DIEBOLD AccuVote-OS 1.94, Руководство по оборудованию

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Maintenance and Repair
© Diebold Election Systems, Inc. 2002 AccuVote-OS Hardware Guide 28
4.2.16. Installing the ROM chips
Before attempting this procedure, ensure that all external cables have been disconnected and the
unit is powered off.
1) With the cover removed, position the chassis with the front panel facing you.
2) Orient ROM A chip with the notch on the chip facing toward the rear of the AccuVote-OS unit
(in the same orientation as the rest of the chips in the unit).
3) Line up the flat end of ROM A with the end of the ROM A socket facing you. Note that the
ROM chips should be installed in the same orientation and position as the neighboring RAM
chips.
It is usually easiest to set one row of pins in place and then set the chip down so the other row of
pins fit into place. Then gently but firmly push the ROM A chip into the socket.
Carefully verify that the pins on the chips are seated properly and are not bent under the chip or
splayed outside of the ROM socket.
4) Install ROM B in the SmartWatch chip using steps 2 and 3.
5) Replace the unit cover using the procedure previously described in Replacing the cover .
4.2.17. Removing the RAM chips
The RAM chips in the AccuVote-OS are used to provide run-time storage as firmware programs
are being processed. The AccuVote-OS is loaded with two of these chips:
•
RAM, installed in the slot marked RAM
•
EXP RAM, installed in the slot marked EXP RAM
Before attempting the following procedure, ensure that all external cables have been
disconnected and the unit is powered off.
1) Remove the cover using the procedure previously described in Removing the cover . Position
the chassis with its front panel facing you.
2) Use an integrated circuit chip pulling tool to gently pry up both ends of the RAM and EXP RAM
chips.
3) Once the chips are loosened from the CPU board, lift the chips up and out of the unit.
4.2.18. Installing the RAM chips
Before attempting this procedure, ensure that all external cables have been disconnected and the
unit has been powered off.
1) Remove the cover using the procedure previously described in Removing the cover . Position
the chassis with its front panel facing you.
2) Orient the RAM chip with the notch on the chip facing toward the rear of the AccuVote-OS unit
(in the same orientation as the rest of the chips in the unit).
3) Line up the flat end of the RAM chip with the end of the RAM socket facing you. Note that the
RAM chips should be installed in the same orientation and position as the neighboring ROM
chips.
It is usually easiest to set one row of pins in place and then set the chip down so the other row of
pins fit into place. Then gently but firmly push the RAM chip into the socket.
Carefully verify that the pins on the chips are seated properly and are not bent under the chip or
splayed outside of the RAM socket.