LBI-33057
3
DESCRIPTION
This manual outlines service procedures for the Aegis
M-PA UHF portable radios. Information includes radio dis-
assembly and reassembly procedures, RF alignment and RF
component-level troubleshooting steps. Information is also
included for tracking and channel data, surface mounted
component replacement, weatherproofing procedures, RF
retuning procedures, and service data on the batteries.
Module and integrated
circuit data sheets for the RF Board
components are listed at the end of this manual.
In order to perform many of the following alignments,
tests and troubleshooting checks, it will be necessary to
(re)program the radio. Further programming information
can be found in the Programming Manual and software.
See LBI-39157 for service information on the
Control Board. See LBI-38834 for service infor-
mation on the Front Cover Assembly.
TEST EQUIPMENT
The following is a list of test equipment which may be
required to troubleshoot and/or align the portable radio.
GENERAL.
•
RF Signal Generator
•
RF Wattmeter with 10-Watt capability
•
Audio Distortion Analyzer with Vu Meter
•
Oscilloscope with x1 and x10 Probes
•
Audio Oscillator
•
Frequency Counter
•
Modulation Analyzer
•
SINAD Meter
•
Regulated DC Power Supply, 5 - 9 Vdc adjustable,
5 amperes maximum
•
Digital Muitimeter
SPECIALIZED
•
K19/A4WX01542
RF Test Cable (UDC
mount)
•
K19/A4WX01543
Battery Eliminator
("Dummy Battery")
•
K19/A4WX01544
RF/Logic Extender Cable
•
K19/A4WX01604
Discharge Analyzer (checks
battery pack capacity and
battery chargers)
•
LBI-38518
Front Cover Test Accessory
Kit Manual
•
SPK9010
Front Cover Test Accessory
Kit:
•
19D902562P5
Front Cover Test Cable
•
19D902562P1
LCD Extender Plate &
Clamp
•
19D902562P2
LCD Test Cable
•
19D902562P6
Test Program Diskette
•
SPK9011
Front Cover Test Accessory
Kit:
19D902562P3
Adapter Board
19D902562P4
Control Board Extender
•
ST3559
RF Antenna Adapter (top
jack to BNC female)
•
TQ-0609
Test Box (simulates all exter-
nal UDC options)
19B219079P1
Alignment Tool, 0.1" slotted
(metal) tips
19B801640P1
Alignment Tool, 0.1" slotted
tips.
In addition to the above listed equipment, Aegis opera-
tional tests will require the appropriate test equipment and
a second Aegis portable or mobile radio. Also, radios will
require access to a local trunked site and a second portable
or mobile (trunked) radio to test trunked mode operation.
NOTE
