Sony Ericsson W890 Programming manual

SEMC Troubleshooting Manual
W890
Troubleshooting Manual
W890
1217-3942 rev. 1 1(119)
APPENDIXCOMPONENT OVERVIEW FUNCTIONAL OVERVIEW
ABOUT
ABOUT TROUBLESHOOTING MEASUREMENT POINTS

ABOUT Contents SEMC Troubleshooting Manual
W890
ABOUT
General information
The purpose of this document is to provide enhanced technical information for Sony Ericsson
repair technicians in order to assist during service, repair and troubleshooting operations on Sony
Ericsson mobile phones. It should be used as a complement to other repair instructions and tools
as notified by the local Sony Ericsson representative.
To search for components throughout the entire document use the “search” function in Adobe
Acrobat Reader 7.0 (or later version) and enter the component name or other word. Use zoom to
enlarge.
For easier navigation of the document you can use the bookmarks that appear in the Bookmarks
tab on the left side of the Adobe Acrobat Reader window. Each bookmark jumps to a page in the
document.
Disclaimer
This document is Sony Ericsson confidential and should be treated as confidential in accordance
with the agreement with Sony Ericsson. This document is intended for use by authorized service
technicians only. Sony Ericsson is not to be held responsible for any damages or losses caused
intentionally or unintentionally due to unauthorised use of the information in this document.
Revision History
Rev. Date Changes / Comments
09/01/2008Inititalrevision.
ABOUT
About 2
Contents 2
TROUBLESHOOTING
Equipment List 3
On/Off Problems 8
Flash Problems 8
Dead Phone Problems 9
Display Problems 10
Display Illumination Problems 11
Key Problems part 1 11
Key Problems part 2 12
LED Problems 12
Main and VGA Camera Problems 13
Vibrator Problems 13
Charging Problems 14
USB/VBUS Charging Problems 14
SIM Problems 15
Memory Stick Problems 15
Audio Internal Problems 16
Audio External Problems 16
FM Radio Problems 17
Bluetooth Problems 17
GSM Network Problems 18
WCDMA Network Problems 19
System Connector Protection Test 20
Current Consumption Test 20
Battery and Current Calibration Test 22
Backup Capacitor Test 22
Charging Test 23
ASIC Revision Test 23
Antenna Switch Test 24
Reference Measurement Points 25
Measurement Points Pictures 26
MEASUREMENT POINTS
Front Side 39
Back Side 40
SIM FPC 41
Top Schematic 42
Audio Top 43
Audio Analog 44
Audio Digital 45
Audio FM Radio 46
Performance & Applications Top 47
System Top 48
System Control - Clocks & Resets 49
System - Memories 50
System - PoP Interface 51
Power Top 52
Power - Regulators & Charging 53
Power - Camera 54
Power - ASICs 55
Power - Memories 56
Connectivity Top 57
Connectivity - ADC & I2C 58
Connectivity - Cards 59
Connectivity - USB, SYScon 60
Connectivity - Keypad 61
Imaging Top 62
Imaging - Display 63
Imaging - Camera 64
Access Top 65
Access - GSM & UMTS 66
Access - GSM Top 67
Access - GSM PA 68
Access -GSM Edge RX 69
Access - UMTS Top 70
Access - UMTS Control 71
Access - UMTS Duplex 72
Access - UMTS RX 73
Access - UMTS Synthesizer 74
Access - UMTS PA 75
Access - Bluetooth 76
Test 77
COMPONENT OVERVIEW
Front Side 78
Back Side 79
FUNCTIONAL OVERVIEW
Technical Description 80
Block Diagrams 89
APPENDIX
Replaceable Parts 91
Components - B1260, B2100, B3100 92
Components - D2105, D2400, L2200 93
Components - L2401-02 93
Components - L2403-04, L2407-08 93
Components - L2405-06, N1200, N1230 94
Components - N1300, N1380 95
Components - N1400, N2201, N2202 96
Components - N2203, N2204 97
Components - N2205, N2402 97
Components - N2424, N3100 98
Components - N3101, N4201 98
Components - V2202, V2402 98
Components - V2405, V2420 98
Components - X1100, X1203, X1400 99
Components - X2200, X2400 99
Components - Z1230 100
Components - Z4200, Z4201, Z4202 100
Components - Display 100
Components - Camera Flex Module 101
Components - SIM M2 Flex Module 102
Components - Key FPC 103
Troubleshooting Software Documentation 104
Troubleshooting Fixture Setup Instructions 111
Setup & Maintenance Instruction 113
for W890 TRS Fixture
ABOUT
1217-3942 rev. 1 2(119)
1

SEMC Troubleshooting Manual
TROUBLESHOOTING Equipment List W890
W890 Equipment List
Note: More additional information about the equipment used for TRS can be found in Repair
Tools Catalogue on CSPN or on the following location: CSPN – Repair Instructions – Electrical –
W890 – Equipment List.
TRS Fixture Kit
Location: CSPN-Repair Instructions-Electrical-W890-Equipment List
Dummy Battery
Location: CSPN-Repair Instructions-Electrical-W890-Equipment List
Part number: NTZ 112 533
Instruments
Power Supply Channel 1 VBATT
Agilent 6632B or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Instrument Settings:
Voltage: 3.8 Volt
Limiter: 2A
Note: During the calibration the accurate voltage from the VBATT must be within ±0.015 V. If
this is not fulfilled it will result in a faulty calibration. (For more information about
recommended power supply units, see the Repair Tool Catalogue on CSPN under the Mechanical
level. The Power Supply Channel 1 VBATT must allow reverse current.
Note: Maximal cable length between the Power Supply Channel 1 VBATT and the dummy
battery must be maximum 1m. The cable must have a capacity for at least 16A.
Note: It is very important to follow instrument settings instructions when performing the
Battery Calibration Test.
Power Supply Channel 2 DCIO/SEPI
Agilent 6632B or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Instrument Settings:
Voltage: 5.0 Volt
Limiter: 2A
Note: It is very important to follow instrument setting instructions when performing the
Current Calibration Test.
Oscilloscope
Tektronix TDS 2012 or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Digital Multimeter (DMM)
Fluke 83 or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
The 0, 64 mm Test Probes is recommended by Sony Ericsson when DMM is in use see picture 1.
Picture 1
Spectrum Analyzer
HP 8595E or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
RF probe
HP 85024A or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Mobile Phone Tester
Yokogawa VC230 or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
FM Signal Generator
Agilent E4433B or similar
Location: -
1217-3942 rev. 1 3(119)
TROUBLESHOOTING

SEMC Troubleshooting Manual
TROUBLESHOOTING Equipment List W890
RF Adaptor
Adaptor 33 N-BNC-50-1
Adaptor to Signal Generator RF Output
See Picture 2
Location: -
Picture 2
PC Package & PC Software
PC Package (Computer)
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Urquell Fault Trace SW with project file
Location: CSPN-Repair Instructions-Electrical-W890-Trouble Shooting Application
Project File: W890 Project_R1A
Drivers
SEPI BOX Drivers
Location: EMMA III-Drivers-SEPI
SE Communication Interface SEPI BOX
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: LTN 214 1484
See Picture 3.
Picture 3
Cables
USB Computer Cable
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
See Picture 4.
Picture 4
DSU-60/USB Cable
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: KRY 101 1413
RF Test Cable Flexible
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: RPM 119 885
See Picture 5.
Picture 5
SEPI Interface Cable – A1
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: KRY 101 1119/1
See Picture 6.
Picture 6
1217-3942 rev. 1 4(119)
TROUBLESHOOTING

