Nokia NPL-3 Series Manuals

Table of Contents

• • 2

    Table of Contents

• 3

  RF Troubleshooting

  • 3

    Introduction to RF Troubleshooting
  • 4

    RF Key Component Placement
  • 5

    RF Measurement Points

• 6

  GSM850, GSM1800 & GSM1900 Transmitter

  • 6

    General Instructions for Tx Troubleshooting
  • 8

    Transmitter Troubleshooting Diagram
  • 11

    Pictures of Transmitter Signals

• 13

  Additional Information for EDGE Troubleshooting

  • 13

    EDGE Mode Troubleshooting Differs Slightly from Basic GSM Troubleshooting
  • 17

    Pictures of EDGE Transmitter Signals

• 21

  GSM850, GSM1800 and GSM1900 Receiver

  • 21

    General Instructions for Rx Troubleshooting
  • 25

    Troubleshooting Diagram for GSM850 Receiver
  • 26

    Troubleshooting Diagram for GSM1800 Receiver
  • 27

    Troubleshooting Diagram for GSM1900 Receiver

• 28

  Synthesizer

  • 28

    General Instructions for Synthesizer Troubleshooting
  • 30

    Pictures of Synthesizer Signals

• 32

  Baseband Troubleshooting

  • 33

    Main Troubleshooting Diagram
  • 34

    Phone Is Dead
  • 35

    Flash Programming Fault
  • 36

    Phone Is Jammed
  • 38

    SIM Card Fault (Insert SIM / Card Rejected)
  • 39

    Keypad Fault
  • 41

    Display Fault
  • 42

    Illumination Fault
  • 43

    Charger Fault
  • 44

    Accessory Fault
  • 45

    Audio Fault

• 49

  FM Radio Troubleshooting

  • 49

    FM Radio Component Layout
  • 50

    FM Radio Troubleshooting Diagram
    • 50

      Notes to "FM Radio Troubleshooting Diagram