No sound from the surf PI 1.2 kit

[Hihacks]

Hi everyone,
To begin with sorry for my English, I'm french.
I just bought a surf PI 1.2 kit from silverdog, I made all the board and built a coil (24 turns, 20 cm diameter, 0.5 mm isolated cooper wire).
The problem is when I power the circuit, no sound comes from the piezo but a little sound comes from the coil.
On top of that, I saw that the 390 ohm resistor next to the MOSFET is heating.
When I unplug the coil, The sound stop and the resistor doesn't heat anymore (but no sound from the piezo).


If anyone knows what I did wrong it would help me a lot.
In fact I'm doing this project because I'm new in the metal detecting world and I'm interested in this hobby.
If I success I would like to make a video about that in my youtube channel "Hihacks".


Thanks a lot for your help !
Here are some pictures of my circuit :

https://drive.google.com/open?id=0B4...2lBbjFqaTluS00
https://drive.google.com/open?id=0B4...zJhb0FqOVFFSDg
https://drive.google.com/open?id=0B4...0lWNHdES3JMS0U
https://drive.google.com/open?id=0B4...VJyY2sxUmE5eFk
https://drive.google.com/open?id=0B4...VVaeXFXaGYzQ0E
https://drive.google.com/open?id=0B4...HVTUlBJT3UtTHc
https://drive.google.com/open?id=0B4...G5YekYtZy1PbzQ
https://drive.google.com/open?id=0B4...W0yZVhudEpSeE0
https://drive.google.com/open?id=0B4...WJDY09uaTZ1R2c

[chemelec]

Your Picture of the Board is Too Small to see any Details of the parts on it.

Where do you Live?

[Hihacks]

Thants for your reply,
I just solved my problem.
In fact The seller sent me wrong resistors, It was written 100k but they were 1K so I had too much 1k resistors and no 100K ones.
Now it's finally working (I had some 100K resistors in my workshop and I changed).
However I thing the circuit is a bit damaged...