Thanks John for your great offer. I have an older pre-Rev L TIU that I believe has the same problem. So my plan is to service two track circuits with one TIU feed from my Rev L TIU, and have a look at the four TVSs in the older TIU to see if one of them is bad. This way I can continue to run trains as I bootstrap my way back to a fully functioning TIU. Thanks for your insight and offer to mail a needed part. Tom
|