Does anyone know who works on McIntosh amps? I have an MC440M which has an extremely noisy fan. It is pretty beat up physically but works fine, except for the fan noise. The fan has only 1 screw holding it in, and I cannot find screws to match it locally. I have tried to dismantle the amp and even to just remove the fan assembly itself but was unsuccessful. There is also something like a screw rolling around inside the amp which worries me. I am afraid to try too much and completely screw it up. I think I need some suction cups to remove the glass over the meters correct? I emailed McIntosh but they have not replied. Any suggestions?