A few weeks ago I set up my little fm transmiter to test and it worked just fine. I then took it apart to mount it in a hobby box from RS. When I inished soldering everything and before applying power ( I are smart) I ohmed out the ground and the 12V points and sure enough I hear the dreaded beep of a short. I carefully removed the board, checked every connection for a solder bridge under a loop and can see nothing wrong. There is no short on the antenna connection, that comes up clean as does the audio connectors, it's only the power. Is this thing caput or what else should I check?