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 notifi ed 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 confi dential and should be treated as confi dential 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.DateChanges / Comments
12/14/2008Initital revision.
ABOUT 2
Contents 2
TROUBLESHOOTING 3
Equipment List 3
On/Off Problems 8
Flash Problems 8
Dead Phone Problems 9
Display Problems 9
Display Illumination Problems 10
Key Problems 10
LED Problems 11
Main Camera Problems 11
VGA Camera Problems 12
Camera Door Problems 12
Vibrator Problems 13
Charging Problems 13
USB/VBUS Charging Problems 14
SIM Problems 14
Memory Stick Problems 15
Audio Internal Problems 15
Audio External Problems 16
FM Radio Problems 16
Bluetooth Problems 17
GSM Network Problems 18
WCDMA Network Problems 18
Xenon Flash Problems 19
System Connector Protection Test 20
Current Comsumption Test 20
Battery & Current Calibration Test 22
Backup Capacitor Test 22
Test Charging 23
ASIC Revision Test 23
Reference Measurement Points 24
TEST POINTS 25
Front Side 25
Back Side 26
SIM & Memory Card Holder 27
Sofi a Top Schematic 28
Application & System Performance Top 29
System Top 30
System Control - Clocks & Resets 31
System Memories 32
Power Top 33
Power Regulators & Charging 34
Power Camera 35
Power ASICs 36
Power Memories 37
Connectivity Top 38
Connectivity ADC & I2C 39
Connectivity Cards 40
Connectivity Connectivity 41
Connectivity Keypad 42
Connectivity Camera Door & Flash 43
Access Top 44
Access - GSM & UMTS 45
Access - Bluetooth 46
Imaging Top 47
Imaging Display 48
Imaging Camera 49
Imaging LMU 50
Audio Top 51
Audio Analog 52
Audio Digital 53
FM Radio 54
Test 55
Thor RF Module Top 56
Thor RF Module GSM/EDGE Tx + FEM 57
Thor RF Module GSM/EDGE Rx + Synth 58
COMPONENT OVERVIEW 59
Front Side B - X 59
Back Side C - E 60
Back Side L - Z 61
FUNCTIONAL OVERVIEW 62
Technical Description 62
Block Diagram Access 71
Block Diagram Application 72
Power Distribution & Clocking Concept 73
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 –
K850 – Equipment List.
TRS Fixture Kit
Location: CSPN-Repair Instructions-Electrical-K850-Equipment List
Dummy Battery
Location: CSPN-Repair Instructions-Electrical-K850-Equipment List
Part number: 1200-0725
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 not exceed 1m. The cable must have a capacity for at least 16A.
Digital Multimeter (DMM)
Fluke 83 or similar
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
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 Connectors
Adaptor 33 N-BNC-50-1
Adaptor to Signal Generator RF Output
Se Picture 1
Location: -
Picture 1
TROUBLESHOOTING
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
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: LTN 214 1484
Se Picture 2.
Picture 2
RF Test Cable Flexible
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: RPM 119 885
Se Picture 4.
Picture 4
SEPI Interface Cable
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: KRY 101 1119/1
Se Picture 5.
– A1
TROUBLESHOOTING
Cables
USB Computer Cable
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Se Picture 3.
Picture 3
DSU-60/USB Cable
Location: CSPN-Repair Instructions-Level: Mechanical-Tool Catalogue
Part number: KRY 101 1413
Picture 5
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:
1203-2528 rev. 1
4 (101)
TROUBLESHOOTING
Equipment List
SEMC Troubleshooting Manual
K850
STEP 1:
Take the CST-75 battery charger and cut of the charger according to Picture 6.
Picture 6
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 7.
Picture 7
STEP 4:
Connect DCIO and SEPI Interface Cable – A1 cables according to Picture 9.
Picture 9
TROUBLESHOOTING
The setup in Picture 10 is WRONG!
Picture 10
STEP 3:
Trim the flex protection material from inside of the charger plug according to Picture 8.
Picture 8
Power Supply Channel 2 DCIO/SEPI Cable Connection Setups
Correct DCIO/SEPI Cable setup when TRS Fixture is used.
Picture 11
Note: Example of DCIO/SEPI and K750 TRS Fixture Setup.
1203-2528 rev. 1
5 (101)
TROUBLESHOOTING
Equipment List
SEMC Troubleshooting Manual
K850
Correct DCIO/SEPI Cable setup without the TRS Fixture.
Picture 12
Picture 13
STEP 2:
Cut the Red lab plug according to Picture 15
Picture 15
TROUBLESHOOTING
STEP 3:
Use any Hands free (PHF) Cable and cut according to Picture 16
Picture 16
Customized FM Radio Cable
STEP 1:
Use Cable according to Picture 14
Picture 14
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/
Part number: 46-310-40 (Note: This is ELFA part number)
or other supplier.
Note: Minimum Cable length 40 cm.
STEP 4:
Use only wire connected to Pin2 and cut all rest wires according to Picture 17.
Use digital multimeter instrument (DMM) and perform diode measurement to select wire
connected to Pin2 at hands free system connector plug.
Picture 17
1203-2528 rev. 1
6 (101)
TROUBLESHOOTING
Equipment List
SEMC Troubleshooting Manual
K850
STEP 5:
Connect by soldering cable from Picture 15 and cable from Picture 17 according to Picture 18.
Picture 18
Test Cards
Dummy SIM
Customize SIM Card according to Picture 19.
Picture 19
Test SIM GSM/UMTS
One Test SIM GSM/UMTS is needed to perform Current Consumption Test, se Picture 21.
Location: To buy a Test SIM GSM/UMTS, please contact your supplier of test equipment.
Picture 21
TROUBLESHOOTING
Sony Memory Stick Micro Card M2
Any functional Memory Stick Micro M2 Card, se Picture 22
Picture 22
Local SIM
Any functional Local SIM Card, se Picture 20
Picture 20
1203-2528 rev. 1
7 (101)
TROUBLESHOOTING On/Off Problems
/ Flash Problems
SEMC Troubleshooting Manual
K850
START
Connect:
Dummy Battery connected
to VBATT
No
Is the
phone consuming
any current when
powering on the
phone
Yes
On/Off problems
Is the phone
consuming more than
1mA when the phone
is powered off
No
Is it possible to
power on the phone
Connect a chargerNo
Yes
Yes
Is it possible to power
off the phone
Is the phones
behavior as normal
Optimized
charging
No
Yes
No
Yes
Go to
Dead phone
Problems part 1
Go to
Current
Consumption Test
After this go to
Charging Test.
Go to
Key problems
No
Power up the phone
Connect USB Cable
From PC
The phone
indicate charging
on display
No
Go to
USB/VBUS Charging
problems
No
Yes
Flash problems
Flash process
Start-up
When using
EMMA
Yes
Download
ITP SW
By using EMMA
Passed
5 Volt DC at
MP 123 (C2414)
Yes
3.3 Volt DC
Pulses at
MP 120 (C2476)
No
Yes
No
1.8 Volt DC
Pulses at
MP 23 (R2427)
START
Step 1:
Perform System
Connector Protection Test.
Try to Flash the phone by
No
Step 2:
Phone with Normal SW
Use TRS Fixture
Connect:
Display and Keypad
Connect: VBATT
using EMMA III SW
SL 5 Replace
D2010
SL 4 Scrap
SL 5 Replace
R2484
SL 4 Scrap
SL 5 Replace
D2000
SL 4 Scrap
TROUBLESHOOTING
Is the current
consumption between
10mA and 70mA
Yes
Flash
the phone with
correct CDA
software
Flash
the phone with
ITP software
successful
No
Yes
CDA Software
Flash
Successful
Yes
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
Go to
Dead Phone
Problems part 1
Press
2 and 5
Connect USB
Run Pre-config 1 and 2
Run DPY/Z
Successful
Flash
No
Flash process
started
Yes
Replace
D2404
No
Go to
System Connector
Protection Test.
