General Instructions For Gsm 1800 Tx Troubleshooting - Nokia RH-64 Service Manual

RH-64
RF troubleshooting

General instructions for GSM 1800 TX troubleshooting

Steps
1. Apply a RF-cable to the RF-connector to allow the transmitted signal act as normal. RF-cable should be
connected to an attenuator at least 10dB before connected to the measurement equipment, otherwise the
PA may be damaged.
2. Start Phoenix and establish a connection to the phone with the data cable e.g. FBUS.
3. Select File and Scan product.
4. Wait a while for the PC to read the information from the phone.
5. Select Testing and RF Controls.
6. Set the parameters as follows:
i Band: GSM 1800
ii Active Unit: RX
iii TX Power Level: 5
iv TX Data Type: Random
9243363 (Issue 1)
Figure 128 TXC signals at PCL19
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