Hi, you may have tried, but before you turn on anything in your rig, ground yourself to anything that will disperse any static charges that have built up. Winter is notorious for this; touch the screws in a switch plate, or even the metal corner bead on the edge of Sheetrock corners. Yes, I"ve gotten zapped like that. I also recommend touching your rig stand and hold it for a second or so, put your foot on the fc7, then turn on your rig as normal. Sounds nuts but this works, AND if you walk away or leave the rig while it"s running, be sure to ground out again, just grab the stand. Besides the snap charge on the finger, I can hear the discharge faintly in my amp. Good luck! â¡ï¸