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Thread: 1978 Stern Stars Leds

  1. #11

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    Quote Originally Posted by Boots View Post
    No need for a new lamp board if you are a bit handy
    https://peakpinball.com/2014/01/05/m...1-led-upgrade/
    Quite an easy mod and completely invisible with the board installed ie looks original
    The other option is to add a resistor to each lamp socket
    I did this mod on my Black Pyramid and it works but I do have about 5 LEDS that occasionally do flicker but that machine is powered by a generator and never mains so that may have a bit to do with it. I want to go back and do it again only this time use 470 ohm resistor banks so the higher resistance will stop it on every LED all the time.

    I did read 470 ohm is the better value.

    I did take this mod a bit further and ran the common through an unused position in the connector, there is a couple, and ran that wire through the harness and connected it to the backbox ground rather than having a single wire just hanging waiting to get ripped out and so looking in the backbox looks factory.
    Last edited by Autosteve; 11th September 2018 at 09:40 PM.

  2. #12

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    Yeah the resistance isnít quite enough.

    I had to change a couple of scrís to eliminate flicker.
    I heard someone used 990ohm to get rid of it.
    I think these are 470ohm?

    Sockets can also be the problem.


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    The Artist Formally Known As #1

  3. #13

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    Yer sorry. 470 ohm is correct. Gotta match the arrays pin count with that of the board connector pin count, I think there are two different connector pin numbers does the whole board and also you need the arrays that have a single common rail but they are so cheap each unit. The pins on the arrays line up perfectly with the pins on the Bally boards and you end up with one vacant pin at the end of each array. This is the common pin that in the end goes to ground.

    I thought it was a pretty cool mod that cost me a couple of bucks, got the parts local, RS Spares and allowed me to re-solder all the board connector pins at the same time.

  4. #14

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    I have incandescents on my Stern Nine Ball and they are bright as, they look way better than LEDs. New rectifier board, new driver board, repinned the connectors and cleaned the lamp sockets.

  5. #15

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    Quote Originally Posted by Dedrok View Post
    For those that donít want to hack their original boards or pay more for an led lamp board
    @SPURR

    I did have one left.



    https://www.marcospecialties.com/pin...arts/MB-07-010

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    can you pm me price etc..cheers

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  6. #16

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    Quote Originally Posted by adamsebas View Post
    can you pm me price etc..cheers

    Sent from my SM-G960F using Aussie Arcade mobile app
    Yeah I still have it.



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