User Guide

CCS Technical Documentation Troubleshooting - Antennas
RH-27
Issue 1 11/2003 Confidential ©2003 Nokia Corporation Page 5
RF feed pin/ground pin, IHF speaker pins in C-cover missing or damaged
Figure 5: Inside view of the C-cover
Two pogo pins are inserted in the C-cover. One end of the pogo pin touches the antenna,
the other end (in Figure 5) touches the pad on the PWB. If either of the pogo pins is
missing, or either of the pogo pins is obviously damaged (stuck in the C-cover plastic
tube, loose the inside spring force), the antenna will lose the contact to the PWB.
Replace the whole C-cover assembly with a correct new one.
If the RF feed doesn't touch the PWB, then the antenna gain will degrade by more than
25 dB. If the ground pin doesn't touch the PWB, then the antenna gain may degrade
about 5 to 10 dB.
If either of the IHF speaker pins is damaged or missing, the speaker will not connect to
PWB. Antenna PCS gain will drop 2 dB. The C-cover assembly should be replaced.
GPS antenna
RF ground
p
o
g
o
p
in
RF feed
p
o
g
o
p
i
n
IHF speaker
p
o
g
o
p
ins