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Help needed Fisher 1270

S

skookum

New member
Hi,
I was out hunting early this morning with my 1270.
Got to an area where the 1270 would beep at the end of every swing in disc.
When manually ground balancing the unit in all metal I could get rid of most of the annoying sounds.
But now I had no more disc.
DOES ANYONE HAVE A SCHEMATIC OF THE 1270 ??
There are 5 white pots on the pcb (labeled 1 to 5) - DOES ANYONE KNOW WHICH POT DOES WHAT ??
There must be a way to manually ground balance the 1270 in disc. mode
I`ld hate to ban the 1270 to the closet, but I have no use for a detector that I can not control the way I want it to.
And no - it is not the coil because it did this with the 5 inch coil as well.
Thanks in advance for any positive feedback
hh
skookum
 
Don't mess with it, call Felix and send it back for repair, if it's not in warranty it's worth the price......................also make sure you give them an accurate list of the problems and have them check for the Fisher update for the 1270.
 
You say you got to an area and the problem started.
Is the problem area specific? or is this something it just started doing all at once and now it does it everywhere?

I've ran into places with detector that have pretty much all the adjustments available and could tame it down. In fact I had this happen the other night with my Coinstrike, I was night hunting in our local city park, I was up on a slope and it wouldn't pinpoint, it just went nuts. So, I thought something isn't right with this detector, but I was out so I thought I would try and work a little bit across the park on the other side and just work back towards the car. When I got to the other side the detector worked perfect, I never turned it off, I didn't reset anything?? (before I moved I did try to re-ground balance, change some settings) Something in that one area really messed with the detector.

Then I've got my own front yard??
Sometimes I can go out in the yard with any of my detectors and they all GO nuts! you can't run them at all, they false in the air, stuff in the ground gets HOT to the detector that normally is easy to disc out. I've been out in my yard and the detector running perfect, then in an instant it goes nuts??

There are areas where I can see or find any reason why the detector should have a problem, but found it to be near impossible to find something with ANY detector and I'm finding more and more of them (areas).

Though the 1200 don't have a true ground for disc mode, they run very deep in average soil. I have found them to in general be deeper than MOST every other detector I've own that had a manual ground balance. I've read somewhere that the 1200's has an "Automatic Ground Cancelation" (not and automatic ground balance)

Now, I know that with some of the 1270's there is a problem with a control housing mount being weak and with those when sent in for repairs they also claim to have had to repair some of the electronics. My big brother could give you more information about that, he had one that had to go back for service. His would air test some unreal distance on a coin, but in the field it was so sensitive you couldn't hardly move the coil with out it going off.

I'm just thinking that your problem isn't due to not being able to manually ground balance it, I'm thinking its something else.

Mark
 
Hi,
I live in Germany.
Postage to Texas and back would be high, along with the extended time frame.
I bought the thing used and don
 
skookum said:
Hi,
I live in Germany.
Postage to Texas and back would be high, along with the extended time frame.
I bought the thing used and don
Click to expand...
 
Hi,
Thanks for recommending Keith.
I`ll send him a mail.
My control housing isn
 
Repair costs will be high from Fisher.
There were several versions of the 1270 PCB.
For tuning you use the proceedure I have posted as a download on my site for the DP Wader
http://www.treasurelinx.com/detectorpro.html
Send me a PM with email address for schematics

Sven
 
Hi Sven,
Thanks a lot for the info.
I knew/had hoped that sooner or later someone would pop up with knowledge of the pcb
How do I distinguish between the different pcb s ??
Are they number coded so I can tell you which one I own ??
I could also send you a picture of the pcb as well as the serial number, if latter would help identify the units manufacturing date and pcb used.
The 1270 has 5 pots on it.
Is the pot #5 for the iron disc. setting - I believe the 1280 does not have it - not having owned a 1280 myself ??
I will send you a mail with my e-mail adress.
Thanks again for the help.
hh
skookum
 
The schematic I had was for the 1280, which you now have. Think my eyes played tricks on me and thought I read 1280.
 
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