baz47 Posted May 5, 2021 Share Posted May 5, 2021 I have 2 schools class loco's that are fitted with TTS sound decoders, St Pauls has movement but no sound and Seven Oaks has neither, where can I purchase new sound decoders as I can't find them anywhere Link to comment Share on other sites More sharing options...
ColinB Posted May 5, 2021 Share Posted May 5, 2021 Hornby don't do them anymore, why I do not know. As I am always saying they are the same hardware with just a different set of software loaded. I gather Hornby has to order a batch at a time, so I imagine at the moment they see no market for that flavour of TTS decoder, so they have not ordered a new batch. This might be a long shot but have you thought of contacting Hornby Customer Service, they might be able to help. Link to comment Share on other sites More sharing options...
96RAF Posted May 5, 2021 Share Posted May 5, 2021 What goes around usually comes around, so you may find a re-run at some point in time.In the meantime have you tried resetting the ones you have as they may be OK. Link to comment Share on other sites More sharing options...
Bulleidboy Posted May 6, 2021 Share Posted May 6, 2021 I assume the St.Pauls has been "re-fitted" with TTS - it came originally with a LokSound V3.0 decoder. Link to comment Share on other sites More sharing options...
96RAF Posted May 6, 2021 Share Posted May 6, 2021 In that case Barry maybe this will be useful to the OP.https://support.hornby.com/hc/en-gb/articles/360016117980-Schools-Class-Steam-Loco-Version-3-LokSound-Manual Link to comment Share on other sites More sharing options...
Bulleidboy Posted May 6, 2021 Share Posted May 6, 2021 Very useful Rob - assuming the loco is in its original format. Link to comment Share on other sites More sharing options...
96RAF Posted May 6, 2021 Share Posted May 6, 2021 The clue being if it is a 21-pin original decoder or 8-pin TTS decoder.The ESU decoder will have a 100-ohm speaker whilst the TTS decoder will have an 8-ohm speaker. Link to comment Share on other sites More sharing options...
Bulleidboy Posted May 6, 2021 Share Posted May 6, 2021 The service manual appears to cover loco's with an "X" after the "R" number - St.Pauls is "R2898XS". I have this loco - bought new in 2011 - ten years ago. Were 21-pin decoders around at that time? Link to comment Share on other sites More sharing options...
96RAF Posted May 7, 2021 Share Posted May 7, 2021 Suffix X means DCC-Fitted and XS means ESU Sound-Fitted.XS were all 21-pin.Hornby ESU sound has been around for a long time using their own sound files, so you wont find them on the ESU download site. Link to comment Share on other sites More sharing options...
Chrissaf Posted May 7, 2021 Share Posted May 7, 2021 I have two Hornby RnnnnXS locos, both are 21 pin ESU Loksound. One a V4 and the other a V3.5 and both purchased brand new in 2013. Link to comment Share on other sites More sharing options...
ColinB Posted May 7, 2021 Share Posted May 7, 2021 Normally if an ESU sound decoder fails, the company normally does a deal where they replace the broken decoder with a new one for the cost of £30.00, but it doesn't cover this early version, as I found out recently. They also use a 100 ohm loudspeaker which is unusual. Hornby also used them on the City of Sheffield Coronation class. Link to comment Share on other sites More sharing options...
Bulleidboy Posted May 7, 2021 Share Posted May 7, 2021 I believe "sound" was in its very early days so perhaps that explains the 100ohms speaker. I have City of Sheffield which I received as a gift in 2008 - the "speaker technology" has moved ahead in leaps and bounds since that time. I have several early "XS" models but have never opened them up. Link to comment Share on other sites More sharing options...
96RAF Posted May 8, 2021 Share Posted May 8, 2021 100 ohm speaker was only used by the v3/3.5 from memory and the v4.0 used a 4 ohm but could drive an 8 ohm.A problem is would (or even could) Hornby provide these early XS loco sound files for a user to reblow a dead decoder given the user had an ESU programmer to hand. Link to comment Share on other sites More sharing options...
ColinB Posted May 8, 2021 Share Posted May 8, 2021 I got the opinion when I was repairing one initially fitted to a Bachmann that Loksound v3.5 sound decoders were an obsolete item. When I contacted South Western about a replacement, I was told they no longer support this version and don't do the cheap (£30.00) fix for it either. This is where you send them your old one and they send you a new one. I even contacted the German Headquarters and got roughly the same response. When I was looking at the decoder trying to figure out why the input diodes had just blown, I did notice all the "hot" components were on the underside and very near the 21 pin connector, which is not so good as it doesn't get much cooling, I think they have fixed it on their later designs. So basically while it is working leave it alone, once it fails, bin it. In my case I had nothing to lose, as even if I blew it up trying to fix it, I had lost nothing. Link to comment Share on other sites More sharing options...
KrazyKris Posted March 11, 2022 Share Posted March 11, 2022 HiAre any of the Hornby TTS sound decoders Railcom compliant ? Link to comment Share on other sites More sharing options...
96RAF Posted March 11, 2022 Share Posted March 11, 2022 @KKNo Link to comment Share on other sites More sharing options...
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