Hi,
I've got a REV L TIU which has been back to MTH due to the variable track outputs getting fried, and it came back a while ago seemingly fine. Recently I've been trying to change the TIU address and have run into difficulties. I get a 'TIU ERROR' message followed by a 'TIU ADDR ERROR' message shortly afterwards whenever I try to change the address. I've just upgraded from 4.2 to 4.3, done factory resets, everything I can think of and no success. If it were simply stuck at an address it would be one thing, but it seems to be fluttering between address 4 and 5, with the remote sometimes addressing it at one or the other. Right now it blinks on power-up as address 4 but the remote reads it at 5.
Any ideas beyond another return to the repair shop?
Thanks!