Side-Power SEP 100/185 T Servisní příručka stáhnout pdf (Strana 164)

910 - 8 Page Date: 4. Februar 2011

Pilot´s Operating Handbook

EXTRA 330LX

Section 910

NAT AA83-001 Intercom

The relative volume of the music can be changed from the panel by the knob marked with a musical

note.

Below is a simple chart to aid in understanding audio switching in the NORMAL Operation mode.

The following terms are used:

Active Function being used

Muted Functions that are overridden by the active condition

Idle Functions that are not active, but still available for use

AUTOMATIC FAIL-SAFE

In the event of a power failure, automatic fail-safe operation will be activated. Fail-safe mode routes

the pilot’s phones, mic audio, and mic PTT directly to the COM radio.

During transmit mode, the pilot mic is directly connected to the transceiver mic. Mic bias is provided

by the transceiver, not the AA83-001. The pilot TX keyline is directly connected to the transceiver.

The sidetone audio is directly connected from the audio source to the pilot phones.

During receive mode, receive audio is directly connected from the audio source to the pilot phones.

In both modes, The copilot has no ICS, music, sideline, or receive functions.

N O T E

In Automatic Fail-safe mode, the receive/sidetone levels may require adjustment at the

audio source.

The pilot should confirm that all aspects of Automatic Fail-safe operation are working

before accepting the aircraft into service.

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Side-Power SEP 100/185 T Servisní příručka Strana 164