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Fisher VLF 553D help needed.

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  • Fisher VLF 553D help needed.

    I am trying to bring back to life this old fisher VLF 553D Metal Detector. The switch at the end of the handle is snapped off, is this actually a toggle switch or a push button switch on these detectors, also is it possible to remove the rubber grip because it looks like it maybe glued on. The detector is showing no signs of life apart from the needle on the meter pegging hard left.

  • #2
    hi Gary

    glad you connected to geotechers' environment. please read my opus before to do pics
    http://www.geotech1.com/forums/showt...here-share-out

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    • #3
      Originally posted by techstar View Post
      I am trying to bring back to life this old fisher VLF 553D Metal Detector. The switch at the end of the handle is snapped off, is this actually a toggle switch or a push button switch on these detectors, also is it possible to remove the rubber grip because it looks like it maybe glued on. The detector is showing no signs of life apart from the needle on the meter pegging hard left.
      Here's the schematic for the 533.
      I could not find a User Manual for the 533, but the 552 version states that it's a push button on the end of the handle.
      Attached Files

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      • #4
        Well after a very strong pull the handle grip did eventually release , it is not glued . Looking for a switch to fit now.

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        • #5
          Have a Look See here. https://www.taydaelectronics.com/cat...?q=switch+push

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          • #6
            Thanks for the help guys , i will be reporting back here in about a week once the switch and new battery packs arrive. I am sure there is a fault or faults on the PCB though. I probably will need some advice on key test points to locate why she is not alive.

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            • #7
              Originally posted by Qiaozhi View Post
              Here's the schematic for the 533.
              I could not find a User Manual for the 533, but the 552 version states that it's a push button on the end of the handle.
              main problem a western people is uncooperative. they do not wish to share pics if i ask.
              so in this example i am not able to help by pics because i did not get the pics earlier from anybody.
              my folder '533' has only the schematic and more nothing, it is empty.
              i do not mean all people, but majority is same.
              i do not know... maybe capitalizm is so angry egoistic society that it destroy all the best features into the people.

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              • #8
                Originally posted by techstar View Post
                I am trying to bring back to life this old fisher VLF 553D Metal Detector. The switch at the end of the handle is snapped off, is this actually a toggle switch or a push button switch on these detectors, also is it possible to remove the rubber grip because it looks like it maybe glued on. The detector is showing no signs of life apart from the needle on the meter pegging hard left.
                I'm pretty sure it is a SPST toggle switch(Fisher 553D) http://detecteurmetaux2.blogspot.fr/...-d-fisher.html

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                • #9
                  Mini spst toggle switch
                  Attached Files

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                  • #10
                    I will post a photograph of the detectors internals once i have fitted the toggle switch and wired the 2 new Battery Connectors in. A transistor to replace too. The phantom dabbler has tried to fix the detector before i got this detector i get the feeling. I just hope the coil proves to be good.
                    Last edited by techstar; 03-09-2018, 08:34 AM. Reason: Mistake

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                    • #11
                      I am looking for a non working 553D for spares or a full worker if any one ever gets one please let me know.

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                      • #12
                        Originally posted by techstar View Post
                        I am looking for .............................
                        I thought you were looking for a camera.

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                        • #13
                          guys

                          i do not have pics of 553. i have only material on 555.
                          please activate your possibilities.
                          Attached Files

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                          • #14
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                            I hope these pictures are acceptable but it's the best i can do.

                            Did a few quick supply voltage checks on the chips , turns out some of the chips have the correct 9 volt supply and some are at about 0.5 volts will test more later.

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                            • #15
                              They are good photos everyone. I started selling Fisher as a dealership back in 1984. At the time they were beginning to close out the 400 series line and the 500 series lines as well. The represtentative let me know about the huge discounts on the series models, and I jumped in as I knew opportunity was there. I loved all of the models, but I especially liked the 555-D model. On the threshold they had a stacked pot, which the lower knurl tuned in the coarse adjustment, then the taller smaller knurl, turned in the fine tuning adjustment. Now they were not the X-Series machines, but I not only sold the hell out of them, the representative phoned me one day and told me "you have cleaned us out of stock, they are all gone now"!

                              Now I sold a lot, as I always told the truth. You do not have to defend the truth, but you will always have to defend a lie. I like telling the truth as people appreciate the truth and are not mad at me. I am only telling what I believe in, not accusing anyone . I love giving people good stuff. I sleep sound like a baby at night that way!
                              Melbeta

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