Table Of Contents - Nokia NPD-4 Series Troubleshooting - Gps

Transceivers

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Table of Contents

CCS Technical Documentation

Contents

Acronyms and Abbreviations......................................................................................... 6

Troubleshooting the GPS BB ......................................................................................7

Troubleshooting Flowchart ....................................................................................... 7

Flowchart Notes ...................................................................................................... 10

Troubleshooting the GPS RF .....................................................................................13

Limitations .............................................................................................................. 13

GPS Receiver .............................................................................................................13

General Instructions ................................................................................................ 13

Test Equipment ..........................................................................................................14

Path of the Received Signal .......................................................................................14

GPS RF Quick Fault-finding Chart ...........................................................................15

GPS RF Circuitry and Component Placement ...........................................................16

GPS RF General Checking ........................................................................................18

GPS Reference Clock Checking ................................................................................21

GPS RF and GPS BB Interface Checking .................................................................23

GPS RX Chain Checking ...........................................................................................24

Issue 1 02/2003

Nokia Corporation

Troubleshooting - GPS

Confidential

NPD-4

Page No

Page 3

Table of Contents

Troubleshooting