Sony Ericsson U10 Programming manual

Aino - U10
1235-5821 rev. 1
Troubleshooting Manual
APPENDIX
ABOUT
ABOUT TROUBLESHOOTING MEASUREMENT POINTS
Aino - U10
SEMC Troubleshooting Manual
1(57)

Aino - U10
1235-5821 rev. 1
ABOUT Contents
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.
Note
When disassembling and reassembling the phone the instructions and processes described in the
Mechanical Working Instructions, the Generic Repair Manual and the Repair Center Handbook
must be followed.
Rev. Date Changes / Comments
111/20/2009Inititalrevision.
Revision History
Table of Contents
ABOUT
Contents 2
Equipment List 3
TROUBLESHOOTING
Dead Phone Problems 7
Display Problems 8
Display Illumination Problems 8
Touch Display Problems 9
Opto Sensor Problems 9
Proximity Sensor Problems 10
On/Off Key Problems 10
Keylock Switch Problems 11
Volume Up and Down Problems 11
Numeric Keyboard Problems 12
Keyboard Illumniation Problems 12
Navigation Keys Problems 13
Navigation Keys Illumniation Problems 13
Flash LED Problems 14
Vibrator Problems 14
Camera Problems 15
Camera Auto Focus and Shutter
Problems 15
Charging Problems 16
USB Charging Problems 16
Hands-Free (PHF) Detection Problems 17
Hands-Free (PHF) Aux Microphone
Problems 17
Hands-Free (PHF) Aux Earphone
Problems 18
Microphone Problems 18
Earphone Problems 19
Loudspeaker Problems 19
Data Communication Problems 20
FM Radio Problems 20
Bluetooth Problems 21
GSM Network Problems 22
WCDMA Network Problems 22
A-GPS Problems 23
WLAN Problems 24
Alert and Real Time Clock Problems 24
Accelerometer Problems 25
Slide Sensor Problems 25
SIM Problems 26
Memory Stick Problems 26
System Connector Protection Test 27
Backup Capacitor Test 27
ASIC Revision Test 28
Measurement Points Pictures 29
MEASUREMENT POINTS
Primary Side 36
Secondary Side 37
Keyboard FPC Assembly 38
TOP PBA 39
Mainboard Schematic Top 40
Core Power Management 41
Core Memories 42
Core General 43
Core GSM & UMTS 44
Peripheral Audio 45
Peripheral Cards 46
Peripheral Optics 47
Peripheral Camera 48
Peripheral BT / WLAN 49
Peripheral AGPS 50
Keyboard FPC Assembly 51
Top PBA 52
APPENDIX
Troubleshooting Fixture Setup
Instructions 53
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
ABOUT Equipment List
ABOUT
Aino, U10a, U10i Equipment List
Info: More information about the equipment used for TRS can be found in the following location:
CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf or matris.xls
– U Model Tab.
Troubleshooting Fixture
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Part number: 1230-5666
Note! More information about the TRS Fixture Kit can be found in the Trouble Shooting Fixtures
Setup Instructions document which is included at the end of this TRS Manual.
Dummy Battery
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
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 – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Instrument Settings:
Voltage: 3.8 Volt
Limiter: 2.0 A
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.
Power Supply Channel 2 (DCIO/SEPI)
Agilent 6632B or similar
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Instrument Settings:
Voltage: 5.0 Volt
Limiter: 2.0 A
Oscilloscope
Agilent DSO7052A or similar
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Digital Multimeter (DMM)
Fluke 83 or similar
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Note! The 0,64 mm Test Probes is recommended by Sony Ericsson when the DMM is used.
See Picture 1.
Picture 1
Spectrum Analyzer
R&S FSL 9 kHz – 3 GHz or similar
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
RF Probe
HP 85024A or similar
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
RF Probe Snap-in
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Part number: 1230-5894
FM Signal Generator
R&S SMC100A or similar
Location: -
PC Package & PC Software
PC Package (Computer)
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Urquell Fault Trace SW with project file
Location: CSPN – Repair Instructions – Electrical – Aino, U10a, U10i – Trouble Shooting Application
– Project File: Aino_U10a_U10i_Project_R1A
Drivers
SEPI BOX Drivers
Location: http://emma.extranet.sonyericsson.com /– Drivers – DSS / SEPI / SEMUTS
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
ABOUT
ABOUT
Equipment List
SE Communication Interface SEPI BOX
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Part number: LTN 214 1484
See Picture 2.
