Salem, OR
Crossing my fingers it’s that green/red wire, which makes sense to it’s behavior. I’m also going to replace the coil.
(Topic ID: 238603)
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Nip-It
Bally, 1973
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Quoted from PinballGurus:Ugh. Learning slowly...
Praying this is the solution.
Boy, I admit you really have 'dug your feet in' w/respect to fixing this pin. Kudos to you, been an interesting read. Ditto to everyone that helped too.
That really means a lot. It’s not been easy... I’m hoping something in here can help others with similar issues. I’ve repaired countless solid state machines without issues, but this is whole new ground. 
Quoted from mbwalker:Boy, I admit you really have 'dug your feet in' w/respect to fixing this pin. Kudos to you, been an interesting read. Ditto to everyone that helped too.
Quoted from PinballGurus:That really means a lot. It’s not been easy... I’m hoping something in here can help others with similar issues. I’ve repaired countless solid state machines without issues, but this is whole new ground.
Are you sure your coin up / add player unit isn’t out of adjustment? How is the mechanical action on it? Snappy? Contacts not grimy?
It seems to work fine. I cleaned everything on it... It even engages properly and resets when I hold the Game Over relay. I’ll show a video to be sure. Thanks.
Quoted from kermit24:Are you sure your coin up / add player unit isn’t out of adjustment? How is the mechanical action on it? Snappy? Contacts not grimy?
Quoted from Cdemuro:[quoted image]
Bally "NIP-IT" came out in July of 1973 I believe,
Happy Days was set in the 50's, so how did.......???
1793c83456332bb6152b18d1aadcc6dfe85968e9.jpeg (resized).jpg
Ordered a new Game Over relay, I think the Teflon was worn out on mine? I tried to fix it to no avail.
2780E819-E7D1-4650-85D9-1288C3A3E0EE (resized).jpeg2CF5FFD4-B52B-4122-AB62-5C72A10FE94E (resized).jpeg3D5D02CB-EDD6-4436-85F1-9BA684FCF673 (resized).jpeg40826DB0-A24D-4AB1-9C19-A617505E5EE5 (resized).jpeg604F0D73-C4DF-444D-B71B-E97CD6F26008 (resized).jpeg862B5A71-D3D7-4442-B49B-E395B26B89EB (resized).jpegA2609827-608A-454F-A1D1-653AE70AE31E (resized).jpegB3F87141-C35E-443F-B8A6-459F19A3B4B3 (resized).jpegEEA831B7-2990-4AEE-8705-B70ED6A24102 (resized).jpegQuoted from PinballGurus:Now why would the Ball Release kick more than one ball???
Because the machine is not seeing the ball pass through the trough to the shooter lane?
Aarau
Hi PinballGurus
I refer to the Video in post-140 - in there I see a couple of
times "some gear turns and lets a ball roll into the Shooter-Alley
--- shortly after: A second time - AND THEN a third, forth time -
of course: No more ball - no ball rolling". Matches this video
(post-140) with nowaday-times (post-220) - or should You make an
new video (?). Do not get angry --- I watched several of Your
videos and noticed You do test in a form / order that never happens
in a regular play (in the arcade times). So when You abbreviate /
shortcut: Also an fully running Nip-It (may) act strange - as this
form / order cannot happen when we play. (((An standard example of
"shortcut and strange behaviour": We do not launch a given ball -
we take the ball out of the shooter alley and place it in the
outhole and get strange behaviour --- not launching a given ball
hinders the ball to make points / hinders the Ball-Index-Relay to
pull-in.)))
If You want to make an new / current / up to date video:
Please shoot a given ball into play, make some points --- please
simulate "normal play". Do You have the manual ? In the manual they
write +/- "Have the line cord unplugged, put two balls to the
Outhole between the flipper-bats, plug-in, toggle-on, start a
game". Does Your pin faulty kicks out both balls ?
The JPG shows the places I would look first - switches truely open ? Not only look at the long blades with the contact-points --- also look at the short studs with the solder-lug - a drop of solder there or a doghair crap of wire or one of the solder-lugs heavy bent, making faulty contact ? Or maybe the Bonus-Hole-Relay is faulty pulling ? Greetings Rolf
0Nip-It-Work-05 (resized).jpgI’ll make one just for you Rolf. I totally understand... I was kinda winging some stuff in the beginning. Like I said, this is my first EM.
Guru,
Maybe you can try to look at it from a different angle. Hopefully this wasn't covered before and I missed it.
Instead of mechanically checking the switches, how about using your multimeter and measuring across relay contacts (looking for voltages or the absence of voltages) to try to narrow down the culprit? Would that help? i.e. "I shouldn't have a voltage on this contact because these other switches should be open." type of troubleshooting.
That’s initially how I started testing, but I quickly found that it’s not reliable on an EM game as a contact that’s not in contact will beep anyways if it’s connected down the line.
Quoted from mbwalker:Guru,
Maybe you can try to look at it from a different angle. Hopefully this wasn't covered before and I missed it.
Instead of mechanically checking the switches, how about using your multimeter and measuring across relay contacts (looking for voltages or the absence of voltages) to try to narrow down the culprit? Would that help? i.e. "I shouldn't have a voltage on this contact because these other switches should be open." type of troubleshooting.
Quoted from PinballGurus:That’s initially how I started testing, but I quickly found that it’s not reliable on an EM game as a contact that’s not in contact will beep anyways if it’s connected down the line.
Got a scope?
Not yet.
Quoted from mbwalker:Got a scope?
I got everything working now, but it doesn’t always advance to Ball two and the multiple ball kicking issue. That’s it. I’m looking into your orange stuff right now sir.
Latest updates:
Hi PinballGurus
I do not understand (Your post-232) "everything working now" and the first video in post-232 showing the same old fault. Please explain. Maybe the fault never shows up when You plug-in the main power cord, toggle-on, start a game (?). In this situation the Bonus Hole Relay cannot be faulty pulling --- later on the relay may get activated and faulty stays pulling forever (?). When the fault shows up: Look at the Bonus Hole Relay - pulling / non-pulling ?
The Nip-It is a Bally pin, runs on 48VAC --- do You have an old bedroom light with a two prong plug and an cheap, old Edison-Style bulb (no neon bulb no LED bulb) ? We then use the bedroom light as an Test-Light ... we live in different time zones - for me it is time to go to sleep.Till tomorrow. Greetings Rolf
I’m think I inserted the balls incorrectly on that one... assuming there’s a sequence since it’s a multi-ball game???
Persistence for sure... the next one will be twice as easy.
Quoted from A_Bord:It was a fun thread to watch and learn from. Great persistence. Congrats!
1 week later
I ended up replacing the Bonus Score Relay since it was jacked up and now the credit button won’t start a game. It pulls the credit relay, but not the In relay now and the Ball Release no longer will kick out a ball onto the playfield. Any ideas? Pulling my hair out. Solenoids work otherwise.
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