Adrock Posted March 21, 2015 Share Posted March 21, 2015 Hi, Does anyone know if the DCC onboard the above loco means there is a socket with an 8pin chip in it, so that I could remove it to convert to analogue or put a different chip in it? Link to post Share on other sites More sharing options...
RMweb Gold Phil Bullock Posted March 21, 2015 RMweb Gold Share Posted March 21, 2015 Hi there Yup any bachhy loco with DC suffix has chip installed - should come with blanking plate in accessory pack for you to swap if you want to run on DC. If its missing go back to Bachmann - or us DCC folks on here have plenty kicking around! Locos with DS suffix have sound chip and speaker installed but you can still do the same and sell the sound chip on here! Kind regards Phil Link to post Share on other sites More sharing options...
Adrock Posted March 21, 2015 Author Share Posted March 21, 2015 Phil, Perfect - many thanks for your quick reply! That explains it and makes sense, I wasn't sure if the decider was hard wired. Thanks again! Link to post Share on other sites More sharing options...
RMweb Gold Phil Bullock Posted March 21, 2015 RMweb Gold Share Posted March 21, 2015 Welcome! Phil Link to post Share on other sites More sharing options...
RMweb Premium melmerby Posted March 21, 2015 RMweb Premium Share Posted March 21, 2015 Hi, Does anyone know if the DCC onboard the above loco means there is a socket with an 8pin chip in it, so that I could remove it to convert to analogue or put a different chip in it? What's a 31-200DC? AFAIK some Baccy locos did get wired in decoders Keith Bachmann do not list a 31-200DC but 31-200 which is a Rebuilt Patriot Link to post Share on other sites More sharing options...
AMJ Posted March 21, 2015 Share Posted March 21, 2015 Bachmann Branchline 32-200DCOO Gauge (1:76 Scale)Class 8750 0-6-0 Pannier tank 9759 in BR black with late crest (DCC on board)DCC decoder fitted. Analogue compatible Looking at another Bachmann Branchline 32-209OO Gauge (1:76 Scale)Class 8750 Pannier Tank 3711 in BR black with early emblem.DCC Ready. 8-pin socket If it is anything like other locos they are just factory fitted decoders locos are usualy supplied with blanking plug. Link to post Share on other sites More sharing options...
pauliebanger Posted March 21, 2015 Share Posted March 21, 2015 Bachmann Branchline 32-200DC OO Gauge (1:76 Scale) Class 8750 0-6-0 Pannier tank 9759 in BR black with late crest (DCC on board) DCC decoder fitted. Analogue compatible Looking at another Bachmann Branchline 32-209 OO Gauge (1:76 Scale) Class 8750 Pannier Tank 3711 in BR black with early emblem. DCC Ready. 8-pin socket If it is anything like other locos they are just factory fitted decoders locos are usualy supplied with blanking plug. Many DCC decoders will run quite happily on DC (analogue). The top speed of models may be reduced slightly (not always a bad thing) and if it has a decent quality decoder, the inertia and/or BEMF settings which DCC use to provide realistic acceleration and deceleration with steady speed control, will also be used on DC. (ZIMO decoders can do this, others may too). So, yes, you can remove the decoder if you wish, but try it out with the decoder fitted first, you might prefer the way that power is delivered to the motor. Kind regards, Paul Link to post Share on other sites More sharing options...
Stevelewis Posted March 21, 2015 Share Posted March 21, 2015 Many users of Analogue do find that Locos with decoders fitted actually perform better with the decoder left in situ. I know of some users of Hornby Dublo & Wrenn locos who use analogue who have fitted decoders to some locos to improve slow running and give better acceleration and deceleration charicteristics. Link to post Share on other sites More sharing options...
Adrock Posted March 21, 2015 Author Share Posted March 21, 2015 Good spot - the title should actually be 32-200DC. Fat fingers from typing on my phone. I'll certainly be interested to assess performance of a chipped loco on DC so I would do so before removing anything internal. Link to post Share on other sites More sharing options...
RMweb Premium melmerby Posted March 21, 2015 RMweb Premium Share Posted March 21, 2015 Good spot - the title should actually be 32-200DC. Fat fingers from typing on my phone. I'll certainly be interested to assess performance of a chipped loco on DC so I would do so before removing anything internal. Ah-ha! Bachmann re-tooled GWR Pannier series then. I have 5 various of this family and they are good runners either as analog or on DCC but unfortunately I cannot comment on analog operation of a DCC fitted loco! All mine were non fitted versions in which I have fitted a decoder. The 8 pin socket sits on top of the chassis and is easy to get at. Just undo the two crosshead screws under where the couplings are fitted to the chassis and the chassis itself drops out. Keith Link to post Share on other sites More sharing options...
