Maintenance
and
Repair
© Diebold Election Systems, Inc. 2002 AccuVote-OS Hardware Guide
19
1) Remove the unit cover using the procedure previously described in
Removing the cover
and
position it face down on the work surface, behind the AccuVote-OS base. Note that in this
orientation, the ballot reader is located at the bottom, right hand corner of the AccuVote-OS lid.
2) Note the orientation of the three-wire power cable connector. Remove the three-wire power
cable connector from the card reader by gripping the connector and pulling outwards.
3) Remove the ribbon cable from the reader by placing 2 fingers on the locking eject levers on
either side of the ribbon cable connector and pushing outward. This will release the ribbon cable
connector from the header.
Perform this activity with the connectors on both ends of the ballot reader ribbon cable.
4) Using a Phillips (+) screwdriver, remove the four screws from the corners of the reader
assembly. The screw in the top, right-hand corner of the assembly should be left in the ballot
reader, since easy removal and installation of the screw is prevented by the ballot reader motor.
5) Remove the reader assembly by lifting it up from the cover.
6) Set the reader aside on a piece of foam or other static discharge safety material, with the
connector facing up.
4.2.4. Installing the card reader assembly
Ensure that all external cables are disconnected from the unit and the unit is powered off before
installing the reader.
1) Lower the reader assembly into place with the cover oriented as previously described in
Removing the card reader assembly
. Use the position of the motor as a guide to orienting the
assembly. The reader motor should be oriented to the top right of the reader mounting area.
2) Ensure that the reader assembly housing is properly aligned with the slots in the cover, then
press the reader assembly firmly against the mounting surfaces.
3) Replace the screws in the corners of the reader assembly — the screw in the top, right hand
corner should already be present on the ballot reader. Gently tighten the screws —
do not over
tighten
.
4) Connect the ribbon cable to the reader. Press the connector on one end of the ribbon cable
into the header on the AccuVote-OS base and the connector on the other end of the ribbon cable
into the header on the reader. The locking eject levers on both sides of the headers should snap
into place once the connectors have been installed.
The polarization tabs on the sides of the connectors should fit into the polarization slots on the
sides of the headers. Select the ribbon cable connector for the AccuVote-OS reader header that
causes the ribbon cable to travel towards the center of the lid when connected, rather than
towards the outside of the lid.
5) Connect the three-wire power cable to the reader using the previously noted orientation.
6) Reinstall the AccuVote-OS cover using the procedure previously described in
Replacing the
cover
.
4.2.5. Removing the CPU board
Ensure that all external cables are disconnected from the unit and the unit is powered off before
removing the CPU board Also, ensure that no memory cards are installed into the CPU board.
1) Remove the unit cover using the procedure previously described in
Removing the cover
and
position it face down on the work surface, behind the AccuVote-OS base.
2) Remove the paper from the printer feeding mechanism by turning the printer thumb wheel
counterclockwise.
