(Topic ID: 227620)

Gottlieb Volley - no playfield features score


By arolden

6 months ago



Topic Stats

  • 23 posts
  • 9 Pinsiders participating
  • Latest reply 6 months ago by D-Gottlieb
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#1 6 months ago

Hi everyone

I am working on a Gottlieb Volley and am stuck with my troubleshooting on this one. None of the playfield switches are activating any of the score reels. The game starts without issue, kicks the ball into the shooter lane, advances through the balls and goes into game over mode without issue. Playfield lights are on. Everything seems OK except for the fact that nothing will activate the score reels.

When I manually activate the L, M, N relays, the score reel advances and the chimes go off. However, the relays do not do anything when a playfield switch is hit. Pressing the 500 and 5000 relays in the cabinet will advance the score motor, but the score reels will not advance. It's not stuck in tilt. The Jones plugs between the playfield and backbox are securely connected and I have cleaned the contacts on them. No blown fuses anywhere. No playfield switches are stuck closed.

It's like there is a total disconnect between the playfield and score reels but I cannot find where that break is.

Any ideas?

#2 6 months ago

Reply sent in private message.

#4 6 months ago
Quoted from HowardR:

Reply sent in private message.

What's the big secret?

Check you have all the Jones plugs connected. There is a smaller one from the playfield that can get missed.

#5 6 months ago
Quoted from woz:

What's the big secret?
Check you have all the Jones plugs connected. There is a smaller one from the playfield that can get missed.

I agree with the big secret. The forum is here to share knowledge, not sequester it.

#6 6 months ago

Maybe there is something in the email that can't be shared in the public forum..

#7 6 months ago
Quoted from bonzo71:

Maybe there is something in the email that can't be shared in the public forum..

Thanks, bonzo71 you're exactly right. I upvoted your post.

#8 6 months ago
Quoted from woz:

What's the big secret?
Check you have all the Jones plugs connected. There is a smaller one from the playfield that can get missed.

Yes, I'm sure they are all connected. There are 3 in total.

#9 6 months ago

Some further thoughts.

The 10, 100 and 1000 point relays work fine when activated manually. So the issue must be downstream of there. According to the schematic, each relay passes through a switch at 4A. The target bank reset relay also passes through 4A and works fine, so 4A cannot be the issue.

The manual states that scoring is through 1A. I inspected both switches at 1A and cleaned the contacts. They activate properly so they can't be the issue either.

The hunt continues...

#10 6 months ago

Are the flippers and pop bumpers working?

#11 6 months ago

there is a switch /contact on the ball in play unit that closes when it advances to ball 1 and energizes the pf. This probably needs cleaning

#12 6 months ago
Quoted from Pinbee:

Are the flippers and pop bumpers working?

Yes

Quoted from pinhead52:

there is a switch /contact on the ball in play unit that closes when it advances to ball 1 and energizes the pf. This probably needs cleaning

I'll try that tonight

#13 6 months ago

The playfield scoring is isolated at startup thru a switch on the reset relay. I would check the AX relay.

#14 6 months ago

I agree with the above 2 posts regarding the ball count unit and AX relay.

#15 6 months ago
Quoted from D-Gottlieb:

I agree with the above 2 posts regarding the ball count unit and AX relay.

if the flippers are working its not the ball count switch

#16 6 months ago
Quoted from arolden:

When I manually activate the L, M, N relays, the score reel advances and the chimes go off. However, the relays do not do anything when a playfield switch is hit

If the 10 Point (N) relay doesn't activate when you hit the 10 point playfield switches, inspect and diagnose this circuit with Alligator clip jumper wires, starting with these 2 switches.

Pinball (resized).png
#17 6 months ago
Quoted from pinhead52:

if the flippers are working its not the ball count switch

Yes, that's right.

#18 6 months ago
Quoted from HowardR:

If the 10 Point (N) relay doesn't activate when you hit the 10 point playfield switches, inspect and diagnose this circuit with Alligator clip jumper wires, starting with these 2 switches.
[quoted image]

OK, bear with me here as I am new at EM troubleshooting. As I understand it, I need to jumper the black wire on the 10 point relay to the MAR-YEL wire attached to the V relay, then to the RED+WH wire attached to the switch at 1C on the score motor. Is that right?

#19 6 months ago
Quoted from arolden:

I am new at EM troubleshooting

Good job, arolden, trying to figure this out, and asking too. I'm sorry to say what you suggest will blow a fuse. I'm kind of busy Monday & Tuesday but if you'd like to try a phone call when I can fit you in, send me your cell # in a private message.

Otherwise
Watch those 2 switches as they work, making sure in each case that the long blade moves the short blade a little bit.

Then try jumpering the Maroon+Yellow wire on a V relay switch to a Red+White wire on a Motor 1C switch, reset the game, and press a playfield 10 point switch.

#20 6 months ago

I'm going to suggest also that you verify the make-break switch on relay "V" ( add replay unit relay ) and the motor 1C switch are clean and making contact. The switch at 1C is the outermost on the stack, and is in the circuit to playboard contacts.

image (resized).jpeg
#21 6 months ago

I checked the AX and V relays and both of them were well adjusted. So then I had a look at motor switch 1C. It was making good contact physically, but when I tested it with my meter, there was no continuity. I gave it a light sand with flexstone and then I got good continuity across the contacts. That turned out to be the problem and now the game scores!

Thanks to everyone who offered advice. This was a good exercise in reading schematics for me so even though it was a simple issue, I spent a lot of time trying to understand the circuit.

One last question: when looking at the V relay, what is the easiest way to tell which switch on the relay is part of this circuit? Is the wire colour the only clue?

#22 6 months ago
Quoted from arolden:

I checked the AX and V relays and both of them were well adjusted. So then I had a look at motor switch 1C. It was making good contact physically, but when I tested it with my meter, there was no continuity. I gave it a light sand with flexstone and then I got good continuity across the contacts. That turned out to be the problem and now the game scores!
Thanks to everyone who offered advice. This was a good exercise in reading schematics for me so even though it was a simple issue, I spent a lot of time trying to understand the circuit.
One last question: when looking at the V relay, what is the easiest way to tell which switch on the relay is part of this circuit? Is the wire colour the only clue?

wire color and style of contact. 3 styles, NO (normally open) NC (normally closed) and then "C" which has a center blade and both a NC and NO piece.

So i use style and wire color to find the switch.

#23 6 months ago

Good job on chasing that down.

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