Motorola ASTRO XTL 5000 Basic Service Manual page 197

front-end .......................................................... 3-26
IF circuitry ........................................................ 3-26
mixer ................................................................ 3-26
VHF
front-end .......................................................... 3-25
IF circuitry ........................................................ 3-25
mixer ................................................................ 3-25
recycling information, radio .......................................B-1
reference oscillator alignment ................................... 6-8
replacement parts, ordering ......................................A-1
replacement, chassis pad ....................................... 8-41
RF exposure compliance information ...........................ii
RF PA
circuit protection .................................................. 3-24
DC interconnect .................................................. 3-24
gain stages .......................................................... 3-24
heatsinking precautions ......................................... 2-3
power control ....................................................... 3-24
RF test mode ............................................................ 5-3
Rx front-end filter alignment .................................... 6-18
S
screen, tuner
main menu ............................................................ 6-2
radio information ................................................... 6-3
transmit current limit alignment ........................... 6-14
secure
dispatch operation ................................................. 7-2
emergency operation ............................................ 7-2
interface boards .................................................... 7-2
status annunciator ................................................. 7-2
service aids, recommended ...................................... 4-2
signaling types .......................................................... 5-4
specifications, radio
700-800 MHz ......................................................... lxvi
UHF Range 1 ........................................................ lxiv
UHF Range 2 ......................................................... lxv
VHF ....................................................................... lxiii
SRAM IC ................................................................... 3-4
T
test
bit error rate (BER) .............................................. 6-20
equipment, recommended .................................... 4-1
frequencies ............................................................ 5-3
setup, performance checks ................................... 5-1
transmitter test pattern ........................................ 6-21
test mode
control-head ................................................... 5-4, 5-5
displays ................................................................. 5-2
performance checks .............................................. 5-1
RF ......................................................................... 5-3
theory of operation
700-800 MHz
frequency generation unit (FGU) ..................... 3-30
receiver
component blocks ........................................ 3-27
front-end ....................................................... 3-27
IF circuitry .................................................... 3-27
mixer ............................................................ 3-27
analog mode ....................................................... 3-23
6871769L01-A
ASTRO mode ...................................................... 3-23
control head
vehicle interface port
dash-mount .................................................. 3-16
controller section ................................................... 3-2
daughtercard module
FLASH IC .......................................................... 3-4
microprocessor .................................................. 3-4
SRAM IC ........................................................... 3-4
output network section components ................... 3-24
overview ................................................................ 3-1
radio-frequency power amplifier
circuit protection .............................................. 3-24
components ..................................................... 3-24
DC interconnect ............................................... 3-24
gain stages ...................................................... 3-24
power control ................................................... 3-24
surrounding controller region
components ....................................................... 3-4
emergency ......................................................... 3-5
front and rear connectors .................................. 3-8
voltage regulation .............................................. 3-5
UHF
frequency generation unit (FGU) ..................... 3-29
receiver
front-end ...................................................... 3-26
IF circuitry .................................................... 3-26
mixer ............................................................ 3-26
VHF
frequency generation unit (FGU) ..................... 3-28
receiver
front-end ...................................................... 3-25
IF circuitry .................................................... 3-25
mixer ............................................................ 3-25
tools required, disassembly/reassembly ................... 8-1
tools, recommended ................................................. 4-2
torque values, fastener ........................................... 8-44
trademark information ................................................... ii
transmit current limit alignment screen ................... 6-14
transmitter
performance checks .............................................. 5-7
troubleshooting ................................................... 9-18
transmitter test pattern test ..................................... 6-21
troubleshooting
audio PA Out bias ............................................... 9-15
I/O disclaimer ...................................................... 9-14
introduction ........................................................... 9-1
J2 accessory connector ........................................ 9-3
microphone bias .................................................. 9-14
operational error codes ....................................... 9-17
power-up error codes .......................................... 9-16
receiver ............................................................... 9-19
replacing boards ................................................. 9-15
transmitter ........................................................... 9-18
trunked multikey operation ....................................... 7-3
tuner
main menu screen ................................................ 6-2
radio alignment introduction .................................. 6-1
screen
main menu ......................................................... 6-2
radio information ................................................ 6-3
transmit current limit alignment ....................... 6-14
Tx current limit alignment ....................................... 6-13
Tx deviation balance (compensation) alignment .... 6-15
Tx deviation limit alignment .................................... 6-17
Index-iii
October 30, 2006