Re: Clock Card?

[mjmahon@aol.com (Michael J. Mahon)]

Bill Garber wrote:

<snip>

>Of course it may also take a pair of the 1/2 AA and
>be 7.2v with a circuit for cutting it back. Could that be possible?

No, it's almost certainly intended to be an alkaline AA cell.

This means that there must be a "power supply" oscillator on
the card and a couple of diodes and capacitors to build a
voltage doubler for the "standby power".

BTW, it's unlikely that the firmware from another card will
operate the clock properly, since the actual circuits are
almost certainly different, resulting in different firmware
requirements.

Unless someone has a copy of the original software, docs,
or, perhaps more important, a ProDOS driver for the card
and some setting software, it will be necessary to reverse-
engineer it to discover how to control it.

-michael

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