Sony Ericsson C702 Programming manual

C702
1221-7857 rev. 1
Troubleshooting Manual
APPENDIXCOMPONENT OVERVIEW FUNCTIONAL OVERVIEW
ABOUT
ABOUT TROUBLESHOOTING MEASUREMENT POINTS
C702
SEMC Troubleshooting Manual
1(115)

C702
1221-7857 rev. 1
ABOUT
ABOUT
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.
Rev. Date Changes / Comments
110/31/2008Inititalrevision.
Revision History
Contents
ABOUT 2
About 2
Contents 2
TROUBLESHOOTING 3
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 & VGA Camera 13
Camera Door Sensor & Flash LED Problems 13
Vibrator Problems 14
Charging Problems 14
USB/VBUS Charging Problems 15
SIM Problems 16
Memory Stick Problems 16
Audio Internal Problems 17
Audio External Problems 17
FM Radio Problems 18
Bluetooth Problems 18
GSM Network Problems 19
WCDMA Network Problems 20
System Connector Protection Test 21
Current Consumption Test 21
Current Consumption Test 22
Battery and Current Calibration Test 23
Backup Capacitor Test 23
Charging Test 24
ASIC Revision Test 24
Reference Measurement Points 25
Measurement Points Pictures 26
MEASUREMENT POINTS 39
Front Side 39
Back Side 40
N1200 Thor Module 41
N1210 Squid Module 42
Top Schematic 43
Imaging Top 44
Imaging Display 45
Imaging Camera 46
Imaging LMU 47
Imaging Sensor 48
Access Top 49
Access GSM & UMTS 50
Access Bluetooth 51
Access AGPS 52
Application & System Performance 53
System Top 54
Clocks & Resets 55
System Memories 56
System PoP IF 57
Power Top 58
Regulators & Charging 59
Power Camera 60
Power ASICs 61
Power Memories 62
Connectivity Top 63
Connectivity ADC & I2C 64
Connectivity Cards 65
Connectivity 66
Connectivity Keypad 67
Audio Top 68
Audio Analog 69
Audio Digital 70
Audio FM Radio 71
Test 72
Thor RF Module - TOP 73
Thor RF Module - GSM/EDGE Tx + FEM 74
Thor RF Module - GSM/EDGE Rx + Synth 75
Squid RF Module - Radio Top 76
Squid RF Module - Radio Cont UMTS 77
Squid RF Module - Radio Duplex 78
Squid RF Module - Radio Top UMTS 79
Squid RF Module - Radio Receiver UMTS 80
Squid RF Module - Radio Synthesizer UMTS 81
Squid RF Module - Radio Power Amplifier 82
COMPONENT OVERVIEW 83
Front Side 83
Back Side 84
FUNCTIONAL OVERVIEW 85
Technical Description 85
Block Diagrams 95
APPENDIX 97
Replaceable Parts 97
Components - B2101, B3100, D2105 98
Components - D2404, L2401-5, L2408 98
Components - N1200, N1210 99
Components - N1400, N1430 100
Components - N2205, N2402, N3100 101
Components - N1301, V2202, V2405 102
Components - V2420-21, S2502-4 102
Components - V2425, V3105-6, X1200 103
Components - X1201-3, X1301-2 103
Components - X1430-31 103
Components - X2200, X2300 104
Components - X2402, X2403 104
Components - X2490, X4201, X4202 105
Components - X4300 105
Components - X4301 106
Flash FPC Schematics 106
Keyboard FPC Schematics 106
Troubleshooting Software Documentation 107
Troubleshooting Fixture Setup Instructions 114
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Equipment List
C702 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 –
C702 – Equipment List.
TRS Fixture Kit
Location: CSPN-Repair Instructions-Electrical-C702-Equipment List
Dummy Battery
Location: CSPN-Repair Instructions-Electrical-C702-Equipment List
Part number: NTZ 112 533
Note! The resistance between GND and BDATA should be approximately 120K Ohm.
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: -
RF Adaptor
Adaptor 33 N-BNC-50-1
Adaptor to Signal Generator RF Output
See Picture 2
Location: -
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Equipment List
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-C702-Trouble Shooting Application
Project File: C702 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
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
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Equipment List
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
This is wrong setup see picture 11.
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.
