Nokia n-gageqda Service Manual

Page of 76
Nokia Customer Care
7 - RF Description and Troubleshooting
                                 Company Confidential
      RH-47
Issue 1 05/04 
        Copyright ©
 2004 Nokia Corporation
Page 17
Company Confidential
Receiver Troubleshooting
General instructions for RX troubleshooting
Connect the phone to a PC with Phoenix dongle PKD-1CS and DAU-9S cable (RS232). 
Follow the instructions below. 
Connect the phone to a power supply (DC voltage of 3.6V) and an RF signal generator.
Measuring RX I/Q signals using RSSI reading
1 Start Phoenix Service Software and open FBUS connection:
Select
Scan Product
Ctrl-R
Wait until phone information is shown in the lower right corner of the screen.
2 Set operating mode to local mode:
Select
Maintenance
Alt-M
Testing
T
RF Controls
F
Wait until the RF Controls window pops up.
3 In the RF Controls window:
Select
Band
GSM850 or GSM1900
Active unit
RX
Operation mode
Burst
RX/TX Channel
190 or 661
Select
Maintenance
Alt-M
Testing
T
RSSI reading
R