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Garmin GMA 340 Audio Panel

Swoda

Active Member
Garmin GMA 340 audio panel, during power on only LED annunciators on right side of panel light up, when pushing test button same thing, only annunciators on right side of panel light up.
Has anyone seen this problem before and know what may be the cause. No longer supported by Garmin and parts no longer available.
 
Thanks for that, I also found this in the maintenance manual and will try it as well.
 

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Looks like it is probably the front panel circuit board, any one have a working GMA 340 for sale or one with different symtoms for parts?
 
I have one

I have a GMA-340 that we removed from our Cherokee and replaced it with a GMA-342 while trying to troubleshoot an electrical problem. Turned out the audio panel wasn't the problem but we kept the 342 anyway. PM me if interested.
 
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