Index-2 Index
K
keep-alive mode 2-2
L
loop filter, FGU 3-19
M
manual
notations 1-2
mode, keep-alive 2-2
modulation, FGU 3-19
N
notations in manual 1-2
O
ordering replacement parts A-1
oscillator
reference Y701, FGU 3-18
P
PA offset, control voltage gain scaling, transmitter power
control 3-16
parts list
controller board
HLN5960B 8-152
HLN5979B 8-143
expansion board 8-165, 8-166
transceiver (RF) board
700–800 MHz 8-95
UHF1 8-39, 8-54
UHF2 8-75
VHF 8-17
parts, ordering replacement A-1
port expander, FGU 3-20
power
amplifier transistor 3-13
conditioning components, transceiver 3-7
power control
detailed theory 3-14
power distribution
block diagram 2-2
keep-alive mode 2-2
radio 2-1
transceiver board 2-2
VOCON board 2-3
power-up self-check
diagnostics and repair 4-5
errors 4-4
R
radio
keep-alive mode 2-2
power distribution 2-1
receiver
analog to digital converter
detailed theory 3-10
block diagram 3-7, 3-8
detailed theory
700/800 front-end 3-10
UHF1 front-end 3-9
UHF2 front-end 3-9
VHF front-end 3-9
reference oscillator Y701, FGU 3-18
replacement parts, ordering A-1
reverse power protection, transmitter 3-14
S
schematics
controller board 8-129
expansion board 8-2
transceiver (RF) board 8-157
700–800 8-81
UHF1 8-25
UHF2 8-61
VHF 8-3
transceiver board list 8-1
VOCON board list 8-2
serial EEPROM 3-7
service tools, recommended 4-2
standard supply voltages 4-3
symbols
caution 1-2
danger 1-2
warning 1-2
synthesizer
block diagram 3-17, 3-18
FGU 3-18
system clocks
troubleshooting 4-3
T
terms and definitions Glossary-1
thermal cutback, transmitter power control 3-15
tools, recommended service 4-2
transceiver
antenna port J101 3-7
battery connector M101 3-5
block diagram 3-3, 3-4
board overlays
700–800 MHz 8-93
UHF1 8-37, 8-52
UHF2 8-73
VHF 8-15
detailed theory 3-3
interconnections 3-5
parts list
700–800 MHz 8-95
UHF1 8-39, 8-54
UHF2 8-75
VHF 8-17
power conditioning 3-7
power distribution diagram 2-2
schematics 8-157
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