maxmn_98 posted:I swapped the leads around and the fix voltage output works on the upper loops. The lower loops do not work with the variable outputs but the H-8 does light up but just sits there. It does not respond to commands. The test engine a PS2 doesn't react at all but it worked on the upper loops responding to all commands. Any idea what I should look for with the lower loops. Based on the test the TIU appears to be working properly. My setup track uses one of the fixed outputs and the engines react as they should. Note: the engines are PS2's.
Since the upper loops work off of both the fixed and variable TIU outputs, but the lower loops do not work with either the fixed or variable TIU outputs, it sure seems like the problem lies within the lower loops themselves and not the TIU.
Are the loops electrically separated ?
Have you tested the DCS signal strength on both upper and lower loops ?
