recalibration Issue with TackTick MN100-2 Analog Wind Display

[touchngo]

I have a TackTick MN100-2 Analog Wind Display that I would like to recalibrate, but can not get the setup page to scroll past UNIT (and for that matter, can't change anything on the Unit page).

I have replaced all of the rubber buttons and the \/ arrow powers the unit on happily. The O button allows me to enter setup, and the < and > buttons work happily when I am changing the backlighting, but for some reason, these are the only functions that I can use.

I recently moved the unit from my other boat and as the masthead wand is slightly off center on this new installation, I would like to recalibrate/recenter it.

Appreciate any and all suggestions.

Cheers, PT

[dgmultimedia]

http://www.tacktick.net/pdf/tacktick...Display_ug.pdf

[touchngo]

Thanks. Already have the manual, and understand the process. The issue is that I can only get to the UNITS page and no further. My post was in the hope that someone else has experienced the same issue and knew how to resolve it.

Cheers PT