User Guide

GPS Troubleshooting

GPS layout and basic test points

The GPS components are located under the shield can A6200. Satellite signals are picked up by the phone's

GPS antenna in the B-cover. The signal is then routed through a filter before being processed by the GPS5350

receiver ASIC.

Figure 19 GPS layout and basic test points

GPS Settings for Phoenix

GPS control

Prerequisites

A flash adapter with RF coupler connected to a PC with Phoenix service software is required. The GPS signal

should be connected to the RF coupler. Calibrate the signal level with a known good phone. Signal level will

be high (approx -45dBm) because it is a leakage connection.

Context

Use the following to test GPS using Phoenix.

Steps

1. Place phone to Flash Adaptor.

2. Start Phoenix service software.

3. From the File menu, select Scan Product and check that the correct product version is displayed.

RM-348; RM-349; RM-350

Baseband Troubleshooting

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