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Is the switch cleanable with spray contact cleaner? Or did your strong Okie hands break it?

Edited by Rimshot
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Rim it's not a switch but instead a button that you push down with your thumb.....unless your like Hoser

John then just push it with one of his five tentacle's (Octopus arms). :25r30wi: A spring under the "button" then

pushes it back up.....I had to go back to the ranch house the get my 3500 and a young guy used the 4000

for the hour I was gone....in that hour he broke the head phone cord and the bal. button.... :2mo5pow:

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:old: G ----I thought ya'al was in Brazil and NOT Mexico?? :4chsmu1: John PS-Are ya' watching BAMAZON aka rednecks n' d' jungle bungle :th: soooooooooooooooooo hilarious,playn' n' the mud, runn' around at night stumbln' over them purty coral snakes by the zillion, with them sweet ol'howlers a howln' ,what a hoot and no gold tooooo boot-they need you for help bud BAD :brows:
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Here's what Minelab repair center has to say.....I asked if the GP3500 handle would work on the GPX's....

I believe they do work interchangeably. You shouldn’t have a problem. As for parts to repair. Unfortunately the piece is a moulded handle so getting into it isn’t an option so a new one would have to be purchased.

While I was waiting for their answer I went down town to a little shop that sells sewing stuff....they must have a million little and

big buttons.....so we fished around until we found one that would just clear the sides and go down into the recess where the

former ground balance button was.....came home and put the red rubber thing down inside and used a tooth pick to seat it.....

now inside that is the white hollow shaft that is connected to the electronics below that make contact for the balance function....

Then mixed a very small amount of PC7 and put it in the hole of the red rubber and put the new button on top of that and I

pressed down slightly to get some of the PC7 up through the button holes....

Will give it a flight test tomorrow after the PC7 sets up all night....

Tomorrow the rest of the story......

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Glenn after that statement I hate to tell you'll what happened.....

Got to the site 29 km from the house.....many hills now with heavy vegation and beautiful gravel that has

been detected many times....mostly with VLF's....

Anesio took the 3500 and away he went.....I finally got all my garb on and ready.....had to cross a barbed wire

fence I parked next too....walk about another 20 feet from the PU.....raised the coil to do an noise cancel.....

saw that my newely glued black button was GONE.....along with the red rubber thing-a-ma-jig.....DANG IT....

DANG IT.....still had the little white hollow post inside the handle and it does work the balance.....

Three hours later started back tracking the 50 feet from where I noticed the button missing....put the Minelab

round DD on the ground and slowly back tracked to the PU.....found the little bugger right where I was standing

I lifted the detector off the hood....

PC7 held the button solid to the red rubber TAMJ.....so now guess it's time for some contact cement on the

little red TAMJ.....

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Back at it again today....hate to give up on something so simple....here's what the cavity under the lost

balance button looks like minus the red rubber TAMJpost-300-0-59342700-1356375260_thumb.jpgand with the red

rubber piecepost-300-0-40805200-1356375699_thumb.jpg

Here's what it looks like in the handle with the rubber hand grip offpost-300-0-70576600-1356375353_thumb.jpg

Now it's started out (easy)post-300-0-26752400-1356375511_thumb.jpgit's outpost-300-0-44643600-1356375585_thumb.jpg

Went to the hardware store and got a very small wood screw...cut it to a 1/8"....reinstalled the

red rubber thing with contact cement under it.(don't think it will stick to the red rubber)...then

filled the hole in the white post with PC7 and inserted the screw into thatpost-300-0-86038000-1356375917_thumb.jpg

Then more PC7 and put the shirt button back on top of the screw head with the PC7 coming

through the holespost-300-0-28636200-1356376075_thumb.jpg....tomorrow testpost-300-0-24692200-1356376137_thumb.jpg

If this doesn't work I'm calling Au and ask who makes the balance plug for them and try to get

an email address and maybe buy a couple of the button units.....

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Repaired part going back in the handlepost-300-0-67886300-1356456072_thumb.jpgI

tested it by hand and it seems ok...at least it didn't come apart....

Hope to give it the field test tomorrowpost-300-0-44871400-1356456180_thumb.jpgthe foam

rubber on the handle was in bad shape so I nearly tore it up getting the thing off the handle...

so for a few more trips I used some of that fantastic green Rescue tape....later I'll go to the

bicycle shop and get a handle bar grip.....they work wonders....

Spent a little time replenishing the PC7 protection on four of my favorite coils....left to right

Coiltek Joey DD....Coiltek 19" Rd DD.....Coiltek Joey mono and Minelab 11" Rd DD.....post-300-0-14978200-1356456705_thumb.jpg

since I had time between beers I put Red Rescue tape on the coil cords so their easy to

see and it gives them better stability going into the connector.....

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  • 2 weeks later...

These buttons look promising? Check out the, IDEC, Non- Illuminated push button, series A6.


These are spdt momentary switches.

More Au to you, Robert

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DIMS information...


Hope this help, I haven't taken apart or lost my yet on my GPX 5000.

More Au to you, Robert

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Robert you did a great job of finding those switches....thanks a bunch.... :thumbsupanim

The problem with replacing the entire switch assembly is getting the built in cord to work with something

new....it would nearly have to be replaced with a original type of switch unless your into building electronics...

and believe me I'm not....

Still waiting for a response from Minelab on where they source their parts from......I quit holding my breath

since I don't care for the color Blue....

I've been using these switches ever since they came out and this is the first problem I've had....I think I may

have broke the switch when one day I had the detector turned up side down and the switch was resting on the

pick-up tail gate....

Thanks again for your help....

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Don't know why they put the switches on top of handle. Put a switch on my 3500??? but in a forward (pistol trigger position), I know, white male republican approach, but I believe it's a better position. How many times when recovering a target do you bump the button? Think about it


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