Re: UD3 ROM on a 3032

From: Gerrit Heitsch <>
Date: Sun, 30 Oct 2016 18:50:45 +0100
Message-ID: <>
On 10/30/2016 06:20 PM, Francesco Messineo wrote:
> Hi all,
> I started working on my 3032 (2001-32), it will be a long project,
> since it's mostly a pile of dirt and rust (I've found it in this state
> 15 years ago, in a side of the street).
> I've seen the UD3 ROM socket populated, here's a picture:
> I'll be reading the EPROM in the next days, does someone have an idea
> about what might that be anyway?

When dumping the EPROM, please dump it twice, once normal and once with 
a 1N4148 between Vcc of the EPROM and Vcc. Then compare the 2 dumps. If 
they are the same, you can consider it a successful dump. If not, the 
dump taken with the 1N4148 might be correct.


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Received on 2016-10-30 18:01:14

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