Re: 9010 Z-80 Pod Help needed

Kevin Moore wrote:
> Not saying this is it, but I've had 2 instances where I would get a 00
> on selftest, and it turned out to be a bad connection on the zif
> socket.
>
> Kevin
>
>
> On Sat, Mar 9, 2013 at 9:09 PM, Justin Johnson <rugd2go@comcast.net> wrote:
>
>> 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
Could also be a problem with the 40 pin cable, try the one from the 6502
pod before going too deep into repairing this pod.

John :-#)#
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Received on Sun Mar 10 15:12:01 2013