New! Dark mode!

Browsing Pinside at night? Getting tired of all the white? Switch to dark mode using the button in the top right (or CTRL-B)!

(Topic ID: 237978)

Williams Sys7 GI Relay Replacement


By spiroagnew

1 year ago



Topic Stats

  • 8 posts
  • 5 Pinsiders participating
  • Latest reply 1 year ago by spiroagnew
  • Topic is favorited by 3 Pinsiders

You

Linked Games

Topic Gallery

There have been 3 images uploaded to this topic. (View topic image gallery).

pasted_image (resized).png
6862b2da0be377ce02205cebc03a55a507245c7c (resized).jpg
6862b2da0be377ce02205cebc03a55a507245c7c (resized).jpg

#1 1 year ago

Does anyone know where these relays can be purchased?

Alternately, does anyone know a similar component that can be used in place of this relay?

I've got a Pharaoh whose upper playfield GI relay is pretty mangled, and only works intermittently. I've confirmed that it's the relay, and not the driving components by switching it with the lower PF relay.

Thanks in advance.

6862b2da0be377ce02205cebc03a55a507245c7c (resized).jpg
#2 1 year ago

I was able to disassemble mine and flip the contact plate over. Might be worth a shot?

#3 1 year ago
Quoted from zacaj:

I was able to disassemble mine and flip the contact plate over. Might be worth a shot?

I'll give this a shot.

Also, I've found that GPE carries a 12VDC/40A relay in the picture below with the same terminal configuration. I can't find the original specs of what WMS used. Can someone confirm this would work?

6862b2da0be377ce02205cebc03a55a507245c7c (resized).jpg

#4 1 year ago

From the schematics I think the relays in pharaoh run off 24V, not 12V. Unless the resistor is lowering it to 12...

pasted_image (resized).png
#6 1 year ago
Quoted from zacaj:

From the schematics I think the relays in pharaoh run off 24V, not 12V. Unless the resistor is lowering it to 12...

24V going to relay circuit.
There is a 100 ohm series resistor to this coil. A 12V coil itself is 103 ohms. So, yes - this resistor is used as a voltage divider and this would be a 12V relay.
The Omron relay in post # 3 is the correct part. Only difference is this one has a plastic shroud which is just a cosmetic difference.

#7 1 year ago

I think I got mine from parts express a few years ago. Work great.

4 weeks later
#8 1 year ago

Got the one listed above from GPE and it works just fine. The part was much larger than OEM, and it was a little tight fitting it onto the backside of the upper playfield...so I just swapped it with the original relay in the backbox as there was plenty of room for the larger replacement part back there.

Thanks GPE for replying and everyone else for helping out.

Promoted items from the Pinside Marketplace
$ 12.00
Cabinet - Other
Siegecraft Electronics
From: $ 9.00
$ 45.00
Cabinet - Shooter Rods
LightAndTimeArt
From: $ 18.00
Apparel - Men
Pinside Shop
$ 17.00
$ 4.49
Electronics
Yorktown Arcade Supply
$ 25.00
Apparel - Unisex
Project Pinball Charity
$ 69.99
Playfield - Toys/Add-ons
Lighted Pinball Mods
From: $ 19.95
Playfield - Toys/Add-ons
PinBoss Mods
$ 625.00
Flipper Parts
Mircoplayfields
From: $ 19.95
$ 40.00
Playfield - Toys/Add-ons
The MOD Couple
$ 180.00
Playfield - Toys/Add-ons
Pinball Customs
$ 128.00
Playfield - Other
ModFather Pinball Mods
$ 35.00
Various Novelties
Pinball Photos LLC
$ 19.90
Playfield - Toys/Add-ons
The MOD Couple
From: $ 38.00
Playfield - Decals
Pinball Mod Co.
From: $ 5,999.99
$ 139.00
Playfield - Toys/Add-ons
Sparky Pinball
$ 79.99
Playfield - Toys/Add-ons
Lighted Pinball Mods
$ 69.95
Playfield - Toys/Add-ons
pinballmod
$ 96.95
Cabinet - Shooter Rods
Super Skill Shot Shop
$ 2.50
Playfield - Decals
Doc's Pinball Shop
$ 48.00
Cabinet - Other
ModFather Pinball Mods
$ 13.00
Playfields
Lermods

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside