On 02/14/2015 5:39 PM, John Robertson wrote:
On 02/13/2015 3:34 PM, John Robertson wrote:
While I have some of the documents for this KK test fixture I don't have all - I am looking for a page KK Drawing #9350014 which is the self test signatures for the 309C card, I am having some incorrect signatures from it, and I've hidden my Cinematronics Exorciser a bit too well...time to dig it out I guess.
I suspect the 309C is the same as the Cinematronics card, but can't find my schematics for the latter one either, just the PDF manual.
Bah!
John :-#)# OK, the 309C is a relaid out Cinematronics Exorcisor, however the IC pin outs are all different (same ICs). I did find a Cine schematic and should be able to sort this out a bit more...however the original document would be nice to add to the archives and save me a few hours of tracing.
John :-#)#
Further: Did anyone ever check the Cine Exorciser against the self test results? I am finding that the CLOCK has to be on the Falling edge, not the Rising edge to get the correct signatures. So the setup is: Start - Falling Edge Stop - Rising Edge Clock - Falling edge Another oddity (at least with my KK 309C) is that the 74LS163 inputs are all floating! Is that the same on the Cine unit (I still can't find my NOS one - too many boxes!) that you have? I would have expected them to be tied either to ground or Vcc (pull-up), but those inputs are not shown on the Cine Exor schematic either. John :-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/