Bluetooth Problems; Wlan Problems - Sony Ericsson Cyber-Shot C905 Troubleshooting Manual

Bluetooth Problems

START
Step 1:
Flash the Phone with
EMMA SUCR SW
Max
and retest the Phone
0.5 Ohm between
If successful MP 29 (X1500_Pin 1) and
MP 23 (X1500_Pin 2)
claim SUCR SW Flash
If not go to step 2.
Step 2:
Continue with the
No
Bluetooth Problems TRS guide
Replace
X1500
Fault trace SW Settings:
TX and RX
Bluetooth
Channel 0
Turn Off
(This must be done before next
step)
Replace
Set MaxPwr MOD 1
X1530
NOTE!
Remember the Frequency
Yes
Is MP 21
Is the
(X1530_Pin 1)
Blt MaxPwr MOD 1
Short circuit to the PBA
Yes
0 dBm
GND (Shield
(±2 dBm)
Can Fence)
No
No
Is
MOD 1 Freq.
minimum 230 KHz Replace
No
higher than N1300
MOD 0 Freq.
Replace
WLAN/BT_Antenna
Yes or X1530
Change the
Bluetooth channels
Yes
from ch 0 to ch 78 by using the
Fault Trace SW and test
TX Output Power
Use:
Is the
Spectrum Analyzer
TX Output Power
Span 170 MHz
for all channels
BW: Auto
0 dBm
Amplitude: 10 dBm
(±2 dBm)
Connect SMK RF Probe to
X1500 RF Connector on PBA
NOTE! Use Peak Search when
changing the channel to get
No
correct TX Power value
NOTE! 1 MHz channel spacing
Replace
N1300
SL 4 Replace
N1300
SL 5 Replace
N2100
TROUBLESHOOTING
1: Load ITP SW into the Phone
2: Disconnect: WLAN/BT Spectrum Analyzer
Antenna from the X1530 Instrument Settings:
3: Use TRS Fixture Frequency: 2402 MHz
Connect: Span: 10 MHz
Yes
VBATT and DCIO/SEPI Amplitude: 10 dBm
4: Connect RF Cable Flexible Use Peak Search (MKR)
with SMK RF Probe to Connect SMK RF Probe to
Spectrum Analyzer instrument X1500 RF Connector on PBA
5: Use Fault Trace SW
Fault trace SW Settings:
TX and RX
Bluetooth
Is the
Channel 0
Blt MaxPwr MOD 0
Set MaxPwr MOD 0
Yes
0 dBm
(±2 dBm)
NOTE!
Remember the Frequency
No
Disconnect
SMK RF Probe
and connect RF Probe to
Spectrum Analyzer instrument
NOTE! Do not use 10:1 Divider
Frequency: 2402 MHz
Span: 10 MHz
Amplitude: 10 dBm
NOTE! Use Peak Search (MKR)
to get correct TX Power value
0 dBm at
MP 48 (C1502 Replace
Yes
BT_ANT)
N1510
(±2 dBm)
No
0 dBm at
SL 5 Replace
MP 28 (W1300_Pin 3)
W1300
Yes
and MP 27 (W1300_Pin 4)
SL 4 Escalate
(±2 dBm)
No
SL 4 Replace
2.7 Volt DC at
N1300
MP 26 (ST1302
No
SL 5 Replace
VBT27)
N2000
Yes
26 MHz Signal SL 5 Replace
At MP 22 (ST2106 N2010
No Yes
BT_CLK) SL 4 Escalate
Bluetooth Problems - WLAN Problems
START
NOTE !
This TRS guide is NOT valid for
C905c Phones
Max
Step 1:
0.5 Ohm between
Flash the Phone with
MP 29 (X1500_Pin 1) and
EMMA SUCR SW MP 23
(X1500_Pin 2)
and retest the Phone
If successful
claim SW Flashing
If not then go to Step 2.
No
Step 2:
Continue with the
Replace
WLAN Problems TRS guide
X1500
Replace
WLAN/BT_Antenna
or X1530
Replace
Yes
N1510
3.3V – 3.5V DC
Replace
At MP 46 (ST2310
No
N2300
WLAN_VO33)
Yes
Is there
any signal
at MP 47 (N1500)
No
1.8 Volt DC at
Replace
MP 85 (R2313
No
N2410
WLAN_PDn)
Claim Componenet
N2100
Yes
Is the
SL 5 Replace
WLAN
N2100
Problem solved
SL 4 Escalate
No
SL 5 Replace SL 5 Replace
N2010 V2100
SL 4 Escalate SL 4 Escalate
SEMC Troubleshooting Manual

WLAN Problems

1: Load ITP SW into the Phone
Spectrum Analyzer
2: Use TRS Fixture
Instrument Settings:
Connect:
Frequency: 2442 MHz
VBATT and DCIO/SEPI
Span: 10 MHz
3: Connect RF Cable Flexible
Amplitude: 20 dBm
Yes
with SMK RF Probe to
Use Peak Search (MKR)
Spectrum Analyzer instrument
4: Use Fault Trace SW
SMK RF Probe to
X1500 RF Connector on PBA
NOTE! The WLAN/BT_Antenna
must be connected to X1530
Is WLAN Fault trace SW Settings:
TX Output Power TX and RX
Yes
13 dBm
(±5 dBm) Wlan Settings
WLAN Turn On
No
1: Disconnect:
SMK RF Probe from the PBA
and from the Spectrum Analyzer
instrument
2: Connect: RF Probe to the
Spectrum Analyzer instrument
NOTE! Do not use 10:1 Divider
Use Peak Search (MKR) and
Measure
WLAN TX Output Power
on top of the N1500 component
NOTE! Do NOT touch the N1500
component with the RF Probe
to avoid component damaging
Check the Following Voltages:
1.9V DC at MP 45 (ST2311)
Yes
1.8V DC at MP 44 (ST2312)
3.0V DC at MP 43 (ST2313)
1.8V – 2V DC at 26 MHz Signal
MP 50 (V2100_Pin 1 At MP 24 (ST2105
Yes No
WLAN_CLKREQ) WLAN_CLK)
No
Is
SL 5 Replace
MP 49 (V2100_Pin 3)
Short circuit to the PBA
Yes No
GND (Shield SL 4 Escalate
Can Fence)
1222-9526 rev. 1
C905
Connect
WLAN
Replace
N2300
No
Are the
voltages
Ok
Yes
Yes
N1500
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