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<p>I had the same problem when I first got my PE.  For some reason when I tried to cross over my parallel tracks I would get the "SVDA" code.  I was using old (Approx 10 15 years) Atlas Turnouts.  I replacedc the TO's where there was a problem with new Atlas TO's and there was no more prblem. I'm no expert, but Once you change over to DCC you may want to get rid of the blocks.  It may cause more shorts.</p><p>Smitty</p>
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