Re: Catbox, Catbox Sigs

Kevin Moore wrote:
> Haven't run the Fluke on it, but everything else. I'm assuming it's
> probably an addressing problem.
>
> Thanks,
>
> Kevin
>
Considering the simplicity of the CatBox running the 9010A with the 6502
pod should show the problem up in seconds.

The CatBox Eprom Fluke signature should be "B2DB" for the Checksum
version of the software - all versions (except my prototype Cat Box) as
far as I know are Checksum versions.

John :-#)#
>
> On Tue, Feb 2, 2010 at 11:52 AM, John Robertson <pinball@telus.net
> <mailto: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 <mailto: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 <http://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 <http://www.flippers.com>
> "Old pinballers never die, they just flip out"
>
>
>

-- 
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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