Bluetooth And Fm Radio Troubleshooting; Introduction To Bluetooth Troubleshooting - Nokia RM-313 Service Manual

4. Click Close to end the lights testing.

Bluetooth and FM radio troubleshooting

Introduction to Bluetooth troubleshooting

There are two main Bluetooth problems that can occur:
Detachment of the BT antenna.
A malfunction in the BT ASIC, BB ASICs or Phone's BT
SMD components.
The main issue is to find out if the problem is related to the BT antenna or related to the BT system or the
phone's BB and then replace/fix the faulty component.
Page 3 –56
Problem
Figure 24 Bluetooth placement on the bottom side
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
BB Troubleshooting and Tuning Guide
Description
This would most likely happen if the device has
been dropped repeatedly to the ground. It could
cause the BT antenna to become loose or partially
detached from the PWB (see the details of BT/WLAN
antenna).
This is unpredictable and could have many causes
i.e. SW or HW related.
RM-313
Issue 1