Picture 2
Cables
USB Computer Cable
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
See Picture 3.
Picture 3
DSU-60/USB Cable
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Part number: KRY 101 1413
See Picture 4.
See Picture 4
RF Test Cable Flexible
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Part number: RPM 119 885
See Picture 5.
Picture 5
SEPI Interface Cable – A1
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
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 – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
Power Cable BLACK to Power Supply Channel 1 (VBATT)
Maximum Length: 1m
Location: CSPN – Repair Instructions – Mechanical – Tool Catalogue – RepairToolsCatalogue.pdf
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
ABOUT
ABOUT
Customized Power Supply Channel 2 Cable (DCIO/SEPI)
Customize the cable according to the instructions below:
(Step 1, Step 2, Step 3 and Step 4)
Step 1:
Take the CST-75 battery charger and cut off the charger according to Picture 7.
Picture 7
Note! The Cable length must be exactly 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 backside of the Power Supply Channel 2 (DCIO/SEPI) according to Picture 8.
Picture 8
Step 3:
Cut off insulating material from the inside of the charger plug according to Picture 9.
Picture 9
Step 4:
Connect DCIO Cable and SEPI Interface Cable – A1 according to Picture 10.
Picture 10
Picture 11
Note! This setup is wrong.
Equipment List SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
ABOUT
ABOUT
Connection Instructions for the Dummy Battery
This is the correct setup when the Dummy Battery is used.
See Pictures 12 and 13.
Picture 12
Picture 13
Test Cards
Local SIM
Any functional Local SIM Card
Memory Card
SanDisk microSD™
See picture 14.
Picture 14
Equipment List SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Dead Phone Problems
TROUBLESHOOTING
START
NOTE !
Before following this guide the Dead Phone Problems part 1 TRS guide
must be finished.
Use TRS Fixture
Connect VBATT and DCIO/SEPI 32 kHz
RTCCLK at
MP 37 (ST2103)
SL 4 Replace
B2100
SL 5 Replace
N2000
No
26 MHz
at MP 4 (R2123
MCLK)
Yes
No
1.8 Volt DC at
MP 36 (ST2218
VDDE18)
SL 5 Replace
N2000
SL 4 Escalate
No
Yes
2.8 Volt DC at
MP 13 (C1218
LDOA_OUT)
No 2.8 Volt DC at
MP 33 (C1207
VRAD28)
Yes Replace
N1211
No
1.2 Volt DC at
MP 3 (C2316
VCORE12)
Yes
SL 4 Replace
L2200
SL 5 Replace
N2000
No
2.6 Volt DC at
MP 14 (ST2216
VAUDIO26) Yes
SL 5 Replace
N2000
SL 4 Escalate
No
2.5 Volt DC at
MP 2 (ST2300
VANA25)
Yes
No 1.8 Volt DC at
MP 39 (ST2232
VMEM)
Yes
SL 4 Replace
N1200
SL 5 Replace
N2010 or N2000
Yes
Disconnect:
VBATT and DCIO/SEPI
Remove the PBA from TRS Fixture
No
Is L2202
= Max 1 Ohm Replace L2202
No
Replace
N2207
Yes
Yes SL 5 Replace
N2010 or N2000
SL 4 Escalate
Dead Phone Problems part 2
START
Step 1:
Try to Recover the Phone by using EMMA SW:
Update SEMCBOOT after this Run EMMA SUCR SW
If successful claim SW Flash
If not go to step 2.