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Equipment List
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
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C702
1221-7857 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Equipment ListEquipment ListEquipment List
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
Rohde & Schwarz RF Shield Package (Box)
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Picture 23
SMK RF Probe
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: SXA 109 6356
Picture 24
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING On/Off Problems
TROUBLESHOOTING
- Flash Problems
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 ”C”
Connect USB from PC
Run SEMC BOOT
if necessary
Run SUCR SW
Is Phone Flash
OK
CDA Software
Flash
Successful
Flash
the phone with
correct CDA
software
Yes
On/Off Problems
START
Step 1:
Perform
System Connector Protection Test
If the test is pass go to step 2
Step 2:
Use Phone with Normal SW
Use TRS Fixture
Connect: Display, Keypad
and VBATT
Dowload ITP SW into the Phone
by using EMMA SW
No
SL 5 Replace
Z4203
SL 4 Escalate
5 Volt DC at
MP 118 (C2414)
Yes
No
Yes
Yes
Max
2 Ohm between
MP 113 (X2300_Pin 2)
and MP 115
(Z4203_Pin 4)
No
SL 5 Replace
R2484
SL 4 Escalate
Yes
No
Power Up the Phone
Connect
USB Cable From PC
Go to
USB/VBUS
Charging Problems
No
3.3V - 3.5V
Pk-Pk Pulses at
MP 116 (C2476)
Yes
1.8V - 2.5V
Pk-Pk Pulses at
MP 98 (C2474)
Disconnect:
VBATT and USB Cable
from the TRS Fixture
Flash process
Start-up when using
EMMA SW
No
Yes
Is
ITP SW Flash
Successful Yes SL 5 Replace
D2020
SL 4 Escalate
No
1.8 Volt DC
at
MP 120 (R2427)
SL 5 Replace
D2000
SL 4 Escalate
No
Replace
D2404
Yes
Max
0.5 Ohm between
MP 113 (X2300_Pin 2)
and MP 114
(Z4203_Pin 1)
No
Max
2 Ohm between
MP 112 (X2300_Pin 3)
and MP 110
(Z4203_Pin 3)
Yes
Max
0.5 Ohm between
MP 112 (X2300_Pin 3)
and MP 111
(Z4203_Pin 2)
No Replace
System Connector
X2300
Replace
System Connector
X2300
SL 5 Replace
Z4203
SL 4 Escalate
Yes
No
Replace
D2404
Yes
Problem
solved Claim Component D2404
Yes
SL 5 Replace
D2000
SL 4 Escalate
No
Is any of
V2410 and V2411
short circuit
No
SL 5 Replace
V2410 or V2411
SL 4 Escalate
Yes
Is any of
C2413 and C2433
short circuit No
SL 5 Replace
C2413 or C2433
SL 4 Escalate
Yes
The phone
Indicates charging
on the display
Flash Problems
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING Dead Phone Problems
TROUBLESHOOTING
START
Step 1:
Try to recover the phone by
using EMMA SW
Press ”C”
Connect USB from PC
Run SEMC BOOT if necessary
Run SUCR SW
If successful claim SW Flash
If not continue with the step 2.
Step 2:
Use TRS Fixture
Connect Only: VBATT
Is the
current consumption
more than 1mA
Try to trace faulty
component by using
freezing spray
Are any of
N1200 (Thor)
or N1210 (Squid)
getting hot
Replace
N1200 or N1210 Yes
No
Is the
current consumption
still more than
1mA
No
Yes
No
Yes
Connect
DCIO/SEPI
to the Phone
0 Volt DC
between Power
Supply VBATT GND
and Shield Can
Fence
Yes
SL 5 Replace
R2200
SL 4 Escalate
No
SL 5 Remove
N2000
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
Try to trace faulty
component by using
freezing spray
2.2 Volt DC
at MP 13 (ST2212
VDD_LP)
SL 5 Replace
N2000
SL 4 Escalate
No
32 kHz
at MP 41 (C2103) and
MP 42 (C2106)
Yes
Replace
B2101
No
32 kHz
RTCCLK at
MP 39 (R2122)
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
26 MHz
MCLK at
MP 6 (R2120)
Yes
26 MHz
SYSCLK1 at
MP 97 (SP2102)
Yes
1.8V DC at
MP 20 (ST2207 VDDE18)
and 2.8V DC at
MP 43 (C2230
VccA)
No
No
Replace
N1200 Yes
Check the following voltages:
2.6V MP 24 (ST2205 VAUDIO26)
2.5V MP 19 (ST2206 VANA25)
2.7V MP 25 (T2208 VBT27)
2.7V MP 26 (ST2209 VDIG)
1.2V MP 45 (ST2213 VCORE12)
1.8V MP 7 (ST2214 VCORE18)
All voltages
Ok
Current
Consumption more
than 50mA
Step 1:
Disconnect
VBATT and DCIO/SEPI
Step 2:
Connect: Display and Keypad
to the PBA
Step 3:
Connect Only: VBATT
Step 4:
Activate EMMA SW
Press the ”C” key and
connect USB Cable from PC
Flash the Phone with ITP SW
Yes
ITP SW Flash
Successful
SL 5 Replace
D2020
SL4 Escalate
Yes
Go to
Flash Problems
No
No
SL 5 Replace
N2000
SL 4 Escalate
No
SL 5 Replace
D2000
SL 4 Escalate
No
Yes
Go to
Dead Phone
Problems part 2 Yes
Dead Phone Problems part 1
No
START
Dead Phone Problems part 2
NOTE !
Before following this guide
the Dead Phone Problems
part 1 must be finished.
VAUDIO26
Voltage
Ok No
VANA25
Voltage
Ok
Yes
N2202 or D2000
getting hot
No
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
VBT27
Voltage
Ok
Yes
N1400
getting hot
No
N2400 or V2405
getting hot
Is any of
C2209, C2400
C2430, C3135
C3136 or C4213
short circuit
Replace
N2400 or V2405
Yes
No SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
N2202 or D2000
SL 4 Escalate
Is any of
C2216 or
C2326 to C2332
short circuit
No
SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
Is any of
C2205 or C1409
short circuit
Replace
N1400
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
No
SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
VDIG
Voltage
Ok
Is any of
C2215, C8122 or C1407
short circuit
N1400
getting hot
Replace
N1400
Yes
Yes
No No
SL 5 Replace
N2000
SL 4 Escalate
No
SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
Yes
Go to
Dead Phone
Problems part 3
Dead Phone Problems part 2
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING Dead Phone Problem
TROUBLESHOOTING
s - Display Problems
START
Dead Phone Problems part 3
NOTE !
Before following this guide
the Dead Phone Problems
part 2 must be finished.
