(Topic ID: 316356)

Scared stiff

By inovermyhead

9 months ago

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#1 9 months ago

I work in a little pizza shop that has some arcade games and scared stiff is one of them. I took it upon myself to fix them with the bosses approval and the only problem I've ran in to is when I play scared stiff is that the flipper stays up after I hit it. It'll only go down if I shut off the game or open the door I swapped the flipper coils under neath the play field to see if one of them is bad but the problem persisted I'm thinking that there's a short somewhere in the wires for the left side flipper but I don't know how to check for it as stated by my username I'm in over my head. any help or advise is greatly appreciated

#2 9 months ago

Is the return spring missing?

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#3 9 months ago
Quoted from PlanetExpress:

Is the return spring missing? [quoted image]

no the spring is there I've added a photo of the flipper coil that's being the issue if that helps any also i swapped the right flipper coil for the left and it repeated the problem with out fail on the left side witch makes me believe that its electrical

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#4 9 months ago

Take the glass off and manually move the flippers. Do they move smoothly with no resistance.

start a game without hitting the flippers. Manually move the flippers to their up position with your hand.

Does the flipper stay up and resist being pulled back down?

If the flipper stays up the hold winding in the coil is energized when it shouldn’t be which is either a short to ground or a board issue.

Another possibility is your flipper switch optos. Go to the test menu, switch levels and take a picture and post it here

#5 9 months ago

I assume you checked your see if the coil stop is mushroomed & magnetized?

#6 9 months ago

You say flipper drops if you turn off game or open the coin door. That likely rules out a mechanical problem. It sounds like the coil power is getting stuck on. I’m with Pump House and in my own experience this has always turned out to be a board problem. You can ship boards to be repaired for a reasonable cost. First you want to try to narrow it down if possible.

#7 9 months ago

The_Pump_House i belive this is what you asked for im not 100% and i did start a game and manuly moved the flipper and it moved freely back and fourth

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#8 9 months ago

I schould check also the working of the flipper opto's

1 week later
#9 9 months ago
Quoted from inovermyhead:

The_Pump_House i belive this is what you asked for im not 100% and i did start a game and manuly moved the flipper and it moved freely back and fourth[quoted image][quoted image]

No. The switch test will show a grid of boxes. When you activate a switch the box corresponding to it will light up. Take a pic of that screen.

Remove the glass. With a game running, manually move the flipper to the up position and see if it stays there and resists being pulled back down.

#10 9 months ago
Quoted from inovermyhead:

It'll only go down if I shut off the game or open the door

This is definitely not the switch, as this is only releasing when the power is shut off(either with the power switch or the coin door kill switch). Use the manual:
If this is the left side, you are looking at Q87 and Q89. Follow the instructions in pinwiki(https://www.pinwiki.com/wiki/index.php/Williams_WPC#Coil_Locks_On) to test these transistors. You can easily replace these, or send out the relevant boards for repair.

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