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Merchant Navy TTS can't read CVs from Railmaster


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I put a Hornby airsmoothed (is unrebuilt even a scabble word!) MN TTS decoder  in a secondhand but unsued channel packet and while I can set its CV from my Elite controller but  when I scan the CVs form railmaster I can't read most of the CVs excepting 3, 7, 8   The sound works and the train moves  when asked to from either the Elite or RailMaster  but this niggle is annoying so has anyone else seen this?

In my defence I have no trouble with seeing cvs on other locos with a variety of decoders including other tts units . I did reset the cv8 to 8 on this unit and that worked as the lodco iD reverted to 3 as expected but otherwise the some problem existed.  I can set the extended addresses OK to (I have it set to 211).

Thanks as always

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Before you ask it to read CVs right click on CV7 and pick a TTS steam decoder from the drop down list.

This slill force it to load the TTS CV list .

The chances are RM thinks you have an R8249 decoder not a TTS one.

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