Disconnect the
phone from
TRS Fixture
Yes
Yes
1.8 Volt DC
Pulses at
MP 125 (C2474)
Yes
No
After this go to
Flash problems
Max 2 Ohm between
MP 119 (X2400_Pin11)
and MP 117
(Z2450 pin 3)
Yes
Max 2 Ohm between
MP 118 (X2400_Pin10)
and MP 116
(Z2450 pin 4)
NoYes
Problem
solved
Yes
No
No
Max 0.5 Ohm between
MP 119 (X2400_Pin11)
and MP 121
(Z2450 pin 2)
Max 0.5 Ohm
between
MP 118 (X2400_Pin10)
and MP 122
(Z2450 pin 1)
No
Yes
No
Yes
Replace
System Connector
X2400
SL 5 Replace
Z2450
SL 4 Scrap
Replace
System Connector
X2400
SL 5 Replace
Z2450
SL 4 Scrap
No
Go to
Flash problems
No
Problem
solved
Yes
Yes
Claim for a
SW Upgrade
Replace
D2404
Problem
solved
No
Yes
Claim
D2404
SL 5 Replace
D2000
SL 4 Scrap
1203-2528 rev. 1
8 (101)
TROUBLESHOOTING Dead Phone Problems
SEMC Troubleshooting Manual
K850
START
Step 1:
Try to recover the phone
using EMMA III SW
Press key 2 and 5
Connect USB Cable
Run pre-config 1 or 2
Run DPY/Z
Step 2:
Use TRS Fixture
Connect VBATT
NOTE:
Do NOT use
DCIO/SEPI Cable!
Replace
N1002, N1200 or
N1210
SL 5 Remove
N2000
SL 4 Scrap
Using more than
1 mA
current
SL 5 Replace
N2000
SL 4 Scrap
Replace
N1200
SL 5 Replace
D2000
SL 4 Scrap
SL 5 Replace
D2010
SL4 Scrap
Go to
Flash Problems
SL 4 Replace
N2400 or V2405
SL 5 Replace
C2400, C2430,
C4213, C3135 or
C3136
SL 5 Replace
Faulty Component
SL 4 Scrap
Yes
Yes
No
No
Yes
Yes
SL 5 Replace
N2000
SL 4 Scrap
Yes
S2400
not pressed
Using more than
1 mA
current
Yes
Try to trace the
faulty component
with freezing spray
N1002
(inside N1200)
N1200, N1210
getting hot
No
SL 5 Replace
N2000
SL 4 Scrap
Try to trace the
faulty component
with freezing spray
MP 149 (R2100)
Yes
Flash process
No
V2405, N2400
C2400, C2430,C4213,
C3135,C3136
Short circuit
No
C2326, C2327,
C2328, C2329, C2330,
C2353, D2000,C2352
Dead Phone problems part 1
No
DCIO/SEPI Cable
MP 6 (B2101 Pin7)
Between Power
No
SL 5 Replace
R2200
SL 4 Scrap
No
26 MHz
MCLK at
successful
No
No
Short circuit
Supply GND and
MP 9 (ST2208 VDDE)
MP 12 (ST2215
Yes
by downloading
Keep S2400
pressed or
connect
32 kHz
RTCCLK at
Yes
32 kHz
RTCCLK at
MP 21 (R2125)
0 Volt
PBA GND
Yes
1.8V DC at
2.8V DC at
VccA)
Try to recover
the phone
ITP SW
AUDIO26
Voltage
Ok
Yes
VANA25
Voltage
Ok
Replace
B2101
No
No
Yes
No
2.6V MP 17 (ST2204 AUDIO26)
2.5V MP 11 (ST2203 VANA25)
2.7V MP 14 (ST2212 VBT27)
2.7V MP 34 (ST2213 VDIG)
2.6V MP 36 (ST2214 VBEAR26)
1.8V MP 158 (ST2217 VCORE18)
1.2V MP 56 (ST2206 VCORE12)
Yes
Yes
YesNo
2.2 Volt at
MP 7 (C2218 VDD_LP)
SL 5 Replace
N2000
SL 4 Scrap
26 MHz
MCLK at
MP 85 (C2116)
Check the following voltages:
All voltages
Current
consumption more
than 50mA
SL 5 Replace
N2000
SL 4 Scrap
Dead Phone
problems part 2
Yes
No
Yes
Ok
No
No
Go to
Dead Phone
problems
Part 2
VDIG
Voltage
Ok
Yes
VBEAR26
Voltage
Ok
Yes
VCORE18
Voltage
Ok
Yes
VCORE12
Voltage
Ok
Yes
Try to Recover the
Phone by
downloading
ITP SW
SL 5 Check
C2301 to C2305,
C2307,C2308,C2311,
C2313 to C2319
C2322,C2324,C2325
D2000
SL 5 replace
Faulty component
and L2200
Yes
Yes
No
No
No
VBT27
Voltage
Ok
D2405,C2402
D2460,C2525,C2524,
N2525,C1407,N1400
Short circuit
C3152
Short circuit
D2000,
D2010,V2231,
C2342 to C2351
Short circuit
1.8 Volt DC at
MP 157 (N2202 Pin1)
No
1.2 Volt DC at
MP 24 (V2207)
Yes
MP 56 (ST2206)
Short circuit
To PBA GND
Dead Phone problems part 2
No
C2470
No
No
No
N1400, C1409
Short circuit
Yes
No
Yes
3.8 Volt DC at
MP 161 (N2202 Pin6)
3.8 Volt DC at
MP 57 (L2201)
C2243
Short circuit
No
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
No
SL 4 Replace
SL 5 Replace
SL 5 Replace
SL 4 Scrap
SL 4 Replace
D2460, N2525 or
SL 5 Replace
C2470, D2405, C2402,
C2525, C2524 or C1407
SL 5 Replace
SL 4 Scrap
SL 5 Replace
SL 4 Scrap
SL 5 Replace
Faulty component
SL 4 Scrap
SL 5 Replace
No
SL 4 Scrap
SL 5 Replace
C2243 and L2203
SL 4 Scrap
SL 5 Replace
R2207, C2239
and N2202
SL 4 Scrap
SL 5 Replace
SL 4 Scrap
SL 5 Replace
SL 4 Scrap
N1400
C1409
N2000
TROUBLESHOOTING
N1400
C3152
N2000
L2203
Replace
N2202
L2201
N2000
Replace
L2200
SL 4 Scrap
1203-2528 rev. 1
9 (101)
TROUBLESHOOTING Display Problems
/ Display Illumination Problems
SEMC Troubleshooting Manual
K850
Go to Display
illumination
problems
No
Display problems
Display Backlight
Ok
Yes
1.8 Volt DC
at
MP 5 (ST4200
VDDE18)
Yes
2.6 Volt DC
at
MP 4 (ST4201
VAUDIO26)
Yes
Use Fault Trace SW
MMI
Display pattern
Activate
Tri color pattern
No
SL 5 Replace
No
SL 4 Scrap
N2000
START
Step 1:
Use TRS Fixture and connect the display
and keypad. Connect VBATT.
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 and connect the display
Connect: VBATT and DCIO/SEPI
Continue with the
Display problems TRS guide
SL 5 Replace
N2000
SL 4 Scrap
No
1.8 Volt
Pulses at
MP 8 (R2206 OPTO_EN)
shortly after phone
Power On
Yes
3.0 Volt
Pulses at
MP 3 (TP2203 VOPTO30)
shortly after phone
Power On
Yes
Yes
No
Replace
N2201
Display illumination problems
Use Fault Trace SW
MMI
Misc
Activate
Display Backlight
Display Backlights
Ok
No
3.8 Volt DC at
MP 26 (TP4200)
Yes
at MP 49 (R4215) shortly
after Display Backlights
after Display Backlights
When Display Backlight
Use TRS Fixture and connect the display
and the keypad. Connect VBATT.
