I haven't posted to this thread before and decided today was a day for some train humor at my expense.
I couldn't sleep so at 3:30AM I started working on a few things. It was time to wire up my AIU for some operating accessories so I got out the instructions, wired everything up, double checked the wiring and instructions, turned the power to the AIU on, did the programming and nothing happened.
After I tried this about 5 times you get a little aggravated. So I redid and rechecked all the wiring and it was all good but still didn't work.
It was about 5AM when I decided it would be a good idea to turn on the transformer to the accessories because I have them powered separately (not just power to the AIU) and everything worked great!
Enjoy! Terry
Terry,
That is something I would do, so I am laughing with you. One would think that after working 38 years as an electronics technician and engineer, I would be immune to such lapses. Not so. At work, I have a massive spreadsheet checklist so I remember everything on all my projects. It still doesn't help. 
Maybe it is time for me to think about retiring and making O-Gauge trains my vocation. 