VCORE12
Voltage
Ok
1.2 Volt DC at
MP 40 (V2206) 3.8 Volt DC at MP 44 (L2201)
No SL 5 Replace
C2226 and L2201
SL 4 Escalate
No
Yes
No
Yes
Is
MP 45 (ST2213)
short circuit to
Shield Can
Fence
SL 5 Replace
L2200
SL 4 Escalate
No
D2000
getting hot
SL 5 Replace
D2000
SL 4 Escalate
Yes
Check if following
components are
short circuit:
C2220, C2219, C2222, C2221
C2243, C2244, C2301 to C2308
C2412, C2311, C2419
C2313 to C2319
C2417, C2418, C2322, C2324
No
Are
all Components
Ok
SL 5 Replace
N2000
SL 4 Escalate
Yes
SL 5 Replace
Faulty Component
SL 4 Escalate
No
VCORE18
Voltage
Ok
Is
any of
C2239 or
C2342 to C2347
short circuit
D2000
getting hot
SL 5 Replace
D2000
SL 4 Escalate
No
No
SL 5 Replace
Faulty Component
SL 4 Escalate
Yes
Yes
3.8 Volt DC
at MP 8 (N2202_Pin 1)
and MP 9 (ST2216)
SL 5 Replace
C2238 and N2202
SL 4 Escalate
No
SL 5 Replace
N2202
SL 4 Escalate
No
Yes
Yes
Step 1:
Disconnect
VBATT and DCIO/SEPI
Step 2:
Connect: Display and Keypad
to the PBA
Step 3:
Connect Only: VBATT
Step 4:
Activate EMMA SW
Press the ”C” key and
connect USB Cable from PC
Flash the Phone with ITP SW
Yes
ITP SW Flash
Successful
SL 5 Replace
D2020
SL 4 Escalate
Yes
Go to
Flash Problems
No
Yes
SL 5 Replace
V2206 or N2000
SL 4 Escalate
Dead Phone Problems part 3
No
Display Backlights
Ok
1.8 Volt DC
at MP 2 (ST4205) and
0 Volt DC at
MP 1 (C4228)
Yes
No
Yes
Yes
SL 5 Replace
N2000
SL 4 Escalate
Fault trace SW
MMI
Display pattern
Init Screen Testing
Activate:
RGB Color Pattern
2.6 Volt DC
at MP 4 (ST4201) and
1.8 Volt DC at
MP 3 (ST4202)
No
START
Step 1:
Use TRS Fixture
Connect: Display, Keypad and VBATT
Start the Phone!
If the Display is working properly on the
TRS Fixture then replace Display
If not then continue with step 2.
Step 2:
Load ITP SW into the phone
Connect: DCIO/SEPI
Continue with
Display Problems TRS guide
SL 5 Replace
D2000
SL 4 Escalate
More than
1.8V Pk-Pk Pulses
at MP Z4200_Pins 5,6,7,8
short after TV Test was
activated
SL 5 Replace
Z4200
SL 4 Escalate
No
1.8 Volt DC at
MP Z4202_Pins
5,6,7,8
Yes
More than
1.8V Pk-Pk Pulses
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
More than
1.8V Pk-Pk Pulses
at MP Z4201_Pins 5,6,7,8
short after TV Test was
activated
More than
1.8V Pk-Pk Pulses
at MP Z4201_Pins 1,2,3,4
short after TV Test was
activated
No
SL 5 Replace
D2000
SL 4 Escalate No
SL 5 Replace
Z4201
SL 4 Escalate
Yes
No
SL 5 Replace
D2000
SL 4 Escalate
No
SL 5 Replace
Z4202
SL 4 Escalate
Yes
Go to
Display illumination
Problems
Turn off the phone
Disconnect: Display and Keypad
Restart the phone
Use Fault trace SW
MMI
Display pattern
Init Screen Testing
Activate: TV Test Pattern
0 Ohm
Between
MP Z4200_Pins
5,6,7,8 and Shield
Can Fence
Yes
No
0 Ohm
Between
MP Z4201_Pins
5,6,7,8 and Shield
Can Fence
No
Yes
0 Ohm
Between
MP Z4202_Pins
5,6,7,8 and Shield
Can Fence
No
Yes
Yes
Yes
Replace
X4202
Display Problems
SEMC Troubleshooting Manual
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C702
1221-7857 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Display Illumination Problems - Key Problems part 1
START
Step 1:
Use TRS Fixture
Connect Display and Keypad.
If the Display is working properly at the
TRS Fixture then replace the Display
If not then continue with step 2.
Step 2:
Load ITP SW into the phone
Use TRS Fixture
Connect: Display
VBATT and DCIO/SEPI
Continue with the
Display Illumination Problems TRS guide
No
Display Backlights
Ok
SL 5 Replace
N2000
SL 4 Escalate
No
3.7 V - 3.8 V DC
at MP 58 (TP4200)
Fault trace SW
MMI
Misc
Activate:
Display Backlight
15 Volt DC
at MP 58 (TP4200)
Replace
X4202
Yes
3.7 V - 3.8 V DC
at MP 37 (V4201
Anode)
No
SL 5 Replace
L4201 and L4203
SL 4 Escalate
No
SL 5 Replace
V4201
SL 4 Escalate
Yes
Yes
4.5 Volt
Pk-Pk Pulses
(±0.5V) at MP
V4200_Pin 3
No
SL 5 Replace
V4200 or L4200
SL 4 Escalate
Yes
Yes
0VoltDCat
MP 57 (TP4201) when
Display Backlight
Is On
Yes
SL 5 Replace
V4206 or N2000
SL 4 Escalate
No
Flash the phone with
EMMA SUCR SW
Disconnect Display from the PBA
Use Fault trace SW and go to:
MMI
Misc
Deactivate:
Display Backlight
Fault trace SW
MMI
Misc
Activate:
Display Backlight
Display Illumination problems
START
Step 1:
Use TRS Fixture
Connect: Display, Keypad and VBATT
Step 2:
Perform Keyboard Test in Service Tests Menu
If All Keys are working properly on the
TRS Fixture then replace Keypad
If not then continue with the
Key Problems TRS guide part 1
Problem with
Phone
On Key
Problem with
Phone
Off Key No
SL 5 Replace
V2402
SL 4 Escalate
Yes
Yes 3.6V-3.7V DC
at MP 49
(V2402_Cathode)
Remove
S2504
No
3.6V-3.7V DC
At MP 49
(V2402_Cathode)
SL 5 Replace
V2505 or N2000
SL 4 Escalate
No
Replace
S2504
Yes
Press the
On/Off Key
S2504
Yes
0 Volt DC at
MP 49
(V2402_Cathode)
Yes
Replace
S2504
No
Problem with
Volume Down
Key
1.8 Volt DC at
MP 73 (S2502_Pin C)
and MP 75
(S2502_Pin D)
Yes Press the
Volume Down Key
S2502
Yes
0 Volt DC at
MP 73 (S2502_Pin C)
and MP 75
(S2502_Pin D)
SL 5 Replace
V2511 or D2000
SL 4 Escalate
Yes
Replace
S2502
No
Remove
S2502
No
1.8 Volt DC at
MP 73 (S2502_Pin C)
and MP 75
(S2502_Pin D)
Replace
S2502
SL 5 Replace
V2511 or D2000
SL 4 Escalate
No
Yes
No
Go to
Key Problems part 2
No
Key Problems part 1
SEMC Troubleshooting Manual
11 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING Key Problems part
TROUBLESHOOTING
2 - LED Problems
START
Key Problems part 2
Note!
