Kenwood Friends, I just received a Kenwood TS-520SE. The VFO doesn't turn freely and the dial (behind the window) slips sometimes. I do not have a service manual. Do any of you have experience that you can pass along concerning servicing and lubricating the '520 VFO? Does the VFO need to be removed? Or can you point me to a web page where this procedure is described? Thanks & 73, Curt, K4TL