If the display is working properly at the
Use TRS Fixture and connect the display
Display illumination problems TRS guide
3.8V
Pk-Pk Pulses
is set
No
15V Pk-Pk
Pulses at
MP 26 (TP4200) shortly
Is set
Yes
0 Volt DC
At MP 25 (TP4201)
is activated
START
Step 1:
fixture then replace the display
If not then continue with Step 2.
Load ITP SW into the phone
Connect: VBATT and DCIO/SEPI
Yes
Step 2:
Continue with the
Replace
No
Yes
SL 5 Replace
SL 4 Scrap
Replace
X4200 or Display
V4200
N2000
TROUBLESHOOTING
SL 5 Replace
D2000
SL 4 Scrap
Replace
X4200
NoYes
Display
Ok
Claim Component
X4200
0.8 to 2.5
Volt Pulses at
MP 52 (N4200 Pin6)
shortly after phone
Power On
Yes
Flash the Phone with
EMMA
SUCR SW
No
Replace
N4200
No
3.8 Volt DC at
MP 51 (V4201
Anode)
No
No
Yes
SL 5 Replace
V4205 or N2000
SL 4 Scrap
Replace
V4201
SL 5 Replace
L4201
SL 4 Scrap
1203-2528 rev. 1
10 (101)
TROUBLESHOOTING Key Problems
/ LED Problems
SEMC Troubleshooting Manual
K850
Replace
V2402
Yes
Problem with
Phone Off
No
Problem with
Volume Down
key
No
Problem with
Volume Up
key
Perform Diode
Measurement
No
Problem with
Yes
More than
2.0 Volt DC between
MP 134 (S2402 A) and
MP 135 (S2402) C
No
Short circuit
between
MP 135 (S2402 C) and
MP PBA GND
No
Phone On
Yes
Volume Down key
MP 134 (S2402 A) and
Yes
Key problems
START
Use TRS Fixture and connect Display and
Perform Keyboard Test in Service Tests
If All Keys working properly at the
TRS Fixture then replace Keypad. If not then
disconnect VBATT and continue with the
Yes
Press the
S2402
0 Volt DC
between
MP 135 (S2402 C)
Yes
SL 5 Replace
V2478
SL 4 Scrap
Remove
S2402
Step 1:
Keypad. Connect: VBATT
Key problems TRS guide
Press the On/Off
MP PBA GND. More than
MP 127 (S2400 A)
No
2.0 Volt DC between
MP 134 (S2402 A) and
MP 135 (S2402 C)
key S2400
Yes
Connect the
black probe to
2.0 Volt DC at
No
Remove
S2400
Replace
S2402
SL 5 Replace
D2000
SL 4 Scrap
More than
MP 127 (S2400 A)
SL 5 Replace
2.0 Volt DC at
MP 127 (S2400 A)
No
Replace
S2400
No
0 Volt DC at
Yes
N2000
SL 4 Scrap
No
More than
Yes
Replace
S2400
SL 5 Replace
D2000
SL 4 Scrap
SL 5 Replace
N2000
SL 4 Scrap
Replace
V2428 Red LED
Replace
X2410
Replace
N4101
SL 5 Replace
N2000
SL 4 Scrap
Claim Component
X2410
Replace
N4101
No
Yes
No
MP 128 (C2427)
Yes
MP 18 (TP4112)
No
Yes
Yes
More than
1.8 Volt DC at
4.5 Volt DC
at
Replace
X2410
Keypad LEDs
Ok
LED problems
Yes
Yes
On Red LED
problems:
Use Fault Trace SW
MMI
LED and Backlight
Activate:
Red LED
Problem with all
Keypad LED
rows
No
Problem with any
of the Keypad LED
rows
No
Problem with
Camera Keypad
LED
Yes
Load ITP SW into the phone.
START
Use TRS Fixture
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
On Keypad LED
problems:
Connect Keypad
Use Fault trace SW
MMI
LED and Backlight
Activate:
Keypad Backlight
If Keypad LED works
properly at the
TRS Fixture then replace
Keypad
No
TROUBLESHOOTING
No
Problem
With all other
keys
Yes
Replace
X2410
Problem
solved
Yes
Claim
X2410
No
Yes
More than
2.0 Volt DC between
MP 132 (S2403 A) and
MP 131 (S2403 C)
Yes
Press the
Volume Up key
S2403
0 Volt DC
between
MP 132 (S2403 A) and
MP 131 (S2403 C)
Yes
SL 5 Replace
D2000
SL 4 Scrap
No
No
Short circuit
between
MP 131 (S2403 C) and
MP PBA GND
No
Remove
S2403
More than
2.0 Volt DC between
MP 132 (S2403 A) and
MP 131 (S2403 C)
Yes
Replace
S2403
Yes
Yes
No
Replace
S2402
SL 5 Replace
V2477
SL 4 Scrap
SL 5 Replace
D2000
SL 4 Scrap
Replace
X2410
Replace
X2511
Replace
N4101
SL 5 Replace
N2000
SL 4 Scrap
Replace
X2511
Yes
No
No
More than
0.8 Volt DC at
MP 162 (R4114)
MP 164 (R4115)
MP 163 (R4116)
1.8 Volt DC
at
MP 20 (TP4106
AF_LED)
Yes
No
Connect Keyflex to
the PBA
Use Fault trace SW
MMI
LED and Backlight
Activate:
Camera Keypad LED
Connect Single
Flash Assembly to
PBA
Use Fault trace SW
MMI
LED and Backlight
Activate:
Autofocus LED
More than
1.2 Volt DC
at MP 30 (R2544
LED_BACK)
Yes
Problem with
Autofocus LED
No
Camera Light Ring
problems:
Connect Single
Flash Assembly to
PBA
Use Fault trace SW
MMI
LED and Backlight
Activate:
Camera Light Ring
1203-2528 rev. 1
11 (101)
TROUBLESHOOTING Main Camera Problems
/ VGA Camera Problems
SEMC Troubleshooting Manual
K850
Fault Trace SW
MMI
Misc
Activate:
Main Camera Test
1.8 Volt DC at
MP 76 (R2280
CAM_LDO_EN)
Yes
2.8 Volt DC at
MP 32 (TP2204
VCAMAF)
Yes
Main Camera problems
No
No
Replace
D2420
Replace
N2206
START
Load ITP SW
into the phone.
Use TRS Fixture and
Connect: Display and Main Camera Module
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
If the Main camera module is not connected
or not working properly the Fault Trace SW
will show an error message in the Trace
window.
VGA Camera problems
Fault trace SW
MMI
Misc
Activate:
VGA Camera Test
1.8 Volt DC at
MP 76 (R2280
CAM_LDO_EN)
Yes
No
START
Load ITP SW
into the phone.
Use TRS Fixture and
connect Display and VGA Camera
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW
If the VGA camera is not connected
or not working properly the Fault
Trace SW will show an error
message in the Trace window.
Replace
D2420
TROUBLESHOOTING
1.8 Volt DC at
MP 27 (TP2206
VCAMIO)
Yes
1.2 Volt DC at
MP 28 (TP2207
VCAML)
Yes
2.8 Volt DC at
MP 82 (ST2275
VCAMSA)
Yes
1.8 Volt DC at
MP 54 (TP2208
VCAMSD)
No
No
No
No
Replace
N2203
Replace
N2208
Fault Trace SW
Logic
GPIO Manager
Application
GPIO_11 Read
Yes
Is
Result GPIO_11
= High
1.8 Volt DC at
MP 27 (TP2206
VCAMIO)
Yes
2.8 Volt DC at
MP 82 (ST2275
VCAMSA)
Yes
13MHz at
MP 77 (R4301)
Yes
Replace
X4300
No
No
No
Replace
N2203
Replace
N2208
SL 5 Replace
D2000
SL 4 Scrap
Yes
26MHz at
MP 77 (R4301)
No
Yes
Replace
X4301
SL 5 Replace
D2000
SL 4 Scrap
No
Replace
D2420
1203-2528 rev. 1
12 (101)
TROUBLESHOOTING Camera Door Problems
/ Vibrator Problems
SEMC Troubleshooting Manual
K850
Flash the Phone with
EMMA
SUCR SW
Disassemble the
phone
Use TRS Fixture
Fault trace SW
MMI
Misc
Activate:
Camera Door Test
Yes
Yes
Camera Door problems
Camera Door Test
Open/Close
Ok
No
Camera Door
Open position
Ok
Replace
D2420
No
Fault trace SW
MMI
Misc
Activate:
Camera Door Test
No
shortly after camera door
Disassemble the
Use TRS Fixture
1.8V,
225ms Pulses
test activation at
MP 91 (R2500)
phone
No
START
Load ITP SW
into the phone.