Before following this guide the
Key Problems part 1 must be
finished
Problem with
Volume Up
Key
1.8 Volt DC at
MP 69 (S2503_Pin C)
and MP 70
(S2503_Pin D)
Yes Press the
Volume Up Key
S2503
Yes
0 Volt DC at
MP 69 (S2503_Pin C)
and MP 70
(S2503_Pin D)
SL 5 Replace
V2512 or D2000
SL 4 Escalate
Yes
Replace
S2503
No
Remove
S2503
No
1.8 Volt DC at
MP 69 (S2503_Pin C)
and MP 70
(S2503_Pin D)
Replace
S2503
SL 5 Replace
V2512 or D2000
SL 4 Escalate
No
Yes
Problem with
All other
Keys
Replace
X2402
Yes
Problem solved Claim Component
X2402
Yes
SL 5 Replace
D2000
SL 4 Escalate
No
No
Flash the Phone with
EMMA SUCR SW
No
Key Problems part 2
Yes
No
Display
Backlight
Ok
Go to
Display illumination
Problems
Problem with
Upper Keypad LED
SL 5 Replace
V4205
SL 4 Escalate
No
Yes 0.2 Volt DC at
MP 11 (V4205_Pin 1) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Flash the Phone with
EMMA SUCR SW
0.3 Volt DC at
MP 60 (TP2004)
Replace
X2402
Yes
No
Problem with
Lower Keypad LED 0.8V-0.9V DC at MP 61 (TP2003)
Yes
Yes
SL 5 Replace
V4205
SL 4 Escalate
No
0.7V-0.8V DC at
MP 12 (V4205_Pin 4) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Problem with
Camera Keypad LED 3.5 Volt DC at MP 59 (TP2005)
Yes SL 5 Replace
V4206
SL 4 Escalate
No
2.5 Volt DC at
MP 10 (V4206_Pin 1) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Replace
X2402
Yes
No
No
START
Load ITP SW into the phone
Use TRS Fixture
Connect: Keypad FPC, Display
VBATT and DCIO/SEPI
Use Fault Trace SW
MMI
Init Screen Testing
Activate LED
according to following sequence:
Display Backlight
Upper Keypad LED
Lower Keypad LED
Camera Keypad LED
NOTE !
If all Keypad LED and Display LED are
working properly on the TRS Fixture
then replace Keypad or Display.
If not then continue with the
LED Problems TRS guide.
Replace
X2402
LED Problems
SEMC Troubleshooting Manual
12 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Main & VGA Camera - Camera Door Sensor & Flash LED Problems
START
Go to
Service Tests Menu and
perform:
Main and VGA Camera
Test
Are both
Main and VGA
Cameras having
problems
Load ITP SW into the phone
Use TRS Fixture
Connect:
Display, VBAT and DCIO/SEPI
Main and VGA Camera
must be mounted on the PBA !
Use Fault Trace SW
Perform Main and VGA Camera Test
Yes
Fault trace SW:
MMI, Misc, Init Screen Testing
Perform:
Main Camera Test and VGA Camera Test
Main and VGA
Camera working
properly
Flash the phone with
EMMA SUCR SW
Yes
No
Is the
Application
Result GPIO:
GPIO_03, GPIO_04 and
GPIO_05 = HIGH
Fault trace SW
1: MMI, Misc, Init Screen Testing,
Activate
Main Camera Test
2: Logic, GPIO Manager, Application, GPIO-Read:
GPIO_02, GPIO_03
GPIO_04, GPIO_05 and GPIO_09
SL 5 Replace
D2000
SL 4 Escalate
No
1.3 Volt DC
at MP 72 (TP2204
VCAM12)
Yes
SL 5 Replace
N2212
SL 4 Escalate
No
2.8 Volt DC at
MP 77 (TP2210
VCAMAF)
Yes
Replace
N2206
NoYes
2.8V DC at
MP 71 (TP2207
VCAMSA) and 1.8V DC
at MP 52 (TP2208
VCAMIO)
Replace
N2209 No
13 MHz at
MP 76 (ST4304) and
1.8 Volt at
MP 74 (ST4303)
Yes
SL 5 Replace
D2000
SL 4 Escalate No
Is the
Application
Result GPIO:
GPIO_02 = LOW and
GPIO_09 = HIGH
Yes
Fault trace SW
1: MMI, Misc
Init Screen Testing
Activate:
VGA Camera Test
2: Logic, GPIO Manager
Application
GPIO-Read:
GPIO_02 and GPIO_09
Yes
Is the
Application
Result GPIO:
GPIO_02 = HIGH and
GPIO_09 = LOW
Retest
Main and VGA
Camera
Yes
Is the
problem with
Main Camera
Replace
VGA Camera
SL 5 Replace
D2000
SL 4 Escalate No
No
Replace
Main Camera
Yes
Main Camera
Ok
Claim
Main Camera
Yes
Replace
X4301 No
No
VGA Camera
Ok
Claim
VGA Camera
Yes
Replace
X4300
No No
Main and VGA Camera Problems
START
Step 1:
Flash the phone with the EMMA SUCR SW
If successful claim SW Flash, if not go to Step 2.
