AV-17
Operating Instructions
General Description:
The AV-17 is a Voice Annunciator packaged in a 4.1" by 2.6" by 1.7" Control Box tie wrapped under the
instrument panel. Also, there is a small 1" x 1" Control Panel mounted on the aircraft instrument panel. The
Control Panel allows you to turn the Voice Annunciator on or off. Also, it allows you to acknowledge and thereby
deactivate any active alarm for either 1 minute or 10 minutes.
The AV-17 is connected to your headset through the Audio Panel or Intercom or it may be connected directly
to your headset. The AV-17 has eighteen voice warnings and seventeen control lines. Additionally, a Check Bus
Voltage warning is built into each AV-17. Most of its seventeen control lines receive signals from any one or
more of Electronics Internationals instruments which feature a warning light. However, other signals may be
received from any warning device that drives a horn or light. It is not necessary to activate all eighteen of the AV-
17s warnings. Voice alarms can be activated as Electronics International instruments are added to your panel.
The AV-17 ends the need to constantly scan instruments. It also eliminates concern about missing an alarm
at a critical moment. The instant a monitored alarm occurs, the Voice Annunciator will chime in the headset and a
pleasant female voice will announce a phrase, such as: Check Oil Pressure, or Check Altitude, etc.
Operating Features:
A. Task List:
The AV-17 has 17 Control Lines and one internal control line. When one of these lines is pulled low
(grounded), the appropriate voice warning will be heard in the headset immediately.
If two or more alarms are activated, the alarms are placed on the AV-17's "task list" and are announced one at
a time with a one-second delay between alarms. After the last alarm on the task list is announced there is a five-
second delay and the alarms are once again announced in order. Activated alarms are prioritized and then an-
nounced in the following order:
1. Air Speed.
3
2. Landing Gear.
3. Oil Pressure and Temperature.
4. Oil Pressure.
5. Fuel Level and Pressure.
6. Fuel Level.
7. Turbine Inlet Temperature.
8. RPM.
9. Manifold Pressure.
10. Cylinder Head Temperature.
11. Exhaust Gas Temperature.
12. Engine Analyzer.
13. Cowl Air Temperature.
14. Bus Voltage.
15. Altitude and Timer.
16. Gyro Vacuum.
17. Timer.
18. Chime (3 beeps).