Solenoid and diode testing

simka

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Mar 2, 2012
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ON, Canada
Hi can someone tell me how to check solenoids and diodes? I have a Black Knight and replaced the mpu/driver boards. Everything was working except the solenoid for the upper right drop targets. When I got the machine this coil was fried black, I replaced it to no avail. One day I jumped a wire from the upper left drop target solenoid to the one which wasn't working. That was a mistake, fried something on the driver board. I've sent the board back for repair. I suspect the coil which isn't working may be a wire problem. I should check the diode on the coil I used for "jumping".

Simka
 
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