Slingshots on a wpc.

[Jumbosinbad360]

Is the power on slingshots daisy chained together? to elaborate, a local pinhead has his left slingshot coil stick on when he powers up the machine.
He's unplugged the little connector to the left coil under the playfield so he can let his children carry on playing it until he get s the fault diagnosed and fixed but in doing so he said the right one doesn't fire now so i was thinking if because he unplugged the power to the left slingshot coil this would stop the right from working?


Thanks

 

[astyy]

On my '83 Bally it certainly is, with two wires on the power terminal of each solenoid (I guess apart from the last one in the chain), if you separated them then there'd be now power further down. I'm not familiar with the connector you are describing but perhaps that does similar - get the DMM out to know for sure.

 

[Jay Walker]

I'm intrigued by there being a 'little connector' for the slingshot coil; there weren't any on the Wpc games I used to service.

Generally, to make a locked-on coil safe it's best to leave the 'live' side wiring (the two slingshots will probably be on the same feed) alone and just break the return side of the circuit, by detaching the return wire from the coil. It's usually a thinner wire gauge than the supply wire(s). On older games, with diodes on the coils, the return wire connects to the terminal with the 'plain' end of the diode.

A way to check if the power has been affected would be to raise the playfield and by-pass the switching of the r/h slingshot, with a jumper wire momentarily connected between the return side of the coil (NOT the supply side) and a Ground, such as the braid inside the cabinet. If the supply side is o.k., the coil will energise.

 

[Jumbosinbad360]

 

[Jumbosinbad360]

There's no diode on the slingshot coil btw.

 

[chris b]

I am assuming this is a cv then unplugging the coil would be fine as a temp fix if the kicker is locked on on power up then I would suspect a blown transistor and or coil

 

[Jay Walker]

That's a type of slingshot mechanism I've not seen before. I suppose the connector is fitted due to the coil being relatively inaccessible. But if the 'machine' side of the connector has two wires on the terminal supplying power, one arriving from further up the playfield, and the other carrying on to any further solenoid supplied by the same fuse (and that would be the sensible approach), then separating the connector shouldn't have affected the other slingshot. Maybe the fuse has blown due the locked-on coil.

 

[chris b]

Only ever used on cv