SMPI issue

[AK48]

hello, I do not know what is happening with my SMPI but it is stubborn and does not want to know anything, (see video) when I put on the pulse delay, it emits a normal sound but when I turn on the tuner, the sound disappears, does anyone have an idea, thanks you


https://youtu.be/wt1fxrPkYAI

[eduardo1979]

I think your search coi is flooded. In the past I had the same problem with a surf master. The salinity of the seawater shorted inside the coil and the detector had the same problem as yours. Try another coil.

[kt315]

i had answered https://www.geotech1.com/forums/show...996-SMPI-issue

[kt315]

Try another coil.
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you do not open a video. he does not show a reaction on metal. he shows
POWER ON, delay pot, and BATT CHCK, tune pot. ALL ARE GOOD.
same like must be.
a time to send board to me. i have to desolder it and give new winter project to people.