Motorola ASTRO SPECTRA Service Manual

Index-ii
February 3, 2003 6881076C20-E
ASTRO Digital Spectra Plus .................................. 4-7
equipment .............................................................4-5
FLASHport technology .............................................. 1-2
frequencies, test .......................................................5-4
front-end receiver theory of operation ....................... 3-5
front-panel access test-mode displays ...................... 5-2
H
handling precautions .................................................2-2
I
ignition sense circuits, control head .......................... 3-4
indicators, control head ............................................. 3-3
interconnect board replacement ...............................8-6
K
key, erasing encryption ............................................. 7-3
key-variable loader (KVL) .........................................7-2
L
limitations, remote W3 Y cable .................................4-6
loading encryption keys ............................................7-2
M
maintenance
cleaning .................................................................2-1
inspection .............................................................. 2-1
preventive .............................................................. 2-1
reference oscillator ................................................2-1
manual
notations ................................................................ 1-1
revisions ....................................................................ii
mode
analog operation ................................................... 3-2
ASTRO operation .................................................. 3-2
control-head test ................................................... 5-5
performance checks test .......................................5-2
RF test ...................................................................5-3
model chart
800MHz
Spectra ............................................................ xxvii
Spectra Plus ................................................... xxxiv
motorcycle 15 Watt (ranges 1 and 2) ....................xvii
motorcycle 15 Watt (ranges 3 and 3.5) ................ xviii
UHF 10-25 Watt .................................................... xxii
UHF 20-40 Watt ............................................xxiii, xxx
UHF 50-110 Watt .......................................... xxv, xxxii
VHF 10-25 Watt ....................................xix, xxviii, xxix
VHF 10-25/50-110 Watt ...........................................xx
model numbering scheme ..........................................xvi
multikey operation
conventional ........................................................7-10
introduction .......................................................... 7-10
trunked ................................................................ 7-10
N
notations
manual .................................................................. 1-1
warning, caution, and danger ................................ 1-1
O
operation
advanced secure ................................................. 7-10
analog mode ......................................................... 3-2
ASTRO mode ........................................................ 3-2
command board theory ......................................... 3-6
control head .......................................................... 3-2
conventional multikey .......................................... 7-10
front-end receiver assembly theory ....................... 3-5
multikey ............................................................... 7-10
power supply theory .............................................. 3-4
RF board theory ............................................. 3-5, 3-7
trunked multikey .................................................. 7-10
VOCON board theory ............................................ 3-7
voltage-controlled oscillator theory ....................... 3-6
operational error codes ............................................. 9-4
ordering replacement parts .......................................A-1
over-the-air rekeying ................................................. 7-6
overview, basic theory .............................................. 3-1
P
parts list
high-power (50-110W) ..........................................11-8
large pushbuttons ..............................................11-10
low- and mid-power interconnect board ...............11-9
low-power (15W) ..................................................11-6
mid-power (20-40/25-50/35W) .............................11-7
Model W3 .............................................................11-2
Model W4 .............................................................11-3
Model W5 .............................................................11-4
Model W7 .............................................................11-4
Model W9 .............................................................11-5
motorcycle interconnect board .............................11-9
small pushbuttons ..............................................11-10
parts, ordering replacement ......................................A-1
performance checks
overview ................................................................ 5-1
receiver ................................................................. 5-6
signaling types ...................................................... 5-5
test
frequencies ........................................................ 5-4
mode ................................................................. 5-2
setup .................................................................. 5-1
transmitter ............................................................. 5-7
power amplifier
board replacement ....................................... 8-7, 8-14
reassembly .......................................................... 8-16
theory of operation ................................................ 3-4
power supplies, control head .................................... 3-4
power-up error codes ............................................... 9-1
preventive maintenance, periodic ............................. 2-1
product safety information ............................................ii
programming equipment, field .................................. 4-5
pushbuttons
large ...................................................................11-10

Motorola ASTRO SPECTRA Specifications

General

Frequency Range	136-174 MHz, 403-470 MHz
Number of Channels	Up to 255
Channel Spacing	12.5 kHz, 20 kHz, 25 kHz
Modulation	FM
Operating Temperature	-22°F to +140°F (-30°C to +60°C)