Re: Strange CBM710 with 3.5" drive

From: Steve Gray <sjgray_at_rogers.com>
Date: Thu, 13 Jun 2013 10:29:59 -0700 (PDT)
Message-ID: <1371144599.26687.YahooMailNeo@web161301.mail.bf1.yahoo.com>
Wow, pictures please !!!!!!
 
Steve


>________________________________
> From: Michał Pleban <lists@michau.name>
>To: "cbm-hackers@musoftware.de" <cbm-hackers@musoftware.de> 
>Sent: Thursday, June 13, 2013 12:23:45 PM
>Subject: Strange CBM710 with 3.5" drive
>  
>
>Hello!
>
>Today I picked up a strange CBM710 machine from eBay. Unfortunately it
>does not power on, but here's what I found:
>
>* There is a DIN5 socket at the back. It is wired to the User Port by
>two wires. It's not an IEC port (different pinout, too little wires).
>
>* There is an unknown adapter on the expansion port. It is wired to the
>video connector so I assume it's some kind of graphic adapter. There is
>an array of TTL glue logic there and one 40pin chip which has a big
>radiator glued on - I cannot unglue it so I don't know what chip this
>is. On the board are markings "GDP 64K" and "Elektronikladen 4930
>Detmeld 18". There are many manually resoldered wires on the board, one
>chip is even piggybacked on another.
>
>And, the most strange of all...
>
>* There is another board on the second expansion port, with an EPROM and
>SAB2793B chip, and attached to it is... a 3.5" floppy drive!!! It is
>mounted at the front, through a hole cut crudely through the front panel.
>
>As I said, it does not power up so I cannot test anything, so I'd
>appreciate any input on what these might be?
>
>Regards,
>Michau.
>
>
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Received on 2013-06-13 18:01:28

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