Rf-Alignment - Nokia 616 Service Manual

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RF-Alignment

Prepare the test set up as shown in figure 4:
Due to the fact, that the engine modules are delivered as already (fully) aligned, there is
no alignment to be done under normal circumstances. To test the devices, a call tests
against a tester (see also 'Phonecall with RCT Tester') is a sufficient test to verify that the
paramenters are within the specified limits. To check the general functionality, a call
against the network (think of using a suitable antenna) should be done.
In case that the alignment is not as specified, the alignment can be done as with NPL-1.
Refer to the Module Jig concept in chapter 4.
The purpose of this repair jig is to provide a method of applying voltage from an external
power supply when the module is out of its mechanics and to support analysis measure-
ments.
The repair jig provides following functions:
• Fused protection
• Overvoltage protection
• Reverse polarity protection
• ESD protection
• Decoupling capacitors
• Access to exposed components and GSM connector
• Access to internal test points (Jxxx)
• BlueTooth coupler
It is intended that the repair jig should be used under all circumstances where an exter-
nal supply to the phone is required to be applied while the phone is out of its mechanics.
It should be noted that the supply voltage to the repair jig is intended to be nominal sup-
ply voltage of 4.2V
Issue 2.0 Mar/2005
Company Confidential
Copyright © 2005 Nokia Corporation
Company Confidential
TFE-4/RV-1
Troubleshooting
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