How to Reset the D8112 CPU card (D8105) E, E1, G. G1, G2 and A

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Overview: Ram Dump Procedure for the D8112 CPU board. The D8112 is made up od a D8107 Mother Board and a D8105 CPU Card. The CPU Card is hot swappable.

Issue

Installing a used CPU with unknown programming.

Solution

It is possible to clear memory of the CPU Card.

Procudure :

*NOTE: 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 D8112, D8112A, D8112E, D8112E1, D8112G, D8112G1, D8112G2, D8105E, D8105E1, D8105G, D8105G1, D8105G2, D8105A