Quoted from Gogojohnnyquack:
Good morning fellow BKers. My Black Knight was left on overnight and now this morning the solenoids are not doing anything and the Black Knight is skipping words in his phrases. I'm sure that I can figure out the solenoid issue but does anyone have an idea of what might be happening with the speech?
Black Knight is back! The ball-release solenoid in the trough was intermittently working. I found it's trigger wire on switch row connector 2J3 and punched it down good. This must have been the final straw in the Q15 driver transistor's battle to stay alive and it shorted, heating up the solenoid and taking it out. I ordered and installed a new solenoid, replaced Q15 and Q14 transistors, and now all is better!
I don't know how this ended up related to the sounds but all of the sounds are back to normal as well.
Thank you everyone for your input on this.