[TenTec] Digital readout Corsair II

[Paul DeWitte K9OT]

My Corsair II has a frequency readout problem.  Only after it has been on
for a while this happens. All or part of the display will go blank. If you
turn it off and back on it will all come back on but will do the same thing
again soon. Has anybody had this problem? If so what was the fix?  It just
came back fron TN. and they said they couldnt find anything wrong with it.
It started doing it again the first day back. Thanks 73 Paul K9OT