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  • Chassis Problem

    I have a solid state chassis single board conversion elco plug. The problem is it keeps tripping CB switch on back control panel.You can hear switch humming. I know it is in the chassis because it is a spare I am working on. Here is what I have done so far. Changed board , M & M2 relays, T2 transformer, checked all pins in C2A and C1 plugs. Any other suggestions. [img]/content/btubb/images/%%GRAEMLIN_URL%%/confused.gif[/img]
    David Cliffe
    Asst. Mgr.
    Mechanic
    Youth Advisor
    Pro Shop Mgr.

  • #2
    Re: Chassis Problem

    Heat sink assy.

    Thermal OL (?)

    H relay (?)

    T1 transformer (?)

    Can you tell what's humming before it trips out?

    Does it trip out if control box motor switches are in the 'off' position?

    Check where all the wires are soldered onto the motherboard to make sure none of them are touching their neighbor.

    Comment


    • #3
      Re: Chassis Problem

      besure you have the right relays in the chassis if you put a wrong relay in the M relay spot it usually does that.pull the relays out of another chassis to rule this out...also besure you dont have a wire loose maybe arching on metal cause a ground out..
      DEFINITION OF MANAGER IN THE 21ST CENTURY: (ADULT BABYSITTER)

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      • #4
        Re: Chassis Problem

        Had a similar problem when I was rebuilding old chassis for spares. Was blowing the CB on the control panel, it was a bad diode under one of the capacitors in the chassis (which are bypassed anyway by the MK-70's) I believe it was CP3. Just cut it off and it was good to go. If ya do a search for SS chassis rebuilds I'm sure ya can find the thread. Good luck!
        All I want in life is to turn wrenches and climb around pinsetters/pinspotters again :/

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        • #5
          Re: Chassis Problem

          I have seen the KX relay cause this. It's a bi**ch to remove, but it can cause that problem too.
          I've had enough of hope & chains.

          Comment


          • #6
            Re: Chassis Problem

            Thanks for the quick replys I will try them and see what I find. When I do I will post what fixed the problem.
            David Cliffe
            Asst. Mgr.
            Mechanic
            Youth Advisor
            Pro Shop Mgr.

            Comment


            • #7
              Re: Chassis Problem

              Rep, had it right it was the diode on the CP3 capacitor. Thats the slim black one. Thanks for the help.
              David Cliffe
              Asst. Mgr.
              Mechanic
              Youth Advisor
              Pro Shop Mgr.

              Comment


              • #8
                Re: Chassis Problem

                k, i have a question for wb, dutch, and anyone else that can tell me. with omega teks, which is all ive ever known, i can just rip out the little aux board, and the Cap 3, just rip'm out with no adverse affects?? what else can be removed from the SS's i can just rip'm out wiring and all right?? lmao, just triple checking with ya before i "let the smoke out" of the chassis.

                Comment


                • #9
                  Re: Chassis Problem

                  Hey! I got one right [img]/content/btubb/images/%%GRAEMLIN_URL%%/wink.gif[/img] [img]/content/btubb/images/%%GRAEMLIN_URL%%/laugh.gif[/img]
                  All I want in life is to turn wrenches and climb around pinsetters/pinspotters again :/

                  Comment


                  • #10
                    Re: Chassis Problem

                    Coors,

                    I have all the aux boards removed. I cut the wires off where they go into the motherboard on most of them but desoldered them on a few.

                    As for the capacitors, I haven't taken any of mine out yet but I understand that you can remove all 3. I had planned on disconnecting them 1 at a time to test the theory but I've had a lot on my plate lately & haven't had a chance to try it.

                    Comment


                    • #11
                      Re: Chassis Problem

                      today i finally got the nerve to remove Cap 1 & Cap 3. works like a charm. my only question is, will it affect the expander board operation in the future? i noticed Cap 2 has a wire goin to the 12V lug, which PC3 uses, so i didnt remove it., is it safe to remove it and still have expanders work? ( i dont have expanders here. . . . yet)

                      Comment

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