stabilizer into the
slot in the pivots.
3.
Press down on the ends of the all keys
unit to snap the module into place.
6.3.3 Space Bar
Removal
1.
2.
Hold the ends of the space bar and pull
up to slide the bar off the key stems.
If pivots need to be removed, insert a
screwdriver tip in the slot in the side of
the frame and twist the screwdriver until
the pivot is removed.
Frame
Space Bar
Stablizer
Replacement
1.
2.
3.
4.
Press the pivots into place in the frame.
Position the space bar over the key stems.
Guide the stabilizer into the slots in the
pivots.
Press the space bar down onto the key
stems.
Keyboard
6-7
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