Bt Antenna; Possible Bt Antenna System Failure Modes - Nokia 6265 Antenna Description And Troubleshooting

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BT Antenna

The BT antenna is a stamped, trimmed metal sheet formed with two spring contacts and
heat staked to a plastic support structure. This antenna is located to the right of the
battery with the baseband shield under it. It is inserted into the D-cover and makes
contact with two PWB pads below it. There is a hole in the top of the D-cover used to
catch a locking feature on the BT antenna plastic module. This outer catch and the catch
on the inside of the D-cover must be properly engaged. There are no antenna impedance
matching elements for BT on the main PWB.

Possible BT Antenna System Failure Modes

Table 2 shows possible BT antenna system failure modes and their solutions.
Failure
The BT antenna spring clips are deformed.
The BT antenna plastic heat stakes do not hold
the metal antenna firmly.
The BT antenna plastic catch for the D-cover is
deformed or broken.
The BT-antenna plastic antenna support is
deformed or broken.
The D-cover is deformed or broken.
1. Release the outer catch of the in the D-cover hole that locks the BT antenna.
Issue 1 11/2005
Table 2: BT antenna system failure modes
Figure 12: Outer catch inside D-cover
©2005 Nokia Corporation
6265/6265i/6268 (RM-66)
Antenna Description and Troubleshooting
Solution
Replace with a good BT antenna. Exact spring
shape is required to guarantee the BT antenna's
ability to function if the mobile terminal is
dropped.
Replace with a good BT antenna.
Replace with a good BT antenna.
Replace with a good BT antenna.
Replace D-cover.
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