Hello. I have my Kenwood TS-440S finally "de-dotted". It required finding replacement PLL and RF boards. One problem remains: when turning the VFO tuning knob, I notice that the 100Hz and 10Hz digits will lag, jump, or even skip. It does NOT do this when using the "up" and "down" buttons on the microphone. It seems logical to me that the encoder itself is at fault. Before I open up the front of this radio, I would like to verify with someone more knowlegible that this is an actual encoder problem. I'm reluctant to risk messing up something on the control board PCB's by removing them, unless I really need to. It seems to me that it is logical that this is an actual encoder issue; can the encoder be cleaned or repaired?
Thank you very much for your time and input.
73,
Francis WA4ZYN