rogerzilla Posted February 13, 2022 Share Posted February 13, 2022 (edited) Bought this on the Bay of Thieves, came not very well packed. Took ages to guess the CV1 because I don't have a permanent programming track - turned out to be 55. Heathen. Anyway, the lights turned on and off but it showed no interest in moving, and applying power merely turned the lights out. I gave it a nudge and it showed some interest, so I put a drop of lube on each bogie and, with a bit more encouragement, got it running (badly) in both directions. But it kept losing contact with the decoder (carrying on at a constant speed even if the STOP button was pressed on the Dynamis) and I couldn't programme it at all. So I set up a programming track, set CV8 to 8, and started again. Now it runs like a dream and can be fully programmed. The question is: was the non-running and rough running entirely due to the decoder getting in a tizz, or did it really need lube as well? Can a squiffy decoder cause hesitant running? Edited February 13, 2022 by rogerzilla typo Link to post Share on other sites More sharing options...
Nigelcliffe Posted February 13, 2022 Share Posted February 13, 2022 Decoder issues. - Nigel Link to post Share on other sites More sharing options...
rogerzilla Posted February 13, 2022 Author Share Posted February 13, 2022 Thanks. It all works well now but the Zimo decoder is one of the older ones without the F2 brake function, so I may swap it out for the later version. I seem to remember that they are inexpensive. Link to post Share on other sites More sharing options...
pauliebanger Posted February 13, 2022 Share Posted February 13, 2022 Most, but regretably not all, older ZIMO decoder types can be updated quite easily by loading new firmware which includes the ability to set Brake Key function. What type is fitted? If you don't know for sure, read CV250 and from the value in that CV the decoder type can be identified. (if your Dynamis can read the CV). From this you can work out or we can advise you if the relevant update is possible. Best regards, Paul Link to post Share on other sites More sharing options...
rogerzilla Posted February 20, 2022 Author Share Posted February 20, 2022 CV250 is 233. CV7 is 31, CV8 is 145 and CV65 is 57. Link to post Share on other sites More sharing options...
pauliebanger Posted February 20, 2022 Share Posted February 20, 2022 Quote 3 hours ago, rogerzilla said: CV250 is 233. CV7 is 31, CV8 is 145 and CV65 is 57. That's a ZIMO MX622 decoder with software V31 .57. This software does not support the Brake Key feature. MX622 decoders can be updated to the latest software V40.5 which does support the Brake Key. Please not that there are two hardware versions of the MX622, the one you have (CV250 = 233) and a 2019 revision (CV250 = 192). As far as I know, the Brake Key feature is not affected by this difference. (but there are some recent new facilities which will not operate with the older version - due to the smaller flash memory of the older one). You will still benefit in other ways from updating to V40.5 Best regards, Paul Link to post Share on other sites More sharing options...
rogerzilla Posted February 20, 2022 Author Share Posted February 20, 2022 Thanks. I don't suppose you know of any specialist that does an update service? A new 6 pin decoder is only £20, so it's up against that. Link to post Share on other sites More sharing options...
WIMorrison Posted February 20, 2022 Share Posted February 20, 2022 If you know anyone with a Z21 then they can do the update for you - I don't know where you are in the country to suggest where you could go. If you're local to me, then I would do it for you. It takes all of 5 minutes. PM me with your location, if you want me to do it. Link to post Share on other sites More sharing options...
pauliebanger Posted February 20, 2022 Share Posted February 20, 2022 There will be many people on here who have Roco Z1 or ZIMO MXULF who can help, including any ZIMO dealer. So, as Iain has suggested, let us know your location (not full address) and someone will probably be able to help. Paul Link to post Share on other sites More sharing options...
rogerzilla Posted February 21, 2022 Author Share Posted February 21, 2022 I'm in Swindon (someone has to be). Link to post Share on other sites More sharing options...
pauliebanger Posted February 21, 2022 Share Posted February 21, 2022 Sorry, I'm in Lincoln. The postage each way would be getting close the price of a new decoder. Paul Link to post Share on other sites More sharing options...
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