Home Forums Product Discussion & Questions BeoGram Beogram 4002 Solenoid Engages When Power Cord Plugged In

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  • #52596
    jfrancis49
    BRONZE Member

      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

      #52597
      Dillen
      Moderator

        Shorted solenoid driver transistor?

        Martin

        #52598
        jfrancis49
        BRONZE Member

          Thanks for the suggestion Martin. Just to be clear are you referring to IC2?

          John

          #52599
          Dillen
          Moderator

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

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

            Martin

            #52600
            jfrancis49
            BRONZE Member

              Thanks Martin!

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