SEMC Troubleshooting Manual
TROUBLESHOOTING Equipment List W890
Power Cable RED to Power Supply Channel 1 VBATT
Maximum Length: 1m
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Power Cable BLACK to Power Supply Channel 1 VBATT
Maximum Length: 1m
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Customized Power Supply Channel 2 DCIO/SEPI Cable
To perform Current Calibration the phone must be supplied directly through the system
connector. Customize the cable according to following instructions:
STEP 1:
Take the CST-75 battery charger and cut of the charger according to Picture 7.
Picture 7
Note: Cable length must be exact 1.3m.
STEP 2:
Connect the CST-75 charger Red or White wire to the Plus Output and the Black wire to the
Minus (GND) Output at Power Supply Channel 2 DCIO/SEPI according to Picture 8.
Picture 8
STEP 3:
Cut of isolation material from inside of the charger plug according to Picture 9.
Picture 9
STEP 4:
Connect DCIO and SEPI Interface Cable – A1 cables according to Picture 10.
Picture 10
Wrong setup.
Picture 11
Power Supply Channel 2 DCIO/SEPI Cable Connection Setups
Correct DCIO/SEPI Cable setup when TRS Fixture is used.
Picture 12
Note: Example of DCIO/SEPI and K750 TRS Fixture Setup.
1217-3942 rev. 1 5(119)
TROUBLESHOOTING

SEMC Troubleshooting Manual
TROUBLESHOOTING Equipment List W890
Correct DCIO/SEPI Cable setup when the Dummy Battery is used.
Picture 13
Picture 14
Customized FM Radio Cable
STEP 1:
Use Cable according to Picture 15
Picture 15
Product Name: Test lead BNC-4mm 1,5m
Product Description: Test lead with 4 mm lab plugs at one end and a BNC plug at the other.
Manufacturer: PMK Germany
Location: http://www.elfa.se/en/ or other supplier.
Part number: 46-310-40 (Note: This is ELFA part number)
STEP 2:
Cut the Red lab plug according to Picture 16
Picture 16
STEP 3:
Use any Hands free (PHF) Cable and cut according to Picture 17
Picture 17
Note: Minimum Cable length 40 cm.
STEP 4:
Use only wire connected to Pin2 and cut all rest wires according to Picture 18.
Use digital multimeter instrument (DMM) and perform diode measurement to select wire
connected to Pin2 at hands free system connector plug.
Picture 18
1217-3942 rev. 1 6(119)
TROUBLESHOOTING

TROUBLESHOOTING
STEP 5:
Connect by soldering cable from Picture 16 and cable from Picture 18 according to Picture 19.
Picture 19
Test Cards
Local SIM
Any functional Local SIM Card, see Picture 20
Picture 20
Test SIM GSM/UMTS
One Test SIM GSM/UMTS is needed to perform Current Consumption Test, see Picture 21.
Location: To buy a Test SIM GSM/UMTS, please contact your supplier of test equipment.
Picture 21
Sony Memory Stick M2
Any functional Memory Stick Micro M2 Card, see Picture 22
Picture 22
Equipment ListEquipEquipment Listment List SEMC Troubleshooting Manual
W890
Rohde & Schwarz RF Shield Package (Box)
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: -
Picture 23
SMK RF Probe
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: SXA 109 6356
Picture 24
RF Adapter for RF Sheild Box
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: -
See picture 25.
Picture 25
TROUBLESHOOTING
1217-3942 rev. 1 7(119)

SEMC Troubleshooting Manual
TROUBLESHOOTING On/Off Problems - Flash Problems W890
On/Off Problems
START
Step 1:
Perform System Connector Protection Test
If successful go to step 2.
Step 2:
Phone with Normal SW
Use TRS Fixture
Connect:
Display, Keyboard Flex Module and VBATT
and try to Flash the phone by using
EMMA III SW
Is the phone
Indicate charging 5 Volt DC at MP 131 (C2414) NoYes SL 5 Replace
R2434
SL 4 Escalate
Power Up the Phone
USB Cable From PC
Flash process
Start-up when using
Connect
EMMA III SW
No
Yes
Download
ITP SW by using
Passed
EMMA III SW
Is Download Yes SL 5 Replace
D2020
SL 4 Escalate
No
Flash Problems
TROUBLESHOOTING
1. Customize the phone into DPY/Z
2. Startup the phone and wait for
the configuration to take place
(takes less than a minute)
3. Customize with correct CDA
4. Activate the phone
No
No
START
Use
Dummy Battery (VBATT)
Go to
Dead phone
Problems part 1
Yes
No
No
Connect a chargerNo
Yes
Go to
Key Problems
Yes
Go to
Dead Phone
Problems part 1
Yes
Yes
Go to
System Connector
Protection Test..
After this go to
Flash Problems
Yes
Yes
NoYes
No
Is the phone
consuming more than
1mA when the phone
is powered off
Is it possible to
power on the phone
Is the
phone consuming
any current when
powering on the
phone
Problem
solved
Is the phones
behavior as normal
Optimized
charging
Flash process
started
Flash
The phone with
ITP software
successful
Problem
solved
Is it possible to power
off the phone
Yes
Go to
Current
Consumption Test
After this go to
Charging Test.
Yes
No
Claim for a
SW Upgrade
Yes
No
No
Go to
Flash Problems
No
No
Is the current
consumption between
10mA to 70mA
Press
2 and 5
Connect USB
Run Pre-config 1 and 2
Run DPY/Z
Successful
Flash
CDA Software
Flash
Successful
Flash
the phone with
correct CDA
software
Yes
No
SL 5 Replace
Z2400
SL 4 Escalate
Yes
Yes
Max
2 Ohm between
MP 127 (X2400_Pin 10)
and MP 126
(Z2400_Pin 3)
No
Yes
No
Go to
USB/VBUS
Charging Problems
No
3.3 Volt
Pk-Pk Pulses at
MP 124 (C2436)
Yes
1.8 Volt
Pk-Pk Pulses at
MP 112 (C2434)
Disconnect the
phone from the
TRS Fixture
1.8 Volt DC
at
MP 97 (R2448)
SL 5 Replace
D2000
SL 4 Escalate
No
Replace
D2400
Yes
Max
0.5 Ohm between
MP 127 (X2400_Pin 10)
and MP 125
(Z2400_Pin 2)
No
Max
2 Ohm between
MP 129 (X2400_Pin11)
and MP 130
(Z2400_Pin 4)
Yes
Max
0.5 Ohm between
MP 129 (X2400_Pin 11)
and MP 130
(Z2400_Pin 1)
No Replace
System Connector
X2400
Replace
System Connector
X2400
SL 5 Replace
Z2400
SL 4 Escalate
Yes
No
Replace
N2424
Yes
Problem
solved Claim Component N2424
Yes
SL 5 Replace
D2000
SL 4 Escalate
No
1217-3942 rev. 1 8(119)

