School me on Williams System 11B

Broodwich

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I have a buddy who recently just bought a Jokerz! and Big Guns. I see that's a 11B system and i was wondering what i should watch out for?

I've heard of leaky batteries?

I tend to be his goto guy when it comes to arcade games, but pins are completely foreign to me. I'm thinking he should have asked the seller to put the machines in test mode so we could see that most/all is good to go but my buddy did play a few games on each with 0 issues.

Any help would greatly be appreciated (and now i have my buddies to work on before i go and break one of my own ;-) )

Edit: added pictures (pay no attention to the missing display in the jokerz! it is being replaced before my buddy gets it).

I also ran across the ipdb.org site, good stuff there :D

I also see that big guns can also have system 11a in it also. and jokerz! has a stereo sound board which is different than the rest?
 

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Rock solid

There isn't much to look out for.. Just move the battery holder off the pcb.. ($3 radio shack part). Also, the GI connector thats on the interconnect pcb tends to burn up.. 5 of mine did. Just cut it off and re-pin if needed.. That's it
 
If you're going to move the batteries consider adding an NVRAM RAM adapter to eliminate the need for batteries.

Otherwise, if it's working fine I would just play it until something breaks and then ask here if you can't fix it.
 
If you're going to move the batteries consider adding an NVRAM RAM adapter to eliminate the need for batteries.

Otherwise, if it's working fine I would just play it until something breaks and then ask here if you can't fix it.

Lindsay, do you have a link to this or the parts? I have 2 System 11 games that still have the AA's on the boards. I was thinking about getting the battery re-locators, but your solution sounds even better.

Thanks!
 
Lindsey do you have any of these for a gottlieb system3? Or does this need it? since it is a watch battery? Still would like to never change the batteries again!
 
Lindsey do you have any of these for a gottlieb system3? Or does this need it? since it is a watch battery? Still would like to never change the batteries again!

My 6264 adapter might work with Gottlieb system 3 but I've never tested it. It looks like they're using both enable pins which my adapters are not configured for but it might still work. I'll probably figure something out for System 3 soon.

The problem with that system is the RAMs are not socketed so you have to desolder the original RAM and add a socket. The CPU isn't even socketed so a CPU socket based board isn't a viable work-around. You're stuck desoldering no matter what.
 
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