Bluetooth Problems - Sony Ericsson Aino - U10 Troubleshooting Manual

Bluetooth Problems part 1
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
General
Asic Revisions
Read All
Is the
Bluetooth (N1300)
Asic Revision
0x0,0xF2
No
2.7 Volt DC at
MP 29 (ST1303)
Yes
SL 4 Replace
26 MHz at
N1300
Yes MP 11 (R2108
SL 5 Replace
BT_WLAN_CLK)
N1500 or N2010
TROUBLESHOOTING
Go to
Yes

Bluetooth Problems

part 2
SL 5 Replace
No N2000
SL 4 Escalate
SL 4 Replace
N1300 or N1200
No
SL 5 Replace
N2100 or N2010
Bluetooth Problems
Bluetooth Problems part 2
START
NOTE !
Before starting this guide the Bluetooth Problems part 1
TRS guide must be finished.
Close the TRS SW
Disconnect: VBATT and DCIO/SEPI
Spectrum Analyzer
Instrument Settings:
Frequency: 2402 MHz
Span: 10 MHz
Amplitude: 20 dBm
Use Peak Search (MKR)
Connect the RF Cable Flexible to the Bt/Wlan RF
Connector on the TRS Fixture
Fault trace SW Settings:
TX and RX
Bluetooth
Static TX
Channel 0
Set MaxPwr 0
0 dBm at
Replace
Yes MP 30 (R1531)
N1510
(±5 dBm)
Replace
No
W1300 or N1300
SEMC Troubleshooting Manual
Aino - U10
Max
1 Ohm between
MP 48 (X1500_Pin IN) Replace
No
and MP 47 (X1500_Pin X1500
OUT)
Yes
Is
any of
Replace
X1501 or X1502 Yes
X1501 or X1502
Damaged
No
1: Use Spectrum Analyzer Instrument
with the RF Cable Flexible
2: Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
Is the
Replace
Blt MaxPwr
Yes Carrier Inner
0 dBm
Assembly
(±5 dBm)
No
Spectrum Analyzer:
Disconnect the RF Cable Flexible and
Connect the RF Probe to
Spectrum Analyzer Instrument
NOTE !
Do not use 10:1 Divider.
1235-5821 rev. 1 21 (57)