CDP putting out too much DC current

I own an Electrocompaniet EmC-1 cdp and one of the outputs creates a hum in my speaker, which according to the factory, is caused by a dc current in the output section. It does not matter if it is the balanced or single-ended output.
Can I help myself here, is there a way to adjust this, I am a little bit handy and know how to solder, or would it be better to send the unit in for repair, which I would rather avoid doing, as the unit will be gone for at least 2 weeks.