Cirrus SR22 Pilot Operating Handbook page 295

C D
IRRUS ESIGN
SR22
The forward headset mics use the remote Push-To-Talk (PTT) switches
located on the top of the associated control yoke grip. The rear headsets do
not have COM transmit capabilities and do not require PTT switches.
Audio to headsets is controlled by the individual audio selector switches on
the audio control panel.
Audio Input Jack
The aircraft contains an audio input jack which can be used to connect
personal entertainment devices into the cabin sound system.
A single 3.5-mm audio input jack (AUDIO INPUT) is provided on the
center console near the convenience outlet.
Distribution of a device connected to this jack is through the MUS 1 selec-
tion on the audio panel.
An additional 3.5-mm jack on the front of the audio panel will also accept
a mobile device input. A device connected to this jack is distributed by
selecting the Entertainment button (shown as a phone and music-note
symbol) on the audio panel. Audio volume can be controlled by the device
itself and can be further refined by the audio panel distribution volume
control.
Avionics Cooling Fans
Three electric fans provide forced ambient-air cooling for the Integrated
Avionics System. A fan located forward of the instrument panel provides
ambient air cooling directly to the Integrated Avionics Units. Two addi-
tional fans blow air directly onto the heat sinks located on the forward sides
of the PFD and MFD.
28 VDC for MFD Fan operation is supplied through the 5-amp AVIONICS
FAN 1 circuit breaker on NON-ESSENTIAL BUS. 28 VDC for PFD and
Integrated Avionics Unit Fan operation is supplied through the 5-amp
AVIONICS FAN 2 circuit breaker on MAIN BUS 2.
P/N 13772-006
Reissue A
S 7: A
ECTION IRPLANE AND
S
YSTEMS
A
VIONICS
7-89