Index
Index
A
amplifier
driver U102 3-10
power transistor 3-11
antenna switch, transmitter 3-12
B
battery
connector M101 3-5
types and capacities 2-1
block diagram
overall 3-2
power distribution 2-2
receiver 3-6, 3-7, 3-14, 3-15
transceiver 3-3, 3-4, 3-5
board overlays
transceiver list 8-1
buffer and VCO, FGU 3-17
C
caution symbol meaning 1-2
charts, troubleshooting
DC supply failure 5-15
fgu
failure 5-37
keyload failure 5-25
list 5-1
main 5-3
power-up failure 5-4
secure hardware failure 5-26
VOCON
PA 5-50
Rx RF 5-27
clocks, FGU 3-16
components
block diagram 3-2
current control mode, transmitter power control 3-13
D
danger symbol meaning 1-2
detailed theory
Controller 3-21
gps 3-44
directional coupler U101, transmitter 3-11
driver amplifier U102 3-10
E
errors, power-up self-check 4-4
F
frequency generator unit (FGU)
buffer and VCO 3-17
clocks 3-16
loop filter 3-16
modulation 3-16
reference oscillator Y701 3-15
synthesizer 3-16
trident IC U702 3-16
voltage multiplier and superfilter 3-16
G
glossary Glossary-1
H
handling precautions, troubleshooting 4-1
harmonic filter, transmitter 3-11
I
IC
directional coupler U101 3-11
driver amplifier U102 3-10
interconnections
transceiver 3-5
K
keep-alive mode 2-2
L
loop filter, FGU 3-16
M
manual
notations 1-2
mode, keep-alive 2-2
modulation, FGU 3-16
N
notations in manual 1-2
O
ordering replacement parts A-1
oscillator
reference Y701, FGU 3-15
P
PA offset, control voltage gain scaling, transmitter power
control 3-13
parts list
transceiver (RF) board
UHF1/700–800 MHz 8-34, 8-91, 8-148, 8-200
Summary of Contents for Astro APX 3000
Page 1: ...APXTM TWO WAY RADIOS APX 3000 DETAILED SERVICE MANUAL ...
Page 2: ......
Page 4: ...Notes ...
Page 6: ...vi Document History Notes ...
Page 10: ...x Table of Contents Notes ...
Page 12: ...xii List of Tables Notes ...
Page 18: ...xviii List of Figures Notes ...
Page 22: ...xxii CommercialWarranty Notes ...
Page 46: ...3 20 Theory of Operation Main Board Notes ...
Page 84: ...3 58 Theory of Operation Bluetooth Notes ...
Page 208: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 222: ...7 14 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 282: ...8 60 Schematics Boards Overlays and Parts Lists Main Board Block UHF1 84012513001_A Notes ...
Page 390: ...8 168 Schematics Boards Overlays and Parts Lists Main Board Block VHF 84012512001_A Notes ...
Page 456: ...9 8 Debugging Fixture Powering up Covert Board Notes ...
Page 468: ...Glossary 10 Glossary Notes ...
Page 472: ...Index 4 Index Notes ...
Page 473: ......