Nokia RH-17 Series Ccs Technical Documentation
Troubleshooting - antennas, transceivers
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Also See for RH-17 Series:
- Troubleshooting - rf (68 pages) ,
- Troubleshooting - bb (48 pages) ,
- Assembly (12 pages)
Related Manuals for Nokia RH-17 Series
Summary of Contents for Nokia RH-17 Series
- Page 1 CCS Technical Documentation RH-17 Series Transceivers Troubleshooting — Antennas Nokia Corporation Issue 1 04/2003 Confidential...
- Page 2 RH-17 Troubleshooting — Antennas CCS Technical Documentation Nokia Corporation Page 2 Confidential Issue 1 04/2003...
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Page 3: Table Of Contents
Broken or Missing Antenna Clip ................8 Obstructed Whip Stopper ..................9 Grounding of Display Frame..................9 Misinstalled Whip ....................12 Damaged Whips ...................... 12 Detuning Circuit for Bottom Antenna Clip............. 12 RF Connector Failure ....................13 Nokia Corporation Issue 1 04/2003 Confidential Page 3... - Page 4 RH-17 Troubleshooting — Antennas CCS Technical Documentation Nokia Corporation Page 4 Confidential Issue 1 04/2003...
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Page 5: Troubleshooting - Antennas
Figure 2: Back of RH-17 Figure 3: Back and Top of RH-17 Note in Figure 3 that when the whip antenna is properly installed, the cap “clicks” into the D-cover when the whip is fully retracted. Nokia Corporation Issue 1 04/2003 Confidential Page 5... -
Page 6: Failures And Corrective Measures
If either the RF feed pin or ground pin are broken, or bent such that either pin will not touch the PWB, then the internal antenna must be replaced. If the springs for the RF or ground pin appear damaged, then the internal antenna must be replaced. If the slot in Nokia Corporation Page 6 Confidential... -
Page 7: Wrong Internal Antenna Installed
RH-17 antenna is not tuned for PCS. In addition, if an RH-17 antenna is installed in the RH-3, GPS will degrade by about 25 dB as the RH-17 doesn’t have a GPS antenna. Nokia Corporation Issue 1 04/2003 Confidential... -
Page 8: Obstructed Rf Feed And Ground Pads For The Internal Antenna
4-5 dB in the RX portion of CELL band. If the antenna clip is installed backwards, is damaged, or is missing, then install a new bottom antenna clip in the correct position. Nokia Corporation Page 8 Confidential... -
Page 9: Obstructed Whip Stopper
If the clips are not touching the PWB, or are corroded, or obstructed, then the display frame should be replaced. Nokia Corporation Issue 1 04/2003 Confidential Page 9... - Page 10 The following figures show the contact between the display frame ground clips and the PWB in greater detail. Figure 11: Ground clip on the left side of the display frame Figure 12: Ground clip on the right side of the display frame Nokia Corporation Page 10 Confidential Issue 1 04/2003...
- Page 11 Troubleshooting — Antennas Figure 13: Contact between left ground clip of display frame and side plating of PWB. Figure 14: Contact between right ground clip of display frame and side plating of PWB. Nokia Corporation Issue 1 04/2003 Confidential Page 11...
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Page 12: Misinstalled Whip
If the detuning circuit is not installed properly, then the internal antenna gain will degrade by about 4-5 dB in the RX portion of CELL band. The detuning circuit consists of a 1nH coil inductor. If the inductor is missing, then install one. If the induc- Nokia Corporation Page 12 Confidential... -
Page 13: Rf Connector Failure
RF output - connects to antenna pad through vias RF connector - connects to coaxial cable If the RF input is not connected properly to the RF output, then the RF connector must be replaced. Nokia Corporation Issue 1 04/2003 Confidential Page 13... - Page 14 RH-17 Troubleshooting — Antennas CCS Technical Documentation Nokia Corporation Page 14 Confidential Issue 1 04/2003...