# Signal name Test point Voltage (all bands)
2 AHNEUS supply from DC/DC conv L7502 3.2 V
3 TXFEM 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.
Figure 31 Tx Control window
RM-247
RF troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 4 –9
Copyright © 2008 Nokia. All rights reserved.
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