felezjoo PI(the best pulse induction metal detector that I made until now)

[basellafe]

Without ic or coil connected felezjoo will be error coil thats normal try to change frequency if still error coil change the ic

[kostask]

i change the ic , i change frequency and all settings many test i have made. I start beleve i have problem in the pcb.

[Kostasp]

Ihave change ic with other two i have change frequency and all settings many test allways coil error. if you can see anything in photo tell me what to do?

[gurdal]

Hi
BS 170;lf357;tantalum capasitör check it.

[gurdal]

hex version ?fuse settings are fine?

[basellafe]

Change the bs170 most error coil from bs170 its a week peice and can burn when soldering many time i have this problem

[Kostasp]

ok thanks i look and i will tell you hex is 3.35 and like the photo ok in hex

[Kostasp]

hi today i change bs170,lf357n,atmega, bc337 but i have the same: error coil
i thinking to change cable of felezjoo to coil is a cable of microfon low lose wih shield

[Kostasp]

hi, what volt i must have in the out for the coil

[basellafe]

12Volt in the coil and 9.50on the op amp

[Kostasp]

In the coil I have 0v the lf I have change

[ricalbertvig]

I had the same problem of coil error ... change components, I made the plate again, in the end I left this project, of all those that I have done, this is the only one that did not work for me because of the error problem coil

[gurdal]

1-detach the coil
2-felezjo pi run
3-sens 7 do
4-felez close open
5-coil after plug
6-What are the consequences?

[Kostasp]

Nothing errors coil but rhe sens is always 17 I cant change it in lcd says S17 I have hex 3.35

[karim1980]

hi today i change bs170,lf357n,atmega, bc337 but i have the same: error coil
i thinking to change cable of felezjoo to coil is a cable of microfon low lose wih shield

Put a picture of the board up and down