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General instructions for RX troubleshooting

Steps

1. Connect a test jig to a computer with a DKU-2 cable or to a FPS-10 flash prommer with a modular cable

(XCS-4).

Make sure that you have a PKD-1 dongle connected to the computer's parallel port.

2. Connect a DC power supply to a module test jig (MJ-111).

Note: Set the DC supply voltage to 12 V and set the jumper connector on the test jig's reg.pass

switch to “ON” position.

3. Connect an RF cable between the RF connector of the phone and measurement equipment or alternatively

use a 50 ohms (at least 2W) dummy, otherwise GSM may be damaged.

Note: Make sure that all connections are made to the correct RF connector and correct type of RF

probe is used.

4. Set Rx on.

i Set the phone module to the test jig and start

Phoenix service software

ii Initialize connection to the phone. (With FPS-10 use FBUS driver when using DKU-2 and COMBOX driver).

iii From the File menu, choose product: File -> Choose Product -> xx-x* (* = type designator of the

phone, scan product).

iv From the toolbar, set operating mode to “Local”.

5. EGSM900, GSM850/1800/1900 troubleshooting

i From the Testing menu, activate the

RF Controls

window: Testing -> GSM -> RF Controls .

ii In the

RF Controls

window:

• Select band "GSM850", “GSM900” or “GSM1800” or “GSM1900” (Default = “GSM850”).

• Set Active unit to “Rx” (Default = “Rx”).

• Set Operation mode to “Burst” (Default = “Burst”).

• Set Rx/Tx channel to 190 on GSM850, 37 on GSM900 band or 700 on GSM1800 band or 661 on GSM1900

(Defaults).

• Set Edge to “Off” (Default). (Not active in RXmode).

• Set Tx PA mode to “Free” (Default). (Not active in RXmode).

• Apply 942.46771 MHz (channel 37 + 67.710 kHz offset), 881.66771MHz (channel 190 + 67.710 kHz),

1842.86771 MHz (channel 700 + 67.710 kHz offset) or 1960.06771 MHz (channel 661 + 67.71 kHz) –

90 dBm signal to the RF-connector (remember to compensate for cable attenuation).

RM-198

RF Troubleshooting and Manual Tuning Guide Nokia Customer Care

Issue 1 COMPANY CONFIDENTIAL Page 7 –7