Nokia RH-3 Series Troubleshooting - Gps page 20

RH-3
Troubleshooting — GPS
Testing/GPS Receiver Control (AMS) / Receiver On in Phoenix
11 Execute
Note: When turning the GPS "ON" for the first time via the Phoenix command, the CDMA engine
will switch to "Local Mode". During this transition the GPS will perform an internal self-test and
may turn the GPS "off " at the end of the self-test. If this is the case, execute the Receiver ON com-
mand again. Looking at the current consumption, you can easily monitor this state.
12 Check operating voltages
DC voltages VRF_GPS at C017, LNA VCE at C006 and VIO at C067 should be as presented
in the following picture:
Page 20
Figure 11: DC level of LNA Collector Emitter Voltage Vce
Nokia Corporation
CCS Technical Documentation
Confidential Issue 1 06/2003