From: Martijn van Buul (pino_at_dohd.org)
Date: 2004-10-20 11:56:51
Jps Antonio wrote:
> Hello please try to help me , maybe putting this on the mailing....
> Well i picked up a commodore 8032.
I'm by no means an expert on the 8032 - I don't even have one myself :-/
I've Cc'ed this reply to the cbm-hackers mailinglist - maybe some of those
wise folk can help you more than I can.
> well after putting it on .. something of very confused appeared on the
> sceen.. something like unreadable caracter.
This probably means that the video logic doesn't get initialised correctly.
> I can hear the buzzer make a beep.
That, OTOH, would indicate that at least *SOME* of the logic board is still
working, and that the processor seems to be doing *something* - that beep
is actively generated, IIRC.
> After this i've tried to remove the three eprom to have it cleaned ... but
> after this nothing. Maybe i can have putted reversed them in back , atfer
> all checked and reinserted in the right way i have tried to give power...
> well same ... unreadable.
I know that the PETs without the 80-column CRTC (like the 2000, 3000 and "slim"
4000 series) can show weird results if one of the 2 5V-regulators is busted.
Another possible explanation would be that (part of) your RAM is busted.
That said, I have no clue, never ever having laid my hands on a 8032. Have
you checked whether there are components that get unusually hot?
> I've tried to give it a RUN command but after this the computer it's dead.
> Well now i've a friend that has eprom programmer.
> I will try first to rebunr the eprom and the try.
I don't think the ROMs are at fault. I'd check the RAM and the power supply
first.
> So now...
>
> Last thing what those eprom are supposed to do?
> Basic or what?
They contain the operating system of the computer - including but not limited
to the BASIC - it also contains the kernal, which is responsible for low-level
things like reading the keyboard, operating the IEE488 bus, etc. etc.
> Can the per work without those eprom?
Definately not.
> Thank you for tring to help me!
I'm sorry I don't have much more advice to offer :-/
--
Martijn van Buul - Pienjo@c64.org - http://www.stack.nl/~martijnb/
Geek code: G-- - Visit OuterSpace: mud.stack.nl 3333
The most exciting phrase to hear in science, the one that heralds new
discoveries, is not 'Eureka!' (I found it!) but 'That's funny ...' Isaac Asimov
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