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Full write of stored CVs to restore corrupted decoder


 

I returned to my layout after a lengthy vacation and attempted to Start running a pair of locomotives that I had successfully speed managed to speed match, and found that neither loco would move. The track and wheels are not dirty. The start-up sounds work, and lighting, horn, and bell commands all work.

I am wondering if I can over write motor and speed settings stored in decoder pro. If so, what is the process?
--
Neil of Bird Town Minnesota -
Coffeeville Line


 

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Before you even try to go round "resetting" or "replacing every setting",? start to analyse why they don't move.?

Likely reasons are that their is a "consist" involved - either set in the command station, or set in the decoders.? (As to which, depends on the systems you're using).? ?Check for both, and clear them - for the command station look at the manuals for your system, for the decoders, read CV19 and if not zero, set to zero.??


- Nigel



------ Original Message ------
From "Neil Kryder via groups.io" <neilkryder@...>
Date 24/04/2025 13:58:13
Subject [jmriusers] Full write of stored CVs to restore corrupted decoder

I returned to my layout after a lengthy vacation and attempted to Start running a pair of locomotives that I had successfully speed managed to speed match, and found that neither loco would move. The track and wheels are not dirty. The start-up sounds work, and lighting, horn, and bell commands all work.

I am wondering if I can over write motor and speed settings stored in decoder pro. If so, what is the process?
--
Neil of Bird Town Minnesota -
Coffeeville Line


 

The fact that this is affecting 2 locomotives indicates that the problem is not anything to do with the decoders in the locomotives, so as Nigel mentioned above, I don't recommend resetting the decoders or overwriting any settings..? Something has changed since you speed-matched the locomotives.? You need to identify what that change was.? It does feel like something to do with consists.??
--
Tom


 

Neil,
Read this:


There's a list of things to check at the beginning of the post.


On Thu, Apr 24, 2025 at 6:58?AM Neil Kryder via <neilkryder=[email protected]> wrote:
I returned to my layout after a lengthy vacation and attempted to Start running a pair of locomotives that I had successfully speed managed to speed match, and found that neither loco would move. The track and wheels are not dirty. The start-up sounds work, and lighting, horn, and bell commands all work.

I am wondering if I can over write motor and speed settings stored in decoder pro. If so, what is the process?
--
Neil of Bird Town Minnesota -
Coffeeville Line



--
John Griffin

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