Nokia RM-235 Service Manual page 87

RM-235
BB troubleshooting
Test
Bluetooth Functional Test: BER test
with BT-Box or functional test with
other Bluetooth device
FM Radio Self Test: ST_RADIO_TEST
FM Radio Functional Test: Perform
scan for local radio stations and
check station list displayed on
phone
FM Radio Functional Test: Listen to
local radio station
The self tests run from Phoenix software are used for fault diagnosis.
If Phoenix software is not available the functional tests with phone accessories are sufficient to verify the
functionality Bluetooth and FM radio receiver and transmitter.
Bluetooth/FM radio component layout and test points
Issue 1
Test Coverage
Bluetooth antenna circuit
FM Radio I2C interface
FM receiver antenna circuit
FM receiver audio circuit
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Repair solution
Repair of Bluetooth antenna
circuit (including RF filter or
WLAN switch if fitted)
Replacement of Bluetooth/FM
ASIC (or repair of phone BB)
Repair of FM antenna circuit
(between BTHFM ASIC and
headset connector)
Repair of FM receiver audio
circuit (between BTHFM ASIC
and headset connector)
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