Heating of U5 in surf1.2

[SKIPI]

Hi ,
I am new here and it is a pleasure being part of this forum.
Nearly 2 years ago I bought a surf 1.2 from silverdog.
It was already done by silverdog I had just to make the coil and piwer supply.
For same resons I just couldnt get it working back then.
Now I started again and noticed the buzzer had burned out, I replaced it.
But than the U 5 was to hot to touch and measured 0 V in its output. I repaced it
And the same problem ocured, it burned out again. 0 V in its output. To hot to touch.
My coil has 1.7 ohm I use a 12 volt battery. Please help!
Thank you in advance.

[kt315]

what schematic you use? link?

[SKIPI]

Hi

I followed the instructions from http://www.adrianandgenese.com/blogger.

[SKIPI]

One of the processors is removed in the above photo, becouse for a moment I thought that smoke was coming out of it, but it semes OK .

[homefire]

Your Link went side ways. Did you mean this one ? http://www.adrianandgenese.com/blogger/2012/07/13/how-to-build-a-surf-pi-1-2-pulse-induction-metal-detector-from-a-diy-kit/

[kt315]

Hi
[ATTACH]40325[/ATTACH][ATTACH]40326[/ATTACH]
I followed the instructions from http://www.adrianandgenese.com/blogger.

pls read this before to do anything. http://www.geotech1.com/forums/showt...here-share-out
simplest rules eeh? your pic is darkness and i do not see nothing (((((((

[SKIPI]

Hi homefire, yes that is exactly the site from which I got the schematic.
I ordered the board already done by Silverdog , so I thought it will be a piece of cake for me.
I took same photos kt 315, my phone has a bad camera, hope you could be able to help: