Re: VIC-42

From: Gerrit Heitsch <>
Date: Tue, 22 Jun 2021 07:58:36 +0200
Message-ID: <>
On 6/22/21 3:06 AM, Mike Naberezny wrote:
> On 6/20/21 8:43 AM, Six Of DLoC wrote:
>> Anyone have an Alphacom 42 they want to pop open and see if one of 
>> these is on the board?
> I have an Alphacom VP42 printer and to my surprise, it does indeed 
> contain a "VIC-42" chip:
> My first thought upon seeing this was that it could be a MOS 6500/1 like 
> in the Commodore 1520 plotter.  I did some quick continuity checks and 
> that seems probable.  Vcc, Vss, and the crystal match the pins on the 
> 6500/1 datasheet.

If it's in fact a 6500/1 then the firmware should be dumpable using the 
same method as was used for the Amiga keyboard controller and the 1520 

Received on 2021-06-22 09:00:05

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