vanquish Tiny PCB

[h9361]

Hello
Dear All
I created this thread to discuss and share our experience about tiny PCB of vanquish which is located inside of coil.
Yesterday, i opened my vanquish coil with difficulty and could reach to the PCB.
The PCB is strongly protected by ML because it has a different material for protecting.
Anyway, i almost could get the PCB but a resistor and three transistors is crashed during opening.
Unfortunately, i don't have the expertise to reverse engineer it. So, i share its pics (PCB, X-ray of coil and conceptual schematic of its pins) here. Maybe someone can help to do it.
X-Ray1

X-Ray2

PCB

conceptual schematic

I forgot to say, IC opamp of the PCB is T062 (i think it's TL062)

I also realized that Mr. Foma has been able to draw the schematic of EQUINOX. I think base of the Vanquish and EQUINOX pcb is the same. For better understanding, i also attached Mr. Foma's schematic.
Foma's schematic (EQUINOX Schematic)


Mr. dbanner also has been pointed to a possible mistake in Foma's schematic and edited it. I also attached his version.


I hope this information can help to reach a correct schematic for vanquish tiny PCB

[kt315]

you need to get a code for the micro. ML is again on their wave. nobody must not have a chance to do a copy of coil.

[h9361]

Thanks dear kt315
But copying the tiny PCB (inside coil) do not need to code (micro).
What we need, it is copying the pcb map and knowing its component.
After that, we can redraw it as Through-hole with equivalent component.

[kt315]

you do not see the micro on board. thats this chip with 6 pins like a smallest black bug. oh... you still do not know ML is evil, your happiness.

[h9361]

Thanks.
But i can not still understand.
See the board, there is not any micro chip (6 pins).
I think your means is 20T chip in Equinox schematic.
I attached a higher quality photo.

[h9361]

Dear kt315
Do you think 36c4p is diode ?

[kt315]

pin DATA is digital signal, in my opinion. some kinda one line of the interface. while i really do not know
what Foma wanted to say.

[Altra]

Dear kt315
Do you think 36c4p is diode ?
[ATTACH]57963[/ATTACH]

The 36c4p is a encrypted anti-cloning device. Minelab use these in all their new detectors. Without this device the detector will shut off.

The only way to make coils for the Equinox, Vanquish, GPZ7000 and GPX6000 is to have a licensing agreement with Minelab.

[kt315]

yup, Altra, no chance. i meant that above.

[h9361]

OK, thank you.
But 36C4P is a mystery to me.
one pin is connected to + 3.3V, another to ground, the third (data) can be an input, but there is no output, or it can be an output but there is no input!

[Altra]

OK, thank you.
But 36C4P is a mystery to me.
one pin is connected to + 3.3V, another to ground, the third (data) can be an input, but there is no output, or it can be an output but there is no input!

It's called "one wire serial communications"

Maybe this is the 36c4p?

https://www.microchip.com/en-us/product/ATsha204a

[h9361]

I tried to find its datasheet, but i couldn't.

[Altra]

https://ww1.microchip.com/downloads/...-40002025A.pdf

[h9361]

Thank you dear Altra.
Do you think E-Track also works like this?
Because the Detech company are generating Coil for E-Track.

[Altra]

Etrac is not protected