Reply to "No output from TIU variable channels"

 Testing the var channels might go something like this ... Power to fixed 1 or an aux power supply to turn the TIU "on"

Full power to VAR 1 IN     select Menu/ System/ DCS set up/ select the or high lite VAR 1 and select FXD..... There is a slight delay and after a couple of seconds  VAR 1 out should come to life.... repeat with var 2. If you get voltage it's time to add a engine or do a track signal test. good luck