Garmin SL30 Pilot's Manual page 40

Appendix
34
Problem
SL30 does not power on
No Nav audio
Nav audio in Com
SL30 does not transmit
Sidetone level is too low or
too high
Possible Cause
No power to the SL30
Faulty electrical wiring or
connection
Output disabled or set to a
low level
Mixed with Com feature
Weather channel is selected
No power to Com
Mic key connection
Wrong type of headsets, or
level needs adjustment
Action
Check power connections,
breakers, and main avionics
switch
Contact your dealer to per-
form electrical system test
Check System page, Nav op-
tions, Nav Audio Level
Check System page, Nav
Options, Mix Nav Audio with
Com
Select a different frequency,
transmit on Weather channel
not allowed
Check power connections
Check Mic key input connec-
tion
Check System page, Nav Op-
tions, Sidetone level