Step 2:
Use TRS Fixture
Perform a visual inspection of
the X2201 Battery Connector
Is the X2201
Battery Connector
Ok and L2203
= Max 1 Ohm
Replace
X2201 or L2203
Yes
No
Connect VBATT to TRS Fixture
Is the
Current Consumption
more than
1mA
Is the
RF Module
N1200 (Tiger)
getting hot
Replace
N1200 Yes
Try to trace the Faulty Component
by using Freezing Spray
Yes
Is the
Current Consumption
still more than
1mA
Go to
Dead Phone
Problems part 2
No
SL 5 Remove
N2000
SL 4 Escalate
SL 5 Replace
N2000
SL 4 Escalate No
Try to trace the
Faulty Component
by using Freezing
Spray
Yes
No
Dead Phone Problems part 1
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Display Problems
TROUBLESHOOTING
- Display Illumination Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Slider FPC Assy and Display 3" TFT to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Init Screen Testing
Display Pattern
Activate:
RGB Color Pattern
Is the
Display
Ok
Replace
Display 3" TFT or
Slider FPC Assy
Yes
2.7 Volt DC at
MP 12 (ST2220
VDIG) No SL 5 Replace
N2000
SL 4 Escalate
No
Yes
1: Disconnect: VBATT and DCIO/SEPI
Disconnect: Slider FPC Assy and Display 3" TFT from the PBA
2: Connect: VBATT and DCIO/SEPI
SL 4 Replace
X4200
SL 5 Replace
N2010
Display Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Slider FPC Assy and Display 3" TFT to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Init Screen Testing
Led and Backlight
Activate:
Display Backlight
Is the
Display Backlight
Ok
Replace
Display 3.47 TFT or
Slider FPC Assy
Yes
No
Replace
V4402 or N4400
Yes
1: Disconnect: VBATT and DCIO/SEPI
Disconnect: Slider FPC Assy and Display 3" TFT from the PBA
2: Perform visual inspection of the
X4200 Board to Board Connector
Is the
X4200
BtB connector
Ok
Replace
X4200
No
Is L4401
= Max 1 Ohm Replace L4401
NoYes
Display illumination Problems
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Touch Display Problems
TROUBLESHOOTING
- Opto Sensor Problems
Is the
X4200
BtB Connector
Ok
No
SL 5 Replace
N2010
SL 4 Escalate
START
Step 1:
Replace Display 3" TFT and retest the Phone
If successful claim Display 3" TFT if not go to step 2.
Step 2:
Replace the Slider FPC Assy and retest the Phone
if successful claim Slider FPC Assy if not go to step 3.
Step 3:
Perform a visual inspection of the
X4200 Board to Board Connector
Replace
X4200
Yes
Touch Display Problems
2.8 Volt DC at
MP 1 (C4401)
Yes
No
START
Step 1:
Replace PBA Top and retest the Phone
If successful claim PBA Top if not go to step 2.
Step 2:
Replace Display 3" TFT and retest the Phone
If successful claim Display 3" TFT if not go to step 3.
Step 3:
Replace the Slider FPC Assy and retest the Phone
if successful claim Slider FPC Assy if not go to step 4.
Step 4:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Init Screen Testing
Misc
Activate:
Opto Sensor
Replace
N4400
Replace
X4200
1: Close the TRS SW
Disconnect: VBATT and DCIO/SEPI
Remove PBA from the TRS Fixture
2: Perform a visual inspection of the
X4200 Board to Board Connector
Is the
X4200
BtB connector
Ok
No
SL 4 Replace
N4400
SL 5 Replace
N2000 or N2010
Yes
Opto Sensor Problems
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Proximity Sensor Problems
TROUBLESHOOTING
- On/Off Key Problems
Is the
X4200
BtB Connector
Ok
No
SL 5 Replace
V4201, V4202 or
N2000
SL 4 Escalate
START
Step 1:
Replace PBA Top and retest the Phone
If successful claim PBA Top if not go to step 2.
Step 2:
Replace Display 3" TFT and retest the Phone
If successful claim Display 3" TFT if not go to step 3.
Step 3:
Replace the Slider FPC Assy and retest the Phone
if successful claim Slider FPC Assy if not go to step 4.
