User Guide

CCS Technical Documentation Troubleshooting - RF

RH-48

Figure 2: RH-48 RF components

Phone Cannot Make a Call

Verify the following if the phone cannot make a call:

• The phone is in normal mode (i.e., the phone is searching for a signal, net server is on).

• The Preferred Roaming List (PRL) is loaded into the phone.

• The phone is tuned and has passed tuning. (Read the tuning parameters using the

Batch Tune component in Phoenix; an untuned phone has all zeros in the tuning file.)

• The call box channel is set for a channel in PRL.

Rx IF CDMA Filter

YODA Rx Down-

Converter

Cell Tx PA

Cell Isolator

Rx IC “Alfred”

LNA+Downconverter

Cell Rx RF SAW Filter

Cell Tx SAW Filter

Jedi Tx Up-Converter

VCO

VCTCXO

UPP (B.B)UEM (B.B)

PA PMIC DC-DC

Converter

On/Off Switch

Flash

Tomahawk Connector

Cell Duplexer

Battery Converter

SIM Card Connector