Repair Beseler Dichro 45s circuit board.
I am trying to fix a 1990 Beseler Dichro 45s enlarger head. It is used to make color photographic enlargements. I believe the voltage at the light bulb socket is supposed to be a stabilized 82 volts. I am getting 90-91 volts at the socket. I am trying to figure out how to test the circuit board to determine what parts are going bad. This is solid state electronics.
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