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Ball Indicator Mask Lights.

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  • Ball Indicator Mask Lights.

    Any help would be greatly appreciated. I'm working with 8270's the particular chassis is a black omega-tek, Steltronic scoring, & U.S. Bowling Masking units. The chassis has the green Elco plug for the mask.

    I have 1 lane that the ball indictors are not working and the scoring system needs them to work for proper function.

    I have tried the following.
    1.) New bulbs
    2.) Change bulbs from a working lane in case new were bad
    3.) Try chassis from a working lane
    4.) Swap bulb sockets from a working lane

    I'm not sure what volatge I should be getting at the socket? But I did read 15.58vdc

    Anyone that could point me to links or give direction on where to start trouble shooting this would be great.

    Thanks to all who help me out in advance.

  • #2
    12 vdc....you have power....what kind of bulbs?....if they are led they are polarized....turn them around in the socket

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    • #3
      They are not the LED bulbs. This is crazy then because I do have the voltage then.

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      • #4
        The ball lights always have voltage it's the ground switching that turns them on. If none of them are working on the mask it could be a ground issue. If the wiring from the sockets to the Elco plug is good it could be the plug is not making good contact on the chassis. A lot of times the pins on the motherboard where the green plug plugs into will spread (or break off) and you lose lights. You can GENTLY close the contacts on the board where this plugs in with a small screwdriver. If between the two chassis you tried you used the same board the board could have issues. If all of this stuff works on other machine I would suspect the wiring between the sockets and the green plug.

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        • #5
          In the elco plug, the wire in #29 has 12 volts or so all the time. That feeds the mask lamps. So, a meter probe on that one to ground should have the voltage.
          Then, if there is voltage there, you can take a piece of small wire and short wire on # 24 to ground - 1st ball lamp should light.
          And short the wire on terminal # 25 should make the 2nd ball lamp light. If it does, then it's either the chassis itself, the omega tech board or the elco plug terminals. If the lamp doesn't light, it's the common power out to the mask and could be within the mask wiring making a bad connection.
          If the mask lamps get working, make sure the jumpers in the API are set to get 12 volts on 2nd ball signal. The jumper settings are on the back of the API cover.
          Now, to make your scorer work until you get it figured out, go to the 'CNT' button and uncheck the box that says 'pinsetter phased with scorer' or a radio button that says 2nd ball lamp - unfill the button and save changes. That eliminated the coordination that requires 2nd ball lamp to be lit on 2nd ball. It will score on every ball thrown, regardless of machine state.
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          This post is not an unpaid promotion of my business.

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