Andrew-818747 Posted June 2, 2021 Share Posted June 2, 2021 I am looking to buy Hornby R3748 terrier 0-06-0T 13 Carisbrooke. Having never fitted a decoder before, I need to know the best one to buy. The engine is DCC ready with a six pin socket. Many thanks Link to comment Share on other sites More sharing options...
ColinB Posted June 2, 2021 Share Posted June 2, 2021 I have just bought one of these. Taking it apart it appears you need a 6 pin decoder with leads rather than the direct plug in one. The Service Sheet recommends using a 6 pin wired one and wrapping it above the connector. The 6 pin direct plug in one I doubt will fit there is not enough room. The Hornby one might fit, but in mine I am going to use the Zimo MX617 as it is slightly shorter than the Hornby one. I think it will fit much better. Link to comment Share on other sites More sharing options...
Howbi Posted June 2, 2021 Share Posted June 2, 2021 Hattons have an installation video showing how to fit the Hornby R7150 6 pin decoder.p.s. just for clarity, this Terrier is R3848 Link to comment Share on other sites More sharing options...
ColinB Posted June 2, 2021 Share Posted June 2, 2021 I am wondering if the Zimo MX616N will fit. It is only 8mm long so I think it might plug straight in. The only issue is it is £32 as opposed to £20. I will have to take mine apart again and measure the DC header that is in there at the moment. Link to comment Share on other sites More sharing options...
Going Spare Posted June 3, 2021 Share Posted June 3, 2021 Colin - I have been unable to find a Service Sheet for the new Terrier. What is its number, please? Link to comment Share on other sites More sharing options...
Howbi Posted June 3, 2021 Share Posted June 3, 2021 @GS........it is R3848, there is no service sheet. The Hattons video shows clearly how the 6 pin decoder with harness fits easily.........HB Link to comment Share on other sites More sharing options...
ColinB Posted June 3, 2021 Share Posted June 3, 2021 It wasn't the Service Sheet it was the manual that came with the loco. Link to comment Share on other sites More sharing options...
ColinB Posted June 3, 2021 Share Posted June 3, 2021 I just looked up R3848. It is exactly the same as mine. I suspect you got the same cheap deal off Amazon, so there should be a printed Service Manual in the box which shows you how it fits. Link to comment Share on other sites More sharing options...
ColinB Posted June 5, 2021 Share Posted June 5, 2021 I needed to fit a decoder in mine so I ordered a Zimo MX616N to see if it will fit directly without the need to wrap wires. I will keep you posted. I didn't realise the Hornby 6 pin is more expensive than the bog standard Zimo 6 pin. Link to comment Share on other sites More sharing options...
ColinB Posted June 7, 2021 Share Posted June 7, 2021 Yes a Zimo MX616N fits. Link to comment Share on other sites More sharing options...
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