Thanks to jxtrxx...yes the 1000 Ohm resistor did the trick immediately on programming those cheapo Bachmann DCC Onboard decoders....just as you said..it may take a few attempts before the values "stick".
Yes, to tstage....they are made by Lenz
But I made a separate post here to ask this quesiton. I've never used such an old decoder that doesn't program up to 4 digit addresses automatically. What does this mean?
Is it that for CV 17 I enter the first 3 digits of the 4 digit address, and for CV 18 the last of the 4?
I have already set CV 29 bits so that CV 17 and 18 are functioning.
Cisco Kid wrote:... I've never used such an old decoder that doesn't program up to 4 digit addresses automatically...
Thanks to you both.
What a process! Imagine needing that calculation and the maker not putting any reference on their manual about how to go about it.
That link to Tony's trains is really helpful.