maxmn_98 posted:The TIU version is Rev. L but does not have the USB port.
this confuses me.
I thought all version "L"s had usb ports. Are you sure it's not an I?
If it is you may have to add bulbs or filters to the outputs and furthest points of the track.
You would have to go deeper and explain what your power is? what your track type and connections are? wiring size? why the voltage is varying so much?