Monday 27 November 2017 at 03:13
i think the power thats returning from the coil in pin8 1j19 is roughly 77volts same as pin 9 but when i attach the wire to pin 8 if i remeber correctly it kills the pin 1 base part of transistor Q77 causing it to lock on after it fails but i really have no idea i have changed the coil and diode ou...
Source: http://pinside.com/pinball/forum/topic/f14-upper-diverter-locked-on#post-4093391