Ramona, CA
Preventative maintenance is important on games that are 40+ years old. A lot of the important electrical components (electrolytic caps and connector pins especially) are waaaaaay past their manufactured/intended life span
(Topic ID: 319105)
Linked Games
Haunted House
Gottlieb, 1982
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Quoted from stvns78:Bought a 4800 50v and a 6800 50v alum cap to replace the two original filter caps from Digikey. Going to perform the ground mods. I do have the occasional thunk but I am not comfortable performing the mod based on the limited documentation I have found. Clipping the pins on the ICs makes me very nervous. Might just buy a new driver board on Pinballlife.com vs jacking with the factory driver board.
Thanks!
I would just ignore the thunk, personally. Only happens on bootup. Also you could have gone up in uf rating on those caps and have been fine.
Quoted from Dayhuff:Biggest problems I have with the system 80 stuff are the displays acting flakey and some of the sounds not being right. Cleaning the connectors on the display/MPU and the sound board connector is only a very short term fix for both problems. Anybody have the forever fix for both issues?
John
Did you do the ground mods, replace the filter cap(s) and actually repin the connectors? I have a Mars and have never had this problem, once I got it up 100%
shoulda gone with Ni-Wumpf or Pascal. Also, have you repinned any of the connectors? That's a must on these GottliebsQuoted from stvns78:The pascal is the only other option I can find in stock. But it sounds like I would still need to use the original PS?
https://www.flippp.fr/pi80.php
This one will replace all boards except the sound board I believe
Quoted from stvns78:Knxwledge
I have not repinned the connectors but have seriously thought about it. I have examined most of the edge connectors and they all look pretty decent and I was not having any connection issues before I bricked it. What do you think about deoxit for a cleaning and protection?
It seems great plains is no longer a viable place to get cheap connector pins at this time. Macro is about 2.5x the price. Any other good place to get the pins. Also what is the best way to remove the previous pin as I would be reusing the housing? I have seen there is a tool but that tool seems unreasonable expensive.
Also the A12P4 3x5 molex was smashed and partial broken when I got it. I straightened the pins back out and connected it and all seems fine but that is the one I would repin. I have been unable to locate that specific connector. I assume any 3x5 molex that accept the AWG size would suffice such as this? I really only need to repin the male 3x5 connector. The female is fine.
amazon.com link »
BTW I bought a GQ-4X V4 to burn a new EPROM. Going to try to reburn the original, if that doesnt work I had already placed an order for 4 used ones and will burn one of them.
Thanks y'all!
White connector pins not on power supply: (the ones labeled "For System One Pins")
https://www.docentelectronics.com/httpdocs/AmusementGames/Pinball/Gottlieb/system%2080.htm
http://www.pbresource.com/molex.html
Interconnect (black) pins:
https://www.arcadepartsandrepair.com/store/pinball-kits-parts/pinball-parts/bifurcated-edge-connector-split-pins-18-24-awg-100-pack-me1004/
(this is the only place I know of that sells these for any sort of reasonable price)
Power supply pins are standard 0.156" molex crimps, used in many other pinball machines:
https://www.arcadepartsandrepair.com/store/pinball-kits-parts/pinball-parts/molex-156-trifurcon-pins-female-18-20-awg-loose-100-pack-ca1007/
https://www.arcadepartsandrepair.com/store/pinball-kits-parts/pinball-parts/molex-156-trifurcon-pins-female-22-26-awg-loose-100-pack-ca1008/
(this might not be the cheapest vendor for these, shop around they are extremely common)
Docent sells an economy removal tool, might wanna get two in case you break one. If you repin the interconnect and keep the original wiring, I had problems with the wiring being too short after repinning both sides (on a Mars God of War, HH might be different), so you'll either have to put in new wiring (Docent sells a kit thats wires pre-crimped, you provide the connector housings) or drill new holes and mount the pcb standoffs for the MPU lower. It's not necessary to repin every single connector, I think repinning the interconnect and power connectors is a good start, then do the rest as necessary.
Also, idk where you found Gottlieb pinball ROMs but keep it on the downlow, the company that owns Gottlieb is extremely protective of their copyright (fuck them). You normally cannot find any manuals or ROMs freely available online.
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