Garrett A.D.S. VLF/TR deepseeker with bad sound output???

[Gold dredger]

Ok I can post a picture for sure. Give me just awhile here and I will get one taken and up. Hey thanks for the help. It is a cool old detector and we would like to see it work.

[homefire]

Can you post a photo of it?

I have one of the older ones but there was a pile of varients made.

If it is not the ADS deep seeker it's real old.

There is a schematic for it here some place I think.

[Gold dredger]

Hi,
I checked the voltage across the whole battery assembly and it is great. No corrosion. I have good voltage at the board as well. It is trying to make the tones when you run a target past like a say the chirp and the thump. But no threshold at all and the tones are short soft almost not there. I have 3 coils so I tried all three to see if there was any change and it works the same with all three.

[homefire]

Two of the Six batteries are for the audio.

All I can think of is maybe corroded contacts?

Are you gitting good power from the battery carrier?

[Gold dredger]

I just picked up an old Garret ADS deepseeker VLF/TR detector. It turns on and the analog meter works when detecting a target just fine. However the sound output from the speaker and the headphone output is not working correct. It will make a thump sound and slight chirp when scanning targets but I cant get a threshhold hum and a good sound from it. The thump is very low sound and the chirp is low also. I pulled the board and see no visable signs of burnt parts and no burnt or cut circuits on the board. No loose wires. When we first got it it was not putting out any sound now that we have been playing around with it we have the mild thump and chirp. It has a full load of brand new battery's.

Do you guys have any ideas? The circuits look very simple.

Thanks for any help.

Jason