Sony Ericsson Z320 Manual de usuario

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB

Trouble Shooting Guide, Mechanical

Applicable for Z320

Contents

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

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

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

2Appearance Problems.......................................................................................6

3Network/Signal Problems .................................................................................7

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

5Audio Problems...............................................................................................11

6Key Problems...................................................................................................16

7Display Problems ............................................................................................19

8Illumination Problems.....................................................................................21

9Alert Problems.................................................................................................23

10 SIM Problems...................................................................................................24

11 Charging/Capacity Problems .........................................................................25

12 Camera Problems............................................................................................27

13 Data Communication Problems .....................................................................29

14 Hands-Free Problems .....................................................................................30

15 Software Problems..........................................................................................31

16 Revision History..............................................................................................32

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 2(32)

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

Speaker

Earphone

Microphone

Vibrator

Camera

Flash LED

Real time clock

Total call time

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

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 3(32)

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 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 4(32)

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

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 5(32)

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 damaged by liquid or not. This sticker is located

Battery housing lower-right (Fig. 1.2.1) and it is possible to see it without disassemble the phone.

On the other 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).

If the white sticker has been in contact with liquid, it turn 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.

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.

Location of sticker This sticker is ok This sticker is not ok

Fig. 1.2.1 Fig. 1.2.2 Fig. 1.2.3

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 6(32)

2 Appearance Problems

Problem Area Items to Check Repair Action Reference Image

Visually inspect the cosmetic quality of

all user viewable surfaces:

•Style-Up Cover, Battery Cover,

Front Lens, Camera Lens, Lower

•Visually inspect for improper gap

between seams

•Volume Key, IrDA window

Appearance

•Keypad, Main Lens, Co-brand,

Receiver Plate

•If dirty –Clean parts as necessary.

•If unacceptable scratched or damaged

–Replace damage parts as necessary.

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 7(32)

3 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 Pogo pin •If dirty or oxidized

– Clean it

•Trial the spring for elasticity. If locked

– Send to an electrical repair location

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 8(32)

Problem Area Items to Check Repair Action Reference Image

Visually inspect antenna contact pad •If dirty or oxidized

– Clean it

•If damaged

– Replace Antenna Assy.

Visually inspect Hinge Spring

Connector •If dirty or clogged

– Clean it.

•If damaged

– Replace the Hinge Spring Connector

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

directives.

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 9(32)

4 On/Off Problems

Problem Area Items to Check Repair Action Reference Image

Check whether the phