Night Rider EM
Bally, 1976Bally Night Rider EM. I noticed the fuse was blown underneath the play field for the slingshots and pop bumpers. I turned off the game at the switch and removed the fuse and when I installed a new one, it sparked, even though the game was supposedly off. I then unplugged the game and put another fuse in and when I turned it on it immediately blew. So, what has gone wrong? Transformer, power switch, rectifier, what?
image (resized).jpgQuoted from jeffc:Is there a diode at the coil lugs?
Hey, you're right. There is one on one of the three pop bumpers. Are the other two bumpers supposed to have a diode, or is one enough for all three?
Quoted from Peruman:The spark probably came from that 1-milli farad cap being charged and discharging through the fuse.
Is there a way to test a capacitor? I was just going to replace it, along with the rectifier, but I'm having trouble finding an exact match on the cap.
Quoted from seeburg220:Is there a way to test a capacitor? I was just going to replace it, along with the rectifier, but I'm having trouble finding an exact match on the cap.
A really good multi-meter will have a cap measuring setting. Best way to measure the cap would be to disconnect it from the rest of the circuit. With that cap being a 200V electrical capacitor, unless you see burn marks or the package is deformed, it's probably OK.
Quoted from seeburg220:having trouble finding an exact match on the cap.
Higher voltage is OK
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Cridersville, OH