Diamond DA20-C1 - Avionics System Failure; Radio System Operative, no Reception; Radio System Operative, Transmitting Not Possible

DA20-C1 Flight Manual Emergency Procedures
Doc # DA202-C1 April 16, 2009 Page 3 - 14
3.3.11. Avionics System Failure
TOTAL AVIONICS FAILURE:
1. Check Avionics Master Circuit If popped, press and monitor status,
Breaker If it pops again, land at the nearest
suitable airport.
2. Check Avionics Master Switch Toggle avionics master switch, if
avionics system remains off-line, pull
avionics master control circuit
breaker. Land at the nearest suitable
airport if operation is not restored.
RADIO SYSTEM OPERATIVE, NO RECEPTION:
1. Microphone Key check for stuck Microphone Key on
transceiver display.
2. Headphones check, deactivate SQUELCH for a
few moments, if SQUELCH not
heard, check headset connection.
RADIO SYSTEM OPERATIVE, TRANSMITTING NOT POSSIBLE:
1. Selected Frequency check if correct
2. Microphone Install handheld mike as follows:
(a) Unplug and remove headset.
(b) Plug handheld mike in.
(c) Turn up speaker volume on
audio panel.
check, if available use different one
(headset)
Problem cannot be resolved: switch transponder (if available) to "COMM FAILURE"
code if required by the situation and permitted by
applicable national regulations.
Revision 24 DOT Approved