Hi guys, I just picked up a time machine. It was working 100% when I played it in the past and when I picked it up.

Got it home and it says:

BALL MISSING

I did a quick look and the wires seem to be connected to the microswitches and nothing seems out of place.

Guess I should test the microswitches for functionality and make sure the wires have continuity every direction (in that area)?

Curious if anyone has an opinion or has run into this.

Just went into test mode.
I believe trough 3 (closest to the shooter lane), doesn't not close in test mode when I activate the switch.

Wire continuity seems to be good. The diode measures as shorted, maybe that is correct not sure.(in circuit, as is).

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I pulled that switch and removed the diode, both test good when not connected to each other.

If one of you Time Machine owners gets a sec can you look and see if your ball 3 trough switch has a diode on it? The one closest to the shooter lane.

Ok i can tell that the diode belongs.

It's the damnedest thing, in test mode this switch will not register. I even just shorted the ground to the trough 3 wire and nothing. Continuity is there in both direction on both the ground and the green/white trough 3 wire.

Stumped

Ok i kept with it and can only determine that the wire had a bad connection at the connector at the backbox.

I "tugged" it into place a little firmer, now I'm back up and running. Guess i gotta drop a new diode on that switch tomorrow.

Curious one that was happening prior to picking up the game, but didnt raise any red flags. Until......
I'm looking at the apron and it reads ...right flipper changes top lanes....

My right flipper does not change the top lanes. It also does not scroll during initials entering, only the left flipper scrolls through the characters.

Any ideas?