Nokia Customer Care Antenna Description and Troubleshooting Introduction This chapter addresses potential failures that affect antenna performance of the 2366i mobile terminals and discusses methods for correction of these failures. There are three serviceable antennas used in the 2366i mobile terminal: •...
2366i (RM-155) Antenna Description and Troubleshooting Nokia Customer Care CDMA Antenna Assembly You can disconnect the dual-band CDMA antenna assembly. Partial disassembly of the mobile terminal is required to remove and replace the CDMA antenna assembly. (See the Disassembly and Assembly chapters for instructions.) When installed, a T-shaped locking tab on the antenna assembly engages two locking ramps molded into the D-cover and an electrical spring clip contact connects to a pad on the main PWB.
2366i (RM-155) Nokia Customer Care Antenna Description and Troubleshooting Remove the CDMA Antenna Assembly Perform the following steps to remove the CDMA Antenna Assembly: 1. Remove the battery cover. Press down on the cover while sliding it away from the body of the mobile terminal.
2366i (RM-155) Antenna Description and Troubleshooting Nokia Customer Care 4. Remove the antenna. Use a dental pick to lift the retaining latch. Do not cause damage to the contacts. Figure 5: Disconnection of the Antenna (1) Figure 6: Disconnection of the Antenna (2)
2366i (RM-155) Nokia Customer Care Antenna Description and Troubleshooting Damaged RF Connector • The RF connector contains a switch. If this switch fails, there is a loss of continuity between the input to the diplexer and the CDMA antenna, resulting in a gain reduction of approximately -25 dB.
2366i (RM-155) Antenna Description and Troubleshooting Nokia Customer Care GPS Antenna The GPS Antenna is a ceramic chip soldered onto the Main PWB. The antenna must be mounted exactly as shown in the figure, or the antenna does not operate correctly. RF choke L6253 acts as an ESD protection, draining static charges to ground.
2366i (RM-155) Nokia Customer Care Antenna Description and Troubleshooting GPS Antenna Feed Ground Ground Figure 10: GPS Antenna and mounting arrangement GPS RF Connector Figure 11: GPS RF Connector (GPS Antenna removed) GPS Matching Components Figure 12 shows the impedance-matching components for the GPS antenna circuit.
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2366i (RM-155) Antenna Description and Troubleshooting Nokia Customer Care 6,2 nH, NMP code 3649051 2.2 pF NMP code 2320523 Front Side Rear Side Figure 12: Matching components—GPS Antenna circuit Page 10 Company Confidential Issue 2 - February 2007...
2366i (RM-155) Nokia Customer Care Antenna Description and Troubleshooting Bluetooth Antenna The Bluetooth antenna, shown in Figure 13, is mounted on the main PWB. A 6.8 nH inductor is used as a tuning component. Ensure that the antenna is correctly mounted on the PWB.
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2366i (RM-155) Antenna Description and Troubleshooting Nokia Customer Care This page intentionally left blank. Page 12 Company Confidential Issue 2 - February 2007...