Hello again my pinball friends!
I have decided to take on a beast of a project: 1980 Gottlieb Amazing Spider-Man. I inherited the game with many issues. So far, I have fixed all 6-digit displays, added free-play jumper wire, cleaned driver edge contacts, and added the extra ground and +5V in the interconnect harness. What I haven't done is replace the old orange filter capacitor (I have the replacement 12,000 25V from GPE), and I have not added any ground mods or performed the pop bumber board mods yet. At this point, I have a few switches operating as intended ( shown in video link below ). The 1st pop-out hole works, but 2 and 3 are not responding. The star rollover works, but pop bumbers do not respond. A few of the drop target switches respond, not all of them. When running switch diagnostic, I get 1, 40, 42. I checked all "42" switches (8 total) and none of them are closed. I have not checked individual connection voltages or continuity (with exception to the 2 wires I added), for the interconnect harness. The edge contacts for the driver board were cleaned using a pink eraser. The mpu board is a newer rottendog. The power board appears to be working as intended. My gut says this is a connector issue since some of the switches started working after cleaning driver board interconnect harness contacts. Also, I inherited the interconnect harness with the black and red wires added (without the additional ground and +5V).
Some more info: During diagnostic, the switches that don't register during gameplay do not register during diagnostic. .For the ones that work, their number appears in the display. Also, even though the 2 lower "42" switches work (see video), they do not register when activated during diagnostic. Lots of inconsistent switch issues. Once these switches are back to normal, the game will be great!
I added pics showing the non-activating switches in red. The highlighted switches are all the 42's.
I appreciate all of your time and feedback! Pinside has been really good to me.