2e0dtoeric Posted May 11, 2012 Share Posted May 11, 2012 I know the answer has been posted before, but I can't find it! (sorry!)I've got a Derby lightweight two-car dmu, DCC ready, and I've fitted the loksound chip to the 'power' car. (The chip is bigger than the recess machined in, and there is nowhere for the speaker, but that's irrelevant) The dummy/trailer car requires a separate 8 pin chip, which I have fitted, but the head/tail lights work the wrong way around. How do I reset the chip so they work - red at the back!?Thanks. Link to comment Share on other sites More sharing options...
2e0dtoeric Posted May 11, 2012 Author Share Posted May 11, 2012 ps lights reversed in the trailing car! My question was a bit vague. Link to comment Share on other sites More sharing options...
poliss Posted May 11, 2012 Share Posted May 11, 2012 Try changing the default direction in CV29. http://www.2mm.org.uk/articles/cv29%20calculator.htm Link to comment Share on other sites More sharing options...
2e0dtoeric Posted May 11, 2012 Author Share Posted May 11, 2012 Thanks, I'll try that. Link to comment Share on other sites More sharing options...
Fishmanoz Posted May 11, 2012 Share Posted May 11, 2012 It isn't the decoder plug put in back to front is it? Link to comment Share on other sites More sharing options...
poliss Posted May 11, 2012 Share Posted May 11, 2012 Doubt it. Remember that the decoder will think the loco is going backwards. (Please don't make me search for all my technical linkies.) Link to comment Share on other sites More sharing options...
Flashbang Posted May 11, 2012 Share Posted May 11, 2012 HiPlugging a decoder in the wrong way around won't cause the lights to be wrong. Normally if the decoder is fitted the wrong way they just wont work at all!A lot depends on the DCC control system being used as some (e.g. Select) cannot set CVs directly.If you're a Select user you can change the normal direction of travel on the rear cab only (which corrects the lights) by placing that end unit only onto the programming track section and follow the instructions on the Selects manual page 12 "Correcting Locomotive Direction"If you have a DCC console that allows CVs to be read (Elite) then read CV29 value and add 1 (one) to the value read initially. Link to comment Share on other sites More sharing options...
2e0dtoeric Posted May 11, 2012 Author Share Posted May 11, 2012 Sorry - yes, it's an Elite, and there is no motor in the trailer car, just lights. I don't think the chip is plugged in backwards, as the cab light comes on on command, it is just the running lights that are reversed. CV29 looks the way to go. Link to comment Share on other sites More sharing options...
Flashbang Posted May 12, 2012 Share Posted May 12, 2012 HiAs you have an Elite then refer to the manual page 23 "Changing Locomotive DirectionSetting" Do this to the rear non powered unit end only. This will automatically correct the wrong direction lighting problem. Link to comment Share on other sites More sharing options...
2e0dtoeric Posted May 12, 2012 Author Share Posted May 12, 2012 Thanks, FB Link to comment Share on other sites More sharing options...
Blackbird Posted May 15, 2012 Share Posted May 15, 2012 A decoder (8 pin) plugged in the wrong way WILL work, only drive direction and lights will be reversed. Functions, the additional 2 pins will also be reversed on input instructions. Link to comment Share on other sites More sharing options...
Fishmanoz Posted May 15, 2012 Share Posted May 15, 2012 How about the blue common postive not being in the right place Blackbird - won't that affect functions including lights? Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.