Garmin APOLLO GX SERIES Service Manual

Contents

© 2004 Garmin AT GX Service Manual 7-1Chapter 7. Return to Service ProceduresIntroductionPurposeThe tests described in this chapter are designed to aid service personnel in locating inoperative areaswithin the product. They also serve a complete return to service procedure after any field repair workis completed. Test specifications for Apollo GX50, GX55, GX60 and GX65 products are defined.ScopeThese test procedures affect the GX50, GX55, GX60 and GX65 in the following manner:• Common Tests are required for all GX products.• NAV Return to Service is required for all the GX products.• Comm Return to Service is required for the GX60 and GX65.• Final Unit Checkout is required for all GX products.Software verification is not required because the software was tested during development. However,you must verify that the proper version of software is installed. The hardware must be checked andverified on each unit.ReferencesEIA Standard # EIA-625UPS Aviation Technologies installation manualTST 10 Test StationAcronyms and DefinitionsAcronym DefinitionA Amperes (amps)AC Alternating CurrentA/D analog to digital converterAF Audio FrequencyAFGen Audio Frequency GeneratorAM Amplitude ModulationANT antennaAPPR approachBNC a common RF connector that has a quick bayonet mountBPF bandpass filterC Celsius (temperature)CAL calibrationCDI Course Deviation IndicatorCoax coaxial cableCOMM, or Comm communicationCONFIG configurationD/A digital to analog converterdB decibel (a logarithmic expression of ratios)