Long time Australian Apple // enthusiasts and full time technicians Dean Claxton and Mark Cummings, lamenting the lack of official documentation on power supply circuits, have reverse engineered a circuit diagram, schematic and a parts list for the DynaComp 240V power supply (model 699-00136) which was commonly used in the Platinum Apple //e. The DynaComp 110V power supplies are probably very similar and therefore these resources will be useful for troubleshooting those models too.

The article also discusses testing capacitors in-circuit using an ESR meter.