8-pin Ic List

[Angelique Syria]

FirstI want to applaud Hornby. This is an excellent solution for DCC. Using an App to control your trains effortlessly without needing a degree in coding to get loco settings up in a CV profile is a common problem with most users of DCC controllers.

I have now purchased over thirty 8-pin and 21-pin HM7000 Bluetooth decoders with sound. Most I purchased from the Hornby website itself as a club member. I want to get a list together by as many club members to show all the locos from Hornby we have now installed as a community in our locos.

Please let me know what Hornby locos you have installed an HM7000 Bluetooth decoder to and what ones you have trouble with so club members can get a full list of locos that can fit the new Bluetooth decoder.

Here we go again. I have watched both videos from the two contributors that you mention. Now Jenny Kirk was quite honest and pointed out the very many locos that they won't fit. Sam, who I assume you are talking about, pointed out that a certain configuration didn't fit any of his non Hornby locos, which is true. It is also of great use to Hornby, I nearly bought one of the HM7000 series Plux18 ones to fit into my EFE class 143 which would have been really bad news, it is about twice the size of the available slot. Similarly he raised the issue of using any DC power supply to power said module. Hornby should have realised that there are many DC controllers out there that generate unfiltered DC with peak voltages well in excess of 20 volts, I pointed this out many posts ago. The solution is easy, just put a large capacitor across the outputs and this issue should disappear.

As a final point I have bought a very many locos off Hornby this past two years, ones that I would never have bought because Sam did an extremely honest review of them. If he says they are good then they generally are, sadly the same can't be said of the other reviewer. So you may hate him, but he probably makes Hornby a lot of sales in the more obscure locos they make.

I do have one loco fitted with HM7000, it is the rebuilt purple West Country Queen Elizabeth it still has the default sound loaded as I use Android products, so least said about that the better. The other issue I had was that the 21 pin HM7000 that the loco uses didn't sit correctly on the socket as Hornby had placed a small connector on the bottom of the PCB. Funny on the 8 pin variant both sockets are on the top. I had to replace the mounting screws for the PCB for it to sit nearly properly and work reliably. So not what I would call a perfect experience. I must admit I am used to buying products that fit without any modification. It is interesting that you got it to fit in a Duchess class loco, even with a TTS decoder and a super thin speaker it is a squeeze, especially tenders fitted with the inner sloping coal hopper.

Just wondering, where did you fit the decoder in your R3569 BR Class 71 Blue? I have the same Loco. Unless I remove the fake Booster plastic piece and put it there, the only other place I can see it will fit is under the PCB.

I disagree with your assessment of the Class 61xx series of Prairies. As Fishy points out you can simply remove the supplied decoders and fit your own. I have fitted an 8 pin TXS with speaker and power bank, (Speaker in one of the side tanks, decoder and power bank in the coal bunker) into a R3719X, which is essentially the same as the two you mention, just different liveries.

You are right in that I fitted the main bluetooth decoder and speaker under the PC board on the R3569 BR Class 71 Blue. I just disassembled my loco for you and created a small video showing it running with the model top off so you can see it does fit and work with the HM7000 fitted.

I have also created a video with the model loco resembled. I have also taken a few pictures as well for you. I will load them up to We Transfer and give a link but I think under the rules of the forum I need a moderator to approve the video in a we transfer link before I post it. Please can 96RAF or RogerB please give guidance for helping me share my video with Wayne.

Most appreciated. Can you please list the catalogue numbers as there is certainly a difference with old and new tooling on the steam locos so some models fit the decoder in the tender whist others in the actually engine. I know this is not the issue with most diesels but if we get a catalogue list R number of actual locos working with HM7000, I hope it helps everyone.

The purpose of my list was for what locos fit the HM7000 series of bluetooth with speaker using the app. The 8 pin HM7000 with speaker cannot fit in these two Prairie locos. I am waiting for the bluetooth only (no sound speaker) version to come out in the summer and see if this fits. I think it may.

If you you referring to the Prairies in the range R3719 to R3725 then the 8 pin TXS decoder, speaker and power bank, (stay alive) definitely do fit, unless there is a difference in dimensions between one and another, but I believe not. I fitted an R3719 only a few weeks ago. As I said, speaker with its smallest enclosure in one of the side tanks, decoder in the under side of the coal bunker. Then by removing the coal and drilling a 5mm hole in the floor below, the power bank fits snugly with its wire fed through the hole and plugged into the decoder below. Then the coal can be put back in over the power bank.

Thank you for the info and going to the trouble of disassembling to take the picture. That's how I trial fitted it. I have got my decoder in but removed the Booster for the time being. Was a bit concerned about heat from the motor.

In relation to the original post I would assume the HM7000 will work with any loco, it is after all a DCC decoder, the big issue is whether it will fit. It would be interesting to see if it works in a Wrenn with the decoder in the loco body.

Being lent a loco to test is not a 'freebie' Colin. By definition an item on loan would be returned rather than retained by the recipient. She doesn't hide the sponsorship of her channel by the rival decoder manufacturer so the use of one of their adapters is hardly relevant and definitely not relevant to the bias your earlier post infers.

Well SteveM6 we tend to differ in our views there but that is no surprise. As to 96RAF, have you not heard of fast forwarding a video, there are some people that probably find that interesting. Some people get really concerned about what the packing is like. I must admit I am not generally interested in the packing unless it is extremely bad, I am more how easy it is to get apart for a DCC decoder and its mechanism, which Sam does a really good job of doing. There is another reviewer I watch that tends to waffle a lot, but hidden in there are some hidden gems of information, so I will put up with the waffle to collect that data.

To be quite honest Fishmanoz the list would have more relevance if it listed whether each loco needed modifying to fit the HM7000. Jenny did cover this quite well in her video, identifying what locos it would fit and the one she modified. I have seen locos where someone has machined away the highly detailed tender interior, covered it with a false top with coal on to get a sound decoder to fit. Sure it fits, but not everyone including myself wants to do that. Quite often with a lot of 8 pin DCC decoders I have often shorted the wiring harness by resoldering it and in other cases taken a Zimo 6 pin decoder, because it is small, and added the necessary 8 pin header. Sure it fits in the loco but not everyone has the ability to do that. The HM7000 is a DCC decoder so it should work in any loco as long as the current limit is not exceeded. The bigger issues are with size and whether in the case of the 21 pin option the lower connector doesn't interfere with anything. I do wonder if it would work inside a metal bodied loco like a Wrenn because of the Faraday cage effect, the new Hornby HDs get away with it because their tenders where the decoder is fitted, are plastic.

Then I suggest you start your own list of models that need to be modified to fit HM7000 Colin. None in this list will be on yours (an assumption knowing that these can make a donkey of you and me, as the saying goes).

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