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Messages - noblepa

#1
HO / Re: Replacing a decoder
February 17, 2025, 12:23:36 PM
Thanks, Jeff,

That is kind of what I thought.

I bought this loco on a whim. I didn't even know, at the time, that it was DCC equipped. I'm not sure whether to try to sell it on eBay or try to use it on my DC layout. I fgured that its worth a lot more if I can tell a potential buyer that it definitely works.

You mention disabling the DC mode. Is it possible to disable the DCC mode, allowing me to use it on my DC layout, while still retaining the DCC capabilities? I have a friend with DCC who could program it for me.

Thanks for the information.
#2
HO / Replacing a decoder
February 16, 2025, 12:25:12 AM
I am new to the DCC world. I recently acquired a Bachmann "DCC Equipped"  EMD FT locomotive that doesn't run.

Upon opening it up, I could see that the decoder is fried.

I have purchased a BACH-DSL decoder made by NCE. Is this the correct decoder for this locomotive? Physically, it looks exactly like the old one.

I have read the installation instructions that came with the decoder. Removing the old decoder and soldering the new one in place looks to be very straightforward. I'm pretty good with a soldering iron and I have one with a very fine tip.

On page 3, it shows how to cut the "104" capacitors located in the fuel tank. This is after the discussion about replacing the decoder and testing it on a programming track. What is the purpose of cutting this caps? Is it necessary? Is it the case that the original decoder needed these caps while the replacement does not?

Lastly, assuming that I am able to properly install the new decoder, is this a dual-mode decoder? That is, will the locomotive operate on a conventional 12v DC layout, or does it only operate in DCC mode?