Step 4:
Perform a visual inspection of the
X4200 Board to Board Connector
Replace
X4200
Yes
Proximity Sensor Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Keyboard FPC Assembly to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Key Test
Press the On/Off Key on the Keyboard
Is the
On/Off Key
Ok
No
Replace
X2500
Replace
Keyboard FPC
Assembly
Yes
No
Is the
Problem with
Power Off
1.8 Volt DC at
MP 6
(V2475_Anode) Yes
Replace
V2475 Yes
SL 5 Replace
N2010
SL 4 Escalate No
Yes
3.7 Volt DC at
MP 8
(V2475_Cathode)
No
SL 5 Replace
N2000
SL 4 Escalate
On/Off Key Problems
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Keylock Switch Problems
TROUBLESHOOTING
- Volume Up and Down Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Key Test
Press the Keylock Switch (S2401) on the PBA
Is the
Keylock Switch
(S2401)
Ok
Replace
Rear Cover
Assembly or Rear
Cover Assembly
Recessed
Yes
No
SL 4 Replace
S2401
SL 5 Replace
C2477 or N2010
1.8 Volt DC at
MP 9 (ST2412) Replace S2401
Yes
Is any
of MP 31 (S2401_Pin A)
or MP 32 (S2401_Pin B)
Short circuit to
GND
No
No
SL 4 Replace
S2401
SL 5 Replace
N2010
Yes
Keylock Switch Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Keyboard FPC Assembly to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Key Test
Press the Volume Up and Down keys on the
Keyboard FPC Assembly
Is the
Volume Up and Down
Ok
Replace
Keyboard FPC
Assembly
YesNo
Go to
Navigation Keys
Problems
Volume Up and Down Problems
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Numeric Keyboard Problems - Keyboard Illumniation Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Keyboard FPC Assembly to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Key Test
Test the Numeric Keyboard by pressing all numeric keys on the
Keyboard FPC Assembly
Are all
Numeric Keys
Ok
Replace
Keyboard FPC
Assembly
Yes
No
Test the Keylock Switch by pressing S2401 and
On/Off Key by pressing On/Off key on the Keyboard FPC Assembly
Is the Keylock
Switch
Ok
Go to
Keylock Switch
Problems
No
Is the
On/Off Key
Ok
Yes
Go to
On/Off Key
Problems
No
SL 4 Replace
X2500
SL 5 Replace
C2487 or N2010
Yes
Numeric Keyboard Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Keyboard FPC Assembly to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Init Screen Testing
Led and Backlight
Activate:
Numeric Keyboard
Is the
Numeric Keyboard
illumination
Ok
Replace
Keyboard FPC
Assembly
Yes
No
1: Disconnect: VBATT and DCIO/SEPI
Disconnect: Keyboard FPC Assembly from the PBA
2: Perform a visual Inspection of the
X2500 Board to Board Connector
Is the
X2500
BtB connector
Ok
Replace
X2500
NoYes
Replace
N4400
Numeric Keyboard illumination Problems
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Navigation Keys Problems - Navigation Keys Illumniation Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Keyboard FPC Assembly to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Key Test
Test the Navigation Keys by pressing all navigation keys on the
Keyboard FPC Assembly
Are all
Navigation Keys
Ok
Replace
Keyboard FPC
Assembly
Yes
No
No
Yes
Is the
Numeric Keyboard
Ok
Go to
Numeric Keyboard
Problems
1.8 Volt DC at
MP 10 (ST2413)
SL 5 Replace
N2010
SL 4 Escalate No Replace
X2500
Yes
Navigation Keys Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Keyboard FPC Assembly to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Init Screen Testing
Led and Backlight
Activate:
Navigation Keys LED
Is the
Navigation Keys
illumination
Ok
Replace
Keyboard FPC
Assembly
Yes
No
1: Disconnect: VBATT and DCIO/SEPI
Disconnect: Keyboard FPC Assembly from the PBA
2: Perform a visual Inspection of the
X2500 Board to Board Connector
Is the
X2500
BtB connector
Ok
Replace
X2500
NoYes
Replace
N4400
Navigation Keys illumination Problems
SEMC Troubleshooting Manual
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Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Flash LED Problems - Vibrator Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Init Screen Testing
Led and Backlight
Activate:
Flash LED
2.7V – 6V DC at
MP 53 (C4442)
No
Yes Replace
V2402
Quit TRS SW and
Disconnect: VBATT and DCIO/SEPI
Is L4402
= Max 1 Ohm Replace L4402
No
1: Connect: VBATT and DCIO/SEPI
2: Use Fault Trace SW and go to:
MMI
Init Screen Testing
Misc
Activate:
Main Camera Test
NOTE !
