update, i got my hands on a different cpu, installed it, and same problem. So i did the self confidence test, and the dsp, and pmi boards were no go, traced problem down to bad pmi3 board, unplugged it from rack, re did self confidence test, and everything passed except the pmi3 board of course, so i thought i was good to go. only problem, is the cpu led continues to slowly blink, 5 seconds on, 5 seconds off the good car blinks at one second intervals. even though self-confidence test passed, cannot communicate with the cpu with IMS, other car is fine. So i unplug everything except cpu, and same thing, no communication via IMS. seems like i should be able to communicate with cpu, without any pmi boards installed. both cpu do the same thing, could i possibly have 2 bad cpu? i don't think the software is bad, as the confidence test was good, said parameters were all go, i think it showed the version not sure now, ran out of things to do, so i replaced the 5 volt power supply, even though it was good, same thing. now I'm wondering, if it will run if i just replace the PMI3, although i doubt it, but one is on the way. any ideas? kind of strange, this is my first go at the tac50, thanks
