Motorola APX 1000 Detailed Service Manual page 1092

Index-2
conditioning components, transceiver 3-7
power distribution
block diagram 2-2
keep-alive mode 2-2
radio 2-1
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 3-9
block diagram 3-8, 3-9, 3-14, 3-15
UHF1 front-end
detailed theory 3-9
VHF front-end
detailed theory 3-9
reference oscillator Y701, FGU 3-15
reverse power protection, transmitter 3-12
S
schematics
transceiver (RF) board
UHF1 8-29, 8-90, 8-137, 8-179
transceiver board list 8-1
service tools, recommended 4-2
standard supply voltages 4-3
symbols
caution 1-2
danger 1-2
warning 1-2
synthesizer
FGU 3-16
system clocks
troubleshooting 4-3
T
terms and definitions Glossary-1
thermal cutback, transmitter power control 3-12
tools, recommended service 4-2
transceiver
battery connector M101 3-7
block diagram 3-3, 3-4, 3-5, 3-6
board overlays
UHF1 8-55, 8-116, 8-203
interconnections 3-7
parts list
UHF1/700–800 MHz 8-57, 8-118, 8-165, 8-205
power conditioning 3-7
transmitter
antenna switch 3-12
directional coupler U101 3-11
driver amplifier U102 3-11
harmonic filter 3-11
introduction 3-10
power amplifier transistor 3-11
reverse power protection 3-12
transmitter power control
current control mode 3-12
PA offset, control voltage gain scaling 3-13
thermal cutback 3-12
trident IC U702, FGU 3-16
troubleshooting
charts listing 5-1
DC supply failure 5-15
fgu 5-41
handling precautions 4-1
main chart 5-3
power-up failure 5-4
power-up self-check
diagnostics and repair 4-5
errors 4-4
service tools 4-2
standard supply voltages 4-3
system clocks 4-3
VOCON
PA 5-45
Rx RF 5-30
troubleshooting waveforms
12MHz clock 6-4
16.8 MHz clock 6-5
24 MHz clock 6-6
32 kHz clock 6-2
4 MHz clock 6-3
audio ssi, bclk 6-10
audio ssi, red rx 6-8
audio ssi, red tx 6-7
audio ssi, sync 6-9
flash,adv 6-29
flash,cs3 6-30
flash,oe 6-31
flash,rdy 6-32
flash,we 6-33
gcai,gpio0 6-23
gcai,gpio4 6-24
gcai,usb,d- 6-25
gcai,usb,d+ 6-26
i2c,sca 6-19
i2c,sca 5v 6-20
i2c,sda 6-21
list 6-1
one wire 6-22
received baseband signals 6-34
rx clk 6-11
rx da 6-12
rx fsync 6-13
sdram,clk 6-27
sdram,clkx 6-28
spi clk 6-17
spi mosi 6-18
tx ssi,clk 6-14
tx ssi,da 6-15
tx ssi,fsync 6-14
U
UHF1
transceiver
schematics 8-29, 8-90, 8-137, 8-179
Index