Beogram 4002 Solenoid Engages When Power Cord Plugged In

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  • #29375
    jfrancis49
    SILVER Member
      • Topics Started 9
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      Hello All,

      I have a BG 4002 type 5513 that is exhibiting the following behavior. As soon as the power cord is plugged into the outlet, the solenoid engages and the arm drops. This is before Start is even pushed on the keypad. Once start is pushed, sensor arm light, 33 rpm light and tracking sensor light up and the arm (in the lowered position) continues across the platter and activates 45 rpm. It then continues to end of play and returns.

      Capacitors have all been replaced and many of the resistors and transistors. It has had a complete tear down and cleaning, so it is not a mechanical issue I believe.

      Why would the solenoid get power as soon as the table is plugged in? Any thoughts? This was a non-working turntable I bought on Ebay many years ago. I just keep thinking I can coax it back to life.

      John

      #29376
      Dillen
      Moderator
        • Topics Started 3
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        Shorted solenoid driver transistor?

        Martin

        #29416
        jfrancis49
        SILVER Member
          • Topics Started 9
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          Thanks for the suggestion Martin. Just to be clear are you referring to IC2?

          John

          #29419
          Dillen
          Moderator
            • Topics Started 3
            • Total Posts 587

            The component designation depends on the exact type of Beogram 4002.

            0TR4 in some versions.
            1IC4 in other versions.
            Etc.

            Martin

            #29420
            jfrancis49
            SILVER Member
              • Topics Started 9
              • Total Posts 40

              Thanks Martin!

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