TROUBLESHOOTING
FM Radio Problems - Bluetooth Problems
SEMC Troubleshooting Manual
K630 - V640 - K660
FM Radio problems
Bluetooth problems
START
Go to
Service Tests and
Perform:
Speaker and FM Radio Test
Speaker and
FM Radio Tests
working properly
No
Replace
N3101
PHF
working properly
during
Voice call
No
Yes
Yes
SL 5 Replace
N2000
SL 4 Escalate
Fault trace SW
Audio and FM Radio
FM Radio
Audio Output
Loudspeaker
Frequency:
According to
Instrument Settings
Set FM Radio
Load ITP SW
into the phone.
Use TRS Fixture
Connect VBATT and
DCIO/SEPI
Use Fault Trace SW
Yes
No
3.8 Volt DC
at MP 68 (C3304)
and 1.8V at MP 65
(C3305)
Any signal at
MP 42 (C3145)
MP 40 (C3146)
Yes
Signal Ok
Claim
System Connector
X2400
SL 5 Replace
N2000
SL 4 Escalate
Yes
SL 4 Replace
C3145 or C3146
SL 5 Replace
N1400
L3300 and C3303
SL 4 Escalate
No
No
Replace
System Connector
X2400
Can you
hear 1KHz tone at
TRS Fixture
Loudspeaker
No
Yes
SL 5 Replace
N2000
SL 4 Escalate
Disconnect:
DCIO/SEPI Cable
Connect:
Customized FM Radio Cable
Black Lab Plug to
TRS Fixture GND Input and
PHF Connector to the Phone
System Connector
Signal Generator
Instrument Settings:
Frequency:
Use free Freq. Channel
Example:
103 MHz in Sweden
Amplitude: 25.0 uVrms
FM Dev:
+/-22.5 kHz
FM Rate:
1kHz
SL 5 Replace
R2405,L3301,L2400
SL 4 Escalate
Any Signal
at MP 112
(X2400_Pin 14)
BT_ANT
Is
MOD 1 Freq.
minimum 230 KHz
higher then
MOD 0 Freq.
No
K630/V640:
SL 5 Replace
N1400
SL 4 Escalate
K660:
Replace
N1400
Yes
-20dBm at
MP 112 (X2400_Pin 14
BT_ANT)
(
±5dBm
)
Yes
Yes
All channels
passed
Replace
System Connector
X2400
and clean
X2400 Pins 13 and 14
at PBA
Yes
No
-10dBm at
MP 74 (Z1400_Pin 1)
(
±5dBm
)
No
SL 5 Replace
C1401 and L1403
SL 4 Escalate
Yes
-10dBm at
MP 72 (Z1400_Pin 5) and
MP 70 (Z1400_Pin 7)
(
±5dBm
)
No
No
SL 5 Replace
Z1400
SL 4 Escalate
Yes
26 MHz Signal
At MP 10 (R2118
BT_CLK)
No
No
2.7 Volt DC at
MP 37 (ST2212
VBT27)
Yes
1.8 Volt DC
At MP 33 (ST2208
VDDE18) and 2.7 Volt DC
at MP 38 (ST2213
VDIG)
Yes
No
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
Load ITP SW
Into the phone
Use TRS Fixture
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW
SL 5 Replace
D2105
SL 4 Escalate
More than
60KOhm between
MP 10 (R2118) and
PBA GND
Yes
No
START
Flash the phone with the
EMMA SUCR SW and retest the phone.
If successful claim SW Flashing
If not then continue with
Bluetooth problems TRS guide.
Fault trace SW
TX and RX
Bluetooth
Channel 0
Set MaxPwr MOD 0
Use
Spectrum Analyzer
Instrument settings:
Frequency: 2402 MHz
Span: 1MHz
Amplitude: -5dBm
Use Peak Search
Change the
Bluetooth channels
In Fault Trace SW
and test the output.
Use
Spectrum Analyzer
Span 10MHz
Use Peak Search when
changing the channel.
Note:
1MHz channel spacing
Fault Trace SW
TX and RX
Bluetooth
Channel 0
Set MaxPwr MOD 1
Use Spectrum Analyzer
with the previous
instrument settings
K630/V640:
SL 5 Replace
N1400
SL 4 Escalate
K660:
Replace
N1400
K630/V640:
SL 5 Replace
N1400
SL 4 Escalate
K660:
Replace
N1400
K630/V640:
SL 5 Replace
N1400
SL 4 Escalate
K660:
Replace
N1400
K630/V640:
SL 5 Replace
N1400
SL 4 Escalate
K660:
Replace
N1400
1215-3608 rev. 1
17
(96)
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