Repair 82002A charger?

[Marcel Samek]

I have a non-functioning 82002a charger and have no electrical engineering skill. (I do own a multimeter though). Measuring the output of the charger (at the connector) when its plugged in, I get 0 volts on one side of the triple connector and approximately -.2 volts on the other.

While I have found the schematic for the circuit, I was wondering if someone could tell me what the readings should be at various points in the circuit so that I could identify the bad component.