Garmin G500 Manuel - Page 28

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3.2.2 GPS Data Failure

GPS data failure may be indicated by any or all of following:



Loss of GPS course deviation information on HSI



Amber "LOI" text on the HSI



Amber "NO GPS POSITION" text on the MFD moving map



Loss of waypoint bearing or distance information

Select alternate GPS source, if available, by pressing "1-2" softkey on

PFD.

If alternate GPS source is not available:

Select alternate navigation source using "CDI," "1-2," or "BRG"

softkeys on PFD, or refer directly to external navigation data.

3.2.3 Navigation Data Failure (VOR/LOC/GS/ADF)

Navigation data failure may be indicated by any or all of following:



Loss of course deviation information on HSI



Loss of glideslope/glidepath information on PFD



Loss of bearing pointer on HSI

Select alternate navigation source using "CDI," "1-2," or "BRG"

softkeys on PFD, or refer directly to external navigation data.

3.2.4 Synthetic Vision (SVT) Failure

Several data sources are required to display SVT on the PFD (GPS, terrain

database, attitude information, etc.). If any of these required data sources

become unreliable or unavailable, SVT will automatically be removed, and the

PFD will revert to the standard display of blue sky over brown ground. If there

is a discrepancy between the SVT display and the actual terrain around the

aircraft, SVT should be turned off manually.

To turn off SVT:

Press the "PFD" softkey on the PFD.

Press the "SYN VIS" softkey to turn off SVT.

3.2.5 Electrical Load Shedding

The following equipment is considered non-essential. If it becomes necessary to

reduce electrical load (for example, during loss of generators or alternators),

power to these units may be removed in the order listed.

PFD 2 circuit breaker(s) [if installed] – PULL

AHRS 2 circuit breaker(s) [if installed] – PULL

ADC 2 circuit breaker(s) [if installed] – PULL

GAD circuit breaker(s) [if installed] – PULL

AFMS, GARMIN G500 PFD/MFD SYSTEM

FAA APPROVED

190-01102-01 Rev. 9

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