Motorola APX 3000 Detailed Service Manual page 470

Index-2
parts, ordering replacement A-1
power
amplifier transistor 3-11
conditioning components, transceiver 3-6
power control
detailed theory 3-12
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 3-6, 3-7, 3-14, 3-15
UHF1 front-end
detailed theory 3-8
VHF front-end
detailed theory 3-8
reference oscillator Y701, FGU 3-15
replacement parts, ordering A-1
reverse power protection, transmitter 3-12
S
schematics
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 3-13
tools, recommended service 4-2
transceiver
battery connector M101 3-5
block diagram 3-3, 3-4, 3-5
interconnections 3-5
parts list
UHF1/700–800 MHz 8-34, 8-91, 8-148, 8-200
power conditioning 3-6
transmitter
antenna switch 3-12
directional coupler U101 3-11
driver amplifier U102 3-10
harmonic filter 3-11
introduction 3-9
power amplifier transistor 3-11
power control 3-12
reverse power protection 3-12
transmitter power control
current control mode 3-13
PA offset, control voltage gain scaling 3-13
thermal cutback 3-13
voltage control mode 3-12
trident IC U702, FGU 3-16
troubleshooting
bluetooth,CW on spectrum analyzer 6-57
charts listing 5-1
DC supply failure 5-15
fgu 5-37
handling precautions 4-1
keyload failure 5-25
main chart 5-3
power-up failure 5-4
power-up self-check
diagnostics and repair 4-5
errors 4-4
secure hardware failure 5-26
service tools 4-2
standard supply voltages 4-3
system clocks 4-3
VOCON
PA 5-50
Rx RF 5-27
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, 9-7
audio ssi, red tx 6-7
audio ssi, sync 6-9
bluetooth,CW on spectrum analyzer 6-57
bluetooth,startup timing difference,TP10 to TP13 and
time statistics 6-55
bluetooth,startup timing difference,TP11 to TP13 and
time statistics 6-56
bluetooth,startup timing difference,TP13 to TP16 and
time statistics 6-54
bluetooth,startup timing sequence,TP4 to TP16 and
time statistics 6-44
bluetooth,startup timing sequence,TP4 to TP5 and
time statistics 6-45
bluetooth,startup timing sequence,TP5 to TP16 and
voltage statistics 6-43
bluetooth,startup timing sequence,TP9 to TP16 6-42
bluetooth,startup timing sequence,Vmax of TP10 and
voltage statistics 6-50
bluetooth,startup timing sequence,Vmax of TP11 and
voltage statistics 6-53
bluetooth,startup timing sequence,Vmax of TP13 and
voltage statistics 6-52
bluetooth,startup timing sequence,Vmax of TP16 6-41
bluetooth,startup timing sequence,Vmax of TP16 and
voltage statistics 6-51
bluetooth,startup timing sequence,Vmax of TP4 and
time statistics 6-47
Index