Garmin AT Rev --© 2004 Garmin AT GX Service Manual 8-21Smart Key ReplacementThis procedure describes the removal and replacement of the smart key flex strip under the display.Parts Required• 418-5107-00 FLEX CIRCUIT ASSEMBLY, SOFT KEYRemoval1. Before starting this procedure, fill out a Service Data Sheet if this has not already been done. Acopy is located at the back of this manual.2. Power the unit off and disconnect power from the unit.3. Remove the bezel assembly (see Bezel Assembly Replacement procedure).4. Remove the display (see Display Replacement procedure).5. Peel off the soft key flex circuit assembly.Replacement1. Peel the paper backing off the soft key flex circuit assembly (418-5107-00).2. Put the new soft key flex circuit assembly on the display according to Figure 8-5. Improperplacement will result in smart key malfunction.3. Replace the display (see Display Replacement procedure).4. Replace the bezel assembly (see Bezel Assembly Replacement procedure).5. Test the unit to verify proper operation (see Return to Service procedures).6. Using the Service Data Sheet, reenter the customer configuration.Figure 8-5. Flex Circuit Placement