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CCS Technical Documentation
RH-27 Series Transceivers
Troubleshooting - Antennas
©2003 Nokia Corporation
Issue 1 11/2003 Confidential

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Summary of Contents for Nokia RH-27 Series

  • Page 1 CCS Technical Documentation RH-27 Series Transceivers Troubleshooting - Antennas ©2003 Nokia Corporation Issue 1 11/2003 Confidential...
  • Page 2: Table Of Contents

    Obstructed RF feed & ground pads, GPS feed and ground pads, IHF speaker pads 6 CDMA or GPS RF connector failure ................ 6 Display Assembly ..................... 7 Missing or damaged baseband shield................ 9 ©2003 Nokia Corporation Page 2 Confidential Issue 1 11/2003...
  • Page 3: Troubleshooting - Antennas

    Figure 1: Front and back views of the RH-27 (6225) phone Missing internal antenna or antenna radiator Internal Antenna antenna Slot Antenna cap is missing Antenna cap Figure 2: RH-27 (6225) phone with and without antenna cap ©2003 Nokia Corporation Issue 1 11/2003 Confidential Page 3...
  • Page 4: Missing Gps Antenna, Damaged Gps Feed/Ground Pin Or Damaged Heatstick

    4 Any of the three heat stakes are over-heated and GPS antenna melts into the C-cover; antenna will look distorted and bent 5 Either GPS antenna feed or ground leg is broken or bent so that either pin will not touch the PWB. ©2003 Nokia Corporation Page 4 Confidential Issue 1 11/2003...
  • Page 5: Rf Feed Pin/Ground Pin, Ihf Speaker Pins In C-Cover Missing Or Damaged

    5 to 10 dB. If either of the IHF speaker pins is damaged or missing, the speaker will not connect to PWB. Antenna PCS gain will drop 2 dB. The C-cover assembly should be replaced. ©2003 Nokia Corporation Issue 1 11/2003 Confidential...
  • Page 6: Obstructed Rf Feed & Ground Pads, Gps Feed And Ground Pads, Ihf Speaker Pads

    RF input when a cable is inserted into the RF connector. When a cable is not inserted, the RF input is connected to the RF connector. The locations of both RF ©2003 Nokia Corporation Page 6 Confidential...
  • Page 7: Display Assembly

    If the screws are loose, tighten them. If the screw bosses are stripped, the chassis will need to be replaced. If the screws are missing, install new ones. ©2003 Nokia Corporation Issue 1 11/2003 Confidential...
  • Page 8 For RH-34 frame, the screw boss area is plated but isolated from the rest of the frame, and also there is no plating in the area inside the green dashed line in Figure 9. ©2003 Nokia Corporation Page 8...
  • Page 9: Missing Or Damaged Baseband Shield

    Check spring fin- gers on baseband shield to ensure that they are raised up so that when installed, they make contact with the PWB. If damaged, install a new baseband shield. ©2003 Nokia Corporation Issue 1 11/2003 Confidential...
  • Page 10 RH-27 Troubleshooting - Antennas CCS Technical Documentation ©2003 Nokia Corporation Page 10 Confidential Issue 1 11/2003...

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