Super D Posted August 6, 2011 Share Posted August 6, 2011 Which Hornby decoder is fitted in their DCC fitted locos? Link to comment Share on other sites More sharing options...
Gregd99 Posted August 6, 2011 Share Posted August 6, 2011 not sure but would guess 8249.the 8215 has been phased out and the 8245 (sapphire) is too expensive/complex for many.Greg Link to comment Share on other sites More sharing options...
cooped Posted August 7, 2011 Share Posted August 7, 2011 I'm not sure what it is, but it's not 8249. I have one DCC fitted loco, all my others were DCC ready with 8249 fitted by me. The DCC fitted loco rather annoyingly won't accept long addresses so whatever it is it is more basic than the 8249.Dan Link to comment Share on other sites More sharing options...
Super D Posted August 7, 2011 Author Share Posted August 7, 2011 cooped said:I'm not sure what it is, but it's not 8249. I have one DCC fitted loco, all my others were DCC ready with 8249 fitted by me. The DCC fitted loco rather annoyingly won't accept long addresses so whatever it is it is more basic than the 8249.Dan Link to comment Share on other sites More sharing options...
Super D Posted August 7, 2011 Author Share Posted August 7, 2011 My experience also Dan Link to comment Share on other sites More sharing options...
Gregd99 Posted August 7, 2011 Share Posted August 7, 2011 interesting....what are the values of CV7 and 8 (see http://members.optusnet.com.au/nswmn2/DCC.htm#CV78 for info)Greg Link to comment Share on other sites More sharing options...
cooped Posted August 7, 2011 Share Posted August 7, 2011 Well, this is strange. Each time I read CVs 7 and 8 I get different numbers, wildly different. I tried with a loco with an R8249 in and it came back with CV7 being 131 and CV 8 being 48 which I think matches what it should be. My NCE powercab has a function that reads the manufacturer number then the version number so I tried that and it gave me 255 for the manufacturer number, which isn't listed on the NMRA manufacturer list, and 12 for the version number. I then tried again and it again came up with manufacturer #255, but this time is was version 255. The only conclusion I can come up with is the decoder in here is not NMRA compliant. The loco is a couple of years old now, R2637X, a Stanier 4MT, it may be different in newer locos. Link to comment Share on other sites More sharing options...
poliss Posted August 7, 2011 Share Posted August 7, 2011 Are you reading the CVs on the programming track? Link to comment Share on other sites More sharing options...
cooped Posted August 7, 2011 Share Posted August 7, 2011 Yes, well I don't have an actual programming track so I'm using the main with everything else removed. Can't read the CV values when trying to program on the main so no choice but to use the programming track function. Link to comment Share on other sites More sharing options...
poliss Posted August 7, 2011 Share Posted August 7, 2011 It appears, from what I can gather, that a value of 255 indicates that this CV is not currently supported and its contents should not be transmitted.This probably indicates that the decoder is the old R8215 which didn't support the read back feature. Link to comment Share on other sites More sharing options...
cooped Posted August 7, 2011 Share Posted August 7, 2011 Well that could be. I'm most likely going to switch it for an R8249 at some point. I know the one and only DCC fitted loco I bought has made me sure I will always buy DCC ready and fit my own. Link to comment Share on other sites More sharing options...
bocaj Posted August 7, 2011 Share Posted August 7, 2011 I Think the Decoders in most, if not all DCC Fitted locomotives have strange 7pin decoders in them instead of the standered 8/21 pin decoders that go into DCC Ready Locomotives.Hope this helps,Jacob Link to comment Share on other sites More sharing options...
cooped Posted August 7, 2011 Share Posted August 7, 2011 You know what they say, a picture is worth a thousand words, so here is the DCC fitted decoder inside my loco. Standard 8 pin connector in a DCC ready socket, just ripe for switching out!http://i816.photobucket.com/albums/zz86/cooped/808042898_photobucket_43694_.jpg Link to comment Share on other sites More sharing options...
bocaj Posted August 7, 2011 Share Posted August 7, 2011 I think some of them have 7 pin decoders in them and some have 8 pin decoderds in them. Link to comment Share on other sites More sharing options...
Gregd99 Posted August 7, 2011 Share Posted August 7, 2011 some early dcc-fitted locos from Hornby did have a 7 (or 6?) pin socket. I would expect that locos a couple of years old would indeed have the 8215 fitted. It would be interesting to know what is in the current locos. I would guess 8249.Greg Link to comment Share on other sites More sharing options...
Gregd99 Posted August 7, 2011 Share Posted August 7, 2011 another question.... In the photo provided it looks like the decoder was pressed down on top of the 8 pin plug in the dcc-fitted loco you bought. this is the same as I have done with my Fowler 2-6-4T - anything else was too hard for me.did the dcc-fitted loco have an insulating sleeve fitted or tape or ??interested to know.Greg Link to comment Share on other sites More sharing options...
cooped Posted August 7, 2011 Share Posted August 7, 2011 Hi Gregthere was no insulating sleeve, but there is a piece of insulating tape on the other side of the decoder that you can't see in the picture and there was a piece of tape also on top of the 8 pin plug to insulate the plug from the decoder when there were pressed together. I took this off so the plug was visible in the picture.It would be interesting to know if the new DCC fitted locos have R8249 in, it could change my mind over buying them or not. Sounds like a question for Hornby Customer Care!Dan Link to comment Share on other sites More sharing options...
Gregd99 Posted August 7, 2011 Share Posted August 7, 2011 cooped said:there was no insulating sleeve, but there is a piece of insulating tape on the other side of the decoder... there was a piece of tape also on top of the 8 pin plug to insulate the plug from the decoder when there were pressed together.that's another interesting input to the oft discussed "do I use tape/sleeve/??? when installing decoders?" question. Link to comment Share on other sites More sharing options...
Hornby Customer Care Posted August 8, 2011 Share Posted August 8, 2011 Dear All,The only engine that ever used the 7-Pin decoder is the Virgin Pendolino, every other loco either uses the 4-Pin; this is normally little engines like the 0-4-0 and 0-6-0, most other engines use the 8-Pin socket. We do not produce 6-Pin decoders.All our new engines are fitted with the R8249 decoder, which is identified with a blue spot. Some of the older locos may have the R8215 these can be identified with no spot, white spot or a red spot. Link to comment Share on other sites More sharing options...
Gregd99 Posted August 9, 2011 Share Posted August 9, 2011 and there we have it:-)Thanks Link to comment Share on other sites More sharing options...
Super D Posted August 9, 2011 Author Share Posted August 9, 2011 Thanks from me also.Derek Link to comment Share on other sites More sharing options...
Caggers Posted October 13, 2011 Share Posted October 13, 2011 [reply]Hornby Customer Care said:every other loco either uses the 4-Pin; this is normally little engines like the 0-4-0 and 0-6-0, So which chip is in the 0-6-0. I think I have fried mine and need to replace it.Thanks Link to comment Share on other sites More sharing options...
Flashbang Posted October 14, 2011 Share Posted October 14, 2011 Caggers said:[reply]Hornby Customer Care said:every other loco either uses the 4-Pin; this is normally little engines like the 0-4-0 and 0-6-0, So which chip is in the 0-6-0. I think I have fried mine and need to replace it.ThanksEasiest is to remove the body and have a look! Leave body off until replacement decoder is obtained and fitted. :-) Link to comment Share on other sites More sharing options...
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