I have a slight problem with my Series III, which has been happening for some time now and Peter Wielk has 'possibly' boiled it down to a faulty power supply. Before I call an engineer to help out with this problem, has anyone else experienced this (See Below *) and if so, is it a fairly easy problem to solve?

* Static-like crackles sounding from the Individual Outputs / Mix Outputs and Headphone Outputs. This crackle will transmit from the Fairlight to a Marshal guitar amp in my studio, without any connection to and from either, so there must be some intererence/shielding breakdown somewhere, maybe? *

Cheers,
Peter