Northern Airborne Technology 802 - Manual (Page 22)

802-009 Switch Panel
SM802 Installation and Operation Manual
Section 3 Rev: 1.00 Issue 4 Page 3-2
3.3 Controls and Indicators
3.3.1 Master Volume, Transceiver and Receiver Controls
These controls are alternate action press-on/press-off rotary switches that control various
functions of the Model 700. All knobs, except PHONE and PASS, control both switching
and volume control of the respective audio.
When the knob is in the OUT position, the relevant function is selected (on), and the knob is illuminated to
indicate that the control has been selected.
When the knob is in the IN position, the relevant function is deselected (off), and the knob is not
illuminated.
The rotary function of the switch adjusts the relevant volume.
The different functions controlled by the press-on/press-off (switch) and rotary portions of the control will
be outlined in the appropriate sections below.
The PHONE and PASS volume control knobs remain in the OUT and lighted position at all times.
3.3.1.1 Master Volume Controls
The Master Volume control functions are outlined in Table 1 below.
Control Name Switch Function Rotary Function
INPH (Interphone) Selects the INPH Hot switch
function Interphone volume control
PHONE No function Headphone volume control
SPKR (Speaker) Speaker switch function volume Speaker volume control
PASS No function PA amplifier output volume
Table 1
Master Volume Control Functions
3.3.1.2 Transceiver Controls
The receiver and sidetone functions of the VHF1, VHF2, HF1 and HF2 transceivers are selected and
deselected using the press-on/press-off functions of the appropriate controls and the rotary function
adjusts the respective volumes.
3.3.1.3 Receiver Controls
The receiver controls - NAV1, NAV2, ADF1, ADF2, DME1, DME2, MKR1 and MKR2 - function in the
same way as the transceiver controls (see section 3.3.1.2).
ENG-FORM: 806-0112.DOT
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