CCS Technical Documentation RH-34 Series Transceivers Troubleshooting - Antennas Issue 1 11/2003 Confidential ©2003 Nokia Corporation
RH-34 Troubleshooting - Antennas CCS Technical Documentation Contents Page No Troubleshooting - Antennas........................................................................................... 3 Failures and Corrective Measures ...............................................................................3 Appearance of phone................................................................................................. 3 Missing internal antenna or antenna radiator ..................................
RH-34 Troubleshooting - Antennas CCS Technical Documentation Troubleshooting - Antennas This troubleshooting guide addresses potential failures that will affect the antenna performance of the RH-34 phone, and discusses methods for correction of these failures.
RH-34 Troubleshooting - Antennas CCS Technical Documentation Antenna radiator Figure 3: RH-34 (6585) antenna cap with and without radiator If the antenna cap is missing or there is a cap but it has no radiator, install a new antenna cap with radiator. If the radiator looks obviously damaged (dents, corrosion) or the slot in the radiator has a significantly different shape, then install a new antenna cap with correct radiator.
RH-34 Troubleshooting - Antennas CCS Technical Documentation RF feed pin/ground pin, IHF speaker pins in C-cover missing or damaged IHF speaker pogo pins RF ground pogo pin GPS antenna ground leg GPS antenna feed leg RF feed pogo pin Figure 5: Inside view of the C-cover Two pogo pins are inserted in the C-cover. One end of the pogo pin (in Figure 4) touches the antenna, the other end (in Figure 5) touches the pad on the PWB.
RH-34 Troubleshooting - Antennas CCS Technical Documentation The RH-34 (6585) antenna and the Jacqueline antenna caps are similar in appearance. The radiators are totally different. If the wrong antenna is installed, install the correct one.
RH-34 Troubleshooting - Antennas CCS Technical Documentation the RF connector. Since the RF connector is also a switch, the RF output will be disconnected from the 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 connectors are shown in Figure 7.
RH-34 Troubleshooting - Antennas CCS Technical Documentation RH-34 Display Assembly Grounding of the display shield and frame Grounded position Display shield Figure 8: RH-34 phone display assembly Display Frame plated area Display shield Display Frame Figure 9: Side view of RH-34 display assembly The display shield is connected to the display frame plated area (screw boss area) and then to the PWB through the two top screws.
RH-34 Troubleshooting - Antennas CCS Technical Documentation Wrong display assembly installed RH-34 Display shield RH-27 Display shield Figure 10: Side view of RH-34 and RH-27 display assembly No plating RH-27 Display frame plating RH-34 Display frame plating Figure 11: Back view of RH-34 and RH-27 display assembly Display assemblies of RH-34 (6585) and RH-27 (6225) are very similar.
RH-34 Troubleshooting - Antennas CCS Technical Documentation Missing or damaged baseband shield without baseband shield RH-34 baseband shield Figure 12: RH-34 baseband shield assembly Baseband shield is part of the display assembly. If the baseband shield is missing or is obviously damaged, the radiated phone performace will be impacted. Install a new baseband shield.
