I have a BMI locomotive that I had purchased used at a train show, according to the box & the manual it originally was DC with sound (DCC ready) From what I have been told it has a QSI decoder installed.
The issue I am having is that when I try to re-address the loco to the road number (776) speed & direction will respond but the sounds & lights remain on address “03” I have tried everything I could think of, even took it to the local shop & their DCC “guru” had no success (he is the one that told me the decoder was QSI)
I am using Digitrax programming track, & I believe he uses NCE for his programming
I have noticed some glitches with long address progaraming with those QSI decoders. You might try looking up the proceedure for programming the address using hexidecimal values into the correct CVs. I did that years ago with two QSI equipped BLI cab forwards and solved my addressing issues permanently.
For some reason the decoders didn’t like it when the command station configured the long address, but were fine with hexidecimal manual entry…
When I first read your initial post, I assumed that you had the original Paragon series. But, now, I think you have a loco from the Blue Line Series. The Blue Line locos are DC with sound, but you can add an after-market motor decoder. So, you wind up with two decoders that need to interact. If you have a Blue Line loco, that is why you have sound and lights but no motion.
When you get home, check the Item Number. If it is #187-5073, that is a Blue Line loco. Is it Union Pacific?
Yep, that is the Blue Line series. When you set the long address to 776, that changed the address of the QSI decoder but left the sound and lights decoder at address 03. The sound and lights decoder needs to be changed to 776 to match the QSI motor decoder.
Sorry, I edited that prior response which I initially got backwards.
When you set the long address to 776, that changed the address of the QSI motor decoder to 776 but left the sound and lights decoder at address 03. The sound and lights decoder needs to be changed to 776 to match the QSI motor decoder.
Leave the loco on the main track and select address 03. You should now be able to get sound and lights. Use OPS MODE programming on the main line to change the address of the BlueLine sound decoder to 776 so that it matches the address of the QSI motor decoder.
I have an NCE system, but I believe that you can program on the main line with Digitrax. Your Digitrax manual should explain how to program in the OPS mode on the main line.
It most likely will if you set CV17, CV18 and then CV29 individually instead of using the automatic setup. You can get the values you need for your desired address here:
Congratulations on your success in getting the loco to run along with sound and lights.
You can get Blue Line locomotives to accept four digit long addresses, but if you are not comfortable with CV settings, sticking with a 2 digit address such as 76 will work as you noted.
Just for future reference, be aware that the Blue Line sound and lights decoder has a factory default that accepts only 2 digit addresses. But that factory default can be overridden by changing CV29 from 6 (the factory default) to 38. That needs to be done on the mainline in OPS mode.