Step 2:
Replace Flash FPC and retest the phone
If successful claim Flash FPC, if not go to Step 3.
Step 3:
Load ITP SW into the phone
Use Fault Trace SW
Use TRS Fixture
Connect: Flash FPC,
VBATT and DCIO/SEPI
and continue with the
Camera Door Sensor and Flash LED Problems TRS guide
3.8 Volt DC
at MP 87 (ST8101)
3.7 V - 3.8 V DC
at MP 88 (V8100
Anode)
No
SL 5 Replace
L8100
SL 4 Escalate
Yes
SL 5 Replace
V8100
SL 4 Escalate
Restart the Phone!
Fault trace SW
MMI
Misc
Init Screen Testing
Activate:
Camera Flash LED
Yes
1.5 V - 1.8 V DC
at MP 78 (R4231)
No
Replace
X4201
4.5 V – 5.0 V DC
at MP 87 (ST8101)
SL 5 Replace
N8100
SL 4 Escalate No
Is
V8101
Short Circuit
Yes
SL 5 Replace
V8101
SL 4 Escalate
Yes
Replace
X4201
No
Is
Problem Solved
Claim Component
X4201 Yes
SL 5 Replace
D2000
SL 4 Escalate No
Yes
No
Camera Door Sensor and Flash LED Problems
SEMC Troubleshooting Manual
13 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING Vibrator Problems
TROUBLESHOOTING
SL 5 Replace
N2000
SL 4 Escalate
Clean Pad B4200 A
Clean Pad B4200 B
Yes
2.8 Volt
Pk-Pk Pulses at
MP 82 (C4206
VIBR_OUT)
No
Yes
No
Connection
between
PBA GND and
MP 79 (B4200_Pad B)
Ok
Is
MP 82 (C4206)
short circuit to
Ground
No
Yes
SL 5 Replace
C4206, C4207,L4202
SL 4 Escalate
Scrap
PBA
START
Step 1:
Load ITP SW into the phone
Step 2:
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
MMI-Misc-Init Screen Testing
Activate:
Vibrator Test
NOTE !
If the Vibrator is working properly on the TRS Fixture
then replace vibrator if not then continue with
Vibrator Problems TRS guide
Is
L4204
Max 1.5 Ohm
Yes
SL 5 Replace
L4204
SL 4 Escalate No
Vibrator Problems
SEMC Troubleshooting Manual
14 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING Charging Problems
TROUBLESHOOTING
- USB/VBUS Charging Problems
5 Volt DC at
MP 101 (R2287)
No
Replace
N2402
SL 5 Replace
N2000
SL 4 Escalate Yes
Connect
DSU-60/ USB cable
from PC to the phone
No
5 Volt DC at
MP 102 (C2422) Yes SL 5 Replace
C2421 or C2422
SL 4 Escalate
START
Step 1:
Perform System Connector Protection Test
If the test is pass go to step 2
Step 2:
Use Phone with Normal SW
Use TRS Fixture
Connect: VBATT
Yes
Is any of
C2421 or C2422
short circuit
No
SL 5 Replace
L2407
SL 4 Escalate
Is
L2407
Max 0.5 Ohm No
Replace
System Connector
X2300
Yes
Disconnect
VBATT and USB Cable
From the phone
USB/VBUS Charging Problems
Yes
No
Use TRS Fixture
Connect: VBATT
and DCIO/SEPI
Use Fault Trace SW
Perform
Battery Calibration
No
Battery Calibration.
Passed
Current Calibration
Passed
No
No
Flash the phone with
EMMA SUCR SW
and go to
Charging Test
No
3.2V and 4.1V DC
at MP 80 (TP2200) during
Battery Calibration
SL 5 Replace
R2200
SL 4 Escalate
5 Volt DC at
MP 117 (C2201
DCIO)
Replace
System Connector
X2300
Phone
consuming more
than 10mA Charger
Current
(DCIO/SEPI)
Yes
Start
Current Calibration
(C.C.)
SL 5 Replace
R2201
SL 4 Escalate
Replace
V2202
R2201
0.3 Ohm
No
MP 46 (C2241
DCIO_INT)
Higher than
3,8 Volt DC
MP 121 (R2201
CHSENSEP) Higher
than 3,8 Volt DC
(During C.C.)
MP 119
(V2202_Pin 2
CHREG) Lower than
MP 46 (C2241)
(During C.C.)
Yes No
Yes
No
Phone
Consuming
DCIO/SEPI Current
(During Current
Calibration)
Yes
Replace
X2200
Yes
Is
MP 81 (TP2202)
Short circuit to
Shield Can
Fence
Yes
Yes
SL 4 Replace
V2421
SL 5 Replace
C2423 and C2424
Is
Connection
between
Shield Can Fence and
Power Supply GND
Ok
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
Yes
Yes
No
No No
Yes
Use TRS Fixture
Connect: VBATT
and DCIO/SEPI
Use Fault Trace SW
SL 5 Replace
N2000
SL 4 Escalate
START
Step 1:
Perform System Connector Protection Test
If the test is pass 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 and perform
Battery and Current Calibration
NOTE !
