6 of 10
P/N 11934-S01
Section 9
Cirrus Design
Supplements
SR20
The Audio Control Panel has provisions for up to two separate
personal entertainment input (music) devices. These devices are
plugged into the AUDIO INPUT jacks in the center console jack
panels. Music1 is connected at the AUDIO INPUT jack near the
convenience outlet. Music2 is connected to the jack on the aft console.
Music1 is soft-muted during all airplane radio activity. Music1 and
Music2 have characteristics affected by the active ICS isolation mode.
• Pressing the PILOT ICS Isolation button isolates the pilot from
the copilot and passengers. Music1 is available to copilot and
passengers.
• Pressing the CREW ICS Isolation button isolates the crew from
the passengers and allows the pilot and copilot to listen to
Music1 and the passengers to listen to Music2. Radio activity,
MKR activity, and pilot or copilot ICS activity will mute Music1.
Music2 is not muted.
• When both the PILOT and CREW ICS Isolation mode are
not
selected, Music1 is available to crew and passengers. Radio
activity and MKR activity will mute Music1.
Intercom
Intercom controls are located towards the left side of the Audio Control
Panel. The controls consist of a Volume control for the pilot and
copilot, a Squelch control for all occupants, and an Intercom Mode
Selector switch.
Volume & Squelch Control
ICS volume and voice operated relay (VOX) squelch control is
controlled through the left (PILOT) and right (COPILOT) control knobs
on the Audio Control Panel Control. Knob control is as follows:
•
Left Inner Knob
– On/Off power control and pilot ICS volume.
Full CCW is ‘OFF’ position (click).
•
Left Outer Knob
– Pilot ICS mic VOX level. CW rotation
increases the amount of mic audio (VOX level) required to
break squelch. Full CCW is the ‘hot mic’ position.
•
Right Inner Knob
– When pushed in, rotation controls copilot
ICS volume. When out, rotation controls passenger ICS
volume.
Revision 1: 07-18-05
