Re: (Fwd) Re: 8032 crt vs. 3032 crt

From: William Levak <wlevak_at_SDF.ORG>
Date: Mon, 24 Jun 2013 00:43:57 +0000 (UTC)
Message-ID: <Pine.NEB.4.64.1306240040210.11593@sdf.lonestar.org>
It would appear from what you said, that it is the ROM itself that is the 
problem.  You do not say exactly which version of the board and which 
version of ROM it is.  Addressing is slightly different on some versions.
Also access time of the ROM may be different.


On Sun, 23 Jun 2013, Ruud@Baltissen.org wrote:

> Hallo Giovi,
>
>
> To be honest, I have no idea. So I forward your question to the
> famous CBM-hackers again.
>
>
> ------- Forwarded message follows -------
> From:	"Giovi" <stravaccato68@yahoo.it>
> To:	<Ruud@Baltissen.org>
> Subject:	Re: (Fwd) Re: 8032 crt vs. 3032 crt
> Date sent:	Sat, 22 Jun 2013 14:54:58 -0300
>
>
> Hi Ruud,
>
> I have a new question for you!
>
> With some good and expert friends at
> http://www.vintage-computer.com I took
> the decision to fix the original 3032 board.
>
> After fixing some minor problems we arrived at a dead point.
>
> The computer works (boot and answer to keyboard command) only with
> the edit
> ROM for business keyboard. It doesn't work (it hangs with a black
> screen
> while booting) with the edit ROM for graphic keyboard.
>
> We tried with basic 2 and basic 4, of course with correct set of
> Rom/Eprom.
> Same result: ok with business keyboard rom, no way with graphic
> keyboard
> rom.
>
> We checked it with a petester.bin ROM and all seems ok at least
> with this
> simple diagnostic.
>
> It *seems* that some instructions in the edit ROM (at $E000) for
> the graphic
> keyboard make it to hang.
>
> Have you some experience/ideas about this?
>
> I also don't understand if is there any difference (jumpers,
> components...)
> between graphic keyboard assy and business keyboard assy...
>
> cheers,
> Giovi
>
>
> ------- End of forwarded message -------
>
>
> --
>
> Kind regards / Met vriendelijke groet, Ruud Baltissen
> www.Baltissen.org
>
>
>
>
>
>
>
>       Message was sent through the cbm-hackers mailing list
>

wlevak@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org

       Message was sent through the cbm-hackers mailing list
Received on 2013-06-24 01:00:03

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