Quoted from sparkaruss:i have tried a jumper from the counter to the v relay,no change.i have jumpered the coil to the vr coil and the v coil working fine.
First, verify that the V relay is getting power. Since the replay meter is working, you can use that. If you have a meter, measure the resistance between the black terminal on the V relay, and the black terminal on the play meter. Then measure the resistance between the blue-yellow terminals on the V relay and play meter. In both cases you should get something close to zero, or about the same reading you get when you short the two meter probes together.
If the meter says the black terminals are shorted together and the blue-yellow terminals are shorted together (as they should be), then it's possible that the V relay is either mechanically or magnetically wedged/stuck. In other words, it's getting power, but it's not able to trip the latching mechanism. If you touch the V relay while you start a game you might feel it vibrate briefly as it gets energized. Sometimes they'll work fine in one orientation, like when you have it off the rail to examine it, but won't work when you put it back on the rail.
If you're lucky, the V/VR relay latching relay combo just needs a good cleaning. Clean the area where the two interlocking armatures touch with something small like a cotton swab. Be careful because it's easier to make things worse than to get it just right.
It's also possible that someone stretched the spring on the V relay by removing a loop or two, making it harder for the relay to trip the latch.
If you're not so lucky, one of the relay armatures may be magnetized which could also prevent the latch from working correctly. But eliminate the other possibilities before worrying about this.
Pay attention as you work on the V/VR latching relay because Grand Slam has another 3 that might need the same attention.
/Mark
Gold Coast
Colleyville, TX
