Nokia 300 - Phone Security Features; Bluetooth Security Settings

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Table of Contents

General instructions for cellular RF troubleshooting......................................................................................... 4–5

Cellular RF key components.................................................................................................................................. 4–5

Cellular RF main troubleshooting ........................................................................................................................ 4–6

Cellular RF main troubleshooting................................................................................................................... 4–6

Self test troubleshooting................................................................................................................................. 4–9

Troubleshooting with RF Self tests............................................................................................................ 4–9

RF-BB interface self test troubleshooting.............................................................................................. 4–10

RF supply self test troubleshooting........................................................................................................ 4–12

VXO level.................................................................................................................................................... 4–12

VIO level..................................................................................................................................................... 4–12

VREF level .................................................................................................................................................. 4–12

VDCDCA (Vlow) level ................................................................................................................................. 4–13

RF tuning and testing ........................................................................................................................................ 4–13

RF auto tuning and testing with Nokia Care Suite..................................................................................... 4–13

RF auto tuning procedure ............................................................................................................................ 4–13

Automatic RF testing with Nokia Care Suite............................................................................................... 4–17

Troubleshooting with Testing And Tuning Tool ........................................................................................ 4–18

Manual transmitter (TX) testing with Phoenix........................................................................................... 4–20

General instructions for transmitter (TX) activation ............................................................................ 4–20

GSM transmitter activation...................................................................................................................... 4–20

WCDMA transmitter activation................................................................................................................ 4–23

Manual receiver (RX) testing with Phoenix ................................................................................................ 4–24

General instructions for manual receiver testing................................................................................. 4–24

GSM RX chain activation for manual measurements/GSM RSSI measurement .................................. 4–25

WCDMA RX chain activation for manual measurement........................................................................ 4–25

WCDMA RSSI measurement ..................................................................................................................... 4–26

Antenna............................................................................................................................................................... 4–27

Antenna overview ......................................................................................................................................... 4–27

Antenna troubleshooting............................................................................................................................. 4–27

List of Figures

Figure 8 Linko shields ........................................................................................................................................... 4–6

RM-781

Cellular RF troubleshooting

Issue 1 COMPANY CONFIDENTIAL Page 4 – 3