Garmin GRA 5500 Installation Manual

Contents

Garmin GRA 5500 Installation Manual Manual pdf 60 page image

190-01277-00 GRA 5500 Installation ManualRevision A Page A-7Table A-4 identifies the various unit faults that can be encountered during the initial Power On Self-Test (POST) of the GRA 5500. UseTable A-4 as a reference to determine the proper actions after a fault has been identified.Table A-4 “Various” POST (Power On Self-Test) FaultsPOST Fault Description Cause ResolutionADC Monitor 0ADC used to monitorinternal unit voltages failsself-testInternal voltage monitorfailure Return unit to Garmin for service.ADC Monitor 1ADC used to monitorinternal unit voltages failsself-testInternal voltage monitorfailure Return unit to Garmin for service.ADC Monitor 2ADC used to monitorinternal unit voltages failsself-testInternal voltage monitorfailure Return unit to Garmin for service.+12.5V RFMonitor+12.5 V RF power railoutputs improper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailure If fault persists, download the assert log and send to Garmin for diagnosis.+12.5V Monitor +12.5 V power rail outputsimproper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.-12.5V Monitor -12.5 V power rail outputsimproper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.+8V RF Monitor +8 V RF power rail outputsimproper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.-6V RF Monitor -6 V RF power rail outputsimproper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.+5.75V RFMonitor+5.75 V RF power railoutputs improper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.+5.75V Monitor +5.75 V power rail outputsimproper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.+3.3V Monitor +3.3 V power rail outputsimproper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.+1.9V Monitor +1.9 V power rail outputsimproper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailureDownload the assert log and send to Garmin for diagnosis. If fault persists,return unit to Garmin for service.+80V BackupMonitor+80 V backup power railoutputs improper voltageAircraft power inputvoltage out of range Check aircraft power supply. Cycle power to unit.Internal power supplyfailure If fault persists, download the assert log and send to Garmin for diagnosis.Main TempMain board temperaturegreater than 100° C or lessthan -60° CInstalled unit location istoo hot/cold Return unit to qualified temperature range as specified in EnvironmentalQualification Form (EQF). If fault persists, return unit to Garmin forservice.Internal failureRF TempRF board temperaturegreater than 100° C or lessthan -60° CInstalled unit location istoo hot/cold Return unit to qualified temperature range as specified in EnvironmentalQualification Form (EQF). If fault persists, return unit to Garmin forservice.Internal failureDRAFT