User Guide

Issue 2 10/2004 COMPANY CONFIDENTIAL 15
Copyright © 2004 Nokia. All Rights Reserved.
NHL-12
7 - RF Description & Troubleshooting Nokia Customer Care
■ General instructions for Rx troubleshooting
1. Connect the test jig (MJ-13) to a computer with a DAU-9S cable or to a FPS-8
flash prommer with an XCS-4 modular cable.
Make sure that you have PKD-1 dongle connected to the computer’s parallel port.
2. Connect a DC power supply to the module test jig with a PCS-1 cable.
3. Set the jumper connector on test jig to “regulator” position and set the DC supply
voltage to 6V (test jig has internal voltage regulator of output voltage 4V).
4. Connect an RF cable to the module test jig’s (MJ-13) RF connector and to RF sig-
nal generator.
5. Set the phone module to test jig and start Phoenix service software.
6. Initialize connection to the phone. (Use FBUS driver when using DAU9S and
COMBOX driver when using FPS-8).
7. Choose product from the menu: File -> Choose Product -> NHL-12.
8. From the toolbar, set operating mode to "Local".
9. Activate the RF Controls window from the menu: Testing -> RF Controls.
In the RF Controls window:
• Select band "GSM850", "GSM 1800" or “GSM1900” (Default = "GSM850").
• Set Active unit to "Rx" (Default = "Rx").
• Set Operation mode to "Burst" (Default = "Burst").
For continuous mode:
• Set Operation mode to "Continuous".
• Set AGC to "12: FEG_ON + DTOS_ON + BB_30=Vgain60” (maximum gain set-
ting used in normal mode).
• (Default = "14: FEG_ON + DTOS_ON + BB_42=Vgain72").
• Set Rx/Tx channel to 190 on GSM850 band, 700 on GSM1800 band or 661 on
GSM1900 (Defaults).
• Apply
881.6671 MHz (channel 190 + 67.710 kHz offset)
1842.86771 MHz (channel 700 + 67.710 kHz offset)
1960.06771 MHz (channel 661 + 67.71 kHz)
–90 dBm signal to the RF connector (remember to compensate for cable attenua-
tion).