[TenTec] Frozen display on Omni V.9

[Bob Towers <mm0rkt@beeb.net>]

I have noticed in the last month or so that the display on my Omni V.9 
freezes up after about 20 minutes operation. Recently it has got worse 
and the display is frozen when I switch on the rig. Rotation of the 
tuning control does nothing except change the last digit on the display 
by +/- 1 (=100Hz). All other controls work correctly.
I am able to tune the rig using CAT control, by the way. Disconnection 
of the CAT serial link makes no difference.
Any help on this would be much appreciated.

73 and thanks in advance

Bob Towers
MM0RKT