CCS Technical Documentation RH-10 Series Transceivers Troubleshooting — Antenna Issue 1 09/2002 Confidential Nokia Corporation
RH-10 Troubleshooting — Antenna Page 2 Nokia Corporation CCS Technical Documentation Confidential Issue 1 09/2002
CCS Technical Documentation RH-10 Troubleshooting — Antenna Contents Page No Introduction.................................................................................................................... 5 Failures and Corrective Measures ...............................................................................5 Internal antenna not installed .................................................................................... 5 Wrong internal antenna installed.....................................
RH-10 Troubleshooting — Antenna Page 4 Nokia Corporation CCS Technical Documentation Confidential Issue 1 09/2002
RH-10 Troubleshooting — Antenna CCS Technical Documentation Introduction This troubleshooting guide addresses potential failures that will affect the antenna performance of the phone, and discusses how to correct these failures. For additional information, refer to Diva Antenna RF Specifications and Plan (DHS02167-EN-1.0) Failures and Corrective Measures Internal antenna not installed A normal Diva antenna is shown in Figure 1. Figure 2 shows an internal antenna properly installed into the D-cover.
RH-10 Troubleshooting — Antenna CCS Technical Documentation If the internal antenna is missing, install one. If the radiator looks obviously damaged, then replace the internal antenna. If no internal antenna is installed, the antenna gain will be degraded by more than 25 dB. Wrong internal antenna installed Figure 3 shows a Giovanni internal antenna. Figure 3: Giovanni internal antenna If the wrong antenna is installed, install the correct one.
CCS Technical Documentation RH-10 Troubleshooting — Antenna Figure 5: Springs for pins of Diva internal antenna If either pin is pushed in, such that the pin is not clearly visible, as in Figure 4, then it is likely that the pins will not touch the PWB. If the springs are visibly bent upwards (as shown in Figure 5), then it is likely that the pins will not touch the PWB. If the pin gets stuck or has excessive friction in the plastic tube/guiding feature, then the spring will not work properly.
RH-10 Troubleshooting — Antenna CCS Technical Documentation If the RF trace is broken, then the PWB must be replaced. A broken RF trace will result in 25 dB or more degradation in the antenna performance.
