Re: 9010 Z-80 Pod Help needed

Oh, crap. 8085 pod manual ALSO calls for a 585141 ribbon cable. This
appears to be the flat cable. The pod manuals don't give an alternate
number for the twisted pair style cable.

On Sun, Mar 10, 2013 at 4:11 PM, Rodger Boots <rlboots2@gmail.com> wrote:

> UUT ribbon cable is 585141 according to pod manual.
>
>
> On Sun, Mar 10, 2013 at 4:05 PM, Justin Johnson <rugd2go@comcast.net>wrote:
>
>> I swapped the Z80 and the 6532. Here is the interesting part: When I
>> swapped the Z80 no change but when I swapped the 6532 pin 28 of U4 was now
>> high. I thought that was a good sign so I decided to run the self test
>> again and it failed. I then checked Pin 28 of U4 again and it was low
>> again. What I suspect is that when I purchased the new cables for the POD
>> the guy shipped me a 8085 40 pin cable rather than the z-80 and pin 20 of
>> the cable grounded. When I ohm out the 40 pin cable pin 20 is connected to
>> the ground lug that goes to the screw on the metal standoff. The number on
>> the 40 pin cable is 685495. Can someone verify the cable number is correct?
>>
>> Thanks
>>
>> Justin
>>
>>
>>
>>
>> On Mar 9, 2013, at 10:50 PM, Rodger Boots wrote:
>>
>> Probably a better chance of the Z80 being bad (or pin 20 not connected).
>>>
>>> On Sun, Mar 10, 2013 at 12:44 AM, Justin Johnson <rugd2go@comcast.net
>>> >wrote:
>>>
>>> I have a 6502 pod so I will try swapping the 6532 IC tomorrow and see
>>>> what
>>>> happens. If nothing else I can eliminate something.
>>>>
>>>> Thanks
>>>>
>>>> Justin
>>>>
>>>>
>>>>
>>>>
>>>> On Mar 9, 2013, at 10:33 PM, Rodger Boots wrote:
>>>>
>>>> Rereading the original complaint it appears bit 3 (not bit 5) was
>>>> failing.
>>>>
>>>>> Bit 3 is IORQ (pin 20).
>>>>>
>>>>>
>>>>> On Sat, Mar 9, 2013 at 11:12 PM, David Shoemaker <davids@oz.net>
>>>>> wrote:
>>>>>
>>>>> Sounds like replacing the 6532 is in order (it's an IO chip). Those
>>>>> are
>>>>>
>>>>>> used in all the pods I think so you could try a swap and see if that
>>>>>> fixes
>>>>>> the problem.
>>>>>>
>>>>>> -----Original Message-----
>>>>>> From: techtoolslist-bounces@**flippe**rs.com <http://flippers.com><
>>>>>> techtoolslist-bounces@**flippers.com<techtoolslist-bounces@flippers.com>
>>>>>> >
>>>>>> [mailto:techtoolslist-bounces@****flippers.com<techtoolslist-**
>>>>>> bounces@flippers.com <techtoolslist-bounces@flippers.com>>]
>>>>>> On Behalf Of Justin Johnson
>>>>>> Sent: Saturday, March 09, 2013 7:09 PM
>>>>>> To: Techtoolslist@flippers.com
>>>>>> Subject: [Techtoolslist] 9010 Z-80 Pod Help needed
>>>>>>
>>>>>> Hi Guys,
>>>>>>
>>>>>> I'm hoping I can find some help fixing my Z-80 Pod. Here is the scoop
>>>>>> and
>>>>>> I
>>>>>> will try to make this short. I purchased a Z-80 pod with the cables
>>>>>> cut
>>>>>> off. Found a new set of cables and tried a self test. The self test
>>>>>> gave
>>>>>> me the failure code 00. I then used a 40 pin socket and removed pin
>>>>>> 29
>>>>>> as
>>>>>> suggested in the manual and placed the socket on the pod pins and
>>>>>> reinserted
>>>>>> the 40 pin connector into the pod for a bus test. I then got a CTL
>>>>>> ERR
>>>>>> 00000000 00001000- LooP. As I understand it that shows an issue with
>>>>>> driving bit 5. Am I correct that this is address and data line 5? I
>>>>>> used
>>>>>> my
>>>>>> logic probe and probed the data lines of U4 or R6532AP. I found that
>>>>>> pin
>>>>>> 28
>>>>>> of
>>>>>> U4 which is the R6532AP has Data line 5 low while the other data
>>>>>> lines
>>>>>> are
>>>>>> high. Where do I go from here? Any help or suggestions would be
>>>>>> appreciated.
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> Justin
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>>>>>> FTP site is: ftp://ttl.arcadetech.org/TTL/****Test_Equipment<ftp://ttl.arcadetech.org/TTL/**Test_Equipment>
>>>>>> <ftp://ttl.**arcadetech.org/TTL/Test_**Equipment<ftp://ttl.arcadetech.org/TTL/Test_Equipment>
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>>>>>>
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>>>>>> <ftp://ttl.**arcadetech.org/TTL/Test_**Equipment<ftp://ttl.arcadetech.org/TTL/Test_Equipment>
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>>>>>
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>>
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Received on Sun Mar 10 17:29:59 2013