You may try pulling the red plugs if you have already done so.
Will it go into the setup menu?
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
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RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
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