Garmin — actually GarminAT — began contacting dealers and owners of the sophisticated CNX80 GPS navigator on Thursday to fix a potential transformer failure that could blank the display screen as cause minor smoke in the cockpit. Garmin told AVweb on Thursday that there have been three known failures of the transformer and that the condition has been reproduced on the test bench. Although further failures are unlikely, Garmin says it will replace transformers and a small resistor wired into the same circuit. An unknown number of units are affected and owners should contact dealers or Garmin at www.garmin.com for more information before removing and returning the unit for a repair covered by warranty.
