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

[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

[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]

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]

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]

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]

See if you can match it up with one of these.

1964
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
1965
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
1966
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
1967
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
1968
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
1969
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
1970
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
1971
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
The Hombre (BFO) 1971
1972
BFO’s (zero drift)
The Hunter
The Provider
The Hustler
The Achiever
The Sidewinder
The Playmate
The Finder
The Seeker
The Shark (underwater detector)
*BFO models: Controls on side, no push button or toggle switch at the end of handle:
*Master Hunter BFO
*Coin Hunter BFO
*Cache Hunter BFO
*Treasure Hunter BFO
*Nugget Hunter BFO
*Mini Hunter Ghostowner BFO
*Garrett Mini-Hunter BFO
1973
*BFO models: Controls on side, no push button or toggle switch at the end of handle:
*Master Hunter BFO
*Coin Hunter BFO
*Cache Hunter BFO
*Treasure Hunter BFO
*Nugget Hunter BFO
Master Hunter TR (controls on side, made with push button)
Money Hunter TR
Mini-Hunter TR
Super Mini-Hunter TR
Super Mini-Hunter BFO
1974
*BFO models: Controls on side, no push button or toggle switch at the end of handle:
*Master Hunter BFO
*Coin Hunter BFO
*Cache Hunter BFO
*Treasure Hunter BFO
*Nugget Hunter BFO
Master Hunter TR (controls on side, made with push button)
Money Hunter TR
Super Mini-Hunter TR
Super Mini-Hunter BFO
Mini-Hunter Ghostowner TR
1975
*BFO models: Controls on side, no push button or toggle switch at the end of handle:
*Master Hunter BFO
*Coin Hunter BFO
*Cache Hunter BFO
*Treasure Hunter BFO
Master Hunter TR (controls on side, made with push button)
Money Hunter TR
Relic Hunter BFO (no push button or toggle switch)
Money Hunter BFO (no push button or toggle switch)
Coin Hunter TR (TR discriminator on side with push button)
Cache Hunter TR (TR discriminator on side w/push button)
Relic Hunter TR (TR discriminator on side w/push button)
Ghostown Hunter TR (no push button)
1976
*BFO models: Controls on side, no push button or toggle switch at the end of handle:
*Master Hunter BFO
The Coin Hunter VLF/TR (controls on side, push button)
1977
*BFO models: Controls on side, no push button or toggle switch at the end of handle:
*Master Hunter BFO
*Coin Hunter BFO
Money Hunter TR: (w/push button)
Money Hunter BFO (no push button or toggle switch)
Coin Hunter TR (TR discriminator on side with push button)
The Coin Hunter VLF/TR (controls on side, push button)
The Coin Hunter VLF/TR featherweight series (controls on top, push button, groundhog on coil)
Master Hunter VLF/TR (controls on side, push button, deepseeker on coil)
Master Hunter VLF/TR featherweight series (controls on top, push button, groundhog on coil)
Fortune Hunter TR (controls on side, push button)
1978
*BFO models: Controls on side, no push button or toggle switch at the end of handle:
*Master Hunter BFO
The Coin Hunter VLF/TR (controls on side, push button)
The Coin Hunter VLF/TR featherweight series (controls on top, push button, groundhog on coil)
Master Hunter VLF/TR (controls on side, push button, deepseeker on coil)
Master Hunter VLF/TR featherweight series (controls on top, push button, groundhog on coil)
Fortune Hunter TR (controls on top, push button)
Money Hunter VLF/TR (controls on top, push button, groundhog on coil)
1979
Master Hunter ADS (VLF/TR deepseeker – control on side, toggle switch)
Coin Hunter ADS (VLF/TR deepseeker-contols on side, toggle switch)
Marksman P.B. (VLF/TR deepseeker-controls on side, push button)
Master Hunter ADS (VLF/TR Groundhog – controls on top, toggle switch)
Coin Hunter ADS (VLF/TR Groundhog-controls on top, toggle switch)
Fortune Hunter P.B.(VLF/TR Groundhog-controls on top, push button)
Money Hunter P.B. (VLF/TR Groundhog-controls on top, push button)
International TR S2 (controls on top, push button)
Treasure Hunter BFO (controls on side, no push button)
1980
Master Hunter ADS (VLF/TR deepseeker – control on side, toggle switch)
Coin Hunter ADS (VLF/TR deepseeker-contols on side, toggle switch)
Marksman P.B. (VLF/TR deepseeker-controls on side, push button)
Master Hunter ADS (VLF/TR Groundhog – controls on top, toggle switch)
Coin Hunter ADS (VLF/TR Groundhog-controls on top, toggle switch)
Fortune Hunter P.B.(VLF/TR Groundhog-controls on top, push button)
Money Hunter P.B. (VLF/TR Groundhog-controls on top, push button)
International TR S2 (controls on top, push button)
Master Hunter BFO (controls on side, no push button)
Garrett BFO (controls on side, no push button)
1981
Master Hunter ADS (VLF/TR deepseeker – control on side, toggle switch)
Marksman P.B. (VLF/TR deepseeker-controls on side, push button)
Master Hunter ADS (VLF/TR Groundhog – controls on top, toggle switch)
Fortune Hunter P.B.(VLF/TR Groundhog-controls on top, push button)
Money Hunter P.B. (VLF/TR Groundhog-controls on top, push button)
American TR S2 (controls on top, push button)
Sea Hunter
1982
Master Hunter BFO (controls on side, no push button)
Sea Hunter
Master Hunter ADS III (VLF/TR Deepseeker-controls on side, toggle switch)
