mineoro fg/90

[RIMES]

Hi,
Thank you Geo.
Here is a picture of the ion chamber area, all their baseline IC are cleared as the photo shows.

[RIMES]

I measured the voltage between the pins 1 and 8, I found 9.70 V.

[WM6]

What a waste of electronic parts. Take it away, one could build something really useful.

[Geo]

I measured the voltage between the pins 1 and 8, I found 9.70 V.

Also you can measure at pin1 and pin4, must be again 9.7V. If yes then it is a 555.
I believe that it is an oscillator for an IR Led at front of pcb.
My opinion is that it is not neccesary to connect it.

[Geo]

Behkli, can you tell me who is the capacity of 3 yellow capacitors beside the toroid coil??

[Geo]

What a waste of electronic parts. Take it away, one could build something really useful.

Hi Jaka.
In practice, Mineoro is a RF receiver. They can make it better but i think that they don't like a different design.

[RIMES]

Behkli, can you tell me who is the capacity of 3 yellow capacitors beside the toroid coil??

Hi,
this device has been short circuited (poles inverted stack).
For yellow capacitors, the figures, I believe, are 103, 561 and 561 (very small).

[Geo]

Thanks for info about capacitors.
What do you mean with "device has been short circuited (poles inverted stack)", how poles inverted???

[Qiaozhi]

Thanks for info about capacitors.
What do you mean with "device has been short circuited (poles inverted stack)", how poles inverted???

I think he means that the batteries were inserted the wrong way round.

[Geo]

I think he means that the batteries were inserted the wrong way round.

Yes, but in who state is now, did he replace the voltage regulator or not.
From the voltage that read at U5 i believe that there is not any problem.

[RIMES]

Yes, but in who state is now, did he replace the voltage regulator or not.
From the voltage that read at U5 i believe that there is not any problem.

I have not replaced the regulator, until now, I bought one today and I will have replaced and I will give you the result,
Thank you for all.

[Geo]

I believe that the voltage regulator is OK because output is near to 9V. If it was faulty then the out would be near to 18V or zero.
If you try to replace it try to take a photo of full pcb.
I must remember you that Mineoro detects only no iron objects buried many years ago (if weather conditions are good..... (temperature and moisture)), and not fresh gold as rings!!!.

[RIMES]

But watched the test for this device has been achieved on a ring.

https://www.youtube.com/watch?v=dBNvr7xpQwg

[RIMES]

Hi,
This is a full PCB of FG90

[Geo]

I believe that the voltage regulator is OK because output is near to 9V. If it was faulty then the out would be near to 18V or zero.
If you try to replace it try to take a photo of full pcb.
I must remember you that Mineoro detects only no iron objects buried many years ago (if weather conditions are good..... (temperature and moisture)), and not fresh gold as rings!!!.

Yes, but if the video is True and not false (for promotion reason... to show how it works) then the ring is inside the sand for many years. A noble objects needs to be buried for many years so to create a big field called by many people (and me) "phenomeno".
You can check the Mineoro with a signal generator. Do you have one????