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Possibly a hardware guru can tell what the undocumented B1-03 (E13) is capable of...?

https://dl.dropboxusercontent.com/u/37819653/ARBITRATOR.png

E13 (or E11 on 100-A) is labeled '256 x 8 arbitration ROM' and soldered directly to the motherboard.

The schematics from 100-A is a bit clearer on this:

https://dl.dropboxusercontent.com/u/37819653/PC100_A__E11_Arbitrator_-_256_x_8.png
(note the difference on pin 5 when compared to 100-B ).

Unfortunately, it is a small chip in a confined space.

Will we get away without it?


blush OMG...i am talking to myself

Last edited by Bavarese; 06/04/14 07:17 PM.