Black Knight
Williams, 1980Hey guys I just got home from working at the bar. I'll take everything off Sunday and put up some close detailed pictures using real camera instead of just iPhone. Buddy who replaced my battery on Mario repairs hospital equipment for his day job and said he would help me with the soldering since he has a real nice setup. Again truly appreciate the help, and patience as people help others to learn the hobby.
Uploaded pictures to photobucket in a few highlighted a chip and socket that do not appear original and look to have questionable solder joints. Anyone who has the time to check them out and let me know what you think please do. For the most part they looked ok to me, with some I believe oxidation on another part. Thanks.
Ok so did some testing on the game tonight....replaced f2 fuse. Started game and played, fuse blew within first couple minutes, usually first or second ball each time. I was trying to see if it was a particular solenoid or action causing it to blow. Finally just took the ball and used it with my hand rolling to test everything..fired as many as I could as fast as I could and couldn't get it to blow. Finally had my friend play while I watched the fuse. It blows when flippers are being used only....does this help anyone diagnose anything?
Boards are on the bench right now, and as expected it was mostly the 40pin. Typical short-ground backside on the CPU board in this case. Couple blown TIP120's on top of that.
-Hans
Hans got boards this evening. Hooked up and started a game. A bit into it the bell is going off and won't stop ringing. When is happened my magnets are also becoming active and locked on....Amy idea what's going on?
Agreed, I'd like to know whatever happened to the game!
Well, boydsc331, it looks like you're going to be have the pleasure of reflowing the solder on the 40 pin connectors! 
Sounds like that was one of the primary culprits besides a couple transistors etc...
looks like youre right frunch about the 40 pin but what really scares me is what happens when i do get it up and running ? will the black knight come to life and lance me ???? heres another one im dying to know the ending to.
http://pinside.com/pinball/forum/topic/project-black-knight-buy-or-pass
what happened ? 2 years and no update ???????????
Well, I can tell you from personal experience that the Knight will kick your ass--and taunt you while he's at it! 
He's well-despised in my house! Let us know if you have any success after reflowing the 40-pin connector!
I hear ya though, it's always disappointing to read an interesting thread, just to get no conclusion...
Sorry, sent board out for repair, had a few blown transistors I believe is what the problem was, played the game for a few more months but since there is one at the local arcade and I found something else I wanted more I sold it, I believe for $700, maybe $750 and then I also sold the CPR playfield that I had acquired separately since the new owner wasn't interested that went to Kruzman who was going to fix the mistakes and get it looking great, not sure where it stands now though because I know he has been super busy and backed up on work.
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Lake Forest, CA