Hi These days I am working hard on the layout ( 16' x 16') to find a short circuit that came in suddenly , intermittent at first but now solid .... I can run my programming track , I installed a DPDT toggle switch 15 years ago on that siding , if I disconnect the rest of the layout . 10 years ago I have separated the layout in 3 sectors , one run by a DB150 no short there , another run by a TAM booster no problem there also . The DCS100 is the "master" and is taking care of the long mainline , I was able to pin point the short circuit on the first half of the layout , the other half is ok , there is power to that section . In all my work fooling around under the layout and also at command station I first lost allthe power to track , I was able to repair that by pressing "POWER and Y+" . Power came back but now I cannot control anything .... On my DT400 or DT402D it's marked 10.0 volts and under it's ch15 . Can't press anything to choose a loco or switch or nothing , it's frozen there , I tried to disconnect it , plugged it directly in DCS100 , no success , 4 sound locos are on the track with lights on with idling sound ( burning fuel ) , but I can't log to them . Model Railroading is fun they say ....