The GI dimming feature of WPC pinball machines was designed around incandescent bulbs. LEDs are great for improving the lighting in machines, but due to their electrical characteristics, they have can have massive flicker issues due to the WPC dimming method. GI OCD allows you to customize how lamps are controlled in order to make them react more like incandescent bulbs, or just better in general.

Confirmed To Work With

The Addams Family / Addams Family Gold | Attack from Mars (*1) | Bram Stoker's Dracula | Cirqus Voltaire | Demolition Man | Doctor Who | Funhouse (*2) | The Getaway: High Speed II | Johnny Mnemonic | The Machine: Bride of Pin*Bot (*3) | Medieval Madness | Monster Bash | No Fear: Dangerous Sports | No Good Gofers (*4) | Scared Stiff | Star Trek: The Next Generation | Tales of the Arabian Nights | Theatre of Magic | Twilight Zone (*5) | White Water

NOTE 1: There are probably a couple of issues with Bill Ung's AFM Expansion Kit. I have one in my own machine, and it appears to be working correctly with the GI harness. The Super Jets feature also appeared to work, however, those lamps were lit more dimly than they should be. It works fine with his Mini-Saucer LED Kit, though.

NOTE 2: Customer reports that the board works properly, but the mechanical fit is extremely tight. It may not be possible to connect the USB cable with the board installed in the backbox, so configuration may need to be done before screwing the board into place.

NOTE 3: The helmet lights on Bride of Pinbot are not controlled by GI, but instead by a separate Chase board. GI OCD will not affect them at all; neither positively or negatively.

NOTE 4: No Good Gofers requires a different ribbon cable due to the auxiliary 8-driver PCB. Please notify us when ordering so that we can supply an appropriate cable.

NOTE 5: The PinballLizard clock board has LEDs installed in reverse polarity as to what the GI OCD needs. These LEDs would have to be reversed to work properly. According to other reports I have had, Ingo's clock board does not have this problem, and it will work fine without modification.

Games With Known Issues

Creature from the Black Lagoon - Chase Lamp Board will remain solidly lit and would require modification to work properly.

Should Also Work, But Not Yet Tested

Indiana Jones: The Pinball Adventure | Terminator 2: Judgement Day | Harley-Davidson | Gilligan's Island | Hurricane | Party Zone | Black Rose | Fish Tales | Judge Dredd | Popeye Saves The Earth | World Cup Soccer | The Flintstones | Corvette | Red & Ted Road Show | The Shadow | Dirty Harry | Indianapolis 500 | Jack*Bot | WHO Dunnit | Congo | Safecracker | Junk Yard | NBA Fastbreak | The Championship Pub | Cactus Canyon

Here's a short example video. The GI lights that can be seen best include those under the slingshots, under the outlane dividers, and in the upper right of the playfield.

GI OCD is interchangeable between WPC95 and WPC89 games. The only difference between the two selections available is the default configuration that is loaded on the board when it is shipped. You can still use either kit in either type of game, but you will need to reconfigure the board using the PC software if you do not choose the configuration to match your game.

Some games may have additional circuitry that may not be compatible. For example, the Creature from the Black Lagoon chase lamp board needs modifications to work correctly. If you encounter a game that it does not work properly with, I have no problem accepting returns, but please do not order if you are not comfortable with this possibility.

For more information, read the FAQ.