Nokia RH-66 Troubleshooting Manual page 6

2115i/2116/2116i (RH-66)
Antenna Description and Troubleshooting
• The 2115i/2116/2116i includes a GPS antenna. The 2112 does not.
Note: GPS is functional only in the 2115i and 2116i.
• The main radiators for the 2115i/2116/2116i include markings that begin with an
"F". The 2112 markings begin with a "C".
2115i/2116/2116i
Figure 4: Top view of the 2115i/2116/2116i (left) and 2112 (right) internal antennas
Installing the 2112 antenna in the 2115i/2116/2116i is not compliant with Nokia's FCC
submission because the 2112:
• Uses a single-band (no PCS)
• Does not have a GPS antenna
• Is not tuned correctly for the 2115i/2116/2116i mechanics
• Does not make contact with the feed/ground pads on the PWB
Use the following to troubleshoot the internal antenna:
• If the wrong antenna is installed, install the correct one.
• If the slot in the radiator has a significantly different shape, install the correct
internal antenna. Be aware that the shape of the slot can vary slightly. The length
of the horizontal slot and the opening of the vertical slot can vary by a few
millimeters because the antennas are tuned for each batch of plastic frames.
• If there are other obvious damages to the radiator (e.g., dents and corrosion),
replace the antenna.
• If the pin is stuck or has excessive friction with the plastic tube/guiding feature,
the spring will not work properly. Replace the antenna.
Page 6
GPS antenna
©2005 Nokia Corporation
2112
Company Confidential Issue 1 03/2005