(Topic ID: 202311)

Flipper Parade: what am I missing here?


By currieddog

2 years ago



Topic Stats

  • 14 posts
  • 4 Pinsiders participating
  • Latest reply 2 years ago by currieddog
  • Topic is favorited by 1 Pinsider

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FP.pdf (PDF preview)

#1 2 years ago

The 100 pt. bell has started buzzing (plunger just goes up part way and holds) when a pop bumper is hit, but it won't do it if the yellow or red rollover button is hit first (only corresponding color, ie-red rollover, red bumpers). I found yet another bad solder on a gobble hole sw., but that didn't do it. The bumpers and the rollover buttons are related because hitting a button changes the pop bumper score from 1 to 10 and increases the gobble hole pts. from 100 to 300. I can see two switches close on either the F or G relays when the rollover button it hit. The buzzing stops when I turn the machine off and doesn't start again til a bumper is hit. Hitting a button after the buzzing starts does not stop it.

FP.pdf

#2 2 years ago

Check these 2 switches that activate the 100s bell.

Pinball (resized).png

#3 2 years ago

Both good. It has to be something in the 3-4 range on the schematic.

#4 2 years ago
Quoted from currieddog:

The 100 pt. bell has started buzzing (plunger just goes up part way and holds)

If those switches are open there has to be a short somewhere. Start by unsoldering one wire on each.

#5 2 years ago

The Q switch and the lightbox ball shooter track switch are the only switches that send power to the 100 point ball solenoid. You can use a piece of tape, business card or unused shrink tubing to block these switches. If there is still power going to the 100 point ball solenoid after you "block" these switches, then there is a short somewhere in the circuit. Also, check the switch lugs at the switch stacks...

Q relay switch - orange/blue wire and red/white wire
Lightbox ball shooter track switch - orange/blue wire and red/white wire

#6 2 years ago

I agree on a short, but the buzz only starts when a pop bumper is hit. If I turn the machine off, it doesn't start again til one is hit again.

The lightbox shooter track is the backbox animation; ball shot out of cannon when you make special. The ball hits the sw. to sound the bell.

#7 2 years ago

Thoroughly clean and adjust all the pop bumper switches. Also, look at the switches on the Q relay. Are they clean and adjusted properly?

#8 2 years ago

Just another thought...is the ‘tit’ of the pop-bumper skirt riding outside the spoon (and make sure that’s clean)and getting stuck?

#9 2 years ago
Quoted from currieddog:

The 100 pt. bell has started buzzing (plunger just goes up part way and holds) when a pop bumper is hit, but it won't do it if the yellow or red rollover button is hit first (only corresponding color, ie-red rollover, red bumpers). I found yet another bad solder on a gobble hole sw., but that didn't do it. The bumpers and the rollover buttons are related because hitting a button changes the pop bumper score from 1 to 10 and increases the gobble hole pts. from 100 to 300. I can see two switches close on either the F or G relays when the rollover button it hit. The buzzing stops when I turn the machine off and doesn't start again til a bumper is hit. Hitting a button after the buzzing starts does not stop it.

The Q relay and the track sw. don't engage at all.

#10 2 years ago

Add Spin Relay (Z), rubber bumpers with switches, and UNLIT bonus slingshots that set off the buzzing.

#11 2 years ago

Since those are the only two switches (Q and track) that can send power to the 100 point bell solenoid, there must be a short in the circuit.

On this machine the pop bumpers score 10 points when lit and 1 point when unlit. Does the buzzing start when the pop bumpers are lit or unlit when hit?

If the Q relay coil is not energized and the track switch is open when the buzzing occurs, then another source is sending power to the 100 point ball solenoid. Maybe a Jones plug has been mis-inserted. Check all Jones plugs on the machine to see if they are properly connected...

#12 2 years ago

Buzzing only starts if the pop bumpers are unlit (though the "white" bumper is always on,but on a separate circuit than yellow and red), and when the slingshot bonus is unlit. Something on the light circuit?

#13 2 years ago

When the buzzing begins, are relays M or N energized? Also, is there anything happening to the score reels when the buzzing starts? Can you see any of the score reels trying to advance?

#14 2 years ago

OK, *sheepish look*, I mistook the 1's bell for the 100"s, because there's a wire running from it to Q. Any rate, the N (1's) relay was holding because a wire broke off from the backside of the 1's score reel. Thanks all for checking in.

PS-did Gottlieb send some work out to the Russians back then? I've never had so many poor or broken solders.

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