TROUBLESHOOTING Dead Phone Problems SEMC Troubleshooting Manual
W890
START
Step 1:
Try to recover the phone by
using EMMA III SW
Press key 2 and 5
Connect USB Cable to the phone
Run pre-config 1 or 2
Run DPY/Z
If successful claim SW Flash
If not continue with step 2.
Step 2:
Use TRS Fixture
Connect Only: VBATT
Is the
current consumption
more than 1mA
Try to trace faulty
component by using
the freezing spray
Is
N1230 or N1380
getting hot
Replace
N1230 or N1380 Yes
No
Is the
current consumption
still more than
1mA
No
Yes
No
Yes
Connect
DCIO/SEPI
to the Phone
32 kHz
RTCCLK at
MP 73 (R2199) No
Yes
SL 4 Replace
B2100
if not successful then
Escalate to SL 5
SL 5 Replace
B2100 if not
successful then
Replace N2000
0 Volt DC
Between Power
Supply GND and
Shield Can
Fence
Yes
SL 5 Replace
R2200
SL 4 Escalate
No
26 MHz
MCLK at
MP 37 (R2100)
Check following voltages:
2.5V MP 79 (C2216 VANA25)
1.2V MP L2200 VCORE12
1.8V MP 82 (C2239 VCORE18)
2.7V MP 81 (C2205 VBT27)
2.6V MP 115 (C2209 VAUDIO26)
2.7V MP 116 (C2215 VDIG)
2.2V MP 69 (X2402_Pin A4
VBACKUP)
1.8V DC at
MP 21 (R1261
VDDE18) and 2.8V DC
at MP 19 (R1260
VccA)
No
No
26 MHz
at
MP 17 (R1263) Yes
Replace
N1200
Replace
B1260
Yes
No
Yes
All voltages
Ok
Disconnect
VBATT and DCIO/SEPI
Connect: Display and
Keypad FPC to the PBA
Connect: VBATT
Activate EMMA III SW
Press the ”C” key and
connect USB Cable
Flash the Phone with
the ITP SW
Yes
ITP SW Flash
Successful
SL 5 Replace
D2020
SL 4 Escalate Yes
Go to
Flash Problems No
Current
Consumption more
than 50mA
No
SL 5 Replace
N2000
SL 4 Escalate
No
SL 5 Remove
N2000
SL 4 Escalate
VANA25
Voltage
Ok
Go to
Dead Phone
Problems part 2
Yes
Is the
any of C2216 or
C2336 to C2330
Short circuit or
N2202 Getting
hot
YesNo
SL 5 Replace
N2000
SL 4 Escalate No
SL 4 Replace
N2202
SL 5 Replace
C2216 or
C2236 to C2330
Yes
SL 5 Replace
N2000
SL 4 Escalate
Try to trace faulty
component by using
the freezing spray
Dead Phone Problems part 1
No
VCORE18
Voltage
Ok
START
Dead Phone Problems part 2
NOTE !
Before following this guide
the Dead Phone Problems
part 1 TRS guide must be
finished!
Yes
Is
the any of
C2342 to C2347
Short circuit or
D2000 Getting
hot
No
Replace
N2202
No
Yes SL 5 Replace
Faulty Component
SL 4 Escalate
1.8 Volt DC
at MP 83
(N2202_Pin 3)
SL 5 Replace
C2239
SL 4 Escalate
Yes
3.8 Volt DC
at MP 84 (N2202_Pin1)
and MP 86 (N2202_Pin4)
No SL 5 Replace
C2238 and N2202
SL 4 Escalate
Yes
No
VCORE12
Voltage
Ok
Is the
MP 100 (R2299)
Short circuit to
Shield Can
Fence
1.2 Volt DC
at MP 103
(V2206_Cathode)
SL 5 Replace
L2201 and C2226
SL 4 Escalate
No
Yes
No 3.8 Volt DC
at MP 104 (L2201) No
SL 5 Replace
V2206 or N2000
SL 4 Escalate
SL 5 Check
C2220,C2219,V2206,
C2240,C2222,C2221
C2301 to C2305
C2307,C2308,C2311
C2314 to C2316
C2318,C2319,
C2322,C2324,D2000
SL 5 Replace
Faulty Component
and L2200
SL 4 Escalate
Replace
L2200
Yes
Yes
VBT27
Voltage
Ok
Is
the any of
C2205 or C1409, Short
circuit or
N1400 Getting
hot
No
SL 4 Replace
N1400
SL 5 Replace
C2205 or C1409
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Yes
Go to
Dead Phone
Problems part 3
Yes
Dead Phone Problems part 2
1217-3942 rev. 1 9(119)
TROUBLESHOOTING

TROUBLESHOOTING Dead Phone Problems - Display Problems SEMC Troubleshooting Manual
W890
Display Problems
No
Yes
Go to
Display illumination
Problems
Fault trace SW
MMI
Display pattern
Display Backlights Init Screen Testing
Ok Activate:
RGB Color Pattern
START
Step 1:
Use TRS Fixture
Connect:
Display, Keyboard Flex Module and VBATT
If Display working properly at the
TRS Fixture then replace Display
If not then continue with step 2.
Step 2:
Load ITP SW into the phone
Connect: DCIO/SEPI
and continue with
Display problems TRS guide
TROUBLESHOOTING
No
VDIG
Voltage
Ok
START
Dead Phone Problems part 3
NOTE !
Before following this guide
the Dead Phone Problems
part 2 TRS guide must be
finished!
Is
the any of
C2215,C1407
Short circuit or
N1400 Getting
hot
No Yes
SL 4 Replace
N1400
SL 5 Replace
C2215 or C1407
No
VAUDIO26
Voltage
Ok
Is the
MP 115 (C2209)
Short circuit to
Shield Can
Fence
No
SL 4 Check and Replace
N2400, V2405 or X4201
SL 5 Check and Replace
N2000,C2209,C2400
C2473,V2406,C4213,
C3135 or C3136
Yes
Yes
VBACKUP
Voltage
Ok No SL 5 Replace
C2218
SL 4 Escalate
Yes
Yes
SL 5 Replace
N2000
SL 4 Scrap
SL 5 Replace
N2000
SL 4 Escalate
2.2 Volt DC
at MP 74 (C2218)
Is
C2218
Short circuit
No
SL 5 Replace
N2000
SL 4 Escalate
Yes
No
Is
R2204 ~ 4.7 KOhm Replace
X2402
Yes
SL 5 Replace
R2204
SL 4 Escalate
No
Disconnect
VBATT and DCIO/SEPI
Connect: Display and
Keypad FPC to the PBA
Connect: VBATT
Activate EMMA III SW
Press the ”C” key and
connect USB Cable
Flash the Phone with
the ITP SW
ITP SW Flash
successful
SL 5 Replace
D2020
SL 4 Escalate
Yes
Go to
Flash Problems
No
Disconnect
VBATT and DCIO/SEPI
Yes
Dead Phone Problems part 3
No
1.8 Volt DC
at MP 31 (C4227) and
0 Volt DC at
MP 33 (C4228)
Yes
Yes
SL 5 Replace
N2000
SL 4 Escalate
1.8 Volt DC
at MP 30 (C4214) and
2.6 Volt DC at
MP 29 (C4213)
No SL 5 Replace
D2000
SL 4 Escalate
1.8 V
DC Pk-Pk
at MP Z4200_Pins 5,6,7,8
short after TV Test
was activated
Replace
Z4200
No
1.8 Volt DC at
MP Z4202_Pins
5,6,7,8
Yes
1.8 V
DC Pk-Pk
at MP Z4200_Pins 1,2,3,4
short after TV Test
was activated
SL 5 Replace
D2000
SL 4 Escalate No
Yes
1.8 Volt DC at
MP Z4202_Pins
1,2,3,4
1.8 V
DC Pk-Pk
at MP Z4201_Pins 5,6,7,8
short after TV Test
was activated
1.8 V
DC Pk-Pk
at MP Z4200_Pins 1,2,3,4
short after TV Test
was activated
No
SL 5 Replace
D2000
SL 4 Escalate No
Replace
Z4201
Yes
No
SL 5 Replace
D2000
SL 4 Escalate No
Replace
Z4202
Yes
Turn off the phone
Disconnect: Display and Keypad
Start the phone and go to:
Fault trace SW
MMI
Display pattern
Init Screen Testing
Activate: TV Test Pattern
0 Ohm
Between
MP Z4200_Pins
5,6,7,8 and
TRS Fixture
GND
Yes
No
0 Ohm
Between
MP Z4201_Pins
5,6,7,8 and
TRS Fixture
GND
No
Yes
0 Ohm
Between
MP Z4202_Pins
5,6,7,8 and
TRS Fixture
GND
No
Yes
Yes
Yes
Replace
X4201
1217-3942 rev. 1 10 (119)

