User Guide

# Signal name Test point Voltage (all bands)

3 TXFBM supply C7523 3.9 V

4 WCDMA PA supply from DC/DC conv C7543 0 V (When transmitting 1.3 V - 3.1 V

depending on output power. *3.1 V

with settings as in the note below.)

5 Vbat at WCDMA PA L7550 3.9 V

6 Supply to AHNEUS DC/DC conv L7592 3.9 V

* With these settings, the result should be 3.1V.

RM-313

RF troubleshooting

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