Northern Airborne Technology 245 - Manual (Page 15)

SM245 Rev. 4.10 Model 245 Speaker Amplifier Manual
Jun 23, 2005 Page 2-3
ENG-FORM: 805-0108.DOT
Amendment # 1 Jul 19, 2006
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.
2.3.5 Post-Installation 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.
2.3.5.1 Voltage/resistance
checks
Do not attach the Model 245 until the following conditions are met.
Check the following:
a) Check
pin for +28 Vdc relative to ground.
b) Check
pin for continuity to ground - less than 0.5 Ω (power ground).
c)
Check inputs and outputs for correct orientation.
2.3.5.2 Power On checks
Install the Model 245 and power up the aircraft’s systems. Verify normal operation of all
functions.
2.3.6
Log Entries
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.
2.4 Continued Airworthiness
Maintenance of the Model 245 is ‘on condition’ only. Periodic maintenance of this
product is not required.
2.5 Accessories Required But Not Supplied
Electrical connections to the amplifier are made via a 7-pin circular connector. The
mating connector is Amphenol part number MS3106F-16S-1S or equivalent.