BB Troubleshooting and Tuning Guide
Figure 22 GPS Quick Test window for GPS troubleshooting
GPS RF test points
The GPS antenna test pads are located on the top side under the keymat as shown in figure "GPS antenna
test pads". Checking for a connection between these two test points will confirm that the antenna is working
correctly, as well as performing a radiated CW test.
J6210 = GPS Ant
J6211 = GPS Ant Gnd
In order to probe GPS RF test points, inject 1575.52 MHz tone @ -50dBm at the GPS antenna test connector
and select Receiver On, then probe the GPS RF test points as shown in figure "GPS RF probe points". Compare
RF levels with a known reference phone.
Figure 23 GPS antenna test pads
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