Hello
I built a surf pi kit a number of years ago, I had it all working really well and it was detecting great. I was ready to assemble coil/electronics onto an arm and take it out however I carelessly left some neodymium magnets which were serving to connect the batteries together in the box with electronics and they caused the batteries to short against some random components on the PCB. Since that day, the detector powers on, and even seems to work(just barely) at detecting metal objects when passed over the coil. It's performance is about 1% or what it was but there is definitely a very slight difference in tone when an object is waved over the surface of the coil, but not even close to usable. Ive repeated the standard device tuning procedure but it definitely seems to have sustained some damage. What's the best way for me to isolate the issue? I have a DVM and a single channel scope. There's no sign of physical damage on PCB components.
Thanks
I built a surf pi kit a number of years ago, I had it all working really well and it was detecting great. I was ready to assemble coil/electronics onto an arm and take it out however I carelessly left some neodymium magnets which were serving to connect the batteries together in the box with electronics and they caused the batteries to short against some random components on the PCB. Since that day, the detector powers on, and even seems to work(just barely) at detecting metal objects when passed over the coil. It's performance is about 1% or what it was but there is definitely a very slight difference in tone when an object is waved over the surface of the coil, but not even close to usable. Ive repeated the standard device tuning procedure but it definitely seems to have sustained some damage. What's the best way for me to isolate the issue? I have a DVM and a single channel scope. There's no sign of physical damage on PCB components.
Thanks
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