User Guide

RH-26
7 - Troubleshooting Instructions CCS Technical Documentation
Page 18 ©Nokia Corporation Issue 1 02/04
GSM850, GSM1800 and GSM1900 Receiver
General instructions for Rx troubleshooting
1 Connect test jig to computer with DAU-9S cable or to FPS-8 Flash Prommer with
XCS-4 modular cable.
Make sure that you have PKD-1 dongle connected to computers parallel port.
2 Connect DC power supply to module test jig with FLC-2 cable.
3 Set the DC supply voltage to 4.2V.
4 Connect an RF-cable to the module test jig (MJ-5) RF connector and to RF signal
generator.
5 Set the phone module to test jig and start Phoenix service software.
6 To initialize connection to the phone (use FBUS driver when using DAU-9S and
COMBOX driver when using FPS-8).
• From the File menu, choose Product.
• From the list, select RH-26.
• From toolbar set operating mode to "Local"
7 To activate the RF controls window:
• From the Testing menu, choose RF Controls.
8 In the RF controls window:
• Select band "GSM850", "GSM1800" or “GSM1900” (Default = "GSM850").
• Set Active unit to "Rx" (Default = "Rx").
• Set Operation mode to "Continuous" (Default = "Burst").
• Set AGC to "12: FEG_ON + DTOS_ON + BB_30 = Vgain_60” (Default = "12:
FEG_ON + DTOS_ON + BB_42 = Vgain_72").
• Set Rx/Tx channel to 37 on GSM850 band, 700 on GSM1800 band or 661 on
GSM1900 (Defaults).
• Apply 942.46771 MHz (channel 37 + 67.710 kHz offset), 1842.86771 MHz (chan-
nel 700 + 67.710 kHz offset) or 1960.06771 MHz (channel 661 + 66.710 kHz off-
set) –90 dBm signal to the RF-connector (remember to compensate for cable
attenuation).