Old good and faithful has now encountered a power problem. The light works fine, but the mechanical side is as dead as a doornail. Since sending it for a service 2 years ago I was informed by the service man that it is the power cable inside the machine that's causing the problem at the spring ended sides. Please let me know if this is the problem, if so, where can I find a replacement part and how do I go about replacing it? I'm in Johannesburg, South Africa