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 :-#)# _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/