Master Hunter ADS II (VLF/TR Deepseeker-controls on side, toggle switch)
Master Hunter ADS I (VLF/TR Deepseeker-controls on side, toggle switch)
Master Hunter ADS I (VLF/TR Groundhog-controls on top, toggle switch)
Gold Hunter A2B (groundhog on coil, controls on top, toggle switch)
American S4 ADS (groundhog on coil, controls on top, toggle switch)
American S3 (VLF/TR, groundhog on coil, controls on top, push button)
American TR S1 (deep scan on coil, controls on top, push button)
Pocket Scanner
1983
Sea Hunter
Master Hunter ADS III (VLF/TR Deepseeker-controls on side, toggle switch)
Master Hunter ADS II (VLF/TR Deepseeker-controls on side, toggle switch)
Master Hunter ADS I (VLF/TR Deepseeker-controls on side, toggle switch)
Master Hunter ADS I (VLF/TR Groundhog-controls on top, toggle switch)
American S4 ADS (groundhog on coil, controls on top, toggle switch)
American S3 (VLF/TR, groundhog on coil, controls on top, push button)
American TR S1 (deep scan on coil, controls on top, push button)
Pocket Scanner
1984
Sea Hunter
Master Hunter ADS 7 (controls on side, toggle switch)
Master Hunter ADS 6 (controls on side, toggle switch)
Master Hunter ADS 5 (controls on side, toggle switch)
Master Hunter ADS 4 (controls on side, toggle switch)
American AM-2 (controls on top, toggle switch)
American AM-1 (controls on top, push button)
Freedom 1 Coin Commander
Freedom 2 Coin Commander
1985
Sea Hunter
Master Hunter ADS 7 (controls on side, toggle switch)
Master Hunter ADS 6 (controls on side, toggle switch)
Master Hunter ADS 5 (controls on side, toggle switch)
Master Hunter ADS 4 (controls on side, toggle switch)
Freedom 1 Coin Commander
Freedom 2 Coin Commander
Freedom Ace Coin Commander
Gold Hunter (controls on top, toggle switch)
1986
Master Hunter ADS 7 (controls on side, toggle switch)
Master Hunter ADS 5 (controls on side, toggle switch)
American AM-2 (controls on top, toggle switch)
Freedom 1 Coin Commander
Freedom 2 Coin Commander
Freedom Ace Coin Commander
Gold Hunter (controls on top, toggle switch)
Beach Hunter AT3
Sea Hunter XL 500 Pulse
Sea Hunter XL 200 Pulse
1988
Master Hunter ADS 5 (controls on side, toggle switch)
Sea Hunter XL 500 Pulse
Grand Master Hunter
Freedom 3 CDC
Freedom 1 CDC
Beach Hunter AT4
Gold Hunter A3B
1989
Master Hunter ADS 7 (controls on side, toggle switch)
Master Hunter ADS 5 (controls on side, toggle switch)
Sea Hunter XL 500 Pulse
Freedom 3 CDC
Beach Hunter AT4
Gold Hunter A3B
Grand Master Hunter II
Freedom 3
Freedom 1
1990
Sea Hunter XL 500 Pulse
Beach Hunter AT4
Grand Master Hunter CX II
Master Hunter CX
Master Hunter 7X
Freedom 3 Plus
Freedom 2 Plus
Freedom Ace Plus
Scorpion Gold Stinger
1991
Sea Hunter XL 500 Pulse
Beach Hunter AT4
Grand Master Hunter CX II
Master Hunter CX
Master Hunter 7X
Freedom 2 Plus
Freedom Ace Plus
Scorpion Gold Stinger
Ultra GTA 1000
Ultra GTA 500
Pocket Probe
1992
Sea Hunter XL 500 Pulse
Grand Master Hunter CX II
Master Hunter CX
Freedom 2 Plus
Freedom Ace Plus
Scorpion Gold Stinger
Ultra GTA 1000
Ultra GTA 500
Master Hunter CX III
1993
Sea Hunter XL 500 Pulse
Grand Master Hunter CX II
Master Hunter CX
Freedom 2 Plus
Freedom Ace Plus
Scorpion Gold Stinger
Ultra GTA 1000
Ultra GTA 500
Master Hunter CX III
1994
Sea Hunter XL 500 Pulse
Grand Master Hunter CX II
Master Hunter CX
Ultra GTA 350
Freedom Ace Plus
Scorpion Gold Stinger
Ultra GTA 1000
Ultra GTA 500
Master Hunter CX III
1995
Sea Hunter XL 500 Pulse
Grand Master Hunter CX II
Master Hunter CX
Ultra GTA 350
Freedom Ace Plus
Scorpion Gold Stinger
Ultra GTA 1000
Ultra GTA 500
Master Hunter CX III
1996
Sea Hunter XL 500 Pulse
Grand Master Hunter CX II
Master Hunter CX
Freedom 2 Plus
Scorpion Gold Stinger
Master Hunter CX III
GTAX 1000
GTAX 500
GTAX 400
1997
Sea Hunter XL 500 Pulse
Grand Master Hunter CX II
Master Hunter CX
Freedom 2 Plus
Scorpion Gold Stinger
Master Hunter CX III
GTAX 1000
GTAX 500
GTAX 400
GTI 2000
Treasure Ace 100
Treasure Ace 200
Treasure Ace 300
1998
Sea Hunter XL 500 Pulse
Master Hunter CX
Scorpion Gold Stinger
Master Hunter CX III
GTAX 1000
GTAX 500
GTAX 400
GTI 2000
Treasure Ace 100
Treasure Ace 200
Treasure Ace 300
GTI 1500
Pocket Probe
1999
Scorpion Gold Stinger
Master Hunter CX
Master Hunter CX III
GTAX 400
Treasure Ace 100
Treasure Ace 200
Treasure Ace 300
GTI 1500
Pocket Probe
GTI 2500
GTAX 550
GTAX 1250
GTAX 750
Sea Hunter Mark II
2000
Master Hunter CX Plus
Scorpion Gold Stinger
Master Hunter CX III
GTAX 400
Treasure Ace 100
Treasure Ace 200
Treasure Ace 300
GTI 1500
Pocket Probe
GTI 2500
GTAX 550
GTAX 1250
GTAX 750
Sea Hunter Mark II
2001
Master Hunter CX Plus
Scorpion Gold Stinger
GTAX 400
Treasure Ace 100
Treasure Ace 200
Treasure Ace 300
GTI 1500
GTI 2500
GTAX 550
GTAX 1250
GTAX 750
Sea Hunter Mark II
2002
Master Hunter CX Plus
Scorpion Gold Stinger
GTAX 400
Treasure Ace 100
Treasure Ace 300
GTI 1500
GTI 2500
GTAX 550
GTAX 1250
GTAX 750
Sea Hunter Mark II
2003
Master Hunter CX Plus
Scorpion Gold Stinger
GTAX 400
Treasure Ace 100
Treasure Ace 200
Treasure Ace 300
GTI 1500
GTI 2500
GTAX 550
GTAX 1250
GTAX 750
Sea Hunter Mark II
2004
Master Hunter CX Plus
Scorpion Gold Stinger
GTAX 400
Treasure Ace 100
Treasure Ace 300
GTI 1500
GTI 2500
GTAX 550
GTAX 1250
Sea Hunter Mark II
Infinium LS
GTP 1350
2005
Master Hunter CX Plus
Scorpion Gold Stinger
GTI 1500
GTI 2500
GTAX 550
Sea Hunter Mark II
Infinium LS
GTP 1350
Ace 150
Ace 250
2006
Master Hunter CX Plus
Scorpion Gold Stinger
GTI 1500
GTI 2500
GTAX 550
Sea Hunter Mark II
Infinium LS
GTP 1350

