HELP?! HFMD9 Mod, and I'm stuck!
So, I've been interested in giving metal detecting a go for a very long time, but could never justify spending a bunch on a decent detector. Then I found out about the Harbor Freight 9 Function Metal Detector. I bought one, and I decided to mod it up before taking it out. The materials are really flimsy, so I wanted to do something pretty much identical to this:
http://www.treasurenet.com/forums/metal-detector-modifications/306836-12-pvc-frame-water-resistant-mod.html
The post is around 3 years old, so I don't expect a reply on it.
I'm wondering if anyone can help me out here. I gutted the HFMD9, and set it up the same way as the detector in the above. I desoldered the coil cable from the main board, as well as the useless meter. I got everything packed into the wet box, resoldered the coil cable to the board, but now, when I turn the detector on, all it does is beep, at everything, metal or not. Just holding the detector still, all it does is chirp non-stop. Is it because I did not re-solder the meter to the board? I'm pulling my hair out and I am about to give up and just junk all of it. I took a picture of the main board before I desoldered it, so all of the wires are back where they need to be. I don't see any terminal bridging from solder that could be causing a short. Do I need to bridge the "+" and "-" where the meter was wired to the board? Any help would be great! Thank you.
So, I've been interested in giving metal detecting a go for a very long time, but could never justify spending a bunch on a decent detector. Then I found out about the Harbor Freight 9 Function Metal Detector. I bought one, and I decided to mod it up before taking it out. The materials are really flimsy, so I wanted to do something pretty much identical to this:
http://www.treasurenet.com/forums/metal-detector-modifications/306836-12-pvc-frame-water-resistant-mod.html
The post is around 3 years old, so I don't expect a reply on it.
I'm wondering if anyone can help me out here. I gutted the HFMD9, and set it up the same way as the detector in the above. I desoldered the coil cable from the main board, as well as the useless meter. I got everything packed into the wet box, resoldered the coil cable to the board, but now, when I turn the detector on, all it does is beep, at everything, metal or not. Just holding the detector still, all it does is chirp non-stop. Is it because I did not re-solder the meter to the board? I'm pulling my hair out and I am about to give up and just junk all of it. I took a picture of the main board before I desoldered it, so all of the wires are back where they need to be. I don't see any terminal bridging from solder that could be causing a short. Do I need to bridge the "+" and "-" where the meter was wired to the board? Any help would be great! Thank you.
