John Robertson wrote:
> Anyone have one of these? I am in need of either schematics or some
> voltage measurements from the regulator PCB. Just 'won' this off eBay
> and it really doesn't work (not surprising given the description).
>
> The device looked useful - my assumption was it would generate a
> CheckSum of an Eprom inserted into the socket - it has four
> seven-segment displays after all! It uses a Z80 that appears to be
> wired up as a NOP, but it uses several voltages - perhaps -5 and +12
> for the 2708s etc. I only have one socket - 2764-27128, if anyone has
> any of the sockets I'd be interested in pictures to try to figure out
> the pinout assuming no schematics or manual turns up that is!
>
> Thanks!
>
> John :-#)#
>
OK, the regulator board turns off the -12 and +12 unless the TEST button
is pressed. I assume that is to protect the Eprom...
Still digging...
John :-#)#
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Received on Wed Jan 5 20:42:06 2011
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