Sony Ericsson G705 User manual

State: Released Rev 2
Troubleshooting Guide
- electrical -
G705
©Sony Ericsson Mobile Communications AB – Company Internal

Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
CONTENTS
1Troubleshooting Flow......................................................................3
1.1 Display .................................................................................................... 3
1.2 Illumination............................................................................................. 4
1.3 Keys & Sensors......................................................................................5
1.4 Alert & RTC.............................................................................................6
1.5 Audio.......................................................................................................7
1.6 On/Off......................................................................................................8
1.7 Charging & Capacity..............................................................................9
1.8 SIM......................................................................................................... 10
1.9 Camera..................................................................................................11
1.10 Data Communication ...........................................................................12
1.11 Memory Stick........................................................................................ 13
1.12 Network & Signal.................................................................................. 14
2Revision History.............................................................................15
For general information about troubleshooting, refer to
1220-1336: Generic Repair Manual - electrical
©Sony Ericsson Mobile Communications AB – Company Internal 2(15)

Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
1 Troubleshooting Flow
1.1 Display
Symptom:
Replace: Display problem
X4200, if damaged
Z4200, Z4201 or Z4202
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.2 Illumination
Symptom:
Replace: No Display illumination
X4200, if damaged
L4200, if more than 1 Ω
V4203
N2401
Symptom:
Replace: No Navigation keys illumination X4200
Symptom:
Replace: No Navigation Orange LED X4200
Symptom:
Replace: No Numeric keyboard illumination
X2401, if damaged
Symptom:
Replace: No Web short cut LED
X2401, if damaged
Symptom:
Replace: No Tally LED
X2402, if damaged
Symptom:
Replace: No Flash LED
X2402, if damaged
Symptom:
Replace: No Trickle Charge LED
X4200, if damaged
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.3 Keys & Sensors
Symptom:
Replace: Numeric keyboard problems
X2401, if damaged
Symptom:
Replace: Navigation keys problems
X4200, if damaged
Symptom:
Replace: Camera key problems S2403
Symptom:
Replace: Walkman / Play and Stop button problems S2404
Symptom:
Replace: Volume up key problems S2406
Symptom:
Replace: Volume down key problems S2405
Symptom:
Replace: Opto Sensor problems
X4200, if damaged
N2201
Symptom:
Replace: Slide Sensor problems
B4410, if damaged
Symptom:
Replace: Accelerometer problems N2411
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.4 Alert & RTC
Symptom:
Replace: Vibrator problems B2000
Symptom:
Replace: The clock gain or lose time – SERP calibrating is performed B2100
Symptom:
Replace: The clock has to be set after the battery has been detached C2214
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.5 Audio
Symptom:
Replace: No Microphone B3100
Symptom:
Replace: No Earphone
X4200, if damaged
Symptom:
Replace: No or bad Loudspeaker
X3102, if damaged
V3101
N3100
Symptom:
Replace: No Hands-free (PHF) Aux Microphone
X2405, if damaged
L2401 or L2402, if more than 2 Ω
N3101
Symptom:
Replace: No Hands-free (PHF) Aux Earphone
X2405, if damaged
L2403, L2404, L2405, L2406 or L2408, if more than 2 Ω
N3101
Symptom:
Replace: No Microphone and no Earphone – Phone stuck in PHF mode when PHF is not attached
V2417, if short circuit
N2422
Symptom:
Replace: No Hands-free (PHF) audio – Phone not recognizes PHF set
X2405, if damaged
N2422
Symptom:
Replace: No FM Radio
X2405, if damaged
R2451, if more than 1 Ω
N1300
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.6 On/Off
Symptom:
Replace: Current draw greater than 300 mA
N1200, if module getting hot
Symptom:
Replace: Current draw when powered off N1200
Symptom:
Replace:
Using no current when On/Off key is pressed and will not start.
Starts when charger is inserted.
X4200, if damaged
Symptom:
Replace: Hangs at gray display – Constant vibration – Will not power off. B2100
Symptom:
Replace: Draws current when On/Off key is pressed, returns to zero
L2200, if more than 1 Ω
L2201
N2200
N1211
N1200
Symptom:
Replace: Will not power off V2470
Symptom:
Replace: Other
X2201, if damaged
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.7 Charging & Capacity
Symptom:
Replace: No Charging from power outlet
X2405 or X2201, if damaged
V2200, if short circuit
R2449 or R2490, if more than 1 Ω
V2202
Symptom:
Replace: No Charging from computer via USB
X2405, if damaged
L2452, if more than 1 Ω
N2421
Symptom:
Replace: The Clock has to be set after the battery has been detached. C2214
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.8 SIM
Symptom:
Replace: SIM not detected
X2402, if damaged
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.9 Camera
Symptom:
Replace: Main and VGA Camera problems
N2203 or N2204
Symptom:
Replace: Main Camera problems
X4300, if damaged
Symptom:
Replace: VGA Camera problems
X4200, if damaged
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.10 Data Communication
Symptom:
Replace: No communication via the System Connector
X2405, if damaged
N2421, if not charging via USB
V2415, if pin11 at X2405 is short circuit to GND
V2416, if pin10 at X2405 is short circuit to GND
Z2400
N2420
Symptom:
Replace: Bad Bluetooth and W-LAN connection X1500
N1510
Symptom:
Replace: No Bluetooth connection N1300
Symptom:
Replace: No W-LAN connection N2300
Symptom:
Replace: No GPS connection
N1410 (G705 only)
B1400 (G705 only)
N1400 (G705 only)
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.11 Memory Stick
Symptom:
Replace: Memory stick not detected
X2403, if damaged
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
Troubleshooting Flow
1.12 Network & Signal
Symptom:
Replace: Phone fails to lock on to network during radiated (wireless) Go/NoGo test
Use RF probe to perform conducted Go/NoGo test
Symptom:
Check:
Replace:
Action:
Phone passes conducted (RF cable) Go/NoGo test but fails radiated (wireless) Go/NoGo
test
X1000, X1001, X1002, X1003, X1004 and X1005 for damage and replace, if necessary
X1200 for damage and replace, if necessary
Antenna frame
Rerun the phone through radiated (wireless) Go/NoGo testing
Symptom:
Action: Phone fails conducted (RF probe) Go/NoGo test
Run the calibration routine
Symptom:
Action: Fails conducted (RF probe) Go/NoGo test, but passes calibration
Rerun the phone through Go/NoGo testing
Symptom:
Replace: Fails any part of the calibration routine
X1200, if damaged
N1200, if GSM fault
N1200 or N1210, if UMTS fault
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Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
State: Released Rev 2
2 Revision History
Rev. Date Changes / Comments
1 2008-Nov-06 Initial release
2 2009-Feb-02 Walkman LED changed to Navigation Orange LED
Walkman KEY changed to Walkman/Play and Stop button
©Sony Ericsson Mobile Communications AB – Company Internal 15(15)