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Whites 6000Di Pro

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  • #1

    Whites 6000Di Pro

    Hello.
    A friend gave me a detector 6000Di pro for repairing. He adjusted all trimmers so i must readjust it.
    So i must know who must be the voltage at output of switching regulator. Now i read 18V at C83, but C83 has max voltage 16V.
    Maybe Carl remember it....

    Regards
    Tags: None
  • #2
    Nobody?????

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    • #3
      After searching GOOGLE for keyword "Whites 6000 Di Pro schematic"

      I have found patent US4783630 with pictures of schematic. One picture has a power supply schematic with voltages.
      --------
      An illustrative embodiment of a metal detector of the described type having the automatic ground exclusion balance (AGEB) feature of the present invention is currently manufactured and marketed by applicant's assignee, White's Electronics, Inc., of Sweet Home, Oreg., under the model name and trademark COINMASTER 6000/Di Professional (hereinafter referred to as the "6000/Di Pro")
      --------
      US4783630A - Metal detector with circuits for automatically screening out the effects of offset and mineralized ground - Google Patents
      http://www.google.com/patents/US4783630
      A portable transmit/receive induction balance type metal detector having an automatic ground exclusion balance (GEB) feature to facilitate the screening out of the effects of mineralized ground. The circuitry provides a static GEB in a single try and then, if selected by the user, continual automatic GEB on a dynamic basis as the system is used. The circuit includes a pair of quadrature phase detectors, one of whose outputs is approximately in phase with the ground component of the loop return signal. That output is modified, during an air balance of the detector, to remove the residual offsets in the circuit. This modified output in turn is summed with the other phase detector output to produce a phase detection signal that can be adjusted by automatic means to be precisely in quadrature with the ground component of the loop return signal. A controller is provided, with selectable user inputs, to initiate the static and dynamic GEB operations. An error amplifier in conjunction with two sample/hold elements and a variable duty cycle chopper operate in a feedback loop to appropriately adjust the phase detection signal. Audible beep indications are generated to signal the user when the steps in the automatic GEB are completed.


      We will learn to use Google soon.

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      • #4
        Hello.
        Thanks for info.
        I have the original schematic by Whites and don't writes anything about the voltage. So i did not search for any other schematic.

        Regards

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