TCAD Fail message on GTX345

            1st verify that the TAS is a 9900BX or TAS6xx
            The 9900B units will not work.  Ever.
            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 code. 
            What 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.
            Another HyperTerminal option that is useful is instead of entering “CVI” or "NewCVI" enter "newric" and Com ports can be checked via option "C".
            Updated: 14 Mar 2018 07:49 AM
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