User Guide

# Signal name Test point Voltage (all bands)

5 Vbat at WCDMA PA C7547 3.9 V

6 Supply input to DC/DC conv L7592 3.9 V

* With these settings, the result should be 1.3 V.

Figure 53 General voltage checking test points

Phoenix self tests

Context

Always start the troubleshooting procedure by running the Phoenix self tests. If a test fails, please follow the

diagram below.

If the phone is dead and you cannot perform the self tests, go to

Dead or jammed device troubleshooting.

in the baseband troubleshooting section.

RM-135

RF troubleshooting Nokia Customer Care

Issue 1 COMPANY CONFIDENTIAL Page 5 –9