Insert the
Dummy Battery
Connect: VBATT and
DCIO/SEPI
Use Fault Trace SW
Fault trace SW
MMI
Misc
Activate:
Camera Door Test
3V, 225ms
Pulses shortly
after camera door test
activation at
MP 59 (TP2500)
SL 5 Replace
N2000
SL 4 Scrap
No
Is any of
C4206 or C4207
Short circuit
Vibrator problems
START
Load ITP SW into the phone
Use TRS Fixture.
Connect: VBATT and DCIO/SEPI
Use Fault Trace SW and go to:
If Vibrator is working properly at the
TRS Fixture then replace Vibrator if not
Continue with the Vibrator problems TRS guide
No
MMI-Misc
Activate:
Vibrator Test
2.8 Volt Pk-Pk
Pulses at
MP 141 (C4206
VIBR_OUT)
TROUBLESHOOTING
3V, 250ms
Pulses shortly
after camera door test
activation at MP 58
(TP2501)
Yes
Replace
N2500
No
Yes
Replace
V2500
Replace
D2420
Replace
X2511
No
No
Yes
3V,
225ms
Pulses shortly
after camera door test
activation at MP 93
(V2505 Pin 4)
Yes
3V, 225ms
Pulses shortly
after camera door test
activation at MP 55
(TP2502)
Yes
Yes
SL 5 Replace
C4206 or C4207
SL 4 Scrap
Yes
2.8 Volt Pk-Pk
Pulses at
MP 136 (X2506)
Yes
Connection
between
MP PBA GND and
MP 137 (X2507)
Ok
Yes
No
No
SL 5 Replace
L4202
SL 4 Scrap
SL 5 Replace
L4203
SL 4 Scrap
Clean Pad X2506
Clean Pad X2507
1203-2528 rev. 1
13 (101)
TROUBLESHOOTING Charging Problems
/ USB/ V BUS Cha rg in g Proble ms
SEMC Troubleshooting Manual
K850
Use TRS Fixture and
Fault Trace SW
Connect:
VBATT and
DCIO/SEPI
Start Battery
Calibration Test
3.2V
and 4.1V DC
at MP 31 (TP2200)
during Battery
Calibration
No
Replace
X2200
SL 5 Replace
R2200
SL 4 Scrap
No
Yes
Charging problems
Battery Calibration.
Passed
Yes
Current Calibration
Passed
No
Use TRS Fixture and
Fault Trace SW
Connect:
VBATT and
DCIO/SEPI
Yes
Is
MP 29 (TP2202)
Short circuit
To GND
Perform System Connector Protection Test
START
Load ITP SW into the phone
Connect: Dummy Battery
Connect:VBATT and DCIO/SEPI
Use Fault Trace SW:
Logic, Phone Power
Battery and Current Calibration
It is very important to follow
instrument settings instructions
when performing the Battery and Current
No
Perform
Calibration Test.
SL 5 Replace
Yes
Flash with EMMA
Charging Test
System Connector
N2000
SL 4 Scrap
SUCR SW
Go to
Replace
X2400
No
Connect
DSU-60/ USB cable
from PC to
the phone
5 Volt DC at
MP 44 (ST2201)
No
5 Volt DC at
MP 108 (R2470/1)
USB/VBUS Charging problems
SL 5 Replace
Yes
No
N2000
SL 4 Scrap
5 Volt DC at
MP 107 (R2470/2)
START
Perform System Connector Protection Test
If step 1 is Ok then continue with step 2.
Use Phone with Normal SW
No
Step 1:
Step 2:
Use TRS Fixture
Connect: VBATT
Replace
System Connector
X2400
TROUBLESHOOTING
No
Connection
between
PBA GND to Power
supply GND
Ok
Yes
SL 5 Replace
N2000
SL 4 Scrap
Yes
5 Volt DC at
MP 40 (C2201
DCIO)
Yes
Start
Current Calibration
(C.C.)
Phone
Consuming
more than 10mA
DCIO Current
(During C.C.)
R2201
0.1 Ohm
Phone
consuming more
No
MP 47
No
YesYes
(C2241 DCIO_INT)
Higher than
3,8 Volt DC
Yes
MP 41 (R2201)
CHSENSEP Higher
than 3,8 Volt DC
(During C.C.)
No
than 10mA
Charger (DCIO)
Current
Yes
SL 5 Replace
C2423 and C2424
SL 4 Replace
V2421
SL 5 Replace
N2000
SL 4 Scrap
Yes
Replace
N2402
Yes
SL 5 Replace
R2470
SL 4 Scrap
SL 5 Replace
R2201
SL 4 Scrap
No
Replace
V2202
SL 5 Replace
N2000
SL 4 Scrap
Yes
(V2202 Pin2)
CHREG Lower than
MP 47 (C2241)
(During C.C.)
No
No
MP 39
1203-2528 rev. 1
14 (101)
TROUBLESHOOTING SIM Problems
/ Memory Stick Problems
SEMC Troubleshooting Manual
K850
Replace combo
reader and
Flash the Phone
with EMMA
SUCR SW
Remove Test SIM
and Insert
Dummy SIM
Restart the Phone
Use:
Fault Trace SW
Activate:
SIMVCC
SIMVCC on
Activate:
SIMRST
Yes
Sim Com Test
Passed
No
1.8 Volt DC
At MP SIM1
(Fixture Sim reader
Pin 1)
Yes
SL 5 Replace
C2406 or C2411
SL 4 Scrap
SIM problems
No
Yes
Fault trace SW
Logic
SIM Card control
Activate:
SIM Com Test
1.8 Volt DC at
MP 50 (TP2400)
No
C2406
or C2411
Short circuit
Load ITP SW into the phone.
START
Use TRS Fixture.
Connect: Fixture Combo
reader to the PBA and
Insert Test SIM
Connect:
VBATT and DCIO/SEPI
Use Fault Trace SW
Yes
No
Replace
X2409
SL 4 Replace
X2409
If still faulty
SL 5 Replace
N2000
SL 4 Scrap
Fault trace SW
Logic
SIM Card control
Activate:
Memory Stick Test
Memory Stick Test
Passed
Yes
Replace Combo
Reader and
Flash the Phone
with
EMMA
SUCR SW
Memory Stick problems
Load ITP SW
into the phone.
Use TRS Fixture
Fixture Combo reader to PBA
Connect : VBATT and DCIO/SEPI
No
Connect:
Insert Memory Card
Use Fault Trace SW
0 Volt DC at
MP 105 (R2406
MSDETECT)
Yes
1.8 Volt DC at
MP 94 (R24102
CMDDIR
D2410 Pin 4)
Yes
No
No
No
Restart the phone
and measure the
pulses after 5 sec
Is
X2409
damaged
Yes
Replace
X2409
Disconnect Combo
reader and restart
the phone, measure
the pulses after
5 sec
START
SL 5 Replace
D2410
SL 4 Scrap
Yes
1.8 Volt at
MP 95 (R24102
MCCMDDIR
D2410 Pin 3)
No
TROUBLESHOOTING
1.8 Volt DC at
MP SIM2 (Fixture SIM
reader Pin 2)
Yes
SIMVCC on
SIMRST on
Activate:
SIMCLK
1.0 Volt DC at
MP SIM3 (Fixture Sim
reader Pin 3)
Yes
SIMVCC on
SIMRST on
SIMCLK on
Activate:
SIM DATA
No
No
1.8 Volt DC at
MP 69 (TP2401)
Yes
Replace
X2409
Yes
1.0 Volt DC at
MP 65 (TP2402)
1.8 Volt DC at
MP SIM7 (Fixture SIM
reader Pin 7)
Yes
No
No
No
C2410
Short circuit
No
SL 5 Replace
N2000
SL 4 Scrap
C2408
Short circuit
1.8 Volt DC at
MP 70 (TP2403)
No
No
Yes
Yes
Yes
SL 5 Replace
C2410
SL 4 Scrap
Sl 5 Replace
C2408
SL 4 Scrap
SL 5 Replace
N2000
SL 4 Scrap
Replace
X2409
SL 5 Replace
N2000
SL 4 Scrap
Disconnect Combo
reader and restart
the phone, measure
the pulses after
5 sec
Restart the phone
after each
measurement.
