Sunday, March 13, 2011

only the battle has been won...



well after some serious diagnosis, goose chasing and alot of pin pointed tested.. its running. 100%
ALL SYSTEMS ARE A GO!

itseems there was a bad solder connection on the CV A channel that was casuing it to have a output of -1.3 v.. weird. but i resoldered and reheated things and BAM! there it was.

so second issue that was left . the gate B line. it was not reaching full hysteresis threshold for the 40106 portion of the circuit to flip and invert. so everythin after that wasnt happening. it took a long while to track down the culprit. there was somethin in the gates' led cathode bus that was grounding when it shouldne have been. another issue i had was that the B rows leds were VERY bright even with the same value resitor in place to ground as the A line.. this was a shining example of where i should have started to look. im supposing that there was something .. aerrant piece of wire/solder/metal .. SOMETHING that was connecting that bus to ground. since when i was testing and isolating things.. i discoed the bus line from ground and the leds still worked!?!?!?! W T F ? so obviously somewhere else something was touching to ground. after a while and another weirdness, it went to normal. ! hot damn! but im not sure why the other weirdness happened.. the CV A's tl084 snapped and POPPED! just like that. it totally shit itself.. nothing touched it, connected with it or anything... so i replaced that and began a full test .

so now every module works as it was designed to.
including the prototype of the SLIDE>. its mad sweet.

now all thats left is the module for the xternal clock trigger comparator-buffer and the wiring of the trigger outs to 2 DB25's for the gate hold module. then that guy gets tucked into his case and ever so gently put into place.... man i cant wait!
here are some pics and videos.

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