Sony Ericsson K200 Manuale utente

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/127 A

Company Internal ©Sony Ericsson Mobile Communications AB

Trouble Shooting Guide, Mechanical

Applicable for K200 and K220

Contents

1General ...............................................................................................................2

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

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

2Appearance Problems.......................................................................................7

3Network/Signal Problems .................................................................................8

4On/Off Problems ................................................................................................ 9

5Audio Problem ................................................................................................. 11

6Key Problems...................................................................................................15

7Illumination Problems .....................................................................................16

8Alert Problems ................................................................................................. 17

9SIM Problems...................................................................................................19

10 Charging/Capacity Problems .........................................................................20

11 Camera Problems ............................................................................................ 21

12 Data Communication Problems .....................................................................22

13 Hands-Free Problems .....................................................................................23

14 Software Problems ..........................................................................................24

15 Revision History ..............................................................................................25

Trouble Shooting Guide, Mechanical

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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 joystick.

⇒*⇐⇐*⇐*

They are as follows:

Service info

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

Loudspeaker

Earphone

Microphone

Vibrator

Camera

Flash LED

Real time clock

FM radio (You need a headset to test)

Total call time

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

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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.

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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

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1.2.2 Liquid intrusion indicator

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

the lower right corner, which is possible to see without disassemble the phone.

Fig. 1.2.1

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On the pictures below you will see the difference between an indicator that has been in contact with liquid (Fig. 1.2.3) and with one

that hasn’t (Fig. 1.2.2).

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.

This sticker is ok This sticker is not ok

The white indicator 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.

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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2 Appearance Problems

Problem Area Items to Check Repair Action Reference Image

Appearance Visually inspect the cosmetic quality of

all user viewable surfaces

!If dirty – Clean

Note: Misuse is not covered by warranty.

Refer to chapter 1.2.

Visually inspect for improper gap

between seams

!Reassemble or replace parts if

necessary

Visually inspect all keys !If dirty – Clean

!If unacceptable damaged - Replace

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

directives

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3 Network/Signal Problems

Problem Area Items to Check Repair Action Reference Image

Before proceeding "!Perform a software update or update

content refresh.

Antenna film !If dirty/oxidize clean

!If damage replace

Pogo pin !If dirty/oxidize clean

No signal or poor

network

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

directives

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4 On/Off Problems

Problem Area Items to Check Repair Action Reference Image

On Off problem Before proceeding "!Perform a update content refresh.

Visually inspect the contact pads of

the battery

!If dirty or oxidized – Clean.

!If damaged – Replace battery.

Visually inspect the battery connector. !If dirty or oxidized – Clean.

On/Off problem Visually inspect the dome foil. !If damaged replaced.

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Problem Area Items to Check Repair Action Reference Image

Visually inspect the key pad !If damaged replaced.

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

directives

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