Michaelthewannabe said
Flick it off and on, quickly.
If that doesn't work, switch it off, wait a few seconds, then turn it back on.
If that doesn't work, unplug the headset and plug it back in.
If that doesn't work, do the same but with a pause before re-plugging.
If that doesn't work... I'll be confused (not an uncommon state, I might add).
good luck!
Me again - Bad Wx stopped play over the last couple of weeks, so I went up again yesterday.
My partner took the headset for a trip with someone before my lesson, just under an hour, and the headset was fine the whole time.
I went up for 1 1/4 hours and I got the same high pitched squeal as before but at about 1 hour 5 mins (Oh good - 20-30 minutes more reprieve!!).
I turned it on and off quickly, twice, with no effect and then turned it off, waited 3 seconds and back on again and the noise was gone -
Option 2 on your list.
Could you write me an "engineering" lingo explanation of what you said it could be re: the oscillation, so that I can e-mail Pilot who can give it to their engineer. Then you can use as much technical language as you like because you won't be trying to explain it to a totally NON electrical engineering pleb.
PM me if you don't want to post.
Also.....As I got 20-30 minutes more time before the squeal this time - could electronic circuits need to be run in?? i.e. warmed up a few times.??
Thanks
MG