[Techtoolslist] 9010 Z-80 Pod Help needed

[Chris Loggans]

--- On Sun, 3/10/13, John Robertson <jrr at flippers.com> wrote:


> From: John Robertson <jrr at flippers.com>

> Subject: Re: [Techtoolslist] 9010 Z-80 Pod Help needed

> To: "Technical Tools Mail List" <techtoolslist at flippers.com>

> Date: Sunday, March 10, 2013, 8:50 PM

> Justin Johnson 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

> > 

> According to the Z80 pod manual (up on the TTL archives) the

> correct flat (not-twisted) cable (W2) is 585141 - the same

> as the one used for the 6502 and 6802/8.

> 

> The 6800 uses UUT cable 685479.

> The 6809 & 8051 uses UUT (twisted) shielded cable

> 680595

> The 8080 uses UUT cable 680603

> The Z80QT uses shielded UUT cable 685461

> The Z8000 uses shielded UUT cable 650432

> 

> The twisted pair UUT cables are NOT interchangeable due to

> various pins being tied to ground. Not sure if the flat UUT

> cables have shared grounded pins but I suspect so...

> 

> John :-#)#


I just checked some of my POD's and 685495 is the twisted pair cable for the 8085 POD.  All of my Z80's have the twisted pair cable with the number John listed for the Z80QT: 685461.  Just to add one more to the mix, I happened to be working on my 8080 POD's today and can say that all of my 8080 POD's have a twisted pair cable with the number 685487.

Thanks,
-Chris