MRC DCC Decoder

  
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The AD322 is an 8 amp G-Scale DCC decoder. The notes below may be of benefit to owners who wish to understand or repurpose (`hack`) the decoder. It has a rather full set of functions that could easily be repurposed for a number of other projects. One modification that comes to mind is to add two reed switches so that magnets on the track can trigg
MRC DCC Decoder - schematic

er the bell and/or horn. This would be valuable for those who don`t have those functions on their DCC Controller. By testing each pin with an oscilloscope I gleaned the following by cycling through various functions on the board. Note that pin 1 is in the upper right corner in the photo - next to the small round dimple. Pins are counted 1-10 from right to left for the top row and 11-20 from left to right across the bottom.



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