Maintenance
and
Repair
© Diebold Election Systems, Inc. 2002 AccuVote-OS Hardware Guide
20
3) The following cables are connected to the top of the CPU board, in left-to-right order:
•
static discharge strap
•
four-wire power supply cable
•
three-wire deflector connector cable
•
main serial port cable
•
modem serial port cable
•
two-wire modem power cable
•
ballot reader serial cable
•
static discharge strap
Note that it is not necessary to remove the ribbon cables connecting the LCD and the printer
assembly to the CPU board.
4) Grip the four-wire power supply connector next to the printer assembly and remove from the
CPU board.
5) Grip the three-wire deflector connector cable connector to the right hand side of the four-wire
power supply cable and remove from the CPU board.
6) Place two fingers on both lock eject levers on either side of the main serial port connector and
push outwards in order to release the connector from the header located on the CPU board. The
main serial port connector is located to the right hand side of the three-wire deflector connector
cable.
7) Place two fingers on both lock eject levers on either side of the modem serial port connector
and push outwards in order to release the connector from the header located on the CPU board.
The modem serial port connector is located to the right hand side of the main serial port header.
The modem serial cable need only be removed if a modem is installed in the AccuVote-OS.
8) Grip the two-wire modem power connector located between the modem serial cable and the
ballot reader connector and remove from the CPU board. The two-wire modem power cable
need be removed only if a modem is installed in the AccuVote-OS.
9) Place two fingers on both lock eject levers on either side of the ballot reader serial cable
connector and push outwards in order to release the connector from the header on the CPU
board. The ballot reader serial connector is located in the right hand corner of the CPU board.
10) There are two static ground connectors located on the CPU board. One is located between
the printer assembly and the four-wire power supply connector and the other is located on the
right hand side of the CPU board. Grip each static ground connector and pull outwards in order
to remove it from the CPU board.
11) Remove the AccuVote-OS and button pads by pushing out on the button pads from the inside
of the chassis, using a small, flat blade (—) screwdriver.
12) Using a ¼” nut driver, remove each of the six nuts connecting the CPU to the chassis. Do not
remove the nuts connecting either the memory card cover or the printer/LCD bracket to the CPU
board. After the nuts have been removed, remove the lock washers and the nylon washers
remaining on the screws by either pulling them upwards or by carefully rotating these washers
counterclockwise on the screws. Use a fine flat blade (—) screwdriver for assistance in removing
the less easily accessible washers.
13) Gently lift the CPU board from the rear, sliding it upwards and back. This will prevent
damage to the front panel pushbutton posts. Pay particular attention to the front, right hand
portion of the CPU board, as it may be blocked by the right hand memory card security plate post.
Содержание AccuVote-OS 1.94
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