SKY899
Installation Manual
Page 3-10 - Installation Checkout
009-11900-001
July 18, 2013
Revision F
NOTE
Audio levels can be adjusted via the service menu and at the aircraft audio
panel. There is no internal audio adjustment.
b. Reset the audio level via the service menu. (See paragraph 4.4.1.3. Select test from the audio
level menu to hear a "traffic traffic" aural message.)
c. Check audio connection to the TRC:
1) 600-ohm audio systems should be connected to P1-89 (AUDIO_H).
2) 150-ohm audio systems should be connected to P1-90 (AUDIO_L).
3) Audio common is connected to P1-91 (AUDIO_C).
NOTE
Audio output from the TRC is transformer isolated.
7.
If SKY899 fails the self-test:
a. The "SKY899 Failed" screen with an error message indicating the type of failure will be
displayed.
b. The voice message, "SKYWATCH SYSTEM TEST FAILED", will be enunciated over the
cockpit audio system.
c. To re-test, press TEST button soft-key (2).
d. Refer to the fault isolation procedures in Chapter 4.
The document reference is online, please check the correspondence between the online documentation and the printed version.
