I have had this problem recently except it happened when switching gold or ground modes. I was switching back and forth to check target signals and lost all audio. It has happened twice and both times i have had to power off the Z to get the sound back. 🤷♂️
I have also noticed that my buttons don’t react that fast. I could fly through the buttons much easier if it would not take a full second or two to switch modes or select things. Is this normal? I have no one to compare this with. I had my GPS fixed under warranty and asked to have my screen changed out since it was scratched, in the process they replaced the front panel, I could have swore it worked faster before they put a new one in. No warranty now.
Maybe a hard restart or factory reset is in order and reinstall the firmware? 🤷♂️
I have had GP machines from the Extreme to the 4500 and nothing has EVER broken despite thousands of hours in the field being banged around, in the back of my pickup and on ATVs over rough trails.
I noticed that my GPZ has started rebooting and loosing it's current setting whenever I lay it on the ground. I have used one of Docs protective covers since I bought it.
I took off the cover and found this:
It appears that one of the pins that holds the battery in position has sheared off likely causing the reboot issue:
Luckily the broken pin was still in my big Minelab protective bag:
I'll try to epoxy it back on and treat the detector as if it is made of glass from now on. I'll admit that I have occasionally let it drop to the ground from a foot or two when going to dig a target. An apparently very bad habit I acquired when using the GPs. No more..
I'll see if I can fabricate a pad for the broken stand since I don't see this part available from ML separately.
I bought the machine used with about 10 hours of prior usage, so no warranty for me.
Just posting this so you guys won't have the same issue.
I’ve done a bunch of research online and I just can’t seem to find this. Does anybody know if there is a detailed video on each of the menu items/settings for the GPZ along with examples in real world environments? I realize that when I’m out in the field now, after continually reading this forum, that I kind of stick to the same settings that I’ve been using for a long time (except for changing between high-yield and general, as well as normal and difficult). It’s winter time, I am bored and I’d like to learn more on my GPZ 🤣🤣. Even if this is not a YouTube video and it’s some thing I can purchase I’d be willing to do that as well!
For years I ran the GPX 5000 Threshold setting with a faint audible level by following the book; which is condensed as follows;
Through a process of dynamic noise compensation, Smart Electronic Timing Alignment (SETA) ensures that the threshold stability is improved and maintained, allowing you to operate the GPX 5000 with maximum efficiency under all conditions.
Threshold is the constant audible background hum or noise produced by the detector.
On the front panel rotate the variable Threshold control to achieve a very faint but still audible noise level. It should be smooth with only minor fluctuations.
The Threshold is your reference point and lets you know what the coil is sensing, whether it may be a target, ground noise, or electrical interference, so it is important to set the threshold so it can be heard. When a target is detected, the Threshold changes in volume and pitch. Listen to the threshold carefully. Concentration is an important part of detecting. A very deep or small target may only cause a very small change to the Threshold noise.
Listening for a target signal with a high level of Threshold noise would be like trying to hear a whisper within a crowded noisy room. A high Threshold may also be uncomfortable to your hearing.
If the Threshold level is set too low (less noise) very soft target signals, from small or very deep targets, may not be heard.
It is important to reset the Threshold level as conditions change. For example, your ears may adjust to the low levels of audio after an hour or so, or the conditions may have become windy.
So here are my concerns;
With the GPZ 7000 I find it difficult to achieve the low quiet hum of the GPX 5000. I get the trying to hear a whisper within a crowded noisy room effect. The constant high noise level makes it difficult to listen for small changes that would indicate a small shallow or large deep nugget. So I tend to run it far below the default setting of 27. And much of the time I run at a setting of 1.
Another problem is related to the control differences between the two machines. The GPX 5000 has a simple variable Threshold control with no numbers to be concerned with.
The GPZ 7000 has digital values which appear to be inverted in function. Attached is an edited illustration from the GPZ 7000 manual that displays my view or understanding of how it should be described.
By Robert Eaton Jr
Hey everybody. I've been working my butt off to try to get ready to go find gold.Sometime seems like one step forward two steps back. A week and a half ago I was at the bottom of gold hill outside Virginia City, testing out the GPZ in the gold monster with my wife and kids, and when we put all the gear away I had my keys on the minelab vest, and stupidly locked them in the back of our car right at sun down. Being off the beaten path, and having to work had no choice but to smash my rear window to get the keys and get my family out of there. Just so happens that rear window is more expensive than my windshield at 500 plus dollars :-(.
Had to look of finding a free spirit Odyssey 45-in tent for only $2,000 near San Diego. Went down and picked it up, only to find out that the so-called towing Springs that I thought I ordered, and we're actually tihuan springs for a golf, and not the towing Springs that I thought. My mistake ordering them, now my car sags, and I've got a cough up another $160 and change the Springs myself. Times money. To make things even better, on the way back through the Mojave desert my heater core went out. Fortunately it's got a CPo warranty, unfortunately I can't trust the local dealership so I have to drive to Sacramento to have the dealership fix it, luckily it's only 50 bucks. And that covers this sway bar bushings too which are bad.
Yesterday I spent all day delivering doordash checking out Auburn and a little bit placer County. Forest Hill road and some other spots. Found an awesome mining store in Auburn. I like to get back today to metal detector it caught a land where I saw people excavating for a new home in placer County. I've got to work my butt off to pay off these bills, I hope I could get one or two hours.
I had went to Cold Springs to get some Paydirt with my wife from the bedrock that was exposed. So far I found tons of iron. Bringing it home to our kitchen, where I spent about an hour and a half learning to pan for the first time. With a five bucket gallon, it took me about a good hour to find a good rhythm. Wow am I a slow panner:(
I'm working on it, ordered some classifiers, and realized I need to get a sluice box or something to make that process go faster. I totally don't have any cash left to do that though...
So I also wanted to figure out how to make my GPZ and gold monster operate better where there's tons of iron. Sitting in bed right now I was just trying to set my machine with Steve's super hot settings, which apparently were not as hot as the ones I was running, when the ultimate nightmare happened.
Not even dressed, GPZ in my arms, I can see a gray line going down the center of the screen. Un freaking believable. I hardly used my GPZ yet. Not the hundreds of hours required. I've never dropped it I have no idea how this happened. Every free second of my day I try to spend looking for gold. there's no way I could afford to part with it for a couple months to send it to Australia. I'm hoping there's some way to have it fixed we're able to fix itself. Has anybody ever seen it a grey line in their display?
Now my f75 LCD is worse than my GPZ, and my poor GPZ has a line through it... I never let it go in lower than 15-20°....
What better way to ring in the new year than going nugget shooting in the sunny desert southwest. 😎 In my wanderings through an area heavily worked by the old-time placer miners, I spied an old raked and drywashed nugget patch on a hillside that sloped down to a gravel bench deposit high above the dry creek bed. Back in the VLF gold detector era, the surface rocks were raked away in order to get the detector coil right on the ground, to make up for their limited depth capabilities. Detecting these types of environments with the newer PI and ZVT tech can reveal deeper nuggets that were beyond the reach of VLF detector operators. Slow and methodical coverage of the old patch with the GPZ 7000 yielded two small nuggets for the poke today.