Motorola ASTRO XTS 5000 Detailed Service Manual page 371

Index-4
transmitter
antenna switch 3-10
directional coupler U101 3-10
driver amplifier U102 3-9
harmonic filter 3-11
introduction 3-8
PCIC (power-control IC) U104 3-11
power amplifier transistor 3-10
power distribution 3-9
power-control IC (PCIC) 3-8
RF detectors 3-11
summing amplifier U106 3-11
troubleshooting
button test 5-21
channel/zone select error 5-20
charts listing 5-1
DC supply failure 5-7
display failure
800 MHz 5-16
VHF 5-13
handling precautions 4-1
keyload failure 5-42
main chart 5-2
power-up failure 5-3
power-up self-check
diagnostics and repair 4-6
errors 4-5
secure hardware failure 5-43
service tools 4-2
signal tracing 4-3
standard supply voltages 4-4
system clocks 4-4
top/side button test 5-22
VCO Tx/Rx unlock 5-23
VOCON
Rx audio 5-28, 5-29
Rx RF 5-31
Tx audio 5-24, 5-26
Tx RF (UHF R1/700-800 MHZ) 5-39
Tx RF (VHF) 5-36
voltage measurement 4-3
volume set error 5-19
troubleshooting waveforms
13 MHz clock 6-2
16.8 MHz buffer input and output 6-3
32.768 kHz clock outputs 6-4
list 6-1
receive baseband interface port (BBP) 6-7
RX serial audio port (SAP) 6-6
SPI B data 6-5
transmit baseband interface port (BBP) 6-8
U
UHF
model chart
non-ruggedized 3-xxii
ruggedized 3-xxiii
UHF R2 2-4
UHF Range 2 3-xxii, 3-xxiii, 3-xxviii
UHF Range 2 Model Chart 3-xxii, 3-xxiii
universal asynchronous receiver/transmitter
(UART) 3-20
universal connector
November 16, 2006
interface circuitry, VOCON board 3-34
J101 3-17
location 3-34
option selects 3-35
universal flex assembly 3-36
universal serial bus (USB) 3-21
USB transceiver, flipper IC 3-29
V
VCO (voltage-controlled oscillator) 3-8
VCO buffer IC (VCOBIC) U200, FGU 3-15
VOCON board
5-volt regulator U505 3-26
audio
components 3-24
power amplifier U503 3-26
pre-amplifier U502 3-26
board overlays
NTN9564B 8-102
NTN9564C 8-116
connector J101 pin-outs 3-34
controller components 3-18
controls and control top flex 3-36
display
module 3-35
module connector P301 3-18
EEPOT potentiometer U509 3-27
encryption connector J701 3-18
ESD protection circuitry 3-32
Flash memory IC U402 3-22
flipper IC U301 3-29
GCAP II IC U501 3-24
interconnections 3-16
interface support components 3-28
keypad
module 3-36
module connector P107 3-18
memory components 3-18
overview 3-16
parts list
NNTN4563A/B 8-132
NNTN4717D 8-161, 8-175
NNTN4819A 8-147
NTN9564B 8-104
NTN9564C 8-118
Patriot IC U401 3-19
power components 3-24
power distribution 2-4
receive audio path 3-40
RF interface connector P201 3-18
schematics 8-95
static RAM (SRAM) IC U403 3-22
system clocks 3-37
transmit audio path 3-38
universal connector interface circuitry 3-34
universal connector J101 3-17
VOCON connector P1 3-3
voltage
measurement, troubleshooting 4-3
multiplier, PCIC 3-12
regulation, GCAP II IC U501 3-24
regulator, PCIC 3-12
regulators, transceiver 2-4
6881094C31-E