Receiver Verification And Troubleshooting; General Instructions For Rx Troubleshooting; Measuring Rx I/Q Signals Using Rssi Reading - Nokia RM-94 Rf Troubleshooting Instructions

RM-94
6(b) - RF Troubleshooting

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
and wait until the phone information (RM-94) 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
Wait until the phone information is shown in the lower right corner of the screen.
Set the operating mode to local mode
Select
Select
Select
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:
Issue 1 04/2005
Scan Product
Scan Product
Testing
Band
Active unit
Operation mode
RX/TX Channel
Testing
COMPANY CONFIDENTIAL
Copyright © 2005 Nokia. All Rights Reserved.
RF Controls
GSM 900 or GSM1800 or GSM1900
RX
Burst
37 or 700 or 661
RSSI reading
Nokia Customer Care
Ctrl-R
Ctrl-R
T
F
T
R
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