[TenTec] Help Omni Vi+ display

[MICHAEL SOUHRADA]

Hope someone can shed some light on this event.
My display on 160 meters ONLY is way off. It shows 
73.965 ??? 
All the others are just fine. 
Been studying the manual (not much help with out a block 
diagram) and reset a few connectors in the line. 
No luck. Has this happened to other Omni VI+ or similar
operators?
Really odd. I've had displays go sour but not quite like
this. 

Mike
Iowa