I am trying to use my MTH TIU's Variable Track 1 - the TIU is REVL - i am using two z1000 bricks - one to power the Fixed Input 1 and the other connected to Variable Input 1. i am using the MTH leads that have one connection to the plug on the connection to the transformer and two banana plus to the TIU. I tested the voltage off each of the Z1000's and it registers 20vAC at each of the binding posts. when i hook leads from the Variable 1 Out to the track and use the DCS Handheld to select TRK, Variable 1,Name the track - them access Track screen it shows the Track Name-Variable1Out and 0.0 volts. as i turn the scroll knob and increase the voltage it shows 5.0, then turn more it goes up progressively till around 11 volts then the breaker on the transformer trips - the fuses in the TIU are all ok. there is nothing on the track - so i disconnected the output to the track - tried again to raise the voltage and the voltage on handheld shows that it supposedly goes up from 5 to 5.5 to 6 to 7 etc then the transformer trips out again. i put a meter on the Variable Output! while i was moving the knob to raise the voltage but never got any indiction of voltage going up. the Tiu has power and the input voltage is constant to the Fixed Input - I have been careful about the leads etc so nothing is shorted out - I have also tried different transformers and the same thing happens - what could i be doing wrong
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