(Topic ID: 73213)

Home for the Gottlieb SYS1-SYS80B guys, Yep it's a club :)

By Gerry

10 years ago


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  • Latest reply 43 hours ago by JakePG
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Post #5634 Gold Wings Settings page Posted by mbaumle (1 year ago)

Post #5771 Arena settings page Posted by BorgDog (1 year ago)

Post #5801 Robowar settings page Posted by BorgDog (1 year ago)


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#500 9 years ago

Great thread!
Cool video of Rack em' Up too.

I find it hard to love the 80b's....(and I've had one for 20 years!) but I find it easy to love the System 80 and 80A.

If anyone here knows of a Pink Panther for sale....lmk, I'd be interested. I'm honestly sad I don't have it anymore :/

Here is a video of my old one,

1 month later
#531 9 years ago

here's a first....for youtube. My Punk!
they do exist...

1 year later
#1096 7 years ago
Quoted from Pinballerchef:

Hmmmm that didn't seem to change the flipper power. I adjusted it so just as the coil hits the stop.....that switch opens up. I had to figure out that the right flipper has an extra switch contact to change the ROBO inserts up top so it's the switch just underneath it for the flipper to move.

you also have to have good tension on the contacts. If you have good mechanics in the assembly, it's all in the EOS.

in general, Gottliebs and that metal ramp shot are tough (I have one on MGOW) Nicely aligned flippers with decent power and you should be able to nail it, if it's a clean shot.

2 months later
#1120 7 years ago

I have a widebody lockdown bar for sale, $100
a good working system 80 sound/speech board for sale for $110

pm if interested

7 years later
#6250 6 months ago
Quoted from radial_head:

Well I've doubled up the grounds on the CPU-Driver interconnect and repined all of the driver board connections driving the coils, so I don't think that's the issue. I've swapped out driver boards with two other drivers I had around (one original and one a NiWumpf) and that didn't change the issue.
What should I be looking for that would cause something like this to trigger? No reason that I should be suspecting the bridge rectifier for some reason?
You're right, the CPU does seem to look like the culprit but in sone ways I'm not even sure where to begin to look to start testing it. 5V and solid ground at Z16 or try swapping out Z16 with a new chip? Would the 6532 chips be the looking point?
Happily will accept any guidance here. I'll be back in front of the game on tuesday.

When a z16 gets shorted or goes, it takes out the whole switch line. I would be eye balling each coil on that knocker circuit for a faulty diode or short, and at the very least, clip the knocker for now if it’s the only thing causing other games issues and voltage dips.

As for the grounding, it’s been debated for years. Is the extra ground enough on the cpu/driver connector? Or is it best to take an hour and tie each board to the ground plane on the cabinet floor. I do the latter, and I’ve never had an issue since that has become my practice. It also gives me solid peace of mind.
The reason is, it’s just more stable.
Adding an extra ground to one connector is still depending on that lone pin in the harness not to fail, which is then responsible for keeping ground on all other circuit boards in the game.
Gottliebs service bulletin 40 years ago was the fix for bare minimum.
Grounding each board tied back to the ground plane is why they call it “bullet proofing”

#6258 6 months ago
Quoted from sparky672:

From toddtuckey who has repaired and shipped thousands of Gottlieb machines worldwide since the 1980's:

Do the ground mod if the redundancy makes you feel better, but it's not a magic bullet solution, and IMO time is better spent bullet-proofing via methodically changing 40-yr-old connector pins. As far as the solder blob ground mod, it's just ridiculous.

Yes, this is the one person that has consistently debated it, and while I love Todd, that doesn’t make what I said or what other people have documented about the issue any less true.
While he has shipped thousands of machines, he’s also a business, and has also parted out a lot of machines to make one machine better that otherwise would have been saved by the average person.
To each their own I guess.

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