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Disassembly/Assembly
PC3x Keyboard Assembly
PC3x Keyboard Assembly
Removing the PC3x Keyboard Assembly
The following procedure assumes that the PC3x is open and that you have followed the
instructions to remove the top enclosure.
1. The keyboard is secured to the bottom enclosure using twelve screws. Refer to Figure 3-15
for the position of the screws. Arrows identify the locations of the twelve screws.
2. Tilt the PC3x up and remove the six keyboard rear screws, then lay the PC3x flat on your
work surface.
3. Move the PC3x forward so that the front hangs over the edge of your work surface to
access the remaining screws, and remove the six keyboard front screws.
4. Slide the PC3x back onto your work surface.
5. Slide the left side of the unit forward off of your work surface so that you can access the
four screws and washers securing the Wheels Assembly to the bottom enclosure. Remove
the four screws and washers.
Figure 3-15 PC3x keyboard bottom
6. Slide the PC3x back onto your work surface.
7. At this point the keyboard is loose in the bottom enclosure, but it has cables connected to
the Wheels Assembly and the Connector Board.
8. Lift the Wheels Assembly and disconnect the Aftertouch flex cables. These cables have
nylon reinforced tape securing them to the bottom enclosure. Peel back the tape from one
side to free the cables.
9. Place the Wheels Assembly in its position on the bottom enclosure.
10. Disconnect the flat ribbon cables from locations J306 and J307 on the Connector Board.
These cables are also secured to the bottom enclosure with nylon reinforced tape. Peel
back the tape from one side to free the cables.
Keyboard
Access panel
Keyboard rear screws
Keyboard front screws
Wheels Assembly screws
Rear panel
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