Tesoro Vaquero Ground Balance issue

[pugguppy]

I recently purchased a Tesoro Vaquero I'm having trouble with the GB. I took it out for the first time today, but I can't get it to ground balance. I've read through the manual and I'm following every instruction. The ground I'm balancing on is free of metal. Regardless of where I turn the GB knob, I get a negative feedback. I've even cranked it all the way positive and its the same Negative feedback. Any idea whats going on? please help!

 

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[Terry Soloman]

Welcome to the forum! Do you have an electric dog fence; CCTV; HAM Radio operator, or High Voltage Electric wires near or in the area you are trying to ground balance in?

 

[pugguppy]

Nope. I've tried in a few different locations and it's the same result. :/

 

[pinenut]

I have an idea...

I recently purchased a Tesoro Vaquero I'm having trouble with the GB. I took it out for the first time today, but I can't get it to ground balance. I've read through the manual and I'm following every instruction. The ground I'm balancing on is free of metal. Regardless of where I turn the GB knob, I get a negative feedback. I've even cranked it all the way positive and its the same Negative feedback. Any idea whats going on? please help!

I'm sure that you know this, but I thought I'd mention it anyway. Since Tesoro uses 3¾ turn ground balance pots with no end stops..sometimes new users are a bit puzzled on where to start. If those pots had actual end stops, it would be lots easier for the new guy.

Try this.. Turn the GB knob about SIX full turns CLOCKWISE, then turn it back just one full turn counterclockwise. Recheck your ground balance again in all metal. If everything is working properly, you should now get a positive response as you're only one turn back from maximum positive. If you still don't have a positive response, again turn the knob SIX turns clockwise, leave it there and again check ground balance... You should be at max positive there.

A positive response will be an increase in threshold volume as the coil approaches the ground, and a negative response will be when the threshold tone goes quieter or "nulls".

IF you STILL have a negative response (where the audio nulls when the coil approaches the ground), then you may have a problem with your Vaquero. Not likely a Vaquero problem though; they're pretty trouble free.

Anyway, give that a try, then let us know what happens. Learning to ground balance is a little confusing at first, but once you know how, it just takes seconds.

 

[Professor of Engineering]

Hello Pugguppy,

Welcome to the forum from Massachusetts!

Pinenut has some very good advice. Also, if you go to "Youtube" and search for Tesoro Vaquero ground balance you will see the correct way to ground balance the detector.

Regards,

Doc

 

[pugguppy]

Thanks for the suggestion. I gave it a try, but unfortunately there were no changes. I think I may have to send her in.

 

[vpnavy]

..: Moved from New Member Introductions over to Brands > Tesoro for more exposure :..​

 

[Terry Soloman]

Have you called the factory yet? Ask for Rusty Henry.

 

[pugguppy]

It's fixed! I removed the coil and screwed it in again and *poof*, it works! She runs great now!

 

[steve1357]

Odd

If a coil wire is open, dont you usually get a solid tone that never stops? Or just TX coil?

Great it's working!

 

[pinenut]

Odd

If a coil wire is open, dont you usually get a solid tone that never stops? Or just TX coil?

Great it's working!

Maybe not fully open, but just some dirt or oxidation causing increased resistance..?
Guessing maybe it's not a brand new Vaquero (?).
Good that it's working now! puguppy, time to find some treasure!

 

[Terry Soloman]

It's fixed! I removed the coil and screwed it in again and *poof*, it works! She runs great now!

NOW GO GET SOME GOLD!