Ignore the ”...timeout when reading”message if it
appears in the Trace window
(The right corner of the Fault Trace SW).
Yes
1.8 Volt DC at
MP 46 (R4304) Replace N4302
No
SL 4 Replace
N4406
SL 5 Replace
N2010
Yes
Flash LED Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Vibrator Test
More than
2 Volt Pk-Pk Pulses
at MP 38 (C4201)
Replace
B2400
Yes
No
SL 5 Replace
N2000
SL 4 Escalate
Is any of
C4201 or C4446
Short circuit
SL 5 Replace
C4201 or C4446
SL 4 Escalate
YesNo
Vibrator Problems
SEMC Troubleshooting Manual
14 (57)

Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Camera Problems
TROUBLESHOOTING
- Camera Auto Focus and Shutter Problems
Yes No
START
Step 1:
Replace Camera 8 Mpixel CMOS and retest the Phone
If successful claim Camera 8 Mpixel CMOS if not go to step 2.
Step 2:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 3:
Use Fault Trace SW and go to:
MMI
Init Screen Testing
Misc
Activate:
Main Camera Test
NOTE !
Ignore the ”...timeout when reading”message if it appears
in the Trace window (The right corner of the Fault Trace SW).
SL 5 Replace
N2010
SL 4 Escalate
1.8 Volt DC at
MP 40 (R2210) and
MP 43 (R2212)
2.8 Volt DC at
MP 42 (ST2222)
Replace
N2206 No
Yes
2.8 Volt DC at
MP 41 (ST2224)
Replace
N2205 No 1.8 Volt DC at MP 44 (ST2223)
1.2 Volt DC at
MP 45 (L2213)
NoYes
Yes
Are
X4311, X4312, X4313
and X4314 connected
to GND
Yes
Replace
Faulty Component Yes
Close TRS SW
Disconnet: VBATT and DCIO/SEPI
No
Replace
N2205
Is L2212
= Max 1 Ohm Replace L2212
Yes
No
Replace
N2205
1: Close TRS SW
Disconnet: VBATT and DCIO/SEPI
2: Perform Visual Inspection of the
X4300 BtB Connector
No
Is the
X4300 BtB Connector
Ok
Replace
X4300 No
SL 4 Replace
N4302
SL 5 Replace
N2010
Yes
Camera Problems
START
Step 1:
Load ETS SW into the Phone
Use TRS Fixture
Connect: Keyboard FPC Assembly to the PBA
Connect: VBATT and DCIO/SEPI
Step 2:
Use Fault Trace SW and go to:
MMI
Misc
Init Screen Testing
Activate:
Key Test
Press Camera Auto Focus and Shutter key on the
Keyboard FPC Assembly
Is the
Camera Auto Focus
and Shutter key
Ok
Replace
Keyboard FPC
Assembly
YesNo
Go to
Navigation Keys
Problems
Camera Auto Focus and Shutter Problems
SEMC Troubleshooting Manual
15 (57)

Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Charging Problems
TROUBLESHOOTING
- USB Charging Problems
START
Step 1:
Perform the System Connector Protection Test
If successful go to step 2.
