User Guide

Issue 1 03/2005 COMPANY CONFIDENTIAL 7

RM-31

6(b) - RF Troubleshooting Nokia Customer Care

Receiver Verification and Troubleshooting

■ General instructions for RX troubleshooting

Connect the phone to a PC, which has Phoenix Service Software and a dongle installed, using

either

• repair jig and DAU-9S (RS232) cable or

• repair jig and XCS-4 cable via FPS-8 Flash Box or

• DAU-9T cable (RS232).

Connect the phone to a power supply (DC voltage: 3.6V, max. current: 3A) and an RF signal

generator. Switch the phone on.

Start Phoenix Service Software and open FBUS connection.

Select Scan Product Ctrl-R

and wait until the phone information (RM-31) is shown in the lower right corner of the screen.

Follow the instructions below.

■ Measuring RX I/Q signals using RSSI reading

Start Phoenix Service Software and open FBUS connection.

Select Scan Product Ctrl-R

Wait until the phone information is shown in the lower right corner of the screen.

Set the operating mode to local mode

Select Testing T

RF Controls F

Select Band GSM850 or GSM1800 or GSM1900

Active unit RX

Operation mode Burst

RX/TX Channel 190 or 700 or 661

Select Testing T

RSSI reading

In the RSSI Reading window, the <measuring mode> shall be set on Sum vector and the

<reading mode> on Continuous.

The set up should now look like this: