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    How to Reset the CPU Card on of the D8112 CPU Card

    Issue

    Installing a used CPU with unknown programming.

    Solution

    CPU can have the RAM cleared.

    Procedure:

    * This should be done with the CPU off the panel.

    With the CPU removed off the panel, remove the shroud; find CR2 and U8 on the circuit board.

    Place a 3 sec short across the banded end of CR2 and the center pin of U8.

    This will erase ALL Ram memory.

    Part numbers D8105, D8107, D8112, D8112A, D8112E, D8112E1, D8112G, D8112G1, D8112G2

    Version history
    Revision #:
    2 of 2
    Last update:
    ‎05-22-2018 03:56 PM
    Updated by:
     
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