Northern-airborne-technology NTA01-001 Manuel d'utilisateur télécharger pdf (Page 13)

SM71 Rev. 4.10 NTA01-001 Motorola Series Radio Adapter Manual

2.3.5 Post-Installation Checks

2.3.5.1 Voltage/Resistance Checks

Do not attach the NTA01-001 until the following conditions are met.

Check the following:

a) P1 pins <1> and <2> for +28 Vdc relative to ground.

b) P1 pins <3>, <4> and <21> for continuity to ground.

2.3.5.2 Power On Checks

a) Install the NTA01-001 and power up the ship’s systems. Turn on the radios and

accessories required for the system.

b) Check for correct radio audio and adjust for acceptable level.

2.3.5.3 Performance Checks

If any preset requires adjustment, be sure this is carried out before the aircraft leaves,

and that the unit and its mating connector are secured before departure. Make all

required log book entries, electrical load, weight and balance amendments and other

paperwork as required by your local regulatory agency.

Upon satisfactory completion of all performance checks, make the required log

entries and complete the necessary Regulatory Agency paperwork before

releasing the aircraft for service.

2.3.6 Adjustments

The unit is shipped from the factory with all internal adjustments set to the normal test

levels. Once installed in the aircraft, it may be desirable to change some of these

settings to best suit the local operating environment.

MIC LEVEL SIDETONE RX LEVEL

The internal adjustments that can be varied can be found on the top of the rear

subassembly after removing the cover of the unit, and are mic level, sidetone, and RX

level, as shown above.

These levels can be adjusted using the rotary pots. Rotating the pots clockwise

increases the levels, and counterclockwise decreases the levels.

Feb 6, 2006 Page 2-3

ENG-FORM: 805-0106.DOT

CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.

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Northern-airborne-technology NTA01-001 Manuel d'utilisateur Page 13