The problem I need to correct is reception 20 meters and above. The receiver goes deaf at 14.000 MHz. It does not matter the different ways I try to go beyond 13.999 MHz. Spin the VFO, no good. Use the MHz up button, no good. Any direct entry button 14 and higher, no good. The rig was mfg 3Q1989, so many short comings in production were overcome. Pins and connectors appear to be solid. Now, I need a starting point for this obstacle. I love the radio.