Thanks for all the replies.
Did I mention the lights don't work? (F0)

I brought the loco to my LHC to buy a new decoder. After chastising me for buying something at a show he said to try for an answer here. He didn't want to sell me a new decoder (which i was ready to buy) until I had exhausted other avenues.

Jim,
> What brand decoder is it?
Not sure. All the box and documentation says it's an EZ Command. I *think* it's some type of Lenz decoder, but I can't tell which one.

It's a long skinny decoder with two sets of red/black power pickup wired - a pair on each end.
Here are the CVs:
CV1 = 3
CV2 = 10
CV3 = 1
CV4 = 1
CV5 = 255
CV6 = 1
CV7 = 46
CV8 = 101  (101 I found listed = Bachmann)
CV9  = 255
CV19  = 0
CV29  = 6

>What DCC system are you using for reading out the CVs?
I have a LENZ.

I found a Bachmann decoder CV list at:
http://www.bachmanntrains.com/home-usa/ez_content/1_Amp_Decoder_Instr.pdf
and
http://www.bachmann.co.uk/pdfs/DCC_onboard.pdf

and a CV29 calculator at:
http://www.2mm.org.uk/articles/cv29%20calculator.htm

The default CV29 is "6", meaning 28/128 speed steps and DCC/DC operation.

I played with the CV29 values, but no motion on the main.

Setting CV8 to "33" will reset the decoder. I changed some CVs, set CV8 to "33" and it reset to the defaults.

Oh! I set one more test. I set CV29 to DCC only and it wouldn't run on DC. Setting CV29 back to the default (both)  let it run on DC just fine.


Rob Carignan
Maine

Hi,

I have a Bachmann model # 60301 HO GP-40 "dcc equiped" loco that I bought at a show.

On the programming track I can read or set any CV, change the address and even reset to the default decoder settings. On the mainline - zip! No lights, no movement.

It does run on DC.

Any ideas? I don't think the decoder is bad, as I can read/write to it.

R Carignan
Maine