Alsared Posted August 17, 2015 Share Posted August 17, 2015 anyone had problems with Digitrax DZ126 loco decoders, i have installed 2 fresh out of the box and they refuse to work, no coms nothing.is there a way to test them ?? Link to comment Share on other sites More sharing options...
poliss Posted August 17, 2015 Share Posted August 17, 2015 Shouldn't be any problems unless you're using the Select or the basic Bachmann EZ Command. Link to comment Share on other sites More sharing options...
Alsared Posted August 20, 2015 Author Share Posted August 20, 2015 Shouldn't be any problems unless you're using the Select or the basic Bachmann EZ Command.How do connect the blue wire + I'm finding the instructions a bit confusing, they state the blue + is common and required for transponding but then I get a short circuit on track Link to comment Share on other sites More sharing options...
Howbi Posted August 20, 2015 Share Posted August 20, 2015 Hi Alsared, the Blue wire is to connect to each light, front & rear, if using lights. You would then connect the yellow wire to the rear lamp and the white wire to the forward lamp to complete the circuit. If you are not using lighting then these three wires should be taped up and insulated. Link to comment Share on other sites More sharing options...
Alsared Posted August 21, 2015 Author Share Posted August 21, 2015 Hi Alsared, the Blue wire is to connect to each light, front & rear, if using lights. You would then connect the yellow wire to the rear lamp and the white wire to the forward lamp to complete the circuit. If you are not using lighting then these three wires should be taped up and insulated.Hi howbimanOK if i disconnect the blue wire the the system wont read the CV's i just keep getting 'error repeating' if i connect the blue wire to the red track pick up it reads the CV but makes them all the same value of 225. i just dont understand what is going on. Link to comment Share on other sites More sharing options...
dynax Posted August 21, 2015 Share Posted August 21, 2015 the blue wire is the common positive for the functions, lights etc, and should not be allowed to touch any of the other wires, you have probably damaged the decoder, the red and black are the track connections, the orange and grey are the motor connections, Link to comment Share on other sites More sharing options...
tony_forward Posted August 21, 2015 Share Posted August 21, 2015 Alsared, if you have connected the blue wire to the track or any other pickup then you may well have blown the chips!the blue wire is the 'common' for lights /accessories AND NOTHING ELSE!Following is the correct wiring colour codesBorrowing from the NMRA DCC wiring Recommended Practices, RP-9.1.1, the colors and functions are: Red from right-hand rail power pick-up (or center rail, outside third rail, traction/overhead wire) to motor or interface. Orange from interface to motor brush connected to right-hand rail (or center rail, outside third rail, traction wire)* Black from left-hand rail power pick-up to motor or interface. Gray from interface to motor brush connected to left-hand rail.* White front headlight(s) power sink. Yellow rear headlight(s) power sink. Blue common (+) headlight(s)/function(s) power source. Black/White optional common (-) power sink. Link to comment Share on other sites More sharing options...
tony_forward Posted August 21, 2015 Share Posted August 21, 2015 Sorry, cant seem to sort the tabbing/paragraph setting, but you should be able to get the idea! Link to comment Share on other sites More sharing options...
Howbi Posted August 21, 2015 Share Posted August 21, 2015 For future reference, Alsared, this is the wiring diagram.../media/tinymce_upload/f5e49fb49c85027a0575e4eb0caa5363.JPG Link to comment Share on other sites More sharing options...
Alsared Posted August 22, 2015 Author Share Posted August 22, 2015 For future reference, Alsared, this is the wiring diagram...Thanks Howbinman got it now/media/tinymce_upload/f5e49fb49c85027a0575e4eb0caa5363.JPG Link to comment Share on other sites More sharing options...
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