Step 2:
Disassemble the Phone and continue with the
Charging Problems TRS guide
Yes
Perform a visual Inspection of the
X2201 Battery Connector
Is the
X2201 Battery
Connector
OK
Replace
X2201
No
Yes
5 Volt DC at
MP 21 (C2440) Replace X2405
No
SL 4 Replace
V2202
SL 5 Replace
N2000
No
Is MP 54 (TP2202)
Short circuit to
GND
Replace
V2200
Yes
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Charging Problems
START
Perform the System Connector Protection Test
If successful continue with the
USB Charging Problems TRS guide
Yes
Use TRS Fixture
Connect: VBATT and USB from the PC
5 Volt at
MP 28 (ST2407) Replace X2405
No
Yes 5 Volt at
MP 27 (C2438) Replace N2421
No
SL 5 Replace
N2000 or N2010
SL 4 Escalate
USB Charging Problems
SEMC Troubleshooting Manual
16 (57)

Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING
TROUBLESHOOTING
Hands-Free (PHF) Detection Problems
Hands-Free (PHF) Aux Microphone Problems
START
Step 1:
Perform the System Connector Protection Test
If successful go to step 2.
Step 2:
Inspect and verify
X2405
NoYes Replace
X2405
Is the
X2405
Visual inspection
Ok
SL 4 Replace
N2422
SL 5 Replace
N2010 or N2000
Hands-Free (PHF) Detection Problems
START
NOTE !
Before starting this TRS guide, make sure that the Hands-Free (PHF)
Detection is working properly.
Step 1:
Perform the System Connector Protection Test
If successful go to step 2.
Step 2:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 3:
Use Fault Trace SW and go to:
Audio and FM Radio
Audio Loop Test
Audio Input: AUX1
Loop Mode: Analog
Audio Output: Loudspeaker
Apply Audio Loop
SL 5 Replace
N2000
SL 4 Escalate
No
Replace
N3101 Yes 2V - 2.2V DC at MP 26 (ST3157)
Hands-Free (PHF) Aux Microphone Problems
SEMC Troubleshooting Manual
17 (57)

Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING
Hands-Free (PHF) Aux Earphone Problems
TROUBLESHOOTING
- Microphone Problems
START
NOTE !
Before starting this TRS guide, make sure that Hands-Free (PHF)
Detection is working properly.
Step 1:
Perform the System Connector Protection Test
If successful go to step 2.
Step 2:
Load ETS SW into the Phone
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 3:
Use Fault Trace SW and go to:
Audio and FM Radio
Audio Tone
Activate:
INIT TONE TEST
Activate:
(PHF) Aux Earphone
More than
400mV Pk-Pk
1 kHz signal at MP 23
(L3151) and MP 24
(L3152)
SL 5 Replace
L3151 or L3152
SL 4 Escalate
No
Yes
NoYes Is L3151 and L3152
= Max 2 Ohm
Replace
N3101
SL 5 Replace
N2000 or N2010
SL 4 Escalate
Hands-Free (PHF) Aux Earphone Problems
START
Step 1:
Load ETS SW into the Phone
Step 2:
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Step 3:
Use Fault Trace SW
Use Fault Trace SW and go to:
Audio and FM Radio
Audio Loop Test
Audio Input: Mic1
Loop Mode: Analog
Audio Output: Loudspeaker
Apply Audio Loop
2.1V - 2.2V DC at
MP 7 (R3150) No SL 5 Replace
N2000
SL 4 Escalate
Yes
Replace
B3101
Quit TRS SW
Disconnect: VBATT and DCIO/SEPI
Is L3101
= Max 2.5 Ohm
SL 5 Replace
L3101
SL 4 Escalate
NoYes
Microphone Problems
SEMC Troubleshooting Manual
18 (57)

Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Earphone Problems
TROUBLESHOOTING
- Loudspeaker Problems
START
1: Load ETS SW into the Phone
2: Use TRS Fixture and Connect:
Slider FPC Assy, Display 3" TFT and PBA Top to the PBA
3: Connect: VBATT and DCIO/SEPI
4: Use Fault Trace SW and go to:
Audio and FM Radio
Audio Tone
Activate:
INIT TONE TEST
Activate:
Earphone Yes
Replace
Ear Speaker, PBA
Top, Slider FPC Assy
or Display 3" TFT
No
Yes
More than
400mV Pk-Pk
1 kHz signal at MP 59
(X101) and MP 60
(X102)
1: Close TRS SW
Disconnect: VBATT and DCIO/SEPI
2: Disconnect:
Slider FPC Assy, Display 3" TFT and PBA Top from the PBA
Are
L3105 and L3106
= Max 1 Ohm
SL 5 Replace
L3105 or L3106
SL 4 Escalate
No
1: Connect: VBATT and DCIO/SEPI
2: Use Fault Trace SW and go to:
Audio and FM Radio
Audio Tone
Activate:
INIT TONE TEST
Activate:
Earphone
Yes
More than
400mV Pk-Pk
1 kHz signal at MP 16
(L3105) and MP 15
(L3106)
SL 5 Replace
N2000
SL 4 Escalate
No
1: Quit TRS SW and Disconnect: VBATT and DCIO/SEPI
2: Perform a Visual Inspection of the
X4200 BtB Connector
Is the
X4200 BtB
Connector
Ok
No
Replace
PBA Top,
Slider FPC Assy or
Display 3" TFT
Replace
X4200
Yes
Earphone Problems
START
1: Load ETS SW into the Phone
2: Use TRS Fixture and Connect:
Keyboard FPC Assembly
3: Connect: VBATT and DCIO/SEPI
4: Use Fault Trace SW and go to:
Audio and FM Radio
Audio Tone
Activate:
INIT TONE TEST
Activate:
Loudspeaker Yes
Replace
Keyboard FPC
Assembly or Carrier
Inner Assembly
No
More than
900mV Pk-Pk
1 kHz signal at MP 58
(X3102) and MP 57
(X3103)
Yes
More than
400mV Pk-Pk
1 kHz signal at MP 17
(C3137)
SL 5 Replace
N2000
SL 4 Escalate
No
1.8 Volt DC at
MP 5 (R3153
AMP_CTRL)
SL 5 Replace
N2010
SL 4 Escalate
No
1: Close TRS SW
Disconnect: VBATT and DCIO/SEPI
2: Disconnect:
Keyboard FPC Assembly from the PBA
Yes
Are
L3107 and L3108
= Max 1 Ohm
SL 5 Replace
L3107 or L3108
SL 4 Escalate
No
Perform a Visual Inspection of the
X2500 BtB Connector
Yes
Is the
X2500 BtB
Connector
Ok
Replace
X2500
NoYes
Replace
N3100
Loudspeaker Problems
SEMC Troubleshooting Manual
19 (57)

Aino - U10
1235-5821 rev. 1
TROUBLESHOOTING Data Communication Problems
TROUBLESHOOTING
- FM Radio Problems
START
Step 1:
Perform the System Connector Protection Test
If successful go to step 2.
Step 2:
Use Phone with Signalling SW (SSW)
Use USB Cable connected to the PC and continue with step 3.
Step 3:
Power On the Phone and insert the USB cable into the System Connector
Does the
Phone Display
indicate Charging
Go to
USB Charging
Problems
No
Yes
Download ETS SW into the Phone
Is the
ETS SW Flash
Successful
SL 5 Replace
N2010
SL 4 Escalate
Yes
Disassemble the Phone and
Perform a visual Inspection of the
X2405 System Connector
No
Is the
X2405 System
Connector
Ok
Replace
X2405
No
SL 4 Replace
N2420
SL 5 Replace
N2010
Yes
Data Communication Problems
START
Perform the System Connector Protection Test
If successful continue with the
FM Radio Problems TRS guide
Is the
Hands-Free (PHF)
Connection
Ok
Go to
Hands-Free (PHF)
Detection Problems
No
Is the
Hands-Free (PHF)
Aux Earphone
Ok
Yes
Go to
Hands-Free (PHF)
Aux Earphone
Problems
No
Yes
SL 4 Replace
N1300
SL 5 Replace
N2000 or N2010
Disassemble the Phone and
Perform a Visual Inspection of the
X2405 System Connector
Yes
Is the
X2405
System Connector
Ok
Replace
X2405
No
FM Radio Problems
SEMC Troubleshooting Manual
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