TROUBLESHOOTING Display Illumination Problems - Key Problems part 1 SEMC Troubleshooting Manual
W890
Display illumination Problems Key Problems part 1
START
Step 1:
Replace Display and retest the phone. If
successful claim Display if not go to step 2.
Step 2:
Replace Camera Flex Module and retest
the phone. If successful claim
Camera Flex Module if not go to step 3.
Step 3:
Load ITP SW into the phone
Use TRS Fixture
Connect: Display and Camera Flex Module
Connect: VBATT and DCIO/SEPI
and continue with
Display illumination problems TRS guide
Display Backlights
Ok
No
3.8 Volt DC at
MP 105 (L4201)
Use Fault trace SW
MMI
Misc
Init Screen Testing
Activate
Display Backlight
Yes
Replace
X4300
3.0 Volt
Pulses at
MP 90 (C2224 VOPTO30)
Shortly after phone
Power On
Replace
N2201
No
1.8 Volt
Pulses at
MP 89 (N2201_Pin 3)
Shortly after phone
Power On
Yes
More than
2.0 Volt Pulses at
MP 51 (V4201)
Shortly after phone
Power On
Yes
No
Flash with
EMMA SUCR SW Yes
No
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
L4201
SL 4 Escalate
No
More than
5.0 Volt Pk-Pk
Pulses at MP 107 (L4200)
shortly after Display
backlight
Is set
Yes
Is
L4200
Max 0.8 Ohm No
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
L4200
SL 4 Escalate
No
Yes
More than
15 Volt Pk-Pk
Pulses at MP 102 (C4202)
shortly after Display
backlights
Is set
Yes
Replace
N4201
No
0 Volt DC at
MP 77 (V4205_Pin C)
When Display
Backlight is
set
Yes
No SL 5 Replace
V4205 or N2000
SL 4 Escalate
Replace
X4201 Yes
Yes
Problem with
Phone On
3.7 Volt DC
At MP 41
(V2402_Cathode)
Press the
On/Off Key at
Camera Flex Module
Yes
0 Volt DC at
MP 41
(V2402_Cathode)
Replace
X4300
No
Yes
Disconnect the
Camera Flex Module
No
3.7 Volt DC
at MP 41
(V2402_Cathode) No
Replace
Camera Flex Module
Yes
Problem with
Phone Off
Replace
V2402
No
Yes
Problem with
Volume Down/Up
or Walkman
key
No
1.8 Volt DC
At MP 42 (C2464)
Yes
Press the
Volume Down/Up or
Walkman key
at
Camera Flex Module
Yes
0 Volt DC
At MP 42 (C2464)
SL 5 Replace
D2000
SL 4 Escalate Yes Replace
Camera Flex Module
or X4300
No
Problem
with ”Soft right”,
”Clear”,”Camera” or
”Rock right”
Key
START
Use TRS Fixture
Connect:
Display, Keyboard Flex Module,
Camera Flex Module,
VBATT and DCIO/SEPI
SL 5 Replace
N2000
SL 4 Escalate
No
1.8 Volt DC
At MP 24 (C2463)
SL 5 Replace
C2463, R2468
or D2000
SL 4 Escalate
No
Press the
Camera Key at the
Keypad FPC
Yes
0 Volt DC
At MP 24 (C2463)
SL 5 Replace
D2000
SL 4 Escalate
Yes
Replace
Keypad FPC
or X2401
No
No
Yes
No
Go to
Key Problems part 2
1217-3942 rev. 1 11 (119)
TROUBLESHOOTING

SEMC Troubleshooting Manual
TROUBLESHOOTING Key Problems part 2 - LED Problems W890
Problem
with ”End red”,
”1”,”2”, ”3" or
”Rock push”
Key
1.8 Volt DC
At MP 25 (C2462)
Yes
Press the
Key ”3" at the
Keypad FPC
Yes
0 Volt DC
At MP 25 (C2462)
SL 5 Replace
V2428 or D2000
SL 4 Escalate
Yes
SL 5 Replace
C2462, R2469
or D2000
SL 4 Escalate
No
Problem
with ”Send green”
”7”,”8”, ”9" or
”Rock left”
Key
No
1.8 Volt DC
At MP 26 (C2461)
Yes
SL 5 Replace
C2461, R2470
or D2000
SL 4 Escalate
No
Replace
Keypad FPC
or X2401
No
Press the
Key ”9" at the
Keypad FPC
Yes
0 Volt DC
At MP 26 (C2461)
SL 5 Replace
V2432 or D2000
SL 4 Escalate
Yes
Replace
Keypad FPC
or X2401
No
Problem
with ”Act” ”4”,”5”,
”6" or ”Rock up”
Key
No
1.8 Volt DC
At MP 27 (C2460)
Yes
SL 5 Replace
C2460, R2471
or D2000
SL 4 Escalate
No
Press the
Key ”6" at the
Keypad FPC
Yes
0 Volt DC
At MP 27 (C2460)
SL 5 Replace
V2424 or D2000
SL 4 Escalate
Yes
Replace
Keypad FPC
or X2401
No
Problem
with ”Soft left”
”*”,”0”, ”#" or
”Rock down”
Key
No
1.8 Volt DC
At MP 28 (C2459)
Yes
SL 5 Replace
C2459, R2472
or D2000
SL 4 Escalate
No
Press the
Key ”#" at the
Keypad FPC
Yes
0 Volt DC
At MP 28 (C2459)
SL 5 Replace
D2000
SL 4 Escalate
Yes
Replace
Keypad FPC
or X2401
No
Key problems part 2
NOTE !
Before doing this the
Key Problems part 1
TRS guide must be
finished
Key Problems part 2
LED Problems
Display
Backlight
Ok
START
Load ITP SW into the phone
Use TRS Fixture
Connect: Camera Flex Module,
Keyboard Flex Module, Display,
VBATT and DCIO/SEPI
Use Fault Trace SW
MMI
Activate:
Display Backlight
Upper Keypad, Middle Keypad
and Lower Keypad LED
Charge LED and Tally LED
No Go to
Display illumination
Problems
Problem with
Charge LED
Yes
Replace
Keypad FPC
or X2401
No
Yes
More than
1.8 Volt DC at
MP 23
(V2207_Cathode) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Disconnect the
Keypad FPC
Problem with
Tally LED
Replace
Camera Flex Module
or X4300
No
Yes 0 Volt DC at
MP 47 (X4300_Pin
B19) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Disconnect the
Camera Flex Module
Problem with
Upper Keypad LED
Replace
Keypad FPC
or X2401
No
Yes 0 Volt DC at
MP 22 (X2401_Pin
A10) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Disconnect the
Keypad FPC
Problem with
Middle Keypad LED
Replace
Keypad FPC
or X2401
No
Yes 0 Volt DC at
MP 18 (X2401_Pin
B8) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Disconnect the
Keypad FPC
Problem with
Lower Keypad LED
Replace
Keypad FPC
or X2401
No
Yes 0 Volt DC at
MP 20 (X2401_Pin
A3) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Disconnect the
Keypad FPC
Flash the Phone with
EMMA SUCR SW
1217-3942 rev. 1 12 (119)
TROUBLESHOOTING

