Garmin G1000 Maintenance Manual page 77

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COM Bleedover
Speaker Cuts Out
MIC Audio Heard in Speaker
G1000 System Maintenance Manual
190-00907-00
•
Verify on the GMA CONFIGURATION page that "MUTE AUDIO
ON TX" has a green box. Due to the closeness of the COM
antennas and high power of the COM transceivers, normal Split
COM operation is not approved. If the box is black, highlight
"MUTE AUDIO ON TX" with the cursor and press the ENT key to
turn the box green.
•
Reduce volume level of the item that caused the speaker to cut
out when turned up. A speaker protection circuit disables the
speaker output if the volume is too high. If the volume is not
sufficient, replace aircraft cabin speaker, reference the OEM
Maintenance Manual.
•
Reduce ICS Volume.
Page 5-41
Rev. B