I have to ask this, and hesitated for a long time to put this forward. Before I found out how easy it was to install ERRs systems, I had a SF F3s that were gifts converted from PS1 to the ERR system, using ERR system. I then wanted my NYC MTH PS1 F3s ABA converted also using ERR Cruise kits.
So I have to ask Gunrunner John this question. He did the conversion, but after almost a year and learning to install ERR system on several steam and Diesel engines, I wanted to control the cab light as I had done on my SF and several other Diesels with the smoke control button, but, aghast, when I opened the NYC F3s, I discover that ERR system was not installed as agreed to. So what boards were installed. and were these boards repaired from pulled boards, and can this be a viable way to recover other boards, systems from older engines to still have TMCC?