Tech: DE BATMAN Bridge Rectifier Issue



I have a strange issue with my DE Batman. I am having a problem with
the solenoid circuit. In test, only the knocker and automatic ball
shooter will fire, none of the rest will. I figured it for a power
supply issue, so I put in a known good working power supply. No
change in problem, so I started testing voltages.

I am not getting the 34VDC on the power supply board. So, I went back
to the start of the circuit at the transformer. I have the proper
voltage there. I then moved up the line to the Bridge rectifier,
where I had the correct voltage coming in, but nothing coming out.
So, I changed the bride rectifier. Unfortunately, the power is going
in to the rectifier, but it is still not coming out at the power
supply board. I tried measuring with various connectors pulled off in
case the problem was a voltage drop at Z1, but that did not make a
difference.

So, I tried another bridge rectifier, which I had tested prior to
installing. Same problem. I also checked the line from the bridge
rectifier to the power supply board and I can read a signal, so the
line connection appears to be intact.

Any thoughts?

Ron

.



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