TROUBLESHOOTING Main and VGA Camera Problems - Vibrator Problems SEMC Troubleshooting Manual
W890
Main and VGA Camera Problems Vibrator Problems
START
Step 1:
Flash the phone with EMMA SUCR SW and
retest the phone
If successful Claim SW Flash if not go to step 2.
Step 2:
Replace Camera Flex Module and retest the phone.
If successful Claim Camera Flex Module
if not then continue with
Main and VGA Camera Problems TRS guide.
Load ITP SW into the
phone. Use TRS Fixture
Connect: Display and
Camera Flex Module
Connect:
VBAT and DCIO/SEPI
Use Fault Trace SW
Fault trace SW
MMI
Misc
Activate:
Main Camera Test
1.8 Volt DC
at 40 (MP R2281
CAM_LDO_EN) and
MP 43 (C4330
CI_RESn)
SL 5 Replace
D2000
SL 4 Escalate
No
1.9 Volt DC
at MP 38 (C2287
VCAMCORE_18)
Yes
Is
C2281
Short circuit No
SL 5 Replace
C2281
SL 4 Escalate
Yes
Are any of
C2286 or C2287
Short circuit
No Replace
N2204
No
SL 5 Replace
C2286 or C2287
SL 4 Escalate
Yes
2.8V DC at
MP 45 (C2283
VCAM_28) and 1.8V DC
at MP 39 (C2284
VCAM_18)
Yes
Are any of
C2282, C2283 or C2284
Short circuit
Replace
N2203
No
SL 5 Replace
C2282,C2283 or C2284
SL 4 Escalate
Yes
No
13 MHz at
MP 48 (C4329)
And 26 MHz at
MP 46 (C4313)
Yes
SL 5 Replace
D2000
SL 4 Escalate
No
Yes
SL 5 Replace
N2000
SL 4 Escalate
2.8V-2.9V
Pk-Pk Pulses at
MP 75 (C4206
VIBR_OUT)
NoYes
Replace
X2401
START
Step 1:
Replace Keyboard Flex Module
and retest the phone
If successful claim Keyboard Flex Module
if not go to step 2.
Step 2:
Load ITP SW into the phone
Use TRS Fixture.
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI
Misc
Activate:
Vibrator Test
Continue with the Vibrator Problems TRS guide
Deactivate
Main Camera Test
and Activate
VGA Camera Test
Fault trace SW
MMI
Misc
Activate:
VGA Camera Test
4.8 MHz at
MP 46 (C4313)
Replace
X4300
SL 5 Replace
D2000
SL 4 Escalate
No
Yes
1217-3942 rev. 1 13 (119)
TROUBLESHOOTING

SEMC Troubleshooting Manual
TROUBLESHOOTING Charging Problems - USB/VBUS Charging Problems W890
USB/VBUS Charging Problems
Yes
No
Use TRS Fixture and
Fault Trace SW
Connect:
VBATT and
DCIO/SEPI
Start
Battery Calibration
No
Battery Calibration
Passed
Current Calibration
Passed
No
No
Flash the phone with
EMMA SUCR SW
and go to
Charging Test
No
Is the
3.2V and 4.1V DC
at MP 85 (TP2200)
during Battery
Calibration
SL 5 Replace
R2200
SL 4 Escalate
5 Volt DC at
MP 61 (C2424)
Replace
System Connector
X2400
Is any of
C2423 and C2424
Short circuit
Yes
Start the
Current Calibration
(C.C.)
SL 5 Replace
R2201
SL 4 Escalate
Replace
V2202
Is
R2201
0.3 Ohm
No
MP 106
(C2241 DCIO_INT)
Higher than
3,8 Volt DC
MP 111 (R2201
CHSENSEP) Higher
than 3,8 Volt DC
(During C.C.)
MP 114
(V2202_Pin 2
CHREG) Lower than
MP 106 (C2241)
(During C.C.)
Yes No
Yes
No
The Phone
Consuming DCIO
Current
(During Current
Calibration)
Yes
Replace
X2200
Yes
Is
MP 72 (TP2202)
Short circuit to the
PBA Shield Can
Fence
Yes
Yes
Is
Connection
between PBA
Shield Can Fence and
Power Supply VBATT
GND Ok
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
Yes
SL 5 Replace
N2000
SL 4 Escalate
Yes
No
No No
Yes
Use TRS Fixture,
Fault Trace SW
Connect:
VBATT and
DCIO/SEPI
SL 5 Replace
N2000
SL 4 Escalate
START
Step 1:
Perform System Connector Protection Test
If successful go to step 2.
Step 2:
Load ITP SW into the phone
Connect: Dummy Battery
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW:
Logic, Phone Power
Perform
Battery and Current Calibration
NOTE !
It is very important to follow instrument settings
instructions during
Battery and Current Calibration Test.
Is
L2405 and L2406
Ok
Replace
L2405 or L2406 No
Yes
SL 5 Replace
C2423 or C2424
SL 4 Escalate
Disconnect
VBATT and DCIO/SEPI
Charging Problems
5 Volt DC at
MP 109 (R2240)
No
Replace
System Connector
X2400
Yes
Connect
DSU-60/USB Cable
from PC to
the phone
Is
C2422
Short circuit Yes SL 5 Replace
C2422
SL 4 Escalate
No
N2402
Getting hot Yes Replace N2402
No
START
Step 1:
Perform System Connector Protection Test
If successful go to step 2.
Step 2:
Use Phone with Normal SW
Use TRS Fixture
Connect: VBATT
SL 5 Replace
N2000
SL 4 Escalate
1217-3942 rev. 1 14 (119)
TROUBLESHOOTING

TROUBLESHOOTING SIM Problems - Memory Stick Problems SEMC Troubleshooting Manual
W890
SIM Problems
Memory Stick Problems
Yes
No
Flash the Phone with
EMMA SUCR SW
Fault Trace SW
Logic
Sim Com Test SIM Card control
Passed Activate:
SIM Com Test
START
Step 1:
Replace SIM/M2 Flex Module and
retest the phone. If successful
claim SIM/M2 Flex Module,
If not go to step 2.
Step 2:
Load ITP SW into the phone
Connect:
Dummy Battery to VBATT
Insert Test SIM
Connect:
DCIO/SEPI
Use Fault Trace SW
START
Step 1:
Replace SIM/M2 Flex Module
and retest the phone. If
successful claim SIM/M2 Flex
Module, If not go to step 2.
Step 2:
Continue with the
Memory Stick Problems
TRS guide
Use TRS Fixture
Connect: VBAT and DCIO/SEPI
Use: Fault Trace SW
Logic
SIM Card control
1.8 Volt DC at
MP 70 (C2411)
Yes
Activate:
SIMVCC
SIMVCC on
Activate:
SIMRST
Yes
SIMVCC on
SIMRST on
Activate:
SIMCLK
No
Yes
No
Are any of
C2406 and C2411
Short circuit
No Yes
No
1.8 Volt DC at
MP 71 (C2410)
Is
C2410
Short circuit
1 MHz and
1.6V-1.9V Pk-Pk
At MP R2499
Is
R2499
0 Ohm
No No
Yes
SIMVCC on
SIMRST on
SIMCLK on
Activate:
SIM DATA
Yes
SL 5 Replace N2000
If still faulty then
Replace D2000
SL 4 Escalate
SL 5 Replace N2000
If still faulty then
Replace D2000
SL 4 Escalate
SL 5 Replace
C2406 or C2411
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
R2499
SL 4 Escalate
SL 5 Replace
C2410
SL 4 Escalate
1.8 Volt DC at
MP 108 (R2419) No
Yes
Replace
X2402
Disconnect:
VBATT and DCIO/SEPI
Connect:
SIM/M2 Flex Module
to the PBA
Use: DMM
8 Kohm
Between MP 132
(X102 SIMVCC)
(Black probe) and MP 133
(X102 SIMDAT)
(Red probe)
No
Yes
SL 5 Replace N2000
If still faulty then
Replace D2000
SL 4 Escalate
SL 5 Replace
R2419
SL 4 Escalate
Load ITP SW into the phone
Use TRS Fixture and
connect SIM/M2 Flex Module
Connect :
VBATT and DCIO/SEPI
Insert Memory card
Use Fault Trace SW
Memory Stick Test
Passed
Yes
Is
X2402
damaged
No
Replace
X2402
Yes
Fault trace SW
Logic
SIM Card Control
Activate:
Memory Stick Test
No
No
Is
Result GPIO
LOW
Yes
Yes
No
Flash the phone with
EMMA SUCR SW
SL 5 Replace
N2000
SL 4 Escalate
Problem solved SL 5 Replace
D2000
SL 4 Escalate
Claim Component
N2000
Fault trace SW
Logic
GPIO Manager
GPIO-Read
GPIO 12-R
TROUBLESHOOTING
1217-3942 rev. 1 15 (119)

