User Guide

RM-4/RM-5

CCS Technical Documentation Troubleshooting Instructions

34 COMPANY CONFIDENTIAL ISSUE 1 02/2004

General instructions for RM4/RM-5 GSM TX troubleshooting

Apply a RF-cable to the RF-connector to allow the transmitted signal act as normal. RF-cable

should be connected to measurement equipment or to at least a 10-dB attenuator, otherwise

the PA may be damaged.

Start Phoenix-Service-Software and establish a connection to the phone e.g. FBUS.

Select File and Product.

Select: Maintenance, Testing and RF Controls

Band: GSM 900

Active Unit: TX

Tx Power Level: 19

Tx Data Type: All 1

Your screen should look like:

Figure 17: GSM900 RF controls window

Measure the output power of the phone; it should be around 32.5 dBm.

Remember the loss in the jig; around 0.3 dB.