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RM-12
EGSM900, GSM1800 & GSM1900 Transmitter
General instructions for Tx troubleshooting
Kindly refer to the Service Software Section, Service Concept diagram.
Connect test jig to computer with DAU-9S cable or to FPS-8 Flash Prommer with XCS-4 mod-
ular cable.
Make sure that you have PKD-1 dongle connected to computer's parallel port.
Connect DC power supply to module test jig with FLC-2 cable.
NOTE! When repairing or tuning transmitter use external DC supply with at least 3A current capabil-
ity. Set the DC supply voltage to 4.2V .
Connect an RF-cable to the module test jig (MJ-32) RF connector and to measurement equip-
ment or at least a 10dB attenuator, otherwise the PA may be damaged. Normally a spectrum
analyzer is used as measurement equipment.
NOTE! Normally Spectrum analyzer maximum input power is +30dBm. It is recommended to use
10dB attenuator on Spectrum analyzer input to prevent damage.
Set the phone module to test jig and start Phoenix service sofware.
Initialize connection to phone. (Use FBUS driver when using DAU9S, COMBOX driver when
using FPS-8.)
Select product from the menu:
File -> Choose product -> RM-12
From toolbar, set operating mode to "Local"
Activate RF controls window from the menu:
Testing -> RF Controls
From the RF controls window:
•
Select band "GSM900" or "GSM 1800" or "GSM1900" (Default = "GSM900")
•
Set Active unit to "Tx" (Default = "Rx")
•
Set Operation mode to "Burst" (Default = "Burst")
•
Set Tx data type to "Random" (Default = "All1")
•
Set Rx/Tx channel to 37 on GSM900 band or 700 on GSM1800 band or 661 on
GSM1900 (Defaults)
•
Set Tx PA mode to "Free" (Default)
•
Set power level to 5 (Default = 19) on GSM900 or to 0 (Default = 15) on
GSM1800 or GSM1900
Issue 1 11/2004
COMPANY CONFIDENTIAL
Copyright © 2004 Nokia. All Rights Reserved.
CCS Technical Documentation
6
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Troubleshooting