Measure pulses
after 5 sec.
1.8 V to 2.8V
at MP 63 (R24106)
to MP 64 (R24110)
No
Restart the phone
Measure pulses
after 5 sec.
Yes
No
Yes
Yes
2.8 Volt at
MP 66 (R24105
MC_CLK)
Replace
X2409
Yes
1.8 V to 2.8V
at MP 103 (R2490)
1.8 Volt at
MP 96 (SP2408
MCDATDIR)
repair instructions
No
At MP 98 (R2444) to
Cut the fence
according to the
for D2460. Restart
the phone and
measure pulses
after 5 sec.
Restart the phone
after each
measurement.
Measure pulses
after 5 sec.
From High to
Low pulses Signal
MP 99 (R2448)
No
No
Yes
SL 5 Replace
D2000
SL 4 Scrap
No
1.8 Volt at
MP 100 (R2496
MCCLK)
Yes
Replace
D2460
Replace
D2460
SL 5 Replace
D2000
SL 4 Scrap
Replace
X2409
No
Connection
Between MP PBA GND
and MP SIM5 (Fixture
Sim reader Pin 5)
Ok
Yes
10 Kohm
Between MP 50
(TP2400) and MP 70
(TP2403)
Yes
No
SL 5 Replace
R2419
SL 4 Scrap
SL 5 Replace
N2000
SL 4 Scrap
Restart the phone .
Measure pulses
after 5 sec.
1.8 V to 2.8V
at MP 104 (R24101)
Yes
No
SL 5 Replace
N2000
SL 4 Scrap
Replace
D2460
1203-2528 rev. 1
15 (101)
TROUBLESHOOTING Audio Internal Problems
/ Audio Exter n al Problem s
SEMC Troubleshooting Manual
K850
0 Volt DC
at MP 160
(V2405_ Pin 6)
Yes
2.6 Volt DC
at MP 124 (ST2441)
No
Replace
N2400
SL 5 Replace
L3108 and L3109
SL 4 Scrap
Yes
Yes
Yes
No
Audio Internal problems
Go to
Audio External
Problems
Replace
V2405
Fault Trace SW
Audio and FM Radio
Audio Loop test
Audio Input: Mic1
Loop Mode: Analog
Audio Output:
Loudspeaker
Apply Audio Loop
Whistle into the
PBA Mic
More than
100mV AC Pk-Pk
at MP 74 (X3102) and
MP 75 (X3103)
No
Yes
SL 5 Replace
L3103,L3104,
L3110,L3111
SL 4 Scrap
No
More than
100mV AC Pk-Pk
at MP 1 (X3100) and
MP 2 (X3101)
Yes
More than
100mV AC Pk-Pk
at MP 43 (L3103 BEARP)
and MP 45 (L3104
BEARN)
No
More than
100mV AC Pk-Pk at
MP 37 (ST3100)
No
2.2 Volt DC
at MP 106 (R3109
CCO_INTMIC)
No
START
System Connector Protection Test
Use TRS Fixture. Connect Display
perform Audio Service Tests. If all
Audio Service Tests work properly at
the fixture then replace Loudspeaker
and continue with the Audio internal
Step 1: Perform
Step 2:
and Keypad. Connect VBATT and
or Earphone
Load ITP SW into the phone.
Connect VBATT and DCIO/SEPI
Yes
Yes
If not then
Use TRS Fixture.
Use Fault Trace SW
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
Whistle into the
PBA Mic
SL 5 Replace
N2000
SL 4 Scrap
Replace
Electret Mic or
X3105
Disconnect
DCIO/ SEPI cabel
and Insert PHF set
Whistle into the AUX
mic
Can you
hear at AUX
earphone when you
whistle in to the
AUX mic
No
More than
80mV AC Pk-Pk
at MP 112 (L2403 SPL) and
MP 113 (L2404 SPR) When
whistle in to the
AUX mic
No
More than
20mV AC Pk-Pk at
MP 109 (R3130 MICP_int)
and MP 89 (R3131
MICN_int)
No
Audio External problems
Fault trace SW
Audio and FM Radio
Audio Loop test
Audio Input: AUX1
Loop Mode: Analog
Audio Output:
AUX Earphone
Apply Audio Loop
Yes
Yes
Yes
Audio Internal
Tested
L2403 and L2404
Ok
More than
20mV AC Pk-Pk at
MP 88 (C3155) and
MP 87 (C3156)
Yes
Yes
Yes
START
Step 1: Perform
System Connector Protection
Connect: VBATT and DCIO/SEPI
No
No
No
Test
Step 2:
Load ITP SW into
the phone.
Use TRS Fixture
Use Fault Trace SW
Audio Internal
problems
Flash the Phone
with EMMA
SUCR SW
SL 5 Replace
L2403 or L2404
SL 4 Scrap
Replace
System Connector
X2400
SL 5 Replace
N2000
SL 4 Scrap
Replace
N3101
TROUBLESHOOTING
Go to
1.9 Volt DC
at MP 139 (V3101_Pin 1)
and MP 138 (V3101_Pin
2)
No
Is any of
C3137 and C3160
Short circuit
Yes
Replace
Faulty Component
No
1.9 Volt DC
at MP 74 (X3102) and
MP 75 (X3103)
No
Yes
More than
100mV AC Pk-Pk
at MP 38 (C3137) and
MP 42 (C3160)
Yes
1.8 Volt DC
at MP 19 (TP3100
AMPCTRL)
2.2 Volt DC
at MP 35 (L3105
CCO1)
No
No
Yes
No
Yes
SL 5 Replace
N2000
SL 4 Scrap
SL 5 Replace
L3105
SL 4 Scrap
SL 5 Replace
N2000
SL 4 Scrap
Replace
N3100
Replace
D2420
Connection
between
MP 114 (X2400_Pin 3)
and MP 110 (L2401)
Ok
Yes
Connection
between
MP 115 (X2400_Pin 4)
and MP 111 (L2402)
Ok
Yes
No
L2401
Ok
No
Yes
NoNo
L2402
Ok
Yes
2.2 Volt DC at
MP 86 (R3156)
Yes
No
SL 5 Replace
L2401
SL 4 Scrap
Replace
System Connector
X2400
SL 5 Replace
L2402
SL 4 Scrap
Replace
System Connector
X2400
Replace
N3101
SL 5 Replace
L3106 or N2000
SL 4 Scrap
1203-2528 rev. 1
16 (101)
TROUBLESHOOTING FM Radio Problems
/ Bluetooth Problems
SEMC Troubleshooting Manual
K850
Replace
N3101
SL 5 Replace
N2000
SL 4 Scrap
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
Connect the black probe at ground (Pin 9 system connector)
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.
TROUBLESHOOTING
Measure the current when Phone is off. Check the current consumption at Power
Supply Channel 1 VBATT.
