May 25, 2005 6881096C74-B
5-2 Troubleshooting Charts: List of Troubleshooting Charts
NOTE: The term µC might be used in some of the following troubleshooting charts;
µC = MCU or microprocesor.
RFPA Power Control—No VGBIAS 5-45
700–800 MHz
No 16.8 MHz Reference Oscillator Frequency 5-46
Poor RX Sensitivity or No RX Audio 5-47
RX IF—Poor SINAD or No Audio 5-49
RX Back-End—Poor SINAD or No Audio 5-50
Low or No RX Injection Signal 5-53
Low or No TX Injection Signal 5-54
No TX Audio 5-55
TX or RX VCO Unlock (Fail 001) 5-56
RF Power Amplifier (RFPA)—No or Low TX Power Output 5-58
RFPA Power Control—No K9.1V 5-63
RFPA Power Control—No VGBIAS 5-64
RFPA Power Control—No or Low TX RFPA_CNTRL 5-65
Table 5-1. List of Troubleshooting Charts (Continued)
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