[Bobm]

I have just installed a ZTC 4007 decoder into a bachmann class 40 and Have been able to change the address etc. When the loco is placed on the track it just goes backwards for a short period then forwards and so on . It does this without any commands to the decoder from the controller. I have reset it to factory defaults but it does not have any affect.
Does anybody have an idea what the problem is or do i have a dud decoder

Thanks
Bob

 

[Bobm]

I always set up my locos on a programing track and I as able to read CVs and even been able to reset the decoder to factory defaults but it still does not seem to make any difference.

I am using gaugemaster prodigy DCC and have used TCS M1 , lenz Silver and have several SWD sound decoders, all of these work fine.

I will try an disconnect the capacitor and see if this makes any difference

I had no real reason to try the ZTC4007 just thought i would give them a go as supposidly all DCC systems are compliant with others

I will try and contact ZTC tomorow and see what they have to say

Thanks
Bob