Sony Ericsson J110 Bedienungsanleitung

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/128 A

Company Internal ©Sony Ericsson Mobile Communications AB

Trouble Shooting Guide, Mechanical

Applicable for J110 and J120

Contents

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

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

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

4Appearance Problems.......................................................................................7

5Network/Signal Problems .................................................................................9

6On/Off Problems .............................................................................................. 11

7Audio Problems ............................................................................................... 13

Microphone........................................................................................................13

Receiver ............................................................................................................15

Loudspeaker......................................................................................................17

8Key Problems...................................................................................................18

9Display Problems ............................................................................................19

10 Illumination Problems .....................................................................................19

11 Alert Problems ................................................................................................. 20

Vibrator .............................................................................................................20

Loudspeaker......................................................................................................21

12 SIM Problems...................................................................................................22

13 Charging/Capacity Problems .........................................................................23

14 Hands-Free Problems .....................................................................................25

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

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

Trouble Shooting Guide, Mechanical

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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.

2 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

Speaker

Earphone

Microphone

Vibrator

Flash LED

Real time clock

FM radio (You need a headset to test) NOTE: For J120 only.

Total call time

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

Trouble Shooting Guide, Mechanical

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3 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.

3..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

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Company Internal ©Sony Ericsson Mobile Communications AB

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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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Company Internal ©Sony Ericsson Mobile Communications AB

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3..2 Liquid damage sticker

There is placed a sticker inside the phone that gives a hint to see if the phone is damage by liquid or not. This sticker is

located at 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 1.2.1).

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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Company Internal ©Sony Ericsson Mobile Communications AB

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3..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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Company Internal ©Sony Ericsson Mobile Communications AB

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4 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 parts if necessary

•If unacceptable scratched or damaged

– Replace damage parts if necessary

NOTE: Misuse is not covered by

warranty. Refer to chapter 1.2

Trouble Shooting Guide, Mechanical

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Company Internal ©Sony Ericsson Mobile Communications AB

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Problem Area Items to Check Repair Action Reference Image

Visually inspect all keys •If dirty – clean parts if necessary

•If unacceptable scratched or damaged

– Replace damage parts if necessary

NOTE: Misuse is not covered by

warranty. Refer to chapter 1.2

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Company Internal ©Sony Ericsson Mobile Communications AB

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5 Network/Signal Problems

Problem Area Items to Check Repair Action Reference Image

Before proceeding →Perform a flash upgrade.

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

•If damaged – Send to an electrical

repair location.

No Signal or Poor

Signal

Visually inspect antenna pads •If dirty or oxidized – Clean it

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/128 A

Company Internal ©Sony Ericsson Mobile Communications AB

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Problem Area Items to Check Repair Action Reference Image

Visually inspect antenna •If dirty or oxidized – Clean it.

•If damaged – Replace frame case

assy.

Visually inspect antenna springs •If antenna springs incorrect height,

lower than the rib – Replace frame

case.

If the issue is still not resolved →•Handle the unit according to local

directives.

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