Here on Pinside, we've created 6+ clubs to promote the stars of the Class of System 3-9:
Barracora, Black Knight, Firepower, Gorgar, Sorcerer, Space Shuttle, etc...
Now we have a club for when you'd like to reach a wider Williams audience, and bring people together to discuss:

* troubleshooting
* repair
* finding replacement parts
* creating replacement parts
* buying/selling/trading parts
* sharing ideas

Hopefully we can bring together the biggest fans, and the sharpest minds in restoring these Williams classics from (1977-1985.)

If you have a question or contribution that you think may apply to all early Williams SS games, then this is the place to post it !

Williams Repair Specialists:
(your name here)

Repair Links
http://www.pinwiki.com/wiki/index.php?title=Williams_System_3_-_7
http://www.pinwiki.com/wiki/index.php?title=Williams_System_9_-_11
http://pinside.com/pinball/forum/topic/vids-guide-to-bulletproofing-williams-system-6

[x] add to your favorites !

Have fun!
-mof

System (3-9) Clubs:

Barracora
http://pinside.com/pinball/forum/topic/barracora-club-members-only

Blackout
https://pinside.com/pinball/forum/topic/blackout-club-fans-welcome

Black Knight
http://pinside.com/pinball/forum/topic/black-knight-clubmembers-only

Firepower
http://pinside.com/pinball/forum/topic/the-firepower-club

Gorgar
http://pinside.com/pinball/forum/topic/gorgar-back-from-the-dead-and-terrifying

Space Shuttle
http://pinside.com/pinball/forum/topic/space-shuttle-crew-members-club-prepare-for-liftoff

Sorcerer
https://pinside.com/pinball/forum/topic/wanted-sorcerer-cabinet-stencils/

reserved2.

Any ideas on this one?
-mof
http://pinside.com/pinball/forum/topic/general-sys-9-tech-sound-humming

Black Knight (sys 7)
Barracora (sys 7)
Sorcerer (sys 9)
Space Shuttle (sys 9)

-mof

This fella is looking for help...
http://pinside.com/pinball/forum/topic/blackout
-mof

Starting to look more carefully at legs...

Wondering what the proper legs are for a Barracora?
Mine seem to have a single rib down the corner of the leg...
Anyone familiar with legs for System 7 in general?

My Space Shuttle has corner-ribbed chrome
My Barracora has corner-ribber black

I see with High Speed and forward, a half rib and later a full rib are introduced into the design...

-mof

Looking for help to create an index of all Williams games with evil pops -- any help appreciated...
https://pinside.com/pinball/forum/topic/most-evil-pop-pen
Do you know of any early Williams games with pops with direct line of sight to a drain?
-mof

Does anyone know what resistor this should be? It's connected to the Gorgar flash lamp for the snake pit.

thanks,
mof

201507_Gor-resistor.jpg

I see the ones in Grand Lizard (sys11) are ceramic 330 ohm 7w. Should I upgrade to that one?
-mof

Just picked up a Defender. System 7. Rottendog MPU.
Sometimes when I flip on the power, the two LEDs on the MPU do not light up, and I'm stuck with just GI on.

Can someone give me the right connectors to reseat?
Just finished a marathon 20 hour shop job to pretty it up, and now I can't get in a game, LOL ! (It worked earlier.)

thanks,
mof

Swapped in a Rottendog power board from ANOTHER machine, and it works, so I'll start by testing and re-flowing the pins...

-mof

(dble post, crap internet today.)

Swapped in a Rottendog power board from ANOTHER machine, and it works, so I'll start by testing and re-flowing the pins...

-mof

Blackout Club now open!
-mof

https://pinside.com/pinball/forum/topic/blackout-club-fans-welcome

Tearing down a system 7 right now. Need about 10 machine and wood screws that hold up the plastics. Wondering if anyone has a favorite vendor for grabbing the closest replica to original. Sometimes these things get repro'd funny.

Mof

System 7:

a. switch test good
b. solenoid test good

1-player game won't start. (I have no battery pack atm, so I'm getting into attract mode via coin door switches)

Steps
1. I'm in attract mode
2. I can coin up
3. I click start, and the coin count drops by 1
4. High score bulb flashes... A few bonus lights light up in a particular order and repeat

Seems awfully close... Wait a sec -- doesn't that flashing mean...

SOLVED, ball trough switch issues... Ha. They work in switch test but not with 2 balls in there, will have to investigate further.

-mof

System 7 gurus!
Looking for switch matrix help here:
https://pinside.com/pinball/forum/topic/williams-system-7-switch-matrix-issue

What's the best way to adjust system 7 drops so that when they reset, they don't drop again? I have a few that drop after reset (sometimes)

I loosened both of the thin metal brackets a few screw turns so that the drops would slide easier up and down...

-mof

bump for drops question.

Thanks will give that a try
mof

SOLVED

So I'm on a Williams system7 with GI working on the lower PF. Those bulbs test properly at 6vac.

The top half of the playfield has no GI, but the sockets (10 of them) all test out fine at 5.9 to 6.2 vac.

I'm stumped. How can 10 sockets possibly fail with good voltage?

-mof

Answer here:

https://pinside.com/pinball/forum/topic/willams-system-7-gi-out-only-upper-playfield

Display mounting question for the Williams gurus:
pinside.com/pinball/forum/topic/system-3-9-display-repair

Question -- what is the name of the 2-pin molex latching connector for the GI input? (So I can go order one on digikey or something) I see the circle and the half-dome shapes...

I have a hacked up power board from a recent pick-up, and I want to find original parts so I can swap a rottendog from another machine.

-mof

(here it is in a different position, instead of bottom right) on the rottendog board.)

20220727_2-pin-molex-GI-input (resized).jpg

Thanks

I'm doing some searches with that search term, still not seeing the original pin shapes from the 1980s

those shapes look right!!! nice sleuthing skills! I'll try em out.

They were correct, sir!!!