On switch stacks like those, their correct adjustment can be self-evident. Each switch blade pair (or trio) will have a long blade and a short blade. The long blade moves when the armature plate moves. If the long blade is pulled towards the short blade, then that pair should be normally open. If the long blade is pulled away from the short blade, then that pair should be normally closed. If it's a trio (one long and two short), then one 'breaks' while the other 'makes', but the same rule applies.

Every switch should change 'state' when the armature plate moves, so if any switches are always closed or always open, then they're incorrect.

Have you overhauled the player unit yet?

The middle coil in your pic is a little toasty...may be time for a replacement

Have you tightened the switch stacks on those relays? I dont have a schematic, but if you cant get it to roll from 9 to 10, "using only the 1pt relay, then it shud be the 9th position switch on the 1pt reel not closing, or not getting to the 10pt reel. find the signal for the 1pt reel advance on the schematic, follow it to and thru the 1pt reel to the 10 pt reel advance.
On your pic, that middle relay, the blades look awful, are you sure those switches are all opening/closing correctly?

On this era of game, Gottlieb controlled the scoring between the players with dedicated "1st & 2nd Player Score Control" relays (which I think are the ones you've pictured). They should energize independently, controlled by the position of the Ball Count unit. The wiper disc on the Ball Count unit steps through the ten possible positions (5-balls per player, times 2 players), and every other ball activates the path the scoring control relay. So when on rivet 0, that's Player 1 scoring; when on rivet 1, that's Player 2 scoring.

The score reels themselves each have two separate circuit paths; one for resetting, and one for scoring. So if only the scoring is giving a problem, then that's the only path to worry about.

The 9th position rollover function first activates the higher point value score relay (e.g. rolling over from 1s to 10 activates the M relay), and then a switch closing on M, along with the closed 9th position switch on the score reel advances the next reel. But this path is also diverted through the associated player score control logic, which means that whether it's a direct 10 point score, or a 1s rollover, both will be diverted.

This means that if all 10pt scoring is going to the 2nd player, regardless of hitting 10pt value items or rolling over the Player one 1s reel, that the problem most likely lies with one of the two 1st&2nd Player Score Control relays.

These relays are often labeled as 'O' and 'P', but check your schematic to confirm. 'O' is usually the one for 10 points.

There's a make/break switch on there that diverts the scoring between the players, and if the score is going the wrong way, then that switch is in the wrong state (or has a short in the path behind it, like tabs touching).

yes, once either the P or O relays are activated via the position of the Ball Count unit, they stay energized via normally closed switches on the Game Over (usually 'QB') and Start (usually 'S' or 'SB') relays.

So if they're not staying energized, then probably one of those switches isn't making contact. Those relays are going to be on the Control Bank.

Could just be they need cleaning/gapping, or possibly a wire has popped off.

So on the Balls Played unit (aka ball count), that pair of spring-loaded fingers that touch the rivets should have a braided copper wire that attaches them (I think). Make sure that wire isn't loose/falling off, and that the fingers are making good contact with the rivets. And that the rivets are clean and the fingers are stopping on them with good alignment.

The path to O and P is through that pair of fingers/rivets, QB and SB. And probably a Jones plug, since those parts aren't co-located.
But if it's able to work at all, then that suggests a flaky connection among that path somewhere.

Normal

I think this is normal for a power up. There's a make/break switch on H that completes the path to TB1, and H won't energize until after the first start sequence begins.

The playfield lights are controlled by a make/break switch on H, so until H energizes, they won't come on.

But H needs to energize on start up. That's done via a make/break switch on SB, so if that switch got disturbed, H won't energize on its own.

Cool - that's awesome! Glad you were able to spot it.

Is your game equipped with an "Extra Chute" relay (W)?

And your Coin Chute relay is 'K'?

And are you using the left coin chute or the right coin chute? Does the behavior change if you use one vs. the other?

OK, so here's approximately how it should work from a cold start (plugged on, but not on yet):

- A coin going through the coin chute will close the coin chute switch, which completes a path via a closed switch on R to the K relay, activating K.
- K activating closes a switch on K which completes the path to the transformer (K itself is on line voltage).
- The transformer 25V side completes a path to R, activating R, and make/break switch on R takes over holding the path to the transformer.
- The transformer 6V side completes a path to the backbox lights.
- K is locked in via its own switch.
- A switch closing on K causes the score motor to run.
- A switch closing on K completes a path to the Start relay (SB), via closed switches on SB and H, and when score motor 2C closes.
- K will stay locked on until score motor 2B switch opens.
- SB tripping will close a switch on SB to keep the score motor running.
- SB tripping will complete a path to activate H.
- H activating will turn on the playfield lights.

Since SB tripped, the startup sequence will continue from there and be ready to play Player 1, Ball 1.

From your description, it sounds like this is all working correctly now? Or where does it differ?

Before any points are scored, a second coin can be put through the chute, K activates again, and this time the 2nd Player relay (PB) trips. Now two players are active. (There's probably some logic for 1st ball though, so the second player can't be added once points are scored on the first ball.)

So the summary is:
- First coin should power on and start a game.
- Second coin before first ball points are scored should add second player.

With only one coin chute, it shouldn't increment credits, but just start a game.

Have you checked the switch in the coin mech? Needs to close when the coin passes through.

Is K activating from the coin mech? (I assume so, since the score motor runs.)

Does SB (Start relay) trip after K activates? It needs to trip to continue the start/reset sequence.

How far in the sequence that I outlined above does it get?

I thought you said your game didn't have the W relay, only the one coin chute relay, K? (posts #25/#26 above.)

If it has both K and W, then the logic is a bit different.

Can you post some pictures of the coin mech and coin chute stuff you're manipulating?

But it sounds like the signal to activate the Start relay from the coin chute relay has been lost, so the Start relay never activates. That would suggest switches on the coin chute relay to check.

When you trip that coin mech switch on the coin door (last picture), then that relay on the bottom board labeled "Coin Chute Relay" should energize, and the score motor should run. Does it do that?

Then when that relay energizes, the Start relay on the relay bank next to it should trip, which continues the startup process.

At the front of bottom board (closer to the door) are there some Jones plugs with a label of "Extra Chute Adj." or such? Looks like there might be, but that portion is not quite visible in the pictures posted earlier.

The W relay energizing is supposed to be adding 2-5 credits to the credit unit. Then you use the replay button on the coin door to actually start the game. I take it that no credits are getting added when W energizes and runs the score motor?

There would be a switch on W that needs to close for that.

That'll work. If you wanted to have a coin just add credits instead of directly starting a game, that's what that plug is for. But that would require debugging the 'add credit' path...

Enjoy the game.