Re: Catbox, Catbox Sigs

Thanks for providing the sig, I was about to run calcsignature to get it.

Anyways, Rom test came back as 0000, and since I know the rom is good that
can't be right :(

How well do the flukes do the bus test? Since I've not ran into a situation
where the bus test has failed before.

Ram test are showing faults but that may be due to some other problem.

Haven't had a chance to fully get into this guy yet, but wanted to let you
guys know what little progress I've made :)

Kevin

On Tue, Feb 2, 2010 at 2:24 PM, John Robertson <pinball@telus.net> wrote:

> 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> 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"
>>
>>
>>
>
>
> --
> 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 19:07:56 2010