User Guide

RH-48
Troubleshooting — Antenna CCS Technical Documentation
Page 6 ©2003 Nokia Corporation Confidential Issue 1 11/2003
Obstructed RF Feed or Ground Pads for Internal Antenna, or IHF Speaker Pads
Figure 7: PWB layout of RF feed and ground pads and IHF speaker pads
If the RF feed pad is obstructed, removed, or covered, then the RF feed pin will not touch
the PWB and the antenna gain will degrade by more than 25dB. If the ground pad is
obstructed, removed, or covered, then the ground pin will not touch the PWB and the
antenna gain may degrade by about 5 to 10dB. If corrosion is present or the pad is miss-
ing, most likely the PWB and phone needs to be replaced. If either pad is obstructed or
covered, the pad should be cleared and/or cleaned.
If the Internal Hands Free (IHF) speaker pads are obstructed, removed, or covered, the IHF
speaker will not produce sound. If corrosion is present or the pad is missing, most likely
the PWB and phone needs to be replaced. If either pad is obstructed or covered, the pad
should be cleared and/or cleaned.
IHF speaker pads
Pad for ground pin
Pad for RF pin