Re: Catbox, Catbox Sigs

Haven't run the Fluke on it, but everything else. I'm assuming it's probably
an addressing problem.

Thanks,

Kevin

On Tue, Feb 2, 2010 at 11:52 AM, John Robertson <pinball@telus.net> wrote:

> Kevin Moore wrote:
>
> Thanks, I have all that. I was just wondering if they had done a sig
> analysis profile. Before I start hitting it with the logic probe :)
>
>
> Ah, no, not to my knowledge. I usually fire up the Fluke 9010 about this
> time with non-working CPU based equipment... If you have a second Cat Box
> you can use that to troubleshoot the sick one...
>
> I would start (after verifying proper voltages) with substituting the RAM,
> then the CPU and finally the Eprom. This is the order I find failures in
> most CPU based equipment.
>
> If there are PROMs, then they are about as suspicious as RAM, however no
> PROMs in the Cat Box. ROMs are almost as reliable as Eproms in my
> experience.
>
> John :-#)#
>
>
> On Tue, Feb 2, 2010 at 11:06 AM, John Robertson <pinball@telus.net> wrote:
>
>> Kevin Moore wrote:
>>
>>> Is there a Catbox Sig manual for the Catbox, or for that matter one using
>>> an HP5004a to do sigs on the catbox?
>>>
>>> I've got another cat box that the logic board isn't running.
>>>
>>> Thanks,
>>>
>>> Kevin
>>>
>>> Hi Kevin,
>>
>> I have a scan of the Atari CAT BOX book, includes schematic - its up on
>> Tech Tools List FTP site under CAT BOX...
>>
>> FTP site is: ftp://ftp.flippers.com/TTL/TestEquipment
>>
>> Mail List Archive site:
>> http://seven.pairlist.net/pipermail/techtoolslist/
>>
>> Hope that helps! ROM images, POD sheets, etc. also found there...
>>
>> John :-#)#
>>
>> --
>> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call
>> (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
>> www.flippers.com "Old pinballers never die, they just flip
>> out"
>>
>>
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>
>
>
> --
> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
> www.flippers.com
> "Old pinballers never die, they just flip out"
>
>

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Received on Tue Feb 2 12:58:51 2010