July 21, 20178 yr Turning on the instrument power using the three switches with the red bar turns on the noisy whine. Is that normal? And the red indicator light is always on, indicating that there is no power to the instruments. Turning the AFE on or off did not affect this. George Joachim OERK
July 21, 20178 yr Commercial Member Please sign with your real name as per forum instructions. The switches with the red bar is the Emergency Instrument Power and Inst. Lighting Switch this is to be used in emergency. The whine is normal with this switch. I would suggest to go over the POH or check my brief tutorial video below Chris Makris PLEASE NOTE PMDG HAS DEPARTED AVSIM You can find us at http://forum.pmdg.com
July 21, 20178 yr Commercial Member 2 hours ago, Debowing said: Turning on the instrument power using the three switches with the red bar turns on the noisy whine. Is that normal? And the red indicator light is always on, indicating that there is no power to the instruments. Turning the AFE on or off did not affect this. Welcome to the forum. Full names - first and last - are required in posts here. See the above post for the answer to your question. Kyle Rodgers
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