Sony Ericsson W760 Trouble Shooting Guide
Trouble Shooting Guide, Electrical
Trouble Shooting Guide, Electrical
Applicable for W760
Contents
General ........................................................................................................................... 2
1
2 Repair Actions for Manual Test Failures ............................................................... 3
2.1 Power On / Off ................................................................................................. 3
2.2 Software Flash ................................................................................................ 3
2.3 Charging ........................................................................................................... 3
2.4 Hands-Free connection (PHF) ...................................................................... 3
2.5 SIM .................................................................................................................... 3
2.6 Main Display .................................................................................................... 3
2.7 Display Illumination ......................................................................................... 3
2.8 Flip Sensor ....................................................................................................... 3
2.9 Main Keypad Illumination .............................................................................. 3
2.10 Main Keypad Keys .......................................................................................... 3
2.11 Side Keys ......................................................................................................... 3
2.12 Side Key LEDs ................................................................................................ 3
2.13 Vibrator ............................................................................................................. 3
2.14 Earphone (Receiver) ...................................................................................... 3
2.15 Polyphonic Speaker (Loudspeaker) ............................................................. 3
2.16 Microphone ...................................................................................................... 3
2.17 Real Time Clock .............................................................................................. 3
2.18 Camera ............................................................................................................. 3
2.19 Bluetooth .......................................................................................................... 3
2.20 Memory Card Reader ..................................................................................... 3
2.21 FM Radio .......................................................................................................... 3
2.22 Light Sensor ..................................................................................................... 3
2.23 Accelerometer ................................................................................................. 3
3 Repair Actions for Go/No Go Test Failures .......................................................... 4
3.1 Network Connection ....................................................................................... 4
3.2 Other Failures .................................................................................................. 4
4 Repair Actions for Calibration Routine Failures .................................................. 4
4.1 EDGE ................................................................................................................ 4
4.2 WCDMA ........................................................................................................... 4
5 Revision History ........................................................................................................... 4
1211-1563 2
© Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Electrical
1 General
The purpose of this document is to indicate the electrical level repair actions associated with the
different failure symptoms.
For symptoms that have multiple repair actions, 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 actions from the Mechanical Trouble Shooting Guide
have been exhausted for the specific symptom.
Voltage, current, and resistance information may be provided for some symptoms to enable faster
repairs. Purchasing this equipment and performing these measurements is optional but
recommended.
Perform current measurements using a
dummy battery and power supply with digital
current display. The phone should be fully
assembled.
Perform voltage measurements with a
multimeter.
Perform resistance measurements with a
multimeter.
1211-1563 2 2(2)
© Sony Ericsson Mobile Communications AB
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