User Guide

RH-30/RH-31 Company Confidential

Troubleshooting Instructions Nokia Customer Care

GSM 850, GSM900, GSM1800 & GSM1900 Transmitter

General instructions for Tx troubleshooting

Kindly refer to the Service Software Section, Service Concept dagram (p.40)

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.

Connect DC power supply to module test jig with FLC-2 cable.

Attention: When repairing or tuning transmitter use external DC supply with at

least 3A current capability. Set the DC supply voltage to 3.9V and set the jumper con-

nector on test jig to "bypass" position.

Connect an RF-cable to the module test jig (MJS-38) RF connector and to measurement

equipment or at least a 10dB attenuator, otherwise the PA may be damaged. Normally a

spectrum analyzer is used as measurement equipment.

Attention: Normally Spectrum analyzer maximum input power is +30dBm. It is recom-

mended 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 and COMBOX driver

when using FPS-8)

Select product from the menu

File -> Choose product -> RH-30/RH-31

From toolbar set operating mode to "Local"

Activate RF controls window from the menu

Testing -> RF Controls

From the RF controls window

• Select band “GSM 850”, "GSM900" or "GSM 1800" or "GSM1900" (Default =

"GSM900" RH-30, Default= “GSM850” RH-31)

• 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 190 on GSM 850, 37 on GSM900 band or 700 on GSM1800