Williams Black Knight (Williams, 1980) Starting

John45uk

Inserted Coin
Joined
Apr 26, 2015
Messages
2
Reaction score
0
Points
2
Favorite Pinball Machine
Black Knight
Hi all! I`m new to this forum and need your help! I acquired a Black Knight pinball a few months back which worked reasonably ok the only issue was both magna saves wouldn't magnetize the ball after pressing the capture buttons (still need to fix it) but I have an even bigger issue now. When I power up the game, everything lights up and drop targets are up but i can't credit the game after touching the contacts in the coin box!(Tried cleaning contacts) I think the start button also was not starting the game the last time I did manage to credit up the game. Could this be a fuse or wiring issue or maybe a board issue? I noticed the fuses in the game were the wrong type and changed about 5 of them to the recommended voltages in the manual before the game went down. Any help would be much appreciated!!! I am a newbie on pinballs repairs and hope to get this machine fully restored and clean one day :)

P.S I have put back the original fuses and it is still down

John
 
i think you have a board issue. both the magna save issue and the credit switches/ start button issue use 2j2 on the driver board pins 8 and 9. both of these pins are controlled by IC17 (SN7406). replacing this chip might solve both of the issues.
 
Hi! Thanks for the info! (Much appreciated!)The issue i had with both magna saves on the Black Knight was although they both lit up and the solenoids fired it just didn't magnetize the ball! I read somewhere that there is a ground wire that needs to connected for the magnets to work? I think the wire was orange and black (not sure about that). When the game was delivered to me, the guy who sold it to me dismantled the back cabinet/casing for transport then reconnected it

Thanks again for the info you already sent! :)
 
General chit-chat
Help Users
You can interact with the ChatGPT Bot in any Chat Room and there is a dedicated room. The command is /ai followed by a space and then your ? or inquiry.
ie: /ai What is a EM Pinball Machine?
  • No one is chatting at the moment.
  • Chat Bot Mibs Chat Bot Mibs:
    maxangelo19 has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Dragonslapper has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    royaljet has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Tyfox has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Goldtopboy has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    slick267 has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    dabreeze has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Spike has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Tofa has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Atropine has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    bongo2k5 has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Bouly has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Felipefx3 has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    djrbx has left the room.
  • F @ freebird1963:
    were do music and sound files go
    Quote
  • Chat Bot Mibs Chat Bot Mibs:
    jhbradley has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Conejazo has left the room.
  • Chat Bot Mibs Chat Bot Mibs:
    Sedulous has left the room.
      Chat Bot Mibs Chat Bot Mibs: Sedulous has left the room.
      Back
      Top