Motorola ASTRO XTL 1500 Detailed Service Manual page 450

TX or RX VCO unlock (Fail 001) ................... 5-53
operational error codes .......................................... 4-5
parts replacement and substitution ........................ 4-1
power-up self-check errors ..................................... 4-3
precautions
handling .............................................................. 4-1
heat-related ........................................................ 4-2
procedures
136-174 MHz band
main board ...................................................... 4-5
power amplifier ............................................. 4-33
receiver front-end .......................................... 4-32
380-470 MHz band
main board .................................................... 4-11
power amplifier ............................................. 4-34
receiver front-end .......................................... 4-32
450-520 MHz band
main board .................................................... 4-17
power amplifier ............................................. 4-34
receiver front-end .......................................... 4-33
700-800 MHz band
main board .................................................... 4-22
power amplifier ............................................. 4-34
receiver front-end .......................................... 4-33
signal tracing ...................................................... 4-3
standard bias tables ......................................... 4-28
voltage measurement procedures ...................... 4-3
rigid circuit boards .................................................. 4-2
schematics
main board
700-800 MHz (HUF4017A) ......................... 7-147
6815854H01-A
listing .............................................................. 7-1
UHF Range 1 (HUE4039A) .......................... 7-65
UHF Range 2 (HUE4040A) ........................ 7-106
VHF (HUD4022A) ......................................... 7-26
table ....................................................................... 5-3
test points ............................................................ 5-10
waveforms ............................................................. 6-2
U
UHF Range 1 radio specifications ............................ xxxi
UHF Range 2 radio specifications ............................xxxii
V
VCO (voltage-controlled oscillator assembly)
out-of-lock condition ............................................... 4-7
vehicle interface ports
description ............................................................. 2-4
VHF radio specifications ............................................ xxx
voltage-controlled oscillator (VCO) assembly
out-of-lock condition ............................................... 4-7
W
warranty information ................................................... xxi
waveforms
listing ...................................................................... 6-1
troubleshooting ...................................................... 6-2
Index-ix
June 15, 2005