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Trouble Shooting Guide, Electrical




Trouble Shooting Guide, Electrical
Applicable for F500 and K500 family




Contents
1 Abstract............................................................................................................................2
2 Repair Actions for Manuel Test Failures .....................................................................2
3 Repair Actions for Calibration Routine Failures.........................................................4
3.1 Calibrate 900 .....................................................................................................4
3.2 Calibrate 1800 ...................................................................................................5
3.3 Calibrate 1900 ...................................................................................................5
4 Revision History ..............................................................................................................7




4/00021-2/FEA 209 544/86 C Approved according to 000 21-LXE 107 42/1
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical


1 Abstract
The purpose of this document is to provide a sequence of repair actions associated with
different failure modes. The repair actions are listed in order of their probability of creating a
successful repair. The first action has the highest probability, and subsequent actions have
lower probabilities. The intention is for the repair technician to implement the first repair
action and then retest the phone. If the phone continues to fail the same test, then the
technician should continue to the second repair action. If the phone continues to fail the same
test after all of the repair actions are exhausted, then the phone will be considered not
reparable at this level.
This document should be used only after the steps specified in the Mechanical Trouble
Shooting Guide have been exhausted for the given problem area.



2 Repair Actions for Manuel Test Failures
Test Repair Action
Backup battery 1) C2606

Camera 1) X2510

Capacity/Short standby 1) V2610
2) N1400
3) N2600

Charging 1) J2400
1) V2610
2) V2210
3) N2400
4) N2600

Display 1) X2500

Earphone 1) N2400
2) N2300
3) D1201
4) N2310

IR communication 1) H2410

Illumination, Keyboard 1) R2550, R2551
2) V2550

Illumination, Display 1) N2500
2) X2500
4/00021-2/FEA 209 544/86 C 2(7)
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical




Keyboard, Joystick & side keys 1) Z2450
2) S2420
3) J2404, J2406

Red LED/Charging light 1) D2500

Microphone 1) N2400
2) N2300
3) D1201

On/Off 1) S2410
2) X2600
3) N2600
4) N1400
5) Z2450
6) B2200

Real Time Clock 1) B2200

SIM 1) J2401
2) N2600

Network 1) X1100
2) X1101




4/00021-2/FEA 209 544/86 C 3(7)
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical


3 Repair Actions for Calibration Routine Failures

3.1 Calibrate 900
Routine Repair Action
GSM900_Calibrate_RXVCO: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM900_Calibrate_TXVCO: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM900_Check_Output_Power: 1) N1400
2) N1200
3) N2600
4) W1400
5) N1202

GSM900_Loop_BW_Calibration: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM900_VCXO_Calibration: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM900_PA_Isolation: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM900_Measure_Multiframe_XXX: 1) N2600
(XXX can be : High or Low)

GSM900_Calc_XXXX_Power_DAC: 1) No repair action
(XXXX can be: Full, Low Up, High
Up, High Down or Low Down)

GSM900_Calibrate_RSSI 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202




4/00021-2/FEA 209 544/86 C 4(7)
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical

3.2 Calibrate 1800
Routine Repair Action
GSM1800_Calibrate_RXVCO: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM1800_Calibrate_TXVCO: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM900_Loop_BW_Calibration: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM1800_PA_Isolation: 1) N1200
2) B1300, V1300, C1311, C1314

GSM1800_Check_Output_Power: 1) N1400
2) N1200
3) N2600
4) W1410

GSM1800_Measure_Multiframe_XXX: 1) N2600
(XXX can be : High or Low)

GSM1800_Calc_XXXX_Power_DAC: 1) No repair action
(XXXX can be: Full, Low Up, High
Up, High Down or Low Down)

GSM1800_Calibrate_RSSI 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

3.3 Calibrate 1900
Routine Repair Action
GSM1900_Calibrate_RXVCO: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM1900_Calibrate_TXVCO: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202


4/00021-2/FEA 209 544/86 C 5(7)
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical

GSM1900_Loop_BW_Calibration: 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202

GSM1900_PA_Isolation: 1) N1200
2) B1300, V1300, C1311, C1314

GSM1900_Check_Output_Power: 1) N1400
2) N1200
3) N2600
4) W1410

GSM1900_Measure_Multiframe_XXX: 1) N2600
(XXX can be : High or Low)

GSM1900_Calc_XXXX_Power_DAC: 1) No repair action
(XXXX can be: Full, Low Up, High
Up, High Down or Low Down)

GSM1900_Calibrate_RSSI 1) N1200
2) B1300, V1300, C1311, C1314
3) N1202




4/00021-2/FEA 209 544/86 C 6(7)
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical




4 Revision History
Rev. Date Changes / Comments
A 2004-06-30 First release
B 2004-07-13 Revision update due to publishing problems
C 2004-08-19 K500 Added




4/00021-2/FEA 209 544/86 C 7(7)
Sony Ericsson Mobile Communications AB