I've had Bally KISS machines in my collections since 1988 or so.
Got both from people that did not like the theme. Both were in good
cosmetic condition but did not work. Got both fixed and sold one
to a hardcore KISS fan. It went to a good home. Now mine has developed
the dreaded false switch trigger problem in the switch matrix. Anyone know
what causes this? Diodes appear OK. I've heard the caps across the
switches go bad. Anyone confirm this?

These are not my favorite playing machines from this period but I
know if I sold it I'd never find another in good condition.
Steve