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my F75 wont

J

johnny nj

New member
pick up a quarter in disc mode factory preset, It also wont run stable in any mode and JE mode it still acts crazy with the sens even at 1. I think the coil is bad, even in factory preset its hard to tell a good signal from all the noise,also it wont fastgrab.This really $u(!< 's because I have 2 weeks off work and cant use my new detector. If anyone has any tips to help me out i'd really appreciate it. Thanks HH johnnynj
 
Hi Thanks for the tips. I have tried everything from resetting to factory preset, changed batts, checked coil connection, But nothing seems to make it any better. I wont give up, it sounds like alot of people are making some great finds with there 75. If it is defective then i'll just bite my tounge and wait to get it fixed, Its just that my good friend has a site that he went to today and found some IH's and an 18?? seated dime and some old buttons and i'm supposed to go with him tommarrow . I got 2 weeks off work and and the weather is still detectable here, I just want to get out detecting as much as possible before cabin fever sets in "lol" . Thanks for the help Johnnynj
 
Where are you testing your F75? If you're inside your house go outside away from any power lines and try it there. If that doesn't help and you don't think your neighborhood has any sources of interference, tie up your friend, "borrow" his detector and head for that site by yourself tomorrow. Good luck, I hope it's not your coil.
 
If your bud has a F75, try his coil on yours, or take it back to the dealer for a swap...................
 
ABSOLUTELY AWSOME...... I went to that site with my friend he couldent stay long and he left me with his detector and I had one of the best days in awhile, First coin out of the ground was an 1803 large cent followed by 3 buttons an old wornout colonial copper and a 178? reale... I broke my oldest coin find record twice today, Before today my oldest coins were 2 1832 halfdimes also found at that site. I cant wait to get my F75 fixed and see how it can do at this site. What a way to end 2007. HH johnny nj
 
Johnny:

Interesting; mine started acting up today also. Had been working perfect. Did the reset thing but no go. Didn't seem to want to GB by Fastgrab or manual. Wouldn't pick up a quarter, dime or penny on the surface but would pick up a nickle and had VDI number in the 60's. Took it outside to see if it would straighten out but no go. Came back in and changed to the small coil. Worked perfect indoors and out. Had planned to open up the connector to see if there were any solder bridges but the Phillips screwdriver I was trying to use won't cut it. Don't know if you've ever looked inside one of those connectors but the solder joints are real close together. Anyway, I decided to put the large coil back on, making sure it was snug and well seated, it started working correctly again. Sometimes I wonder about coiling the cable around the shaft because in amplifier circuits, sometimes a coil can act as an RF choke. These coil wires seem to be well shielded, so probably not. Wonder if there's only wiring in the coil or if there are other electronic components that might be affected by magnetism or static electricity? Large coil had been laying next to a large shovel blade and wonder if there could have been some sort of inductive coupling. Anyway, it's working again.

Ron
 
...I posted thinking you hadn't been detecting with your F75 yet.
 
I was about to buy an F 75. Sold three detectors to get one. Then I read several times IF you get a good one . That big word IF scared me off. I bought an Exterra 70 instead.....Jack
 
Luckily, I got a good F75 (knock on wood). Best detector I've owned. I have the XT50 (also a great detector IMO), but want to try the XT70 someday. I suppose you know about the FAQFAQ on the X-terra forum, but in case you don't, check it out - tons of good info.
 
I don't believe there's anything wrong with my F75 nor the large coil. I'm thinking it might have something to do with cranking it up while in the house. After switching coils back and forth, maybe it sort of reset itself. Considering that it worked perfect out of the box and that it's working perfect now, I'm thinking that I may have had a temporary short between the headphones.

Ron
 
not as fast as the f75 and t-2, but i tryed my buddys and liked it, i cant stand slow responce times. thompy
 
[quote BobH]Luckily, I got a good F75 (knock on wood). Best detector I've owned. I have the XT50 (also a great detector IMO), but want to try the XT70 someday. I suppose you know about the FAQFAQ on the X-terra forum, but in case you don't, check it out - tons of good info.[/quote]
You like the 75 better then your EX?
 
...Yes!

However, If all my detectors except the XT50 were stolen, I'd still be out there having fun and finding lots of goodies.
 
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