TROUBLESHOOTING Audio Internal Problems - Audio External Problems SEMC Troubleshooting Manual
W890
Audio External Problems
START
If Loudspeaker or Earphone problem
follow step 1, 2 and 3.
If Mic problem follow step 1 and 3.
Step 1:
Perform
System Connector Protection Test.
If successful go to step 2.
Step 2:
Replace Camera Flex Module and
retest the phone. If successful claim
Camera Flex Module
If not then go to step 3.
Step 3:
Load ITP SW into the phone.
Use TRS Fixture.
Connect VBATT and DCIO/SEPI
and continue with the
Audio internal problems TRS guide
Fault Trace SW
Audio and FM Radio
Audio Loop test
Audio Input: Mic1
Loop Mode: Analog
Audio Output: Earphone
Apply Audio Loop
Blow into the
PBA Mic
Can you hear
anything from the
Earphone
Fault Trace SW
Audio and FM Radio
Audio Loop test
Audio Input: Mic1
Loop Mode: Analog
Audio Output: Loudspeaker
Apply Audio Loop
Blow in the
PBA Mic
Yes
2.2 Volt DC
At
MP 99 (L3102)
No
Is
L3102, C3123 or
R3119
Ok
No
SL 5 Replace
Faulty Component
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate Yes
No
More than
100mVolt AC Pk-Pk
At MP 98 (L3100) when
blowing into the
PBA Mic
Yes
Is
L3100,L3101
C3110,R3197,C3121,
C3131,R3199,R3198
Ok
No
SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
Replace
B3100
No
More than
100mVolt AC Pk-Pk
At MP 50 (C3139) and
MP 49 (C3140) when
blowing into the
PBA Mic
Yes
Are any of
C3139 and C3140
short circuit No
SL 5 Replace
Faulty Component
SL 4 Escalate Yes
SL 5 Replace
N2000
SL 4 Escalate No
Replace
X4300
Yes
Can you hear
anything from the
Loudspeaker
1.9 Volt DC
at MP 53 (C3107)
and MP 54 (C3108) No
Replace
X4300 Yes
More than
100mVolt AC Pk-Pk
at MP 87 (C3137) and
MP 88 (C3141) when
blowing into the
PBA Mic
SL 5 Replace
N2000
SL 4 Escalate No
1.8 Volt DC
at MP 91 (R3101)
Yes
SL 5 Replace
D2000
SL 4 Escalate No
Replace
N3100 Yes
No
Fault Trace SW
Logic
GPIO Manager
Access
Set GPIO_03 to Low
Application
Set GPIO_01 to Low
Access
GPIO_02 Read
Yes
0 Volt DC
at MP 94 (R2435)
SL 5 Replace
D2000
SL 4 Escalate
No
0 Volt DC
at MP 93
(V2405_Pin 5)
Yes
Replace
N2400
No
2.6 Volt DC
at MP 92 (V2405_Pin 3)
and Result GPIO_02
= LOW
Yes
Replace
V2405
No
2.0 V - 2.6 V DC
at MP 62
(V2420_Cathode) Yes
No
Go to
External Audio
Problems Yes
SL 5 Replace
R2440
SL 4 Escalate
Audio Internal Problems
START
Step 1:
Perform System Connector
Protection Test.
If successful go to step 2.
Step 2:
Load ITP SW into the phone.
Use TRS Fixture
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW
Fault trace SW
Audio and FM Radio
Audio Loop Test
Audio Input: AUX1
Loop Mode: Analog
Audio Output:
AUX Earphone
Apply Audio Loop
Replace
L2403 or L2404
Can you
hear anything at
AUX earphone when
blowing into the
AUX Mic
No
More than
100mV AC Pk-Pk at
MP 122 (C3124 MICP_int)
and MP 121 (C3125
MICN_int) when
blowing into
the AUX Mic
Yes
More than
100mV AC Pk-Pk
at MP 64 (L2403 SPL) and
MP 63 (L2404 SPR) when
blowing into the
AUX Mic
L2403 and L2404
Max 2 Ohm
No
Yes
Yes
No
Disconnect
DCIO/SEPI cabel
and Insert PHF set
Blow into the
AUX Mic
No
Yes
Audio Internal
Tested
Yes
No
More
Than 100mV AC Pk-Pk
at MP 118 (C3113) and MP
120 (C3120) when blowing
into the
AUX Mic
Replace
N3101
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Replace
N3101
2.2 Volt DC at
MP 123 (C3119) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Replace
System Connector
X2400
Flash the phone
with
EMMA SUCR SW
Go to
Audio Internal
Problems
1217-3942 rev. 1 16 (119)
TROUBLESHOOTING

