RM-994/ RM-995/ RM-996
RF Troubleshooting Guide
Page 98 NOKIA INTERNAL USE ONLY
Copyright © 2013 Nokia. All rights reserved.
Figure 15 Main antenna position
Antenna troubleshooting
All antennas are painted and therefore the radiators are visible only around contact areas. Check the areas
where the springs touch the radiator for mechanical damage. If the antenna, LDS radiator of the feed pad
on antenna looks obviously damaged, replace the entire antenna assembly. If replacing the antenna
assembly does not correct the problem, check for further mechanical damage and repair.
The antennas and PWB are connected by spring. Inspect the PWB for damage to any of the antenna and
spring, if the spring are missing or are obviously damaged (i.e. deformed), the clips must be replaced with
new ones.
If corrosion is present on the PWB or the antenna contact areas are corroded, most likely the PWB and/or
the phone need to be replaced. If the antenna contact areas are obstructed or covered, the contact areas
should be cleaned or the entire antenna assembly replaced.
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