The knocker on my Strike Zone has never worked since I've owned it. The schematic on ipbd is a scan of mine which is no better. The coil looks fine. The plunger moves freely. The make break switch on the 10 and 25 cent relays look ok. The wires are attached and the switch is properly adjusted on the replay unit EOS switch. I'm not sure where else to check.

https://www.ipdb.org/files/2404/Williams_1970_Strike_Zone_Schematic_Diagram_continuous.pdf

Any help would be appreciated.

Thank you both. I cant check again until tomorrow night, but ill repot back.

Coil is good. There are some cut wires in the coin door flopping around. Based on what you've both mentioned, I think this is going to be the issue..still trying to figure it out, but I think I'm close.

The wire on the make break switch on the 25 cent coin switch had been cut. I used a jumper..went back and activated the credit unit eos swtich and it worked. I used both of your suggestions..fredsmythson for the wire colors and HowardR for the much needed line in the schematic to the coin switches. Thank you both again for your help!!