TROUBLESHOOTING FM Radio Problems - Bluetooth Problems SEMC Troubleshooting Manual
W890
FM Radio Problems Bluetooth Problems
START
Perform System Connector
Protection Test
If successful then continue
with the
FM Radio Problems
TRS guide.
FM Radio
is not
working with
Loudspeaker or
PHF set
No
Replace
N3101
PHF
working properly
during
Voice call
No Yes
Yes
SL 5 Replace
N2000
SL 4 Escalate
Load ITP SW
into the phone.
Use TRS Fixture
Connect:
Camera Flex Module
VBATT and DCIO/SEPI
Use Fault Trace SW
Fault trace SW
Audio and FM Radio
FM Radio
Audio Output:
Loudspeaker
Frequency:
According to
Signal Generator
Instrument Settings
Set FM Radio
Yes
No
3.8 Volt DC
at MP 66 (C3304)
and 1.8V at MP 52
(C3305)
More than
40mVolt AC Pk-PK
1 KHz signal at
MP 119 (C3145) and
MP 117 (C3146)
Yes
Signal Ok Claim
System Connector
X2400
SL 5 Replace
N2000
SL 4 Escalate
Yes
SL 4 Replace
N1400
SL 5 Replace
C3145, C3146
L3301 or C3301
No
No
Replace
System Connector
X2400
Can you
hear 1KHz Tone
from the
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 FM Channel
Example:
103 MHz in Sweden
Amplitude: 25.0 uVrms
FM Dev: +/-22.5 kHz
FM Rate: 1kHz
SL 5 Replace
L2400
SL 4 Escalate
26 MHz
at
MP 44 (R2101)
Replace
D2105
No
Yes
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
BW: Auto
Use RF Probe with
10:1 Divider
Use Peak Search
Any Signal
at MP 113 (X1400_Pin
1 BT_ANT)
Fault Trace SW
TX and RX
Bluetooth
Channel 0
Set MaxPwr MOD 1
Use Spectrum Analyzer
with the previous
instrument settings
Is
MOD 1 Freq.
minimum 230 KHz
higher then
MOD 0 Freq.
No
Replace
N1400
Yes
-15dBm at
MP 113 (X1400_Pin 1
BT_ANT)
(±5dBm)
Yes
Change the
Bluetooth channels
In Fault Trace SW
and test the output.
Use
Spectrum Analyzer
Span 10MHz
BW: Auto
Use RF Probe with
10:1 Divider
Use Peak Search
when changing the
channel.
Note:
1MHz channel
spacing
Yes
All channel
passed
Yes
Replace
N1400
No
-10dBm at
MP 65 (Z1400_Pin 1)
(±5dBm)
No
Replace
Main Antenna (PIFA)
or X1400
Yes
-10dBm at
MP 68
(Z1400_Pin 5) and
MP 67 (Z1400_Pin 7)
(±5dBm)
No Replace
N1400
No SL 5 Replace
Z1400
SL 4 Escalate
Yes
26 MHz Signal
At MP 44 (R2101
BT_CLK)
No
No
2.7 Volt DC at
MP 81 (C2205
VBT27)
Yes
1.8 Volt DC at
MP 76 (C2214 VDDE18)
and 2.7 Volt DC at MP
C2215
VDIG
Yes No
Replace
N1400
Yes
No
SL 5 Replace
N2000
SL4 Escalate
SL 5 Replace
N2000
SL4 Escalate
Load ITP SW
Into the phone
Use TRS Fixture
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW
Replace
Main Antenna (PIFA)
or X1400
Replace
D2105
More
than 60 Kohm
between MP 44
(R2101) (Red Probe)
and Shield Can Fence
(Black Probe)
Yes
Replace
N1400
No
1217-3942 rev. 1 17 (119)
TROUBLESHOOTING

TROUBLESHOOTING GSM Network Problems SEMC Troubleshooting Manual
W890
TROUBLESHOOTING
START
Max
3 Ohm between
MP 95 (X1203_Pin 1)
MP 96 (X1203_Pin 2)
Replace
X1100 or X1203
No
Go to
GSM Network
Problems RX part
Antenna Swich
Test Passed
SL 5 Replace
D2000
SL 4 Escalate
No
Fault Trace SW
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: Select Channel: Power Level:
GSM 850 128 5
GSM 900 38 5
DCS 1800 512 0
PCS 1900 512 0
Yes
Yes
Phone
Reported power
at 850 and 900=33dBm
1800 and 1900=30dBm
(±3dBm)
Is
Phone Reported
Power ±5 dBm
Go to
SERP Calibration
Yes
Perform
Antenna Switch Test
No
No
Fault Trace SW
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band : GSM 850
Channel : 128
Power Level: 5
Yes
Use Spectrum Analyzer
Instrument settings:
TX Freq: 824.2 MHz
Span: 300 kHZ
Amplitude: -5 dBm
BW: Auto
Use RF Probe with
10:1 Divider
Signal at
MP 2 (R1234)
-17 dBm
(±5dBm)
Replace
N1200 No
Signal at
MP 4 (L1236)
-12 dBm
(±5dBm)
Yes
Replace
N1230 No
Fault Trace SW
TX and RX GSM
GSM Mode Settings:
TX Static
GSM Radio Settings:
Select Band : DCS 1800
Channel : 512
Yes
GSM Network Problems TX part
SL 5 Replace
N2000
SL 4 Escalate
2.8 Volt DC
at MP 80 (C2230
VccA)
No
Yes
Perform
TX Measurements at
following GSM Bands:
GSM 850, GSM 900
DCS 1800 and PCS 1900
Load ITP SW into the Phone
Use TRS Fixture
Connect:
VBATT: 3.8 Volt, Limiter 3A,
DCIO/SEPI and SMK RF Probe
Use Fault Trace SW
Connect Mobile Phone Tester
Instrument Settings:
System Mode:
TX/RX Tester Mode (GSM)
GSM BAND:
GSM 850, Channel 128
GSM 900, Channel 38
DCS 1800, Channel 512
PCS 1900, Channel 512
Measurment Mode:
Repeat, Burst
Correction: 1.6 dB
No
Yes
1.4V-1.6V
Pk-Pk Pulses at
MP 3 (R1233
VAPC)
Replace
N1200
Fault Trace SW
Switch GSM Mode
Settings to:
TX Static
GSM Network Problems RX part
START
NOTE !
Before this the
GSM Network Problems TX part
TRS guide must be finished!
RSSI Test
Passed
No
Yes
Go to
WCDMA Network
Problems TX part
Instrument Settings:
System Mode:
TX/RX Tester Mode
WCDMA
Downlink Channel:
BAND I: 10562
Measurement Mode:
Repeat
RF Power ON: -60 dBm
Correction: -1.6 dBm
Connect Mobile Phone Tester Fault Trace SW
Instrument Settings: TX and RX GSM
System Mode: GSM Mode Settings:
TX/RX Tester Mode (GSM) RX Switched
GSM BAND: Select Channel: GSM Radio Settings:
GSM 850 128 Select Band: Select Channel:
GSM 900 38 GSM 850 128
DCS 1800 512 GSM 900 38
PCS 1900 512 DCS 1800 512
RF Power ON: -60 dBm PCS 1900 512
Correction: -1.6 dBm GSM RSSI Measurements:
Measurement Mode: Start RSSI Test
Repeat, CW
Fault Trace SW
TX and RX WCDMA
Replace
Z1230
Replace
N1200 Yes
No
Is Radio Settings:
Select Band : Band I
Phone Reported Fast select channels:
Power -60 dBm
(±5dBm) Ch LOW
Modes: Read RSSI
RX On:
Read Measurement
Perform
GSM RSSI Test at
following GSM Bands:
GSM 850
GSM 900
DCS 1800
PCS 1900
Use Spectrum Analyzer
Instrument settings:
TX Freq: 1710.2 MHz
Span: 300 kHZ
Amplitude: -5 dBm
BW: Auto
Use RF Probe with
10:1 Divider
Signal at
MP 1 (L1235)
-15 dBm
(±5dBm)
Replace
N1200
No
Signal at
MP 5 (L1234)
-12 dBm
(±5dBm)
Yes
Replace
N1230
No
Is
X1000
Damaged Yes
Replace
X1000
Yes
Replace
Z1230 No
1217-3942 rev. 1 18 (119)

