Sony Ericsson W910 Manuale utente

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/129 A

Company Internal

Sony Ericsson Mobile Communications AB

Trouble Shooting Guide, Mechanical

Applicable for W910

Contents

General ...............................................................................................................2

1.1

Service functions in the software...........................................................2

1.2

Misuse and other no warranty issues ....................................................3

Appearance Problems.......................................................................................7

Network/Signal Problems .................................................................................8

On/Off Problems .............................................................................................. 10

Audio Problems ............................................................................................... 11

Key Problems...................................................................................................14

Slider Problems ............................................................................................... 16

Display Problems ............................................................................................17

Illumination Problems .....................................................................................18

Alert Problems ................................................................................................. 19

SIM Problems...................................................................................................20

Charging/Capacity Problems .........................................................................21

Camera Problems ............................................................................................ 22

Data Communication Problems .....................................................................25

Software Problems ..........................................................................................26

Revision History ..............................................................................................27

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/129 A

Company Internal

Sony Ericsson Mobile Communications AB

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1 General

This document outlines the mechanical repairs that should be made in an attempt to fix the common failures that are seen in the

field. To gain a complete understanding of how to test and repair a specific failure, this document should be used in conjunction

with the Test Instructions, Mechanical and the Working Instructions, Mechanical.

1.1 Service functions in the software

The service menu will be accessed with the following key combination. Use the navigation keys ⇒*⇐⇐*⇐*

They are as follows:

Service info

Service settings

Service tests

Text labels

The phones software has a built in service functionality that allows you to test some of the phones functions. (See point 2 above) It

looks like this:

Main display

LED/illumination

Keyboard

Speaker

Earphone

Microphone

Vibrator

Camera

Flash LED

Video call camera

Memory Stick

FM Radio

Real time clock

Total call time

NOTE: Different names will occur depending on language setting and customization.

Trouble Shooting Guide, Mechanical

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1.2 Misuse and other no warranty issues

Misuse is not covered by warranty. This chapter will explain what’s not covered by warranty. Phones that have been exposed to

misuse will not be covered by warranty.

This means: if it is possible to repair the phone, the customer will have to pay for the repair. SEMC will not allow any of these

phones to be claimed into WCMS. Some local perspectives may interfere with this. Please reference to local directives.

1.2.1 Action

Make a general visual inspection for misuse.

Below are some examples of what is not covered by warranty.

Front window broken

due to misuse.

LCD cracked due to

drop.

Clear scratches Mark after drop Corrosion components

on the PCB.

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/129 A

Company Internal

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Corrosion components on

the PCB.

Corrosion components on the

PCB.

SIM reader damaged by

liquid.

System connector damaged by

liquid

Components around system

connector damaged by liquid

System connector pad(s)

damaged by liquid

Trouble Shooting Guide, Mechanical

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1.2.2 Liquid damage sticker

In the phone there is placed a sticker that can give you a hint to see if the phone is damage by liquid or not. This sticker is located

near the SIM reader (Fig. 1.2.1) and it is possible to see it without disassemble the phone.

Fig. 1.2.1

On the pictures below you will see the different between a sticker that has been in contact with liquid (Fig. 1.2.3) and with one that

hasn’t (Fig. 1.2.2).

This sticker is ok This sticker is not ok

The white sticker that has been in contact with

liquid turns into a red or pink sticker. In this

case you should check the phone for liquid

damage

(See point 1.1.1)

Note: There must be clear marks after liquid on

the PCB before rejecting the phone for repair.

Fig. 1.2.2 Fig. 1.2.3

Trouble Shooting Guide, Mechanical

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1.2.3 Action

Make a general visual inspection for misuse, corrosion or oxidation from liquid damage. No further action should be taken for a liquid

damaged phone. Handle the unit according to local directives.

Trouble Shooting Guide, Mechanical

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2 Appearance Problems

Problem Area Items to Check Repair Action Reference Image

Visually inspect the cosmetic quality of

all user viewable surfaces

•If dirty – Clean parts as necessary.

•If unacceptably scratched or damaged

– Replace damage parts as necessary.

NOTE: Misuse is not covered by

warranty. Refer to chapter 1.2

Visually inspect all keys •If dirty – Clean parts as necessary.

•If unacceptably scratched or damaged

– Replace damaged parts as

necessary.

NOTE: Misuse is not covered by

warranty. Refer to chapter 1.2

Appearance

Visually inspect for improper gap

between seams

•Reassemble or replace damaged parts

as necessary.

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3 Network/Signal Problems

Problem Area Items to Check Repair Action Reference Image

Before proceeding !•Do software update content refresh.

Note: this problem will not be solved by

a regular software update.

Visually inspect SIM holder. •If dirty or oxidized – Clean it

•If damaged – Handle the unit

according to local directives.

Visually inspect antenna contact pads

and the antenna connector.

•If dirty or oxidized – Clean it

•If damaged – Replace it.

Visually inspect the Speaker Flex

Module.

•If dirty or oxidized – Clean it.

•If damaged – Replace it.

Visually inspect the Antenna Coax and

Speaker Flex BtB connected to the

Main PCB.

•If improperly connected – Re-establish

proper connection.

•If damaged – Replace the Speaker

Flex Module.

No Signal or Poor

Signal

If the issue has not been resolved !

•Handle the unit according to local

directives.

Trouble Shooting Guide, Mechanical

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Problem Area Items to Check Repair Action Reference Image

Connect the phone to a handsfree car

kit connected with external antenna.

Visually inspect the antenna bar on the

phone.

•If no or only very less signal – Push

the middle pin of the ext. antenna

connector a few times.

Note: Take care not to scratch the gold

surface.

No signal when

using external

antenna (ex.

Hands free in car)

If the issue has not been resolved !•Handle the unit according to local

directives.

Trouble Shooting Guide, Mechanical

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4 On/Off Problems

Problem Area Items to Check Repair Action Reference Image

Check whether the phone vibrates 10 to

15 seconds after pressing the power

key and whether the keypad

illuminates.

•If activation of the vibrator or keypad

are detected, refer to the “Display

Problems” chapter 8

Before proceeding !•Do software update content refresh.

Note: this problem will not be solved be

a regular software update.

Cannot be power on,

Cannot be detected on USB cable on

EMMA III.

1. Log on to EMMA III as usual.

2. Use SEPI A1 with power charger

attached.

3. Press keys 2 and 5 when you connect

the phone.

Visually inspect contact pads on

battery.

•If dirty or oxidized – Clean pads.

•If damaged – Replace the battery.

Visually inspect battery connector. •If dirty or oxidized – Clean it.

Note: Take care not to bend the

connector pin’s

•If damaged – Handle the unit

according to local directives.

Visually inspect the power key. •If damaged – Replace on/off key.

Power On

problems

If the issue has not been resolved !•Handle the unit according to local

directives.

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