Picture 1
Diode
Pin at
X2400
10L0LN2402 if Not 0L C2422 if Not 0L
20.0 1.4 No Action L2405 If higher than 1.4Ω
32.0 12K
41.0 1K
52.0 9K
62.0 9K
70L0LNot connected Not connected
81.4 1.5K V2420 if lower than 1.5KΩ
900No Action
100.7 200K-470K N2401if lower than 200KΩ
111.0 200K-470K N2401if lower than 200KΩ
120L80KV2421 if lower than 80KΩ
Measurement
/ Volt
Ohm
Measurement
/ Ohm
SL 4 Action SL 5 Action
N3101 if lower than 12KΩ
L2401 if higher than 12KΩC2421 If lower than 12KΩ
N3101 if lower than 1KΩ
L2402 if higher than 1KΩC2420 if lower than 1KΩ
N3101 if lower than 9KΩ
L2403 if higher than 9KΩC2416 if lower than 9KΩ
N3101 if lower than 9KΩ
L2404 if higher than 9KΩC2415 if lower than 9KΩ
R2451, R2440, R2436
if higher than 1.5KΩ
R2455 if Not 0Ω between
X2400_Pin9 and PBA GND
D2450 if lower than
200KΩ R2465 if higher
than 470KΩ
D2450 if lower than
200KΩ R2466 if higher
than 470KΩ
C2423, C2424
if lower than 80KΩ
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 and compare with limits
according to text below.
1203-2528 rev. 1
20 (101)
TROUBLESHOOTING Current Comsumption Test
SEMC Troubleshooting Manual
K850
-Transmitter current 850 MHz at Ch: 128 power level 5. Typical 400mA
-Transmitter current 900 MHz at Ch: 1 power level 5. Typical 400mA
-Transmitter current 1800 MHz at Ch: 512 power level 0. Typical 400mA
- Transmitter current 1900 MHz at Ch: 512 power level 0. Typical 400mA
- Transmitter current WCDMA BAND I Low RX Ch: 10562 at 23dBm output
power. Max 750mA
If current consumption is not correct, the fault could be fixed by running SERP
calibration if not then go to GSM and WCDMA Network problems TRS guides.
If the current consumptions are equal to test limits then go to Charging Test.
Step 4 with Fault Trace SW application:
-Flash the phone with ITP SW
-Use TRS Fixture
-Connect the:
Power Supply Channel 1 VBATT:
Instrument settings: Voltage: 3.8 Volt, Limiter 3A
Power Supply Channel 2 DCIO/SEPI
Instrument settings: Voltage: 5 Volt, Limiter 2A
-Connect DCIO/SEPI Cable to the phone
Perform the following tests:
-Max TX Power GSM 1800 MHz
Fault Trace SW settings:
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: GSM 900
Channel: 512
Power Level: 0
-Max TX Power GSM 1900 MHz
Fault Trace SW settings:
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: GSM 900
Channel: 512
Power Level: 0
TROUBLESHOOTING
-Max TX Power GSM 850 MHz
Fault Trace SW settings:
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: GSM 850
Channel: 128
Power Level: 5
-Max TX Power GSM 900 MHz
Fault Trace SW settings:
TX and RX GSM
GSM Mode Settings:
TX Switched
GSM Radio Settings:
Select Band: GSM 900
Channel: 1
Power Level: 5
-Max TX Power WCDMA BAND I
Fault Trace SW settings:
TX and RX WCDMA
Radio Settings:
Select Band: BAND I
Fast Select Channels: Ch LOW
Modes: Max Pwr 23dBm
Compare current consumption during Max TX Power Tests with the current
consumption limits below.
-Transmitter current 850 MHz at Ch: 128 power level 5. Typical 255mA
-Transmitter current 900 MHz at Ch: 1 power level 5. Typical 240mA
- Transmitter current 1800 MHz at Ch: 512 power level 0. Typical 200mA
- Transmitter current 1900 MHz at Ch: 512 power level 0. Typical 220mA
- Transmitter current in WCDMA BAND I
Low RX Ch: 10562 mode at max
power level 23 dBm and Rx on.Typical 600mA
Tolerance: ±10%
If current consumption is not correct, the fault could be fixed by running SERP
calibration if not then go to GSM and WCDMA Network problems TRS guides.
If the current consumptions are equal to the sheet then go to Charging Test.
1203-2528 rev. 1
21 (101)
TROUBLESHOOTING Battery & Curre nt Calib rat io n Test
/ Backup Capacitor Test
SEMC Troubleshooting Manual
K850
Battery and Current Calibration Test
Instrument settings for the Battery Calibration Test
Power Supply Channel 1 VBATT:
X Volt according to the Fault Trace SW Test Instructions:
Fault Trace SW-Logic-Phone Power-Battery Calibration and follow test instructions.
Limiter: 2A.
If test is performed at the Core Level then use dummy battery according to the K850
Equipment List for this test. If using TRS Fixture no dummy battery is needed.
Note: Maximal cable length between Power Supply Channel 1 VBATT and the dummy
battery or TRS Fixture must be 1m. The cable must have a capacity for at least 16A.
Limits Table for the Battery Calibration Test
Voltage Level on VBATT MinMaxUNIT
3.2 Volt
3.2 Volt
4.1 Volt
4.1 Volt
Instrument settings for the Current Calibration Test
Measure the voltage at the Back up capacitor by using Fault Trace SW- Logic ADC Values – Read ADC Value (Reading 1).
Step2:
This step should be done 30 seconds after Step 1. Measure the voltage at the
Backup capacitor by using Fault Trace SW - Logic – ADC Values - ADC Channels
– Read ADC Value (Reading 2).
Step3:
Compare the difference between Reading 1 and Reading 2 with the reference table
below. If the Reading 1 value is between 50 and 680 go to Interval 1, if between 681
and 800 go to Interval 2, if between 801 and 880 go to Interval 3 and compare with
the Reading 2 – Reading 1 Min and Max Limits.
TROUBLESHOOTING
If test is performed at the Core Level then use dummy battery according to the K850
Equipment List for this test. If using TRS Fixture no dummy battery is needed.
Note: The Power Supply Channel 1 VBATT must allow reverse current.
Note: Maximal cable length between Power Supply Channel 1 VBATT and the dummy
battery or TRS Fixture must be 1m. The cable must have a capacity for at least 16A.
Note: Length of the Power Supply Channel 2 DCIO/SEPI customized cable must be
exact 1,3m.
Power Supply Channel 1 VBATT:
3.8 Volt
Limiter 2A
Power Supply Channel 2 DCIO/SEPI:
5.0 Volt
Limiter: 2A
Limits Table for the Current Calibration Test
Measured Current NameMinMaxUnit
100mA
800mA
DCIO Current 50150mA
DCIO Current 725875mA
Reference Table:
MinMaxUnit
Absolute readout
Reading 1
Reading 1 (Dec) Reading 2–Reading 1 (Dec)
Interval 1 (50 – 680)
Interval 2 (681 – 800)
Interval 3 (801 – 880)
Note: The upper table contains the absolute limits for the readouts. The lower table
contains the allowed delta between the first and the second readout, separated in
time with 30 seconds.
50880Dec
MinMax
20210
530
010
If the readings is out of limits replace C2217 Backup capacitor.
If problem is not solved then SL 5 Replace N2000 SL 4 Scrap.
1203-2528 rev. 1
22 (101)
TROUBLESHOOTING Test Charging
/ ASIC Revision Test
SEMC Troubleshooting Manual
K850
To perform this test use:
-Phone with the Normal SW (SSW)
-Dummy Battery connected to Power Supply Channel 1 VBATT
-Fault Trace SW choose General – Asic Revisions – Read All
Power Supply Channel 1 VBATT must allow reverse current.
If the charging current is Not equal to the reference table go to Charging probl ems
TRS Guide.
If the charging current is equal to reference table then insert the normal battery and
test the charging current to define if the phone battery is working properly.
Measure the voltage at the battery to define the current level.
If the battery is receiving the right current, then the phone and the battery are
working properly.
Reference returned value can be found in the table below.
