User Guide

GPS troubleshooting

GPS layout and basic test points

Figure 18 GPS layout and basic test points

VBat, ASIC internal LDO voltages, and clocks are available as shown in figure above. In addition to these, the

following GPS signals are available on the test points:

• GPS_En_Reset – J6201

• U2Tx – J6202 (Activity on this pin indicates the GPS is operating.)

• IO_INT_U1CLK – J6203

• IO_TIMESTAMP_DATRDY – J6204

• SleepX – J2219

• Sleep Clk (RTC) – J2217

GPS settings for Phoenix

GPS control

Context

Use the following to test GPS using Phoenix.

Steps

1. Start Phoenix service software.

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

RM-313

BB Troubleshooting and Tuning Guide

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