User Guide

TME-3
Disassembly and Troubleshooting PAMS Technical Documentation
Page 12 Nokia Corporation. Issue 3 10/03
GSM900 & GSM1800 Transmitter
General instructions for Transmitter (Tx) troubleshooting
Connect the test jig to the PC with the DAU-9S cable or to the FPS-8 Flash Prommer
with a XCS-4 modular cable.
Make sure that you have the PKD-1 dongle connected to the PCs parallel port.
Connect DC power supply to module test jig with a suitable cable.
Attention: When repairing or tuning transmitter use external DC supply with at
least 3A current capability. Set the DC supply voltage to 13.5V.
Connect a RF- test cable (K-1888) to the external antenna connector and to measure-
ment equipment or at least 10dB attenuator, otherwise the PA may be damaged.
Normally Spectrum analyzer is used as measurement equipment. Another way is connect
RF-cable to the module test jig (MJS-46) RF connector to and to measurement equip-
ment or at least 10dB attenuator.
NOTE: Normally a Spectrum analyzer maximum input power is +30dBm. A 10dB attenua-
tor on Spectrum analyzer input must be used to prevent damage
Set the module in the test jig and start Phoenix service software.
Initialize connection to phone. (use FBUS driver when using DAU9S and COMBOX driver
when using FPS-8).
Select product from the menu.
File -> Choose product -> TME-3
From toolbar set operating mode to "Local"
Activate RF controls window from the menu
Maintenance -> Testing -> RF Controls
From the RF controls window
- Select band "GSM900" or "GSM 1800" (Default = "GSM900")
- Set Active unit to "Tx" (Default = "Rx")
- Set Operation mode to "Burst" (Default = "Burst")
- Set Tx data type to "Random" (Default = "All1")