It is very important to follow
instrument setting instructions during
Battery and Current Calibration.
Charging problems
SEMC Troubleshooting Manual
15 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING SIM Problem
TROUBLESHOOTING
s - Memory Stick Problems
START
Step 1:
Load ITP SW into the phone
Step 2:
Insert Test SIM
Connect:
Dummy Battery (VBATT)
and DCIO/SEPI
Use Fault Trace SW
No
Sim Com Test
Passed
1.8 Volt DC at
MP114 (X2403_Pin 1 )
Yes
Yes
Replace
X2403 Yes
Remove Test SIM
Use TRS Fixture
Connect: VBATT
and DCIO/SEPI
Use Fault Trace SW
Activate:
SIMVCC
SIMVCC On
Activate:
SIMRST
Yes
SIMVCC On
SIMRST On
Activate:
SIMCLK
0.9V-1V DC at
MP 95 (X2403_Pin 3)
Yes
SIMVCC On
SIMRST On
SIMCLK On
Activate:
SIM DATA
1.8 Volt DC
at MP 91 (V2408)
Is
MP 91 (V2408)
Short circuit to
GND
MP 89 (X2403_Pin 5)
Connected to the
PBA GND
No
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
Yes
No
Fault Trace SW
Logic
SIM Card control
Activate:
SIM Com Test
Are any of
C2406 or C2411
Short circuit
No
SL 5 Replace
C2406 or C2411
SL 4 Escalate Yes
No
10 Kohm
Between MP 96
(X2403_Pin1) (Red
Probe) and MP 90
(X2403_Pin 7)
(Black Probe)
SL 5 Replace
R2419
SL 4 Escalate
No
Yes
1.8 Volt DC at
MP 47 (C2406)
No Replace
X2403
Yes
1.8 Volt DC at
MP 111 (X2403_Pin 2) No Replace X2403
0.9V-1V DC at
MP 93 (V2407)
No Yes
SL 4 Replace
X2403
SL 5 Replace
V2408
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
1.8 Volt DC
at MP 92 (V2404 )
SL 5 Replace
N2000
SL 4 Escalate
Yes
No
0.9V-1V DC at
MP 48 (ST2400)
No
SL 5 Replace
V2407
SL 4 Escalate
No
Replace
X2403
Yes
Flash the phone with
EMMA SUCR SW
SIM Problems
Load ITP SW into the phone
Use TRS Fixture
Connect :
VBATT and DCIO/SEPI
Insert Memory card
Use Fault Trace SW
Memory Stick Test
Passed
Yes
Is
X2490
damaged
No Replace
X2490
Yes
Fault trace SW
Logic
SIM Card Control
Activate:
Memory Stick Test
START
No
No
0 Volt DC at
MP 62 (R2406
MSDETECT)
Yes
Flash the phone with
EMMA SUCR SW
SL 5 Replace
N2000
SL 4 Escalate
Problem solved SL 5 Replace
D2000 and X2490
SL 4 Escalate
No
Yes
Claim Component
N2000
Memory Stick Problems
SEMC Troubleshooting Manual
16 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING Audio Internal Problems -
TROUBLESHOOTING
Audio External Problems
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
SL 5 Replace
N2000
SL 4 Escalate
Yes Replace
B3100
Yes
More than
100m Volt AC Pk-Pk
at MP 14 (L3103 BEARP)
and MP 15 (L3104 BEARN)
when blowing in the PBA
Mic
No
2.2 Volt DC
at
MP 27 (R3131)
No
More than
100mVolt AC Pk-Pk
at MP 28 (R3132) when
blowing in the
PBA Mic
Fault Trace SW
Audio and FM Radio
Audio Loop test
Audio Input: Mic1
Loop Mode: Analog
Audio Output: Loudspeaker
Apply Audio Loop
Whistle as close as possible
in the PBA Mic
More than
100mVolt AC Pk-Pk at
MP 54 (X3102) and MP 53
(X3103) when whistle in
the PBA Mic
Yes
No
No
SL 5 Replace
N2000
SL 4 Escalate
More than
100m Volt AC Pk-Pk at
MP 17 (X3100) and MP 16
(X3101)
when blowing in the
PBA Mic
Yes
No
SL 5 Replace
V3101, V3102,
L3103 or L3104
SL 4 Escalate
1.9 Volt DC
at MP 54 (X3102) and
MP 53 (X3103)
Yes
No
Go to
Audio External
Problems
No
Are any of
V3105, V3106
C3137 or C3123
short circuit
SL 4 Replace
V3105 or V3106
SL 5 Replace
C3137 or C3123
Replace
N3100
More than
100mVolt AC Pk-Pk
at MP 35 (C3137) and MP
36 (C3123) when whistle
in the PBA
Mic
No
Yes
1.9 Volt DC
at MP 56 (L3108) and
MP 55 (L3109)
No Yes
Yes
SL 5 Replace
D2000
SL 4 Escalate
1.8 Volt DC
at MP 18 (R3137
AMPCTRL) Yes
No
No
0 Volt DC at
MP 109
(V2420_Cathode)
Yes
Replace
N2400
SL 5 Replace
L3108 and L3109
SL 4 Escalate
Replace
V2405
No
Are any of
V3103 and V3104
Short circuit
SL 5 Replace
V3103 or V3104
SL 4 Escalate
Yes
Fault Trace SW
Logic
GPIO Manager
Access:
Set GPIO_03 to High
Application:
Set GPIO_01 to High
Access
GPIO_02 Read
1.8 Volt DC
at MP 21 (R2435)
SL 5 Replace
D2000
SL 4 Escalate
No
2.6 Volt DC
at MP 22
(V2405_ Pin 5)
Yes
0 Volt DC
at MP 23 (V2405_Pin
3) and Access: Result
GPIO_02=HIGH
Yes
Yes
No
SL 4 Replace
V2420
SL 5 Replace
R2440
START
Step1
If Mic problem go to step 2.
