Nokia E62 Service Manual page 160

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2. Connect a DC power supply to a module jig (MJ-67).
Note: When repairing or tuning a transmitter, use an external DC supply with at least 3 A current
capability.
Set the DC supply voltage to 12V 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 module test jig (MJ-69) and measurement equipment
or alternatively use a 50 ohms (at least 2 W) dummy load in the module test jig RF connector, otherwise
GSM may be damaged.
Note: There are two antenna connectors in the module jig:
• one for GSM
• one for Bluetooth
Make sure that all connections are made to the correct RF connector.
Normally a spectrum analyser is used as measurement equipment.
Note: The maximum input power of a spectrum analyser is +30 dBm.
To prevent any damage, it is recommended to use 10 dB attenuator on the spectrum analyzer input.
4. Set Tx on.
i Set the phone module to the test jig and start
ii Initialize connection to the phone. (With FPS-10 use FBUS driver when using DAU-9S and COMBOX
driver).
iii From the File menu, choose product: File -> Choose Product -> xx-x* (* = type designator of the
phone).
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:
ii In the
• Select band "GSM850", "GSM900" or "GSM1800" or "GSM1900" (Default = "GSM850").
• 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 GSM850, 37 on GSM900 band or 700 on GSM1800 band or 661 on GSM1900
(Defaults).
• Set Edge to "Off" (Default).
• Set Tx PA mode to "Free" (Default).
• Set power level to 5 (Default = 19) on GSM850/900 or to 0 (Default = 15) on GSM1800 or GSM1900.
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RF Controls window: Testing -> GSM -> RF Controls .
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RF Troubleshooting and Manual Tuning Guide
Phoenix service software .
RM-88
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