Tesoro sand shark doesnt change tone......any ideas?

SADS 669

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Jan 20, 2013
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Long Island, Bahamas
Detector(s) used
Tesoro Sand Shark....Aqua pulse 1B....Equinox ll
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Tesoro sand shark doesn't change tone......any ideas?

My sand shark turns on......gives all the correct noises across the normal start up but will not react to any metal dry testing ( there is a very faint change in tone but not much) it normally screams out.

I have changed all the knobs to minimum, Maximums etc with no luck, I put new batteries in too.....

Any ideas apart from sending it to the factory which I suspect it needs.
 

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cudamark

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Mar 16, 2011
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San Diego
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XP Deus 2, Equinox 800/900, Fisher Impulse AQ, E-Trac, 3 Excal 1000's, White's TM808, VibraProbe, 15" NEL Attack, Mi6, Steath 920ix and 720i scoops, TRX, etc....
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I suspect a bad coil or corroded coil connection.
 

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