Garmin International Inc 0181200 Manual De Usuario
190-01277-00
GRA 5500 Installation Manual
Revision A
Page A-7
Table A-4 identifies the various unit faults that can be encountered during the initial Power On Self-Test (POST) of the GRA 5500. Use
Table A-4 as a reference to determine the proper actions after a fault has been identified.
Table 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) Faults
POST Fault
Description
Cause
Resolution
ADC Monitor 0
ADC used to monitor
internal unit voltages fails
self-test
internal unit voltages fails
self-test
Internal voltage monitor
failure
failure
Return unit to Garmin for service.
ADC Monitor 1
ADC used to monitor
internal unit voltages fails
self-test
internal unit voltages fails
self-test
Internal voltage monitor
failure
failure
Return unit to Garmin for service.
ADC Monitor 2
ADC used to monitor
internal unit voltages fails
self-test
internal unit voltages fails
self-test
Internal voltage monitor
failure
failure
Return unit to Garmin for service.
+12.5V RF
Monitor
Monitor
+12.5 V RF power rail
outputs improper voltage
outputs improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
If fault persists, download the assert log and send to Garmin for diagnosis.
+12.5V Monitor
+12.5 V power rail outputs
improper voltage
improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
-12.5V Monitor
-12.5 V power rail outputs
improper voltage
improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
+8V RF Monitor
+8 V RF power rail outputs
improper voltage
improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
-6V RF Monitor
-6 V RF power rail outputs
improper voltage
improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
+5.75V RF
Monitor
Monitor
+5.75 V RF power rail
outputs improper voltage
outputs improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
+5.75V Monitor
+5.75 V power rail outputs
improper voltage
improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
+3.3V Monitor
+3.3 V power rail outputs
improper voltage
improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
+1.9V Monitor
+1.9 V power rail outputs
improper voltage
improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
Download the assert log and send to Garmin for diagnosis. If fault persists,
return unit to Garmin for service.
return unit to Garmin for service.
+80V Backup
Monitor
Monitor
+80 V backup power rail
outputs improper voltage
outputs improper voltage
Aircraft power input
voltage out of range
voltage out of range
Check aircraft power supply. Cycle power to unit.
Internal power supply
failure
failure
If fault persists, download the assert log and send to Garmin for diagnosis.
Main Temp
Main board temperature
greater than 100° C or less
than -60° C
greater than 100° C or less
than -60° C
Installed unit location is
too hot/cold
too hot/cold
Return unit to qualified temperature range as specified in Environmental
Qualification Form (EQF). If fault persists, return unit to Garmin for
service.
Qualification Form (EQF). If fault persists, return unit to Garmin for
service.
Internal failure
RF Temp
RF board temperature
greater than 100° C or less
than -60° C
greater than 100° C or less
than -60° C
Installed unit location is
too hot/cold
too hot/cold
Return unit to qualified temperature range as specified in Environmental
Qualification Form (EQF). If fault persists, return unit to Garmin for
service.
Qualification Form (EQF). If fault persists, return unit to Garmin for
service.
Internal failure
DRAFT