I spent a lot of time on this machine, and I feel like posting about it. Kinda proud that I managed to get everything fixed. Someone is getting a massive deal. LOL
EPISODE 11: NIP-IT
OK. So, like most old EMs I have, nothing was ever adjusted. In this case, a whole bunch of craziness was happening intermittently:
- Game didn't tally the bonus
- Zipper flippers wouldn't stay closed
- Bonus count would go on forever
- score motor would not stop
Let us go over one by one, shall we?
First issue: ZIPPER FLIPPERS NEVER STAYED CLOSED
This is what I tinkered on first... after looking at the schematics incessively, I found....
: Ball index relay and Player Up switch on stepper unit in head were improperly adjusted, bad gaps
Yeah... This ended up also affecting the ball count. When the bug was present, the game acted as if I never hit anything, and just kicked out the ball. Also, the zipper flippers use the ball index relay.
: I adjusted the switches and it was better... but not 100%
OK... Still goofing off... weird intermittent issues.
Second issue: GAME IS ON CRACK
Well, here is the sucky part of old EMs... chances are that no one has touched any switch stacks since 1972. So, I removed the playfield, pulled out the relay panel and went to town. And just on the first screw of the first relay, I knew I hit paydirt.
: ALL switch stacks are loose
So... 4 hours later:
: I had tightened every single switch stack and adjusted every single switch.
I also took the opportunity to clean the score reels. Can't hurt...
I will win, you bastard!!! ... or so I thought....
Third issue: BONUS COUNT NEVER STOPS IF BONUS IS BETWEEN 6000 AND 10000 PTS
FAAAAAAAAAAAAAAAAAAAAAK. This was a TOUGH one. Another 2 hours of going through the schematics and Learning the logic. Essentially, the way it works is that from 1000 to 5000, the bonus system uses a simple circuit. BUT, instead of building a stepper unit that goes to 10000 (so, 10 contacts), some fucking nimrod at Bally thought it was cooler to add a 5000pt relay. So, at 6000pts, it was on thesame contact as 1000, but also triggered the 5000pt relay. But in my case, it kept scoring 5000, and another 5000, and another... never stopping.
Only when I finally manually triggered the 5000pt relay did I notice that...
: The 5000pt score relay was STICKING
Yup... I noticed that when I pressed on the relay, with the power off, it tended to stick. I took it apart and found some dark gunk that was acting like a glue. Wow...
: I dissassembled, cleaned and reassembled the relay.
Now, it worked great!
Fourth issue issue: NO LIGHTS IN THE BACKBOX
This one was rather easy. Bally used the SHITTIEST fuse holders, which tend to disintegrate with time. I have replaced them on many other Bally EMs. So, here we go...
: FUSE HOLDERS THAT WOULD MAKE DOLLARAMA SHAKE THEIR HEADS
So this is an easy repair...
: Removed old holders, soldered in new fuse holders.
PRESTO! I can see the light!!!!
But, a couple more things are bothering me:
Fifth issue issue: NO GROUND PRONG
Listen... a new electrical plug costs 5 bucks and takes a few minutes to install. Keep a machine safe.
: TIM THE TOOL MAN TAYLOR THINKS GROUND PRONGS ARE FOR PUSSIES. ARH, ARH, ARH!!!
: Installed a new electrical plug.
But... one last thing... I found that the left kicker lane was not always sending the ball up...
Sixth issue issue: KICKER KICKS LIKE A HALF-DEAD MULE
I took the coil apart and quickly thought of someone... after I found old grease in the coil sleeve
: NO K-Y REQUIRED...
: De-grease and clean all the parts with Mean Green
NEVER use any harsh flammable cleaners such as brake cleaner or contact cleaner, unless you are into bonfires. A good cleaning and reassembly and it is all good.
WHEW!!!! DONE!!! The buyer better come quick before I change my mind! LOL I played 12 games and it now plays flawlessly. SUPER happy. I will just give it a quick wipe now and she is ready to go!