TROUBLESHOOTING WCDMA Network Problems SEMC Troubleshooting Manual
W890
TROUBLESHOOTING
WCDMA Network Problems TX part
Instrument Settings:
System Mode:
TX/RX Tester Mode
WCDMA
Downlink Channel:
BAND I: 10562
Measurement Mode:
Repeat
Correction: 1.6 dB
WCDMA Network Problems RX part
START
NOTE !
Before this the
WCDMA Network Problems TX
part TRS guide must be finished!
Fault Trace SW
TX and RX WCDMA
Radio Settings:
Select Band : Band I
Fast select channels:
Ch LOW
Modes: Read RSSI
RX On:
Read Measurement
No
Mobile Phone Tester
Instrument Settings:
System Mode:
TX/RX Tester Mode WCDMA
Downlink Channel:
BAND I: 10562
Measurement Mode: Repeat
RF Power ON: -60 dBm
Correction: -1.6 dBm
Is
Phone Reported
Power -60 dBm
(±5dBm)
Perform
WCDMA RSSI
Test
Yes
Go to
GO-NOGO
Test
Yes
Mobile Phone Tester
Instrument Settings:
Change the RF Power to:
-10 dBm
Signal at
MP 16 (L1340)
-45 dBm
(±5dBm)
Use Spectrum Analyzer
Instrument settings:
TX Freq: 2112.4 MHz
Span: 10 MHZ
Amplitude: -5 dBm
BW: Auto
Use RF Probe with
10:1 Divider
SL 5 Replace
Z1330
SL 4 Escalate
No
Signal at
MP 15 (N1300_Pin 29)
-45 dBm
(±5dBm)
Yes
Replace
N1300
No
Signal on
both side of
MP 14 (L1341)
-50 dBm
(±5dBm)
Yes
SL 5 Replace
Z1340
SL 4 Escalate
No
More than
1 Volt DC
at MP 58, 57, 56, 55
(N1300_Pins
17, 18 , 19
& 20)
Yes
Replace
N1300
No
SL 5 Replace
D2000
SL 4 Escalate
Fault Trace SW
TX and RX WCDMA
Radio Settings:
Select Band: BAND I
Fast Select Channels:
Ch LOW
Modes: Max Pwr 23dBm
Load ITP SW
into the phone.
Use TRS Fixture
Connect:
VBATT: 3.8V, Limiter 3A
DCIO/SEPI: 5V, Limiter 2A
Use Fault Trace SW
START
NOTE !
Before this the GSM
TX and RX TRS Guides
must be finished!
Max Pwr 23dBm
Ok
(±3dBm)
Perform
WCDMA
Max Pwr 23dBm
Test
No
1.8 Volt DC
at MP 36 (R2220) and
MP 35 (C1381)
SL 5 Replace
D2000
SL 4 Escalate
No
26 MHz at
MP 59 (C1316
WBCLK) Yes
Replace
N1200 No
1.2V-1.3V DC at
MP 13 (N1300_Pin 38)
and MP 12
(N1300_Pin 39)
Yes
Replace
N1300 No
3.1V-3.3V DC at
MP 32 (L2207
VCC_WPA)
Yes
SL 4 Replace
N2205
SL 5 Replace
L2207
No Yes
Go to
WCDMA Network
Problems RX part
Yes
Use Spectrum Analyzer
Instrument settings:
TX Freq: 1922.4 MHz
Span: 10 MHz
Amplitude: -5 dBm
BW: Auto
Use RF Probe with
10:1 Divider
Signal at
MP 60 (L1360)
-35 dBm
(±5dBm)
Replace
N1300
No
Signal at
MP 34 (L1381)
-32 dBm
(±5dBm)
Yes
SL 5 Replace
Z1360
SL 4 Escalate
No
Signal at
MP 9 (C1388)
-7 dBm
(±5dBm)
Yes
Replace
N1380 No
Signal at
MP 11 (K1380_Pin 5)
-7 dBm
(±5dBm)
Yes
SL 5 Replace
K1381
SL 4 Escalate No
Signal at
MP 10 (K1380_Pin 2)
-10 dBm
(±5dBm)
Yes SL 5 Replace
K1380
SL 4 Escalate
No
SL 5 Replace
Z1330
SL 4 Escalate
Yes
1217-3942 rev. 1 19 (119)

SEMC Troubleshooting Manual
TROUBLESHOOTING System Connector Protection Test - Current Consumption Test W890
System Connector Protection Test
Perform Diode and Ohm measurements with a Multimeter
Connect the black probe to ground (Pin 9 at system connector)
Pin 1 Pin 9(GND) Pin 12
Pin at
X2400
Diode
Measurements
/ Volt
Ohm
Measurements
/ Ohm SL 4 Action SL 5 Action
1 0L 236K N2402 if lower than 236KΩC2422 if lower
than 236KΩ
2 0.0 0.0 X2400 If more than 0 Ohm PBA If more than
0 Ohm
3 0L 8K
X2400 if higher than 8KΩ
N3101 if lower or higher than 8KΩ.
L2401/L2407 if higher than 8KΩ. No Action
4 1.0 1K
X2400 if higher than 1KΩ
N3101 if lower or higher than 1KΩ.
L2402/L2408 if higher than 1KΩ. No Action
5 0L 2.2K
X2400 if higher than 2.2KΩ
N3101 if lower than 2.2KΩ.
L2403 if higher than 2.2KΩC2416 if lower
than 2.2KΩ
6 0L 2.2K
X2400 if higher than 2.2KΩ
N3101 if lower than 2.2KΩ.
L2404 if higher than 2.2KΩC2415 if lower
than 2.2KΩ
7 0L 0L Not connected Not connected
8 0L 1.5K X2400 if higher than 1.5KΩ V2420 if lower than 1.5KΩ
R2440 and R2436
if higher than
1.5KΩ
9 0 0 No Action (GND) No Action (GND)
10 0.7 Minimum 30K
N2424 If lower than 30KΩ
D2400 If lower than 30KΩ
X2400 if higher than 30KΩZ2400 if higher
than 30KΩ
11 0.7 Minimum 30K
N2424 If lower than 30KΩ
D2400 If lower than 30KΩ
X2400 if higher than 30KΩZ2400 if higher
than 30KΩ
12 0L 80K V2202 if lower than 80KΩ
C2423,C2424 or
N2000 if lower
than 80KΩ
Current Consumption Test
Step 1:
Insert Local SIM Card and use the phone with the Normal SW (SSW) and dummy battery connected
to Power Supply Channel 1 VBATT according to Picture 1.
Instrument settings: Voltage: 3.8 Volt, Limiter 3A.
Measure the current when Phone is off. Check the current consumption at Power Supply Channel 1
VBATT.
Picture 1
Current consumption in off mode should be less than 1mA.
If more than 1mA go to Dead Phone problems part 1 TRS guide.
Step 2:
Start the phone:
Measure the deep sleep current max 6mA typical between 0-3mA.
Make sure that the operator is running with deep sleep. (This operation can be switched off by
operator if the network is busy).
If phone using more than 6mA, then go to EMMA III and perform:
Software Update Contents Refresh (SUCR).
Step 3 with Mobile Phone Tester Instrument
Insert Test SIM Card and use the phone with the Normal SW (SSW) and dummy battery connected
to Power Supply Channel 1 VBATT according to Picture 1.
Instrument settings: Voltage: 3.8 Volt, Limiter 3A.
Use Mobile Phone Tester Instrument in signalling mode direct connected to the phone with RF
Connector or use Shield Box if not possible. Phone Display must be on during these tests to get
correct current measurements.
Perform Radio TX measurements at GSM and WCDMA Band by making the phone call from the UE
into the Mobile Phone Test Instrument (NW) and compare current consumption result with the test
limits below.
GSM 850, 900, 1800, 1900
- Transmitter current 850 MHz at Ch: 128 power level 5. Typical 350mA
- Transmitter current 900 MHz at Ch: 1 power level 5. Typical 350mA
- Transmitter current 1800 MHz at Ch: 512 power level 0. Typical 300mA
- Transmitter current 1900 MHz at Ch: 512 power level 0. Typical 300mA
-Tolerance: ±20%
1217-3942 rev. 1 20 (119)
TROUBLESHOOTING