If Loudspeaker or Earphone problem
replace Speaker Box or Earphone and
retest the phone. If successful claim
Speaker Box or Earphone
If not then go to step 2.
Step 2:
Perform
System Connector Protection Test.
If the test is pass go to step 2
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
No
Yes
Audio Internal problems
START
Step 1:
Perform
System Connector Protection
Test
If the test is pass 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
continue with the Audio External
Problems TRS guide.
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 in
AUX earphone when
blowing into the
AUX Mic
No
More than
100mV AC Pk-Pk
at MP 33 (C3124 MICP_int)
and MP 30 (C3125 MICN_int)
when blowing in to the
AUX mic
Yes
More than
100mV AC Pk-Pk
At MP 104 (C2415 SPR)
and MP 103 (C2416 SPL)
when blowing in to the
AUX mic
Is
L2403 and L2404
Max 2 Ohm
No Yes
Replace
System Connector
X2300
Yes
No
Disconnect
DCIO/SEPI cable
and Insert PHF set
Blow into the
AUX Mic
Is
MP 108
(X2300_Pin 9)
Connected to
MP 106 (L2402)
No
Yes
Is
MP 107
(X2300_Pin 10)
Connected to
MP 105 (L2401)
No
Yes
No
Yes
Yes
L2401
Ok Replace L2401
L2402
Ok Replace L2402
No No
Yes
Audio Internal
Tested
Yes
No
More than
100mV AC Pk-Pk
at MP 32 (C3113) and
MP 29 (C3120) when
blowing in to the
AUX mic
Replace
N3101
Yes
SL 4 Replace
C3113 and C3120
SL 5 Replace
N2000
No
Replace
System Connector
X2300
Replace
N3101
2.2 Volt DC at
MP 99 (C3169) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Replace
System Connector
X2300
Go to
Audio Internal
problems
Flash the phone
with
EMMA SUCR SW
Disconnect
VBATT and
DCIO/SEPI
Audio External problems
SEMC Troubleshooting Manual
17 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING FM Radio Problem
TROUBLESHOOTING
s - Bluetooth Problems
START
Perform System Connector
Protection Test
If test is pass
then continue with the
FM Radio Problems
TRS guide.
Fault trace SW
1: Audio and FM Radio
FM Radio
Audio Output: Loudspeaker
Frequency: According to
Signal Generator Instrument Settings
Set FM Radio
2: Logic, GPIO Manager, Application
GPIO-Read:
GPIO_00
Load ITP SW
into the phone.
Use TRS Fixture
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW
FM Radio
is not
working neither with
Loudspeaker nor
PHF set
No
Replace
N3101
PHF
working properly
during
Voice call
No
Yes
Yes SL 5 Replace
N2000
SL 4 Escalate
Claim Component
System Connector
X2300
Is the
Application
GPIO_Read:
GPIO_00 = HIGH
SL 5 Replace
D2000
SL 4 Escalate
No
26 MHz BT_CLK
At MP 5 (R2101)
Yes
Replace
D2105
No
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 Freq. Channel
Example:
103 MHz in Sweden
Amplitude: 25.0 uVrms
FM Dev: +/-22.5 kHz
FM Rate: 1kHz
Yes
No
Replace
C3145 or C3146 Yes
SL 4 Replace
N1400
SL 5 Replace
L3301 and C3301
No
Can you
hear 1KHz Tone
out from the
Loudspeaker
Yes
SL 5 Replace
N2000
SL 4 Escalate
No
Yes
Is
L2408=Max 1.5 Ohm
L2410=Max 0.5 Ohm
SL 4 Replace
L2408
SL 5 Replace
L2410
No
Replace
System Connector
X2300
Yes
Signal Ok
More than
40mVolt AC Pk-PK
1 KHz signal at
MP 34 (C3145) and
MP 31 (C3146)
Yes
Is any of
C3145 or C3146
Short circuit
Replace
V2425 No
FM Radio Problems
START
Step 1:
Flash the phone with EMMA
SUCR SW and retest the
phone.
If successful claim SW
Flashing
If not then go to Step 2.
