(Topic ID: 256965)

Williams System 11A

By DeLongdium

4 years ago


Topic Heartbeat

Topic Stats

You

Linked Games

No games have been linked to this topic.

    Topic Gallery

    View topic image gallery

    IMG_20191206_081248 (resized).jpg
    IMG_20191206_081218 (resized).jpg
    #1 4 years ago

    Picked up my first pinball a Williams Millionaire. Had its fair share of issues but the only thing I cant figure out why the Left Flipper is not getting any power. The solenoid and the switch are not getting any power at all and I am stuck and don't know what to do. Any help would be awesome. I apologize ahead of time if I ask any stupid questions or don't know what something is, like I said this is my first pinball and I am very new to this hobby.

    #2 4 years ago

    Have you checked the flipper fuses?

    #3 4 years ago
    Quoted from Pinhead306:

    Have you checked the flipper fuses?

    Every fuse in the machine is good and also the correct fuse.

    #4 4 years ago
    Quoted from DeLongdium:

    Every fuse in the machine is good and also the correct fuse.

    Good? Did you remove the fuse and buzz it with a meter?

    Chris Hibler - CARGPB #31
    Http://chrishiblerpinball.com/contact
    http://www.PinWiki.com/ - The new place for pinball repair info

    #5 4 years ago
    Quoted from ChrisHibler:

    Good? Did you remove the fuse and buzz it with a meter?

    Chris Hibler - CARGPB #31
    Http://chrishiblerpinball.com/contact
    http://www.PinWiki.com/ - The new place for pinball repair info

    Yes i took all of them out when I tested them.

    #6 4 years ago

    There is only one fuse for both flippers, so if one works the fuse is good. There is a board called the flipper power supply in the lower right side of the back box. Remove this board and post a good pic of both sides of the board.

    #7 4 years ago
    Quoted from GRUMPY:

    There is only one fuse for both flippers, so if one works the fuse is good. There is a board called the flipper power supply in the lower right side of the back box. Remove this board and post a good pic of both sides of the board.

    When i first got the machine neither of the flippers where working. I replaced the diode on the flipper power supply and i got both of the right flippers working that way.

    IMG_20191206_081218 (resized).jpgIMG_20191206_081218 (resized).jpgIMG_20191206_081248 (resized).jpgIMG_20191206_081248 (resized).jpg
    #8 4 years ago

    Well most of the time there is some cracked header pins on the board causing a bad connection. I don't see any from the pics. There is a molex connector that connects the output of this board to the play field, check to see if it is fully mated. It will be hanging just below the back box.

    #9 4 years ago
    Quoted from GRUMPY:

    Well most of the time there is some cracked header pins on the board causing a bad connection. I don't see any from the pics. There is a molex connector that connects the output of this board to the play field, check to see if it is fully mated. It will be hanging just below the back box.

    The connector was connected. I double checked using my meter. The left post of the coil leads up to the top right pin on the board.

    #10 4 years ago

    Broken wire at the flipper button switch? Broken wire at EOS switch or flipper coil? Bad EOS switch?

    #11 4 years ago

    You will have to use a voltmeter and check the output of the flipper power supply, then at the molex connector and along the wire until you find a break in the wire.

    #12 4 years ago
    Quoted from PinballManiac40:

    Broken wire at the flipper button switch? Broken wire at EOS switch or flipper coil? Bad EOS switch?

    I tested all of the switches and they are all working fine. Tested the continuity for the switches and they where working just fine with 0.01 resistance according to my meter. I also know the coil is fine because i tested it by switching the left and right ones out

    #13 4 years ago
    Quoted from GRUMPY:

    You will have to use a voltmeter and check the output of the flipper power supply, then at the molex connector and along the wire until you find a break in the wire.

    What should be the output voltage?

    #14 4 years ago
    Quoted from DeLongdium:

    What should be the output voltage?

    @ 65 volts DC.

    #15 4 years ago
    Quoted from GRUMPY:

    @ 65 volts DC.

    Reading 0

    #16 4 years ago

    The picture of the board back was a bit fuzzy, but I'd still reflow the solder joints at the headers. Single sided boards like this are subject to fractured solder joints.
    --
    Chris Hibler - CARGPB #31
    http://ChrisHiblerPinball.com/contact
    http://www.PinWiki.com - The Place to go for Pinball Repair Info

    #17 4 years ago
    Quoted from ChrisHibler:

    The picture of the board back was a bit fuzzy, but I'd still reflow the solder joints at the headers. Single sided boards like this are subject to fractured solder joints.
    --
    Chris Hibler - CARGPB #31
    http://ChrisHiblerPinball.com/contact
    http://www.PinWiki.com - The Place to go for Pinball Repair Info

    I ended up re-flowing every joint on the board just to be sure. It did not work. Just to make sure it was not the switch I also switched the switches and I a having the same result.

    #18 4 years ago

    UPDATE: So I ended up fixing it. The problem was that diode I "replaced". On the board itself it clearly is labeled as D1 which if you look in the parts list of the manual its a Diode 1N4001 which is what i replaced. I looked further into the schematic of the board and realized it was labeled as W1 0 OHM Resistor in the paperwork. I added just that and now both of the flippers work just fine. Not sure why the board itself and the paperwork both say 2 different things but now I know to look at both from now on if I have any future issues. Thank you to everyone who tried to help me i really do appreciate it and I hope this helps any others with this issue.

    Reply

    Wanna join the discussion? Please sign in to reply to this topic.

    Hey there! Welcome to Pinside!

    Donate to Pinside

    Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!


    This page was printed from https://pinside.com/pinball/forum/topic/williams-system-11a-1?hl=pinhead306 and we tried optimising it for printing. Some page elements may have been deliberately hidden.

    Scan the QR code on the left to jump to the URL this document was printed from.