ASIC Description Product number Return value (hex)
D2000
N2000
N1400
N1400
N2525
Anja1200-0795 0x2C8
Vera1000-8142 0xC5
Bluetooth:
Firmware Revision
Chip ID
1200-6182
Ox5,0x1
0x0,0x0,0x0,0x0
Will always return 0
on STLC because
Chip ID is not
supported.
0.00V0.00V0.00V0.00V0.00V0.00V Power sup 0.00 VoltPhone Off0HzPower sup 3.80 Volt
Phone Off0.00V0.00V0.00V0.00V0.00V0.00V Power sup 3.80 VoltPhone On32.768kHzPower sup 3.80 Volt
Phone On2.6V2.5V1.8V2.7V2.7V2.6V Power sup 3.80 Volt
VCORE12VccAVDD_LPVBACKUPPhone Off0.00VPower sup 0.00 Volt
0.00V0.00V2.2V2.2V Power sup 0.00 VoltPhone On1.8VPower sup 3.80 Volt
Phone Off0.00V0.00V2.2V2.2V Power sup 3.80 Volt
Phone On1.2V2.8V2.2V2.2V Power sup 3.80 VoltMemory Card
C2217 Completely chargedMemory Card inserted and Combo Reader connected to the PBA
MPMP 16 (ST2202) Power sup 3.80 Volt
WCDMA N1210VMC28
Use Fault Trace SW to activate and deactivate WCDMA RadioPhone Off0.00V
VCC_WPAWPAVCCDCDC_ENVccAVDDE18
WCDMA Radio Off0.00V0.00V0.00V2.8V1.8VRed LED V2428
WCDMA Radio On3.4V1.4V1.8V2.8V1.8VUse Fault Trace SW to activate and deactivate Red LED
MPMP 128 (C2427) Power sup 3.80 Volt
Bluetooth N1400REDLED
Use Fault Trace SW to activate and deactivate BluetoothREDLED Off0.00V
VDIGVDDE18VBT27VDDE18BT_CLKRTCCLK
Bluetooth Off2.7V1.8V2.7V1.8V26MHz32.768kHzFM Radio N1400
Bluetooth On2.7V1.8V2.7V1.8V26MHz32.768kHzUse Fault Trace SW to activate and deactivate FM Radio
MPMP 151 (ST2282)MP 154 (C3305)MP 152 (R3301)Power sup 3.80 Volt
Main CameraVBATIVDDE18RTCCLK
Use Fault Trace SW to activate and deactivate Main Camera. Display and Main Camera module must be connected to the PBAFM Radio Off3.8V1.8V32.768kHz
Charging off 10.00V3.6V3.2V3.8VCharger voltage 0.0 Volt
Charging off 25.0V4.7V4.7V3.8VCharger voltage 5.0 Volt
Charging 100mA5.0V4.7V4.7V3.8VCharger voltage 5.0 Volt
Charging 800mA4.5V4.4V2.8V4.2VCharger voltage 5.0 Volt
VBUS
USB cable connected to PC
MPMP 44 (ST2201)Power sup 3.80 Volt
USB Cable disonnected
from the phone
USB Cable connected to
the phone
VCAMIOVCAMSACAMSYSCLK/MCLK
Charging 100mA:
Use Fault Trace SW:
Start Current Calibration
> Set VBATT to 3.8
Note: The Current
Calibration Test must be
repeated if current
consumption goes below
50mA at Power Supply
Channel 2 when you are
performing this
measurements.
DCIODCIO_INTCHREGCHSENSEP
VBUS
0.00V
5.0V
Charging 800mA:
Use Fault Trace SW:
Start Current Calibration ->
Set VBATT to 3.8V ->
Perform Step1 Note: The
Current Calibration Test must
be repeted if current
consumtion goes below
725mA at Power Supply
Channel 2 when you are
performing this
measurements.
MCLK 26MHz from N1200
MPMP 149 (R2100)
MCLK
Phone Off0Hz Power sup 3.80 Volt
Phone On26MHz Power sup 3.80 Volt
Pk-Pk 2.36V Mean 966mV Period 38.45ns Freq 26.01MHzPk-Pk 2.36V Mean 952mV Period 38.30ns Freq 26.11MHzPk-Pk 1.22V Mean 972mV Period 38.40ns Freq 26.04MHz
1203-2528 rev. 1
26 (101)
MEASUREMENT POINTS SIM & Memory Card Holder
SEMC Troubleshooting Manual
K850
X1001
C1004
C1003
C1013
C1008
C1007
C1006
C1005
C1002
C1000
R1000
R1003
R1004
R1002
R1001
756
X1002
C1114
C1009
C1115
C1010
C1001
C1011
C1012
MEASUREMENT POINTS
MEMORYCARD
SIMCARD
123
MPSIM3MPSIM5MPSIM7MPSIM1MPSIM2
1203-2528 rev. 1
27 (101)
LED_ROW1
LED_ROW2
LED_ROW3
LED_CAMERA
LED_VIDEO
LED_PLAY
AF_LED
LED_BACK
STEPUP50
CC
OPTOSENSE
FLASH_STROBE
LD_AD
MCLK
TX_ADSTR
DCDC_EN
TESTOUT
WPAVCC
BT_CLKREQ
VAD
SPL
SPR
Application & Sys.Performance
Application & Sys.Performance
LED_ROW1
LED_ROW2
LED_ROW3
LED_CAMERA
LED_VIDEO
LED_PLAY
AF_LED
LED_BACK
VCAMAF
VBATISTEPUP50
VDDE18
VDIG
VccA
VCC_WPA
VBT27
VAUDIO26
VBEAR26
VOPTO30
VCAML
VCAMSA
VCAMIO
VCAMSD
I2CCLK1
I2CDAT1
CAMSYSCLK
MCLKREQ
BT_CLK
RTCCLK
BTRESn
CAM_LDO_EN
MICN/AUXinR
MICP/AUXin L
FMRESn
FM_ANTENNA
VCAMAF
CAM_LDO_EN
VBATI
VDDE18
VDIG
VccA
VAUDIO26
VBEAR26
MEASUREMENT POINTS Sofi a Top Schematic
VCC_WPA VAUDIO26
VBT27
VCAMSD
I2CCLK1
I2CDAT1
CAMSYSCLK
MCLKREQ
BT_CLK
RTCCLK
BTRESn
VBATI
VDDE18
MICN/AUXinR
MICP/AUXinL
FMRESn
FM_ANTENNA
VOPTO30 VCAMSA
VBEAR26
VBATI
VDDE18
VAUDIO26
VBEAR26
RTCCLK
I2CDAT1
I2CCLK1
MICN/AUXinR
MICP/AUXinL
FMRESn
FM_ANTENNA
Audio
Audio
VCAMLVCAMIO
VAD
SPL
SPR
SPR
SPL
VAD
BT_CLKREQ
WPAVCC
TESTOUT
DCDC_EN
TX_ADSTR
MCLK
LD_AD
LEDS
FLASH_STROBE
OPTOSENSE
CC
VCAML
VAUDIO26
VBT27
VCAMIO
VccA
VCC_WPAVDIG
VCAMAF
VDDE18
VDIGVCAMSA
VBATI
VDDE18
VOPTO30
CAM_LDO_EN
VBATI
VDDE18
VccA
VCC_WPA
VBT27
VDIG
MCLKREQ
BT_CLK
