Hi all... I have an odd behaving TIU. It's just an extra, not used much, so repair is not really an issue. I paid very little for it and a hand held so expense is not a concern. The other day I was attempting to program an engine, i.e. load a sound file, while using a Lionel 90 watt transformer. I notice the power knob give slightly and exceed it's normal travel limit. Didn't really seem like much to worry about, but apparently it caused this transformer to wildly vary voltage output. I had successfully loaded the sound file but there were some problems with the engine that required a trip to the bench to rectify. At this point I wanted to load a name into the engine but now the TIU reported No Engine to Add. Check Track. No DCS Engine. I tried resetting the remote and another add same results. This is when I actually discoverd that the transformer was not performing as it should. So I exchanged it for an MTH 750 brick. Same results. All this was being done using Fixed 1, for both track and logic power. Next I tried a different engine, same result. Finally I tried aux power and Fixed 2 and all worked as expected. Now comes the strange part. If I switch every thing back to fixed 1 I can run the engine added but with each command I get a check track message when ever the system expects an answer from the engine. I still cannot add an engine, but can run an engine. Any thoughts?
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