Wlan Problems; Gsm Network Problems - Sony Ericsson W995 Troubleshooting Manual

WLAN Problems

Flash the Phone with the EMMA SUCR SW and retest the Phone
Use RF Cable Flexible with SMK RF Probe connected
Connect SMK RF Probe to the X1500 RF Connector on PBA
Replace 1.8 Volt DC
No No
N2410 At MP 75 (R2313)
Yes
Disconnect:
VBATT and DCIO/SEPI
Disconnect:
RF Cable Flexible
Max
0.5 Ohm between
Replace
No
MP 86 (X1500_Pin 1) and
X1500
MP 87 (X1500_Pin 2)
SL 5 Replace
N1500 Yes
SL 4 Escalate
TROUBLESHOOTING
START
Step 1:
If successful claim SW Flash
If not go to Step 2.
Step 2:
Load ETS SW into the Phone
Use the TRS Fixture
Use Spectrum Analyzer Instrument
to the Spectrum Analyzer Instrument
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
Continue with the
WLAN Problems TRS guide
Spectrum Analyzer
Instrument Settings:
Frequency: 2442 MHz
Span: 10 MHz
Amplitude: 20 dBm
Use Peak Search (MKR)
Fault trace SW Settings:
TX and RX
WLAN
Wlan Settings
WLAN Turn On
Use Peak Search (MKR)
Is the
WLAN
Replace
TX Output Power Yes
BT GPS Antenna
11 dBm
(±5 dBm)
WLAN Problems - GSM Network Problems

GSM Network Problems

START
Step 1:
Replace Main Antenna and retest the Phone
If successful claim Main Antenna
If not go to Step 2.
Step 2:
Load ETS SW into the Phone
Perform SERP Calibration and retest the Phone
If successful claim SERP Calibration
If not go to Step 3.
Step 3:
Disassemble the Phone and continue with the
GSM Network Problems TRS guide
Are
X1000, X1004
Replace
No X1005,or X1006
Faulty Component
connected to
GND
Yes
Max 1 Ohm
SL 5 Replace
between
L1203, L1205 or
No MP 116 (X1200_Pin 2)
R1206
and MP 114
SL 4 Escalate
(TP1210)
SL 5 Replace
N2010 or N2000
SL 4 Escalate
SEMC Troubleshooting Manual
Max 1
Ohm between
Replace
Yes MP X1200_Pin 1 and No
X1200
MP X1200_Pin 2
Max 1 Ohm
SL 5 Replace
between
Yes MP 116 (X1200_Pin 2) No R1207
and MP 115 SL 4 Escalate
(TP1211)
Yes
Replace
N1200
Is the
GSM Network Claim Component
No Yes
Problem N1200
solved
1230-1858 rev. 1
W995
28 (125)