Emax

The issue isn't the circuit- schematics are available.
The issue is that:
1) The upgrade disks are not available.
2) The upgrade requires registered PALs.

So- for number #1 it may be possible to write  / copy an eeprom to update
your memory.
Someone on the group says they did it, but I could not replicate their
effort.

2) You cannot read registered PALs.
So if you don't have the original binary (we don't), then you can't make
duplicates of them.

Currently there is only 1 way to break a registered PAL- reverse engineer it
using an high power (electron?) microscope to see each switch gate and map
it out.
The cost to have someone do that is very prohibitive, and may even be
illegal in some countries.

There is a team / person I have contacted that is working on a piece of
equipment to read / determine registered PAL programming, but he is sometime
away from a usable prototype for Registered PALs. The equipment is likely to
cost about $300 when it becomes available..

That is as much as getting a working Emax2 with memory off ebay....

Regards,
Ted






On Wed, Nov 24, 2010 at 4:14 AM, Niklas N <niklas627@yahoo.se> wrote:

>
>
>
> Have a few questions about memory for Emax 2
>
> - Does anyone know where I can get memory to Emax 2?
> - Is there anyone who has tried to "build" memories or have a schematic
> sketch of the memory? The circuit is quite big, so it should not be
> difficult to build if you have knowledge of how to build a circuits.
> Maybe someone can post a picture of how the circuit looks like and what
> components are on it? Maybe can I make a sketch from some pictures.
> - Is upgrade disks to memory to obtain or can someone post this on
> formumet so you can download it in the EMX format?
>
> cheers
> niklas
> www.myspace.com/non73audio <http://www.myspace.com/non73audio>
>
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>
>  
>


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