Hello everybody,
I have been running my T18 1 gauge loco for a couple of years with no problem, but now, a couple of the function do not work, and the rear light stay on all the time. Changing direction only make it flick, but stays on.
I am driving a Mylocosound card through relays, to get the sound, and I can now only activate 2 relays with the function keys (F3 and F4)

My question is, has anyone found a proper manual for that old 6905 decoder, especially, how to reset it to manufacturer set up? I can go into the cv, but they are all at the same value and cannot be changed separately!!!

So, I will appreciate very much if somebody can tell me how to reset that decoder and see if it fixes the problem.

Thanks a lot
Best Regards
Zurky

Oh yes, and I am using the Marklin Mobile station MS2