Step 2:
Continue with the
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 54 (X1302
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
-13dBm at
MP X1302
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
No
-10dBm at
MP 65 (Z1400_Pin 1)
(Measure on the top of
Pin 1) (±5dBm)
No
Replace
BT Antenna or
X1301 and X1302
Yes
-13dBm at
MP 63 (Z1400_Pin 5)
and
MP 64 (Z1400_Pin 7)
(±5dBm)
No Replace
N1400
No SL 5 Replace
Z1400
SL 4 Escalate
Yes
26 MHz Signal
At MP 5 (R2101
BT_CLK)
No
No
2.7 Volt DC at
MP 25 (ST2208
VBT27)
Yes
1.8 Volt DC
At MP 20 (ST2207
VDDE18) and 2.7 Volt DC
at MP 26 (ST2209
VDIG)
Yes No
Replace
N1400
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate
Load ITP SW
Into the phone
Use TRS Fixture
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW
Replace
BT Antenna or
X1301 and X1302
Replace
D2105
More
than 60 Kohm
between MP 5 (R2101)
(Red Probe)
and Shield Can Fence
(Black Probe)
Yes
Replace
N1400
No
Bluetooth Problems
SEMC Troubleshooting Manual
18 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING GSM Network Problems
TROUBLESHOOTING
START
Max
0.5 Ohm between
MP 51 (X1200_Pin 1) and
MP 50 (X1200_Pin 2)
Replace
X1200
No
Max
0.5 Ohm between
MP 50 (X1200_Pin 2)
and MP 67 (X1201)
Yes Is L2409
Max 0.5 Ohm
No SL 5 Replace
L2409
SL 4 Escalate
Yes
Replace
X1201
No
Max
0.5 Ohm between
Shield Can Fence and
MP 66 (X1202)
MP 68 (X1203)
Yes
Replace
X1202 or X1203 No
1: Load ITP SW into the
Phone
2: Use TRS Fixture
Connect:
VBATT: 3.8 Volt, Limiter 3A,
DCIO/SEPI and
SMK RF Probe
3: Use Fault Trace SW
Yes 2.8 Volt DC
at MP 43 (C2230
VccA)
SL 5 Replace
N2000
SL 4 Escalate
No
Perform
TX Measurements at the
following GSM Bands:
GSM 850, GSM 900
DCS 1800 and PCS 1900
Yes
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
Measurement Mode:
Repeat, Burst
Correction: 1.6 dB
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
Phone
Reported power
at 850 and 900=33dBm
1800 and 1900=30dBm
(±3dBm)
Go to
GSM Network
Problems RX part
Yes
Is
Phone
Reported Power
±5 dBm
No
Go to
SERP Calibration
Yes
Fault Trace SW
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band : GSM 850
Channel : 128
Power Level: 5
No 1.4V-1.6V Pk-Pk
Pulses at
MP 123 (R1000
VAPC)
Replace
N1200
No
Fault Trace SW
Switch GSM Mode
Settings to:
TX Static
Yes
Use Spectrum Analyzer
Instrument settings:
TX Freq: 824.2 MHz
Span: 300 kHZ
Amplitude: -5 dBm
BW: 1 kHz
Use RF Probe with
10:1 Divider
Signal at
MP 122 (Z1001)
-20 dBm
(±5dBm)
SL 5 Replace
N1002
SL 4 Escalate
No
Fault Trace SW
TX and RX GSM
GSM Mode Settings:
TX Static
GSM Radio Settings:
Select Band : DCS 1800
Channel : 512
Yes
Use Spectrum Analyzer
Instrument settings:
TX Freq: 1710.2 MHz
Span: 300 kHZ
Amplitude: -5 dBm
BW: 1 kHz
Use RF Probe with
10:1 Divider
Signal at
MP 124 (C1014)
-10 dBm
(±5dBm)
Replace
N1200
SL 5 Replace
N1002
SL 4 Escalate
No
Yes
Go to
SERP Calibration
GSM Network Problems TX part
START
Note!
Before following this guide the
GSM Network Problems TX part
must be finished!
Connect Mobile Phone Tester
Instrument Settings:
System Mode:
TX/RX Tester Mode (GSM)
GSM BAND: Select Channel:
GSM 850 128
GSM 900 38
DCS 1800 512
PCS 1900 512
RF Power ON: -60 dBm
Correction: -1.6 dBm
Measurement Mode:
Repeat, CW
Fault Trace SW
TX and RX GSM
GSM Mode Settings:
RX Switched
GSM Radio Settings:
Select Band: Select Channel:
GSM 850 128
GSM 900 38
DCS 1800 512
PCS 1900 512
GSM RSSI Measurements:
Start RSSI Test
RSSI Test
Passed
No
Perform
GSM RSSI Test at
following GSM Bands:
GSM 850
GSM 900
DCS 1800
PCS 1900
Replace
N1200
Yes
Go to
WCDMA Network
Problems TRS guide
GSM Network Problems RX part
SEMC Troubleshooting Manual
19 (115)

C702
1221-7857 rev. 1
TROUBLESHOOTING WCDMA Network Problems
TROUBLESHOOTING
1: Load ITP SW
into the phone
2: Use TRS Fixture
Connect:
VBATT: 3.8V, Limiter 3A
DCIO/SEPI: 5V, Limiter 2A
3: Use Fault Trace SW
START
Note!
Before following this guide
the GSM TX and RX
Network Problems
TRS Guides must be
finished!
Fault Trace SW
TX and RX WCDMA
Radio Settings:
Select Band: BAND I
Fast Select Channels:
Ch LOW
Modes: Max Pwr 23dBm
Instrument Settings:
System Mode:
TX/RX Tester Mode
WCDMA
Downlink Channel:
BAND I: 10562
Measurement Mode:
Repeat
Correction: 1.6 dB
Max Pwr 23dBm
Ok
(±3dBm)
Perform
WCDMA
Max Pwr 23dBm
Test
No
Go to
WCDMA Network
Problems RX part
Yes
Is the
current
consumption
between
550 – 700 mA
Replace
N1200 Yes
Go to
SERP Calibration No
3.1V-3.3V DC at
MP 84 (L2207
VCC_WPA) Yes
3.7V-3.8V DC at
MP 83 (R2210
VBATI) No
SL 5 Replace
R2210
SL 4 Escalate No
1.8Volt
DC at MP 85 (R2299
DCDC_EN)
1.8V at MP 125 (C417
WPA0_EN)
(Squid)
Yes
SL 5 Replace
D2000
SL 4 Escalate No 1.2V-1.8V DC at
MP 86 (ST2217
WPAVCC)
Yes
SL 4 Replace
N2205
SL 5 Replace
L2207
Yes
26MHz at
MP 126 (C511
WBCLK)
(Squid)
No
Replace
N1200 Replace N1210
No Yes
Go to
SERP Calibration Go to SERP Calibration
WCDMA Network Problems TX part
START
NOTE!
Before following this guide 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
Go to
GO-NOGO
Test
Yes
Replace
N1210
WCDMA Network Problems RX part
SEMC Troubleshooting Manual
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