•GTX345 turns the TAS audio volume
to 0, and will not let it be adjusted while the GTX345 is powered on.
This is part of the
issue. If the audio is not connected (per Garmin) or the audio volume is
stuck at 0 (per Garmin) there is currently no easy way to determine the fault
you can do is scab
in an aux audio jack connected to the audio +/- coming off the J1
connector. Then using an aux cable run to a stereo one of the techs has on his/her toolbox, and
you’ll be able to get the audio
callout, but only after turning off the GTX345 (by pulling the CB) which allowed us to
set the volume to max via the CVI menu.
option that is useful is instead of entering “CVI” or "NewCVI"
enter "newric" and Com ports
can be checked via option "C".