[Techtoolslist] 9010 Z-80 Pod Help needed

[Kevin Moore]

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 at 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

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