[1000mp] Frozen main VFO knob

[R. Bruce Moricca]

The main tuning knob of my 1000MP has abruptly frozen up.  It worked fine yesterday, but this am it felt as if it was binding  and it took more torque to turn the knob.  After about 5 minutes of use it became much more difficult to turn.  I removed the knob and removed the "shaft tension spring" completely as outline on page 102 of the manual but the shaft is still very difficult to turn.

Anyone in the group had this problem, or any thoughts of things to check before I crack the case and get in over my head.

Thanks in advance, Bruce N6RB