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Things really should not be this complicated Wolf. N scale sound decoders (when running) will use less than 1A of current (probably closer to 0.5A). In programming mode, that will be even less. If your power supply dedicated to programming can supply 0.5A or more, that should be plenty. Well, the PR3 itself needs some power to, so let's say 1A power supply should be more than adequate.OPS mode programming is not optimal. You doing it blindly since there is no read-back capability. So troubleshooting is difficult. Also one of the perks of DecoderPro is that it keeps a record of all the CVs in all of the decoders you own. So when a decoder "blows its brains" (which I can guarantee will happen at some point), you can easily restore all of its CVs from the DecoderPro roster. But you know that.I guess if the ECO-100 is the only decoder that is incompatible with your PR3 and DecoderPro, then it is not such a big deal. OPS programming will likely work. If I do OPS mode programming I remove all the other locos on the track - just being very cautious.
The PR3 is well known to often need a bit more juice than the PS14 can supply. On the Digitrax Yahoo mail list people regularly replace it with regulated wall wars of 1A and voltages from 16v to 20v. I bought a regulated 18v 1A on Ebay for under $10 which made a big difference in reliability. Although it still couldn't program my BLI PRR M1a/b Paragon 2 decoders. I bought a SPROG for them.https://www.ebay.com/itm/Generic-18V-0-8A-1A-800mA-1000mA-AC-DC-Adapter-Charger-Power-Supply-PSU-5-5-2-5/250966420357?hash=item3a6ec3ab85:g:NrsAAOSw32lYwMZp
This is great -- thank you, for the heads-up!! I will pick one up. -- Question: will the plug work with the PR3 -- or will I need to switch it out with the one from the PS14 - ?Thanks again,Wolf
@reinhardtjh OK, WTH is a SPROG??
Good job Wolf! Problem solved, and the solution was logical and understood. (not just an unexplained fix). While OPS programing "should" be safe, I don't trust it. If for some reason the PS programming command ended up sent to address "0", all the locos on the track would accept it (as it is a broadcast address). At least, that is how I understand OPS programming.
POM is a fully supported programming method, and in theory it should be perfectly safe. But I have been around electronic devices (and humans, who sometimes make mistakes) to be cautious. If something goes wrong (due to an electronic or a human errror), you end up reprogramming all the locos sitting on the track. So while I do use it myself, if I can, I avoid it. And, as mentioned, it has limitations (it is a write-only process).
As mentioned befor, POM is absolutely safe and for me it is essential for tweaking the sound CV’s. You will here the effect immediately.Marc