Re: Schematics

From: William Levak (wlevak_at_cyberspace.org)
Date: 2000-12-31 07:42:50

On Sat, 30 Dec 100 g.baltissen@hccnet.nl wrote:

> Going thru the sheets some questions for you raised:
> - Who owns a MMF 9000 ie. the 8032 with the extra 6809 and extra memory? 
> I've got two problems here: 
>   1) the IC's on the memory sheet only have boardcodes. For example, U1..5 
> are probably 74LS257's but somebody must confirm this. Other IC's I don't 
> recognize at all. 
>   2) I have 5 connectors on a sheet: P2..P6. I cannot find out their 
> function (memory expansion ???). I neither cannot find P1 (if it exists at 
> all).
> Please also tell me which connector of each board is connected to which 
> connector of the other board.

I have a SP9000 (same as MMF 9000).  There are two versions of this
machine, one with 2 added boards, and one with one added board.  The parts
identification would depend on which version you have.  At any rate, the
schematics for both are on funet.

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