Question to the group
Starting this evening I noticed something funny.
Only occurring when I hit the scoop to start the reactor...all of a sudden, the sound of a switch is heard and points are being awarded during the reactor start-up sequence... sometimes once, sometimes twice while the reactor lightshow is going on ...

Went to tests, and everything was functioning well. No reported errors...All switches were examined and they smooth to the touch (not binding), registered quickly, no switch too close or too far, nothing "stuck". Tried cycling the game a couple times, but it happened on every game on every reactor start-up sequence (hearing 1-3 coil/switch fires and points awarded each time).

...for example, on this last game with glass off to continue the investigation, I hit the center targets to activate the reactor, hit the scoop with 28000 scored thus far, on this occasion I heard only a single coil fire which gave me 2500 points making it 30500 before the ball released after the reactor start-up light show... frustrating...first time it happened this evening I heard some switch fire 3 or 4 times while the ball was in the scoop and by the time the ball released the -destroy reactor- was already ready!!?? Made me initially think maybe the issue was with the spinner (which is usually what eventually initiates the destroy reactor part) but I don't see anything unusual there either. Then made me think maybe it's something at the "core" center pf...I will say that the sound I hear does seem like it's coming from further up on the playfield, buts tough to really say.

Again, this happened with every game tonight and only when the ball was in the scoop to start the reactor sequence, every time...and during me trying to look into this, there were ten or so games and it happened each time.... so unfortunately whatever is going on, it seems to be a consistent and repetitive issue...would love to identify the problem and solution.

Any ideas here???
Thanks!

To add to the above.
After I posted that question last night, I turned the volume way way down so as not to disturb the family while I continued to try and sort the issue out.
With the volume way down, I did not encounter that problem...what the heck!? I couldn't help myself and continued to turn the volume up adjusting the front panel speakers and the subwoofer. It did appear that at a particular volume I began to notice the above problem, and again, only during the reactor startup sequence.
Again this afternoon, with the volume relatively down, I didn't notice the above issue, however with increased volume (front speaker panels and subwoofer), I noticed the sounds of some switch firing and points being awarded, and again only during the reactor startup sequence.
Could it be that the game is rattling so much with the music and whatever is happening with the shaker at that time during this reactor startup sequence that it is somehow vibrating the playfield enough to trigger a switch during that time? I've never seen that before, but I suppose it is possible, I guess.... I'm starting to think that somehow, maybe someway, the game is somehow rattling so much (during that sequence only, which is interesting) that that's what's causing the problem... not sure.
Any thoughts or suggestions on the above?
Thanks!

About 2500 points. The sound "seemed" to be coming from the upper core playfield. I did check those slings, but good idea to check again and make sure the leafs are not too close.

Thanks for this post ...great idea to add that...and sounds like it cleaned up the overall sound up too.
I think I'll do the same!

Thank you for that idea, I will definitely check those areas as well. Yes, everything was fine until yesterday when this started happening...I know it's coming from somewhere, just need to find it. Appreciate you sharing that finding, I'll definitely look into that.

Just checked, mine also has two cables going to both spots. Could there be a chance that there is a second loose cable somewhere on yours?

Each of these 10 pin cables divide and connect to small, black I/O looking boards.
On my game, which is now functioning nicely at the current time, the upper 10-pin spot appears to come down and split to connect to the two smaller, black I/O looking boards sitting next to the bigger board (that have the 10-pin connector you're showing), and the 10-pin below that appears to come down, divide and connect to the two small black I/O looking boards that are at the center of the playfield, if that helps.