I've been having some trouble lately out of my mxt. Whenever I would be in coin and jewelry mode and ran my coil over a piece of iron I would get a iron grunt sound. It would also show a dime as a button while in coin and jewelry mode. I found out if I put slight pressure and an upward motionon the mode switch it would id it normally. So I called whites and they told me it was definitely the switch. I kinda figured out that is what is was. I haven't taken it apart yetbut from the looks of it not that hard. Take out two screws on each side disconnect the ribbon from the switch. Anyone here ever done this before?