Nokia RM-596 - Table 1 Audio

Symptom Problem Repair solution
Poor FM transmitter range (for
example with car radio)
Large path loss between the
phone FM transmitter antenna
and external FM radio aerial (for
example, FM aerial routing
inside car is very well screened
or greater than 3 metre
distance between the phone
and FM radio)
Change the setup of aerial on
FM radio used for listening to
audio
BT and FM radio test coverage
The tests listed in the table below should be performed to verify whether the Bluetooth and FM receiver and
transmitter are functional. The use of self tests is described in section Bluetooth and FM radio self tests in
Phoenix .
Test Test Coverage Repair solution
Blueooth Self Test: ST_LPRF_IF_TEST Bluetooth-FM ASIC UART interface
(controls Bluetooth and FM
receiver and transmitter)
Replacement of BOB module
(or repair of phone BB)
Bluetooth Self Test:
ST_BT_WAKEUP_TEST
Bluetooth ASIC interrupt control
interface
Replacement of BOB module
(or repair of phone BB)
Bluetooth Self Test:
ST_LPRF_AUDIO_LINES_TEST
Bluetooth ASIC PCM interface Replacement of BOB module
(or repair of phone BB)
Bluetooth Functional Test: BER test
with BT-Box or functional test with
other Bluetooth device
Bluetooth antenna circuit Repair of Bluetooth antenna
circuit (including RF filter or
WLAN switch if fitted)
FM Radio Functional Test: Perform
scan for local radio stations and
check station list displayed on
phone
FM receiver antenna circuit Repair of FM antenna circuit
(between BTHFMWLAN ASIC
and headset connector)
FM Radio Functional Test: Listen to
local radio station
FM receiver audio circuit Repair of FM receiver audio
circuit (between BTHFMWLAN
ASIC and headset connector)
FM Transmitter Antenna Test: Read
Antenna Tuning Values in Phoenix
or functional test transmitting
music to nearby radio
FM transmitter antenna circuit and
antenna
Replacement of FM transmitter
circuit or antenna
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 of Bluetooth and FM radio receiver and transmitter.
If Bob1.0M-b module has been replaced, the WLAN tuning must be performed to ensure that the
output complies with ETSI/ FCC legal limits.
FMTX troubleshooting faults
Possible faults
RM-596
BB Troubleshooting and Manual Tuning Guide
Issue 2 COMPANY CONFIDENTIAL Page 3 – 61
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