Quoted from vid1900:Tony asks: "Hey Vid, I don't see those yellow capacitors (?) on my Power Supply, nor do I see them on the schematic. Do I need to update that?"
Williams had two caps (.22mfd) and two diodes (1N4001) that were used only on Hot Tip and Lucky Seven (as far as I can tell). After a while, they quit putting them on the boards at all.
So unless you have one those games, don't worry if you have them, or not.
If you do get one of those games, and are replacing the power supply board, remember to add them in.
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I have a World Cup with the yellow caps and diodes. Since this game doesn't require them, I'm going to take them off rather than replace/leave them in.