G, thanks for the advice on that. TVS shorted. is that something I can do easy or someone like you could fix? I really don't want to be messing on a board if I can mess the whole thing up. Why would that short out?
Originally Posted by GGG:
You can power Aux power with that for testing. I would power via AUX, then use the Z-1000 brick to power Fix2 and see if that works, if so, than test VAR1 an 2. If they all work, the TVS probably shorted on FIX1 and that can be repaired.
Let me add that the only way a TIU gets power is via Aux input or Fixed 1 Since several people mentioned....G