Robotron 2084

Williams RAM question

Pinout voltage checks for RAM are...

        pin 16 - ground
        Pin 1 - -5v
        pin 8 - +12 v
        pin 9 - + 5v

        It important to check these right on the pins of one of the RAMS.  If
-5 is missing for too long, the chips will die.  Not only can it be a
power supplt problem, it can be a connector problem on the CPU board.
The connector itself or the solder joints on the pins of the connector
(underside of the CPU board)

Mike
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Mike Ranger, P. Eng                   Mike_Ran...@Dofasco.ca
Senior Engineer
Primary Automation Systems
Dofasco Inc.
Hamilton, Ont can

The opinions expressed are Mine, not my company's.
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Adios Senna