I am restoring a BK and did a playfield swap. Everything is functional and working except for two switches not registering - and I don't know where else to look.

I cannot get switch 13 (spinner) and switch 21 (Left Kicker - but listed as "Lower Kicker 3-Bank Left Target") to register when doing a switch test and physically having the contacts touch. I have checked the diodes on both switches and the ones on row 5 of the switch matrix - all good. Looked for loose and broken connections - none, all good. Swapped #13 and #21 with known good switches - still won't register. I can get every switch to register on the switch matrix except 13 and 21.

I am not very knowledgeable with chipsets and the main boards, but could this be a board/chip issue if everything on the playfield seems solid?

At wit's end and can definitely use some advice/direction. Thanks!

No broken wires at switches #45, #29, or #37. However, should the white/green wires be on the same switch lug for #45 or separated like this?? All the rest of the switches have both white/green wires on same switch lug.

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I know, right?! I am a bit OCD too and that connection bothered me and I was preparing to redo it and noticed the separated green/white wires. I checked all the other switches and all the other wires are paired on the same lug with the banded side of the diode the only thing on the other lug.

I went for it and it appears that yes, they should have been paired! Corrected the problem and now switches #13 and #21 now register on the switch test! Thanks PINTEC for pointing me back to #45!

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