W995
1230-1858 rev. 1
TROUBLESHOOTING
WLAN Problems
T
R
O
UBL
ESHOOT
ING
- GSM Network Problems
START
Step 1:
Flash the Phone with the EMMA SUCR SW and retest the Phone
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
Use RF Cable Flexible with SMK RF Probe connected
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)
Connect SMK RF Probe to the X1500 RF Connector on PBA
Fault trace SW Settings:
TX and RX
WLAN
Wlan Settings
WLAN Turn On
Use Peak Search (MKR)
Is the
WLAN
TX Output Power
11 dBm
(
±5 dBm)
No
No
Yes
1.8 Volt DC
At MP 75 (R2313)
Replace
N2410
No
Disconnect:
VBATT and DCIO/SEPI
Disconnect:
RF Cable Flexible
Yes
Max
0.5 Ohm between
MP 86 (X1500_Pin 1) and
MP 87 (X1500_Pin 2)
Replace
X1500
SL 5 Replace
N1500
SL 4 Escalate
Yes
Replace
BT GPS Antenna
WLAN Problems
Max 1
Ohm between
MP X1200_Pin 1 and
MP X1200_Pin 2
Replace
X1200
No
Are
X1000, X1004
X1005,or X1006
connected to
GND
Yes
Replace
Faulty Component
No
Yes
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
Max 1 Ohm
between
MP 116 (X1200_Pin 2)
and MP 114
(TP1210)
SL 5 Replace
L1203, L1205 or
R1206
SL 4 Escalate
No
Replace
N1200
Yes
Is the
GSM Network
Problem
solved
Claim Component
N1200
Yes
SL 5 Replace
N2010 or N2000
SL 4 Escalate
No
Max 1 Ohm
between
MP 116 (X1200_Pin 2)
and MP 115
(TP1211)
SL 5 Replace
R1207
SL 4 Escalate
No
Yes
GSM Network Problems
SEMC Troubleshooting Manual
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(125)