5-12 Chapter 5: Service
4. Using your fingers, disconnect the Keylock Ribbon Cable.
5. Unplug the Mouse Pad Cable.
6. Remove 3 screws from the Main Control Board and 2 screws from
the MSR Board.
7. Lift the 2 boards from their locator pins and lay them aside with the
cable still connected between the 2 boards.
8. Press down on the 2 Locking Pins and slide the Backing Plate
forward off the Retainer Tabs.
19607
Locking Pins
Retainer Tabs
9. When clear of the Retainer Tabs, lift the Backing Plate off to access
the Membrane Sheet.
10. Replace the Membrane Sheet.
11. Place the Backing Plate over the Retaining Tabs, slide the plate to
the back until the Locking Pins snap into the holes in the plate.
12. Place the Main Control and MSR Boards on their locator pins.
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