Motorola ASTRO XTL 1500 Detailed Service Manual page 163

5-2
RFPA Power Control—No VGBIAS
No 16.8 MHz Reference Oscillator Frequency
Poor RX Sensitivity or No RX Audio
RX IF—Poor SINAD or No Audio
RX Back-End—Poor SINAD or No Audio
Low or No RX Injection Signal
Low or No TX Injection Signal
No TX Audio
TX or RX VCO Unlock (Fail 001)
RF Power Amplifier (RFPA)—No or Low TX Power Output
RFPA Power Control—No K9.1V
RFPA Power Control—No VGBIAS
RFPA Power Control—No or Low TX RFPA_CNTRL
NOTE: The term µC might be used in some of the following troubleshooting charts;
µC = MCU or microprocesor.
June 15, 2005
Table 5-1. List of Troubleshooting Charts (Continued)
Description
700–800 MHz
Troubleshooting Charts: List of Troubleshooting Charts
Page
5-42
5-43
5-44
5-46
5-47
5-50
5-51
5-52
5-53
5-55
5-60
5-61
5-62
6815854H01-A