I bought a DC ANR headset 2nd hand online. It had an intermittent interference problem in the flying school's Warrior. Disappointed I contacted DC in US who advised me to take it to Pacific Avionics the DC repair agent in Bankstown. They replaced the twin plug section of the cable under warranty! Send an email to DC in US and ask their advice. Their willingness to help and the great service from Pacific Avionics might surprise you...it did me.
Cleaning the plugs may be all that is required. Use electrical contact cleaner or if not available nail polish remover, surgical spirit from the chemist. Dampen some kitchen towel and give the plugs a good rub. If that doesn't work go back to plan A, David Clark really do look after their customers. I cannot speak highly enough of DC and Pacific Avionics.
Last edited by truthinbeer; 20th Oct 2012 at 22:36.