RTCCLK
BTRESn
Access
Access
VBATI
VBATI
VDDE18
VOPTO30
VDIG
VCAMAF
VCAMSA
VCAMIO
VAUDIO26
VCAML
VCAMSD
I2CCLK1
I2CDAT1
CAMSYSCLK
CAM_LDO_EN
Imaging
Imaging
ANT
BT_ANT
LD_AD
MCLK
TX_ADSTR
DCDC_EN
TESTOUT
WPAVCC
BT_CLKREQ
STEPUP50
OPTOSENSE
FLASH_STROBE
LED_ROW1
LED_ROW2
LED_ROW3
LED_BACK
LED_CAMERA
LED_VIDEO
LED_PLAY
AF_LED
CC
X1203
X1201
X1202
GSM/UMTS
X1400
1
X1401
1
BT
STEPUP50
LED_ROW1
LED_ROW2
LED_ROW3
LED_BACK
LED_CAMERA
LED_VIDEO
LED_PLAY
AF_LED
1
1
1
SEMC Troubleshooting Manual
Access side GPIO mapping
UsagePort
USB_HSSTP
USB_HSDIR
CTMS
CFMS
USB_HS_INCLK
USB_HSNXT
USB_HSDATA4
USB_HSDATA5
USB_HSDATA6
USB_HSDATA7
not used
not used
not used
ResetAC
ModeKey1
ModeKey2
USB_HSCHIP_SEL
ModeKey3
USB_HSDATA3
BT_SPI_CS0n
BT_SPI_DI
BT_SPI_DO
BT_SPI_CLK
USB_HSOUTCLK
Application side GPIO mapping
PortUsage
FM_INT
AP110_INT
CAMIRQ
PSoC_INT
PSoC_RES
CARDDETECT
not used
GPIO_RST
not used
not used
X_CHARGE_RDY
MC_CLK_RET
MSDETECT
AX_INT1
AX_INT2
DCON
GPIO expander mapping
UsagePort
CIF_STANDBY
GPIO_O0
AFLEDEnable
GPIO_O1
AMPCTRL
GPIO_O6
GPIO_O7
MOTOR_LDO
CAM_LDO_EN
GPIO_O8
CAMRESn
GPIO_O9
uSD_bypass_option
GPIO_O10
CAM_LDO2_EN
GPIO_O11
GPIO_O12
X_CHARE_EN
GPIO_O13
SPD1
GPIO_O14
SB
GPIO_O15
SPD0
GPIO_P2 MOTOR_DOOR1
GPIO_P3 MOTOR_DOOR2
GPIO_P4 MOTOR_CW
GPIO_P5 MOTOR_CCW
AP110_SPI_CS
AccGPIO00
AccGPIO01
AccGPIO02
AccGPIO03
AccGPIO04
AccGPIO05
AccGPIO06
AccGPIO07
AccGPIO08
AccGPIO09
AccGPIO10
AccGPIO11
AccGPIO12
AccGPIO13
AccGPIO14
AccGPIO15
AccGPIO16
AccGPIO17
AccGPIO18
AccGPIO19
AccGPIO20
AccGPIO21
AccGPIO22
AccGPIO23
AppGPIO00
AppGPIO01
AppGPIO02
AppGPIO03
AppGPIO04
AppGPIO05
AppGPIO06
AppGPIO07
AppGPIO08
AppGPIO09
AppGPIO10
AppGPIO11
AppGPIO12
AppGPIO13
AppGPIO14
AppGPIO15
K850
MEASUREMENT POINTS
Made for
So a Top Schematic
So a Top
Document NrRevision
1200-1886 Page 13
1203-2528 rev. 1
28 (101)
BT_CLKREQ
MCLK
TESTOUT
LD_AD
VAD
TX_ADSTR
OPTOSENSE
FLASH_STROBE
LED_BACK
LED_ROW1
LED_ROW2
LED_ROW3
LED_CAMERA
LED_VIDEO
LED_PLAY
AF_LED
MEASUREMENT POINTS Application & System Perfor ma nc e Top
APP_LOG
DCON
VDDE18
VCORE18
BT_CLKREQ
MCLK
VAUDIO26
VMC28
VDIG
TESTOUT
LD_AD
VAD
TX_ADSTR
OPTOSENSE
CC
SPL
SPR
FLASH_STROBE
LED_BACK
LED_ROW1
LED_ROW2
LED_ROW3
LED_CAMERA
LED_VIDEO
LED_PLAY
AF_LED
VBACKUP
VBATI
SYSCLK2
DCON
VBATI
VDIG
VDDE18
VMC28
VAUDIO26
STEPUP50
APP_LOG
TESTOUT
LD_AD
VAD
OPTOSENSE
CC
SPL
SPR
FLASH_STROBE
LED_BACK
LED_ROW1
LED_ROW2
LED_ROW3
LED_CAMERA
LED_VIDEO
LED_PLAY
AF_LED
REDLED
SYSCLK2
VBACKUP
Connectivit y
Connectivit y
SERVICEn
ONSWAn
I2CDAT1
I2CCLK1TX_ADSTR
MICN/AUXinR
MICP/AUXinL
FM_ANTENNA
VBUS
DCIO
SERVICEn
ONSWAn
MICN/AUXinR
MICP/AUXinL
VPP
STEPUP50
CC
SPL
SPR
VDDE18
VDD_LP
VCORE18
VDDE18
BT_CLKREQ
MCLK
VDD_LP
SERVICEnFMRESn
ONSWAn
System Control
System Control
APP_LOG
SYSCLK2
CAMSYSCLK
MCLKREQ
DCON
RTCCLK
BT_CLK
BTRESn
SYSCLK2
RTCCLK
BT_CLK
CAMSYSCLK
MCLKREQ
BTRESn
FMRESn
I2CDAT1I2CDAT1
I2CCLK1I2CCLK1
FM_ANTENNAFM_ANTENNA
SEMC Troubleshooting Manual
K850
RTCCLK
BT_CLK
CAMSYSCLK
MCLKREQ
BTRESn
FMRESn
I2CDAT1
I2CCLK1
MICN/AUXinR
MICP/AUXinL
FM_ANTENNA
MEASUREMENT POINTS
WPAVCC
DCDC_EN
STEPUP50
STEPUP50
REDLED
VPP
VBUS
DCIO
WPAVCC
DCDC_EN
VPP
VBUS
DCIO
WPAVCC
DCDC_EN
Power
Power
VCORE18
REDLED
VBACKUP
VMC28
VBATI
VDDE18
VAUDIO26
VBEAR26
VOPTO30
VCAMAF
VCAML
VCAMSA
VCAMIO
VCAMSD
VBT27
VCC_WPA
CAM_LDO_EN
VDD_LP
VMC28
VDDE18
VCORE18
VBACKUP
VDIG
VccA
VDD_LP
VBATI
VDIG
VAUDIO26
VBATI
VDDE18
VDIG
VAUDIO26
VBEAR26
VOPTO30
VCAMAF
VCAML
VCAMSA
VCAMIO
VCAMSD
VBT27
VccA
VCC_WPA
CAM_LDO_EN
VBATI
VDDE18
VDIG
VAUDIO26
VBEAR26
VOPTO30
VCAMAF
VCAML
VCAMSA
VCAMIO
VCAMSD
VBT27
VccA
VCC_WPA
CAM_LDO_EN
Made for
Application & System Performance
Performance & Applications Top
Document NrRevision
1200-1887 Page 13
1203-2528 rev. 1
29 (101)
MEASUREMENT POINTS System Top
VDDE18
SEMC Troubleshooting Manual
K850
MEASUREMENT POINTS
VDD_LP
BT_CLKREQ
MCLK
SERVICEn
ONSWAn
VDD_LP
BT_CLKREQ
MCLK
SERVICEn
ONSWAn
VDDE18
VDD_LP
BT_CLKREQ
MCLK
SERVICEn
ONSWAn
Clocks & Resets
Clocks & Resets
BT_CLK
CAMSYSCLK
RTCCLK
MCLKREQ
DCON
BTRESn
FMRESn
SYSCLK2
MEMRESn
APP_LOG
MEMRESn
VCORE18
VCORE18
MEMRESn
Memories
Memories
APP_LOG
BT_CLK
CAMSYSCLK
RTCCLK
MCLKREQ
DCON
BTRESn
FMRESn
SYSCLK2
BT_CLK
CAMSYSCLK
RTCCLK
MCLKREQ
DCON
BTRESn
FMRESn
SYSCLK2
APP_LOG
Made for
Application & System Performance
System Top
Document NrRevision
1200-1887 Page 23
1203-2528 rev. 1
30 (101)
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