Garmin APOLLO GX SERIES, Service Manual

Page: 39 / 166

© 2004 Garmin AT GX Service Manual 7-1
Chapter 7. Return to Service Procedures
Introduction
Purpose
The tests described in this chapter are designed to aid service personnel in locating inoperative areas
within the product. They also serve a complete return to service procedure after any field repair work
is completed. Test specifications for Apollo GX50, GX55, GX60 and GX65 products are defined.
Scope
These test procedures affect the GX50, GX55, GX60 and GX65 in the following manner:
•
Common Tests are required for all GX products.
•
NAV Return to Service is required for all the GX products.
•
Comm Return to Service is required for the GX60 and GX65.
•
Final Unit Checkout is required for all GX products.
Software verification is not required because the software was tested during development. However,
you must verify that the proper version of software is installed. The hardware must be checked and
verified on each unit.
References
EIA Standard # EIA-625
UPS Aviation Technologies installation manual
TST 10 Test Station
Acronyms and Definitions
Acronym Definition
A Amperes (amps)
AC Alternating Current
A/D analog to digital converter
AF Audio Frequency
AFGen Audio Frequency Generator
AM Amplitude Modulation
ANT antenna
APPR approach
BNC
a common RF connector that has a quick bayonet mount
BPF bandpass filter
C Celsius (temperature)
CAL calibration
CDI Course
Deviation Indicator
Coax coaxial cable
COMM, or Comm communication
CONFIG configuration
D/A
digital to analog converter
dB decibel (a logarithmic expression of ratios)