Art Rodfai Posted June 19, 2020 Share Posted June 19, 2020 (edited) Hi guys, need some help and advice for a Dcc noob here. I installed digitrax decoder on my Kato DE10 model (n scale). I’ve been told it is similar process and same decoder as the glacier express model. However, after put it on the track it got buzzed sound and light flash once (sometime on-off) but motor won’t move. I put it on program track and try to CV-R (digitrax zephyr D51) but the read back was error ‘d nd’ and the train move a bit before stop. I searched the internet and there are suggestion about motor short circuit. But I cloudnt find where the problem line. Pls help. Edited June 19, 2020 by Art Rodfai 1 Link to comment
Art Rodfai Posted June 19, 2020 Author Share Posted June 19, 2020 Here the a link to the video Link to comment
Kiha66 Posted June 19, 2020 Share Posted June 19, 2020 Welcome to the forum art! It looks like the motor contacts were not sufficiently isolated from the frame. In your photo you show tape on the frame, but its possible it did not cover everywhere and the the buzzing sound is likely the motor vibrating on DCC track power. When I do that style of installation try to use a full width of tape and cover more frame than needed. If you have a multimeter handy you can test for continuity between the chassis and the motor lead on the decoder to see if that is the source of your short. Hopefully the decoder is still good, if not digitrax has a great warranty department and should replace recently purchased decoders for free. Link to comment
Art Rodfai Posted June 19, 2020 Author Share Posted June 19, 2020 Thanks @Kiha66 I'll try to insulated the motor tab again, hope it work. Cheers Link to comment
inobu Posted June 19, 2020 Share Posted June 19, 2020 That sounds like a DCC DC short that is very bad. Never make an initial test on a live track. Always test on the programming track first. The programming track will make quick little test to verify the decoder install. In some cases you can destroy the decoder or Command station testing on the main. Start over and verify if the decoder is still good. That high pitch sound is pure DCC. Inobu Link to comment
Art Rodfai Posted June 23, 2020 Author Share Posted June 23, 2020 Just wanna update, I fixed the issue as you all recommenced. Put insulate tap on the outside of the motor taps and done. Another a wee bit of problem I found is when put back the body it pressed on the decoder and it made the decoder sunk a bit. It's cause decoder loosen contact with the body frame and coz a short! So I need to put a tap underneath decoder to make it thicker a bit and fit the whole thing. Now it's run smoothly. Thanks for all advices. 3 Link to comment
All Japan Posted May 26, 2023 Share Posted May 26, 2023 What DCC Decoder did you use here? Link to comment
Wolf Posted May 26, 2023 Share Posted May 26, 2023 As OP refers to Digitrax, I would assume its a Digitrax DN163K1D Link to comment
chadbag Posted May 27, 2023 Share Posted May 27, 2023 You should be able to use any Digitrax or TCS decoder that replaces that light board (TCS look up for the Digitrax equivalent). I believe there are some smaller brands in Japan that also fit. Link to comment
Madsing Posted May 29, 2023 Share Posted May 29, 2023 I have used a Digitrax DN163K4A in my Kato DE10. Ordered the MT40 K3066RA recently, but not received yet: http://wiki.mt40.info/doku.php?id=mobiledecoder2:k3066ra @chadbag Have you tested the MT40 decoders? Marc 2 Link to comment
chadbag Posted May 29, 2023 Share Posted May 29, 2023 @Madsing I have not tested my MT40 decoders I bought yet. I've not really had the time or place to do any train work and won't until the house project is done. They are high on my list to try though as I am interested -- especially as you can get the project files and do your own if so inclined. 1 Link to comment
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