Symptom, Problem And Repair Solution - Nokia 301 Service Manual

Symptom, Problem and Repair Solution

The following problems can occur with the Bluetooth hardware:
Symptom
Unable to switch on Bluetooth on
phone user interface
Able to send data file to another
Bluetooth device, but unable to
hear audio through functional
Bluetooth headset
Able to switch on Bluetooth on
phone user interface, but unable
to detect other Bluetooth devices
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Figure 23 Test points in Bluetooth ASIC circuit – BTHFMRDS4.4D
Open circuit solder joints or
component failure of BTH ASIC,
BB ASICs, or SMD components.
Open circuit solder joints or
component failure of BTH ASIC,
BB ASICs (PCM interface).
Open circuit solder joints or
detacted component in
Bluetooth antenna circuit.
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Problem
RM-839; RM-840; RM-841
Cellular RF troubleshooting
Repair Solution
Replacement of Bluetooth ASIC
Replacement of Bluetooth ASIC
Repair of Bluetooth antenna
circuit
Issue 1