Gary NZ Posted April 29, 2019 Share Posted April 29, 2019 Just bought a new Hornby R3585 Class 90 and fitted a New hornby R8249 decoder. Programmed OK but when I went to run it (elink) it went to full speed checked it on the program track again - same thing dosen't matter if I click slow or fast same thing happens _ help!!! I have used these decoders lots with no problems Link to comment Share on other sites More sharing options...
Chrissaf Posted April 30, 2019 Share Posted April 30, 2019 This sounds like DC runaway where the decoder can see the DCC track voltage but cannot see an electrically clean DCC signal superimposed upon it..You can turn off 'DC Operation' by amending the value of CV29 (using your RM / eLink). Amending CV29 is specifically covered in the RM manual on page 71..If after disabling DC Operation in CV29. the loco does not move at all under any DCC control, then the R8249 decoder is probably faulty..Try a different R8249.The R3585 is a DCC Ready loco with socket, so if a known good working R8249 from one of your previous upgrades does the same. Then the R3585 loco circuit board maybe faulty.. Link to comment Share on other sites More sharing options...
Gary NZ Posted May 3, 2019 Author Share Posted May 3, 2019 Thanks, tried setting the CV29 to 000 stll does the same, will try another decoder now Link to comment Share on other sites More sharing options...
96RAF Posted May 3, 2019 Share Posted May 3, 2019 You can confirm if DC running is off by putting a 9v battery across the wheels. If it responds then CV29 is still wrong. Link to comment Share on other sites More sharing options...
Gary NZ Posted May 3, 2019 Author Share Posted May 3, 2019 Bought a new decoder same problem. Most of my locos are are hardwired except for the TTS ones, so didn't use one out of another. Just noticed on the slide bar at the top are 2 yellow squares which none of my others have. Have I done something wrong ??? Link to comment Share on other sites More sharing options...
Fishmanoz Posted May 4, 2019 Share Posted May 4, 2019 By the way, CV29 would best be set to 2 to give you 128 speed steps and no DC running. Link to comment Share on other sites More sharing options...
Chrissaf Posted May 4, 2019 Share Posted May 4, 2019 Just noticed on the slide bar at the top are 2 yellow squares........Not something I recall seeing before. For clarity of meaning, can you post a screen capture image showing these yellow squares. Images posted today are unlikely to appear before Tuesday as Monday is a UK Bank Holiday and admin (image approval check) won't be back at the office until then. Link to comment Share on other sites More sharing options...
96RAF Posted May 4, 2019 Share Posted May 4, 2019 ...Just noticed on the slide bar at the top are 2 yellow squares which none of my others have. Have I done something wrong ???Picture?? Link to comment Share on other sites More sharing options...
Howbi Posted May 4, 2019 Share Posted May 4, 2019 Thanks, tried setting the CV29 to 000 stll does the same, will try another decoder nowNo point in setting CV29 to 0 as this sets the speed steps to 14 which is obsolete.......the R8249 decoder is pre-programmed to 128 speed steps so you are probably getting a false result.....try setting CV29 to 2 which is the normal setting with DC running disabled........HB Link to comment Share on other sites More sharing options...
Fishmanoz Posted May 4, 2019 Share Posted May 4, 2019 There seems to be an echo in here HB. Link to comment Share on other sites More sharing options...
Gary NZ Posted May 5, 2019 Author Share Posted May 5, 2019 Hi ChrissafPhoto attached the one on the right has no problem, the one on the left has the problem. I also now have another with the same problem, the other 12+ locos all work fine. Yellow squares no yellow squares/media/tinymce_upload/beeeb0e785a29c216b45316dfd883186.JPG Link to comment Share on other sites More sharing options...
Howbi Posted May 5, 2019 Share Posted May 5, 2019 Aah, that'll be the jet-lag between Oz & UK Fishy....... 😮.......HB Link to comment Share on other sites More sharing options...
96RAF Posted May 7, 2019 Share Posted May 7, 2019 The lefthand throttle slider is corrupt being outwith the frame at top and bottom, also the slider segment colours are missing. Try a different colour scheme and see if the problem perpetuates, then report it in to HRMS mentioning you will follow up with those pictures when you get their response. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.