just got game buttoned up...almost. when switching players (at least all that im noticing), once in a while, not every time, it will add 1000 or 10000 pts. had this problem before on a space mission as seen in my other posts and it ended up being the appropriate points relay on the score motor cam. thought that may be the case and i tried cleaning / burnishing that on cam impulse A as it's all i could find; but that had no luck. maybe i didn't clean it good enough? anything else that im missing or forgetting to look at?

messed with cam impulse A again with no luck. seems to be properly adjusted but when switching player; game will intermittently add 1000 or 10000 pts to the player before ball is even shot. poked around with the scoring relays in the head and they all work and operate; but i noticed if i gently push on them they will all "machine gun" action. just cycle back and forth like a machine gun. maybe this is my problem on the 1000 or 10000 point relays? is this normal action? if i firmly press them; they're fine.

anybody have any advice here? am i on the right track or am i missing something/somewhere else to look into?

do you mean 1000 and 10k relays? tough to diagnose the relays during this. i would have to stand behind the machine and watch in the head (where they're located). i could do it, just take some time as the problem isn't every time it switches players. ill try and check it out and report back here.

just checked things out. i watched it switch players and the 1000 pt relay triggered when switching players. as far as when it shoots it to the lane; yes i believe thats when it's happening. it's a fast process as i believe the ball is shot to the lane at the same time it switches players.

great info, thanks! tried pounding the playfield and had no luck. even lifted it up slightly and firmly set it back down a bunch of time and nothing. assuming vibration isn't the issue. im not following you with the rollover or target switches though; which ones are those? this is tough to diagnose as you could play 1 or 2 balls with 3-4 players and have it be fine; so it'll take some time to get through everything.

having trouble understanding what you're explaining. the 100 point relay didn't move from the one that i saw. it was the 1000 point relay that triggered itself, thus scoring the reel when switching players. i watched the relay trigger between switching players.

understood. so the 1000 pt relay carries it's signal through the 100 point relay? what's the next step here?

WOW that got tricky!!!! anyways, stuck a piece of paper in the no.1 star relay between switches grey/yellow & brown/yellow. played 2 full games on 4 players with 5 balls and it's good! im still stumped. where the paper lies is a NC switch, and when the relay energizes it's open; the switch adjustment appears ok; but with paper removedit continues it's random scoring....what is proper position/adj. of this switch?

spoke too soon; was playing a 3rd game and it triggered the 10000 relay switching to player 2

i blocked both sides of this switch. its a make/break switch. with the paper blocking it the game played fine but when you would rack up the bonus lights (5000,10k,15k and so on) it counts down when the ball drains and didnt score them on the reels with the paper in place. paper removed it would score on the reels. so; this switch seems to control the bonus points on the score reels as they're lit up. maybe my problem is somewhere in a bonus unit?

i am STUMPED. thought maybe the bonus units had something going on but check and cleaned those few switches on the left and right units...again, and no luck. it's something with this no.1 star switch as paper over the middle contact(grey/yellow) on the make/break switch will fix it and no more mystery scoring! i've looked and cleaned and adjusted the switch enough times to break it! whatever this switch controls (i thought was the bonus units) must be what's creating my mystery scoring issue....i can't figure it out though

thank you!!! ill check out the left and right bonus relays later today and see what i can find. did a quick glance at them last night and they LOOKED ok; but i didnt clean or do any adjustments on them

so for the left and right bonus relays; it looks like im to try blocking the switches with the grey/yellow wires to see if that fixes my issue?

great scott!!! i think we may have got it! the brown/green & brown/orange contact on the right bonus relay was a little snug. loosened that baby up a bit and played 2 full games on 4 players flawlessly. except now my "score right bonus" hole isn't ejecting the ball when it falls in. not sure the correct term but it's the small pit on the right side of playfield the ball falls into and racks up points and then it spits it back out. was working fine! i fixed one problem and now created another. this too is an intermittent problem that is fixed by playing with the flippers and then it shoots the ball out.