[Gold dredger]

Ok here is the pics This is the Master Hunter ADS deepseeker model.

[homefire]

Cool looks like the first long box ADS after the Ground hog .

Let me see if I can find a schematic that would be close.

Garrett was tight lipped on schematics but there are a few out there that could be close enough to work with.

What do you have for test equipment?

Test Audio Amp would be good.

This could be as simple as a bad speaker.

They had the speaker on top and if it got wet, it could do what you state.

Do the head phones work?

[Gold dredger]

No the headphones do not work either. It makes the same sound in the headphones as it does out the speaker. I have the basics for tools. I have a nice digital volt ohm meter. Nice soldering equipment.

Thanks again for giving me a hand with this.

[Gold dredger]

I also tried unplugging the main speaker and running just the headphones but still got the same results. So I think it is in one of the components on the board.

[homefire]

This one may be close.

[homefire]

You said the meter is responding just the audio is funky?

[Gold dredger]

Meter is responding perfect and the detector has good depth as well. It is just the audio that has the problem. No threshhold hum and weird chirp and thump on targets.

[homefire]

Starting at the Audio Pot, Volume check the ac voltage from the center pole on the Pot to Ground.

A chopped up head phone would work for this.

Does it sound the same?

[Gold dredger]

I will try I will be a bit I will make a chopped head phone to test it.