Ron Ron Ron Posted March 22, 2015 Share Posted March 22, 2015 Many DCC decoders will run quite happily on DC (analogue). The top speed of models may be reduced slightly (not always a bad thing) and if it has a decent quality decoder, the inertia and/or BEMF settings which DCC use to provide realistic acceleration and deceleration with steady speed control, will also be used on DC. (ZIMO decoders can do this, others may too). Many users of Analogue do find that Locos with decoders fitted actually perform better with the decoder left in situ. Don't forget the usual caveat about avoiding use with those nasty Relco type, so called "track cleaners", fitted and working. . Link to post Share on other sites More sharing options...
Richard Lee Posted March 22, 2015 Share Posted March 22, 2015 Don't forget the usual caveat about avoiding use with those nasty Relco type, so called "track cleaners", fitted and working. . I use the Gaugemaster-badged version on my layout (which is DC). It doesn't remove the necessity to clean track and wheels, but it seems to reduce the frequency of cleaning, and allows better slow running. I see it as a good thing. On the other hand, I believe that your warning about running DCC fitted locomotives with that type of track cleaner was spot-on. Link to post Share on other sites More sharing options...
Adrock Posted March 23, 2015 Author Share Posted March 23, 2015 Thanks to your suggestions, I tried a number of my chipped locos and all but one ran on the analogue controller perfectly. This was a Collett Goods loco that I hard wired myself and installed a Hornby R8249 decoder into the loco body. For some reason it just will not respond at all on analogue but runs perfectly on my DCC controller! Other locos that ran nicely on both include socketed and chipped locos, as well as a hard wired split chassis conversion. Any thoughts? Link to post Share on other sites More sharing options...
RMweb Gold RFS Posted March 23, 2015 RMweb Gold Share Posted March 23, 2015 Thanks to your suggestions, I tried a number of my chipped locos and all but one ran on the analogue controller perfectly. This was a Collett Goods loco that I hard wired myself and installed a Hornby R8249 decoder into the loco body. For some reason it just will not respond at all on analogue but runs perfectly on my DCC controller! Other locos that ran nicely on both include socketed and chipped locos, as well as a hard wired split chassis conversion. Any thoughts? It's possible that running on DC has been disabled in CV 29. CV 29 bit 2 needs to be set to 1 to enable the loco to run on DC. Link to post Share on other sites More sharing options...
Adrock Posted March 23, 2015 Author Share Posted March 23, 2015 Thanks for the tip. I've tried to check the CV value but don't really know my way around the Dynamis system too well. I think I get a "write error" when going to to CV 29 config, and then going to value 2. I also can't read the values on the chip as I get a similar error. Maybe it's not configurable on this chip... Link to post Share on other sites More sharing options...
RMweb Gold RFS Posted March 23, 2015 RMweb Gold Share Posted March 23, 2015 Assuming you are using 28/128 speed addressing on this loco, then you just need to set CV 29 to a value of 6. The Dynamis user guide explains how to set CVs starting on page 16. Link to post Share on other sites More sharing options...
Quarryscapes Posted March 23, 2015 Share Posted March 23, 2015 Hi, Does anyone know if the DCC onboard the above loco means there is a socket with an 8pin chip in it, so that I could remove it to convert to analogue or put a different chip in it? Yes it is 8pin, it will have a Bachmann decoder sat in a gap in the weight in the left hand pannier tank. If you want to run on plain old DC replace with a blanking plug, the difference in running quality is night and day! Not as bad as a Hornby Decoder, but then you know about that by the sounds of it! Link to post Share on other sites More sharing options...
RMweb Premium melmerby Posted March 23, 2015 RMweb Premium Share Posted March 23, 2015 Yes it is 8pin, it will have a Bachmann decoder sat in a gap in the weight in the left hand pannier tank. If you want to run on plain old DC replace with a blanking plug, the difference in running quality is night and day! Not as bad as a Hornby Decoder, but then you know about that by the sounds of it! Why do Bachmann need to remove metal? See here: http://www.rmweb.co.uk/community/index.php?/topic/83218-help-with-fitting-a-8-pin-decoder-to-a-dcc-ready-Bachmann-pannier/?p=1378184 A DCC chip fits on top of chassis without modification (this is a Lenz Standard + , not the smallest around!) Keith Link to post Share on other sites More sharing options...
Adrock Posted March 26, 2015 Author Share Posted March 26, 2015 Assuming you are using 28/128 speed addressing on this loco, then you just need to set CV 29 to a value of 6. The Dynamis user guide explains how to set CVs starting on page 16. Thanks - this solved it and I can now run the loco on DC! Strangely, it runs perfectly sweetly backwards. But it stutters regularly when running forwards. No issue in either direction on DCC...very strange indeed! Link to post Share on other sites More sharing options...
RMweb Gold Mick Bonwick Posted July 14, 2015 RMweb Gold Share Posted July 14, 2015 Thanks - this solved it and I can now run the loco on DC! Strangely, it runs perfectly sweetly backwards. But it stutters regularly when running forwards. No issue in either direction on DCC...very strange indeed! A common problem with this, and older, Hornby decoder(s). Link to post Share on other sites More sharing options...
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