Cambridge 302 Problem - Help

Need ideas on Cambridge 302 problem that has cropped up.

Latest F/W with gear warning and PEV.
When applying power, 302 boots and displays F/W screen, shortly after
the display counts down (3,2,1) and the display goes blank and the
needle sits on zero. However the audio of the vario still works. My
PDA still functions and communicates with the 302 with gps information,
I just can't use the 302 display interface to set values or use the
302's vario needle.

The process repeats itself every time it is powered up.

Is this operator error some way or possibly a broken 302?

If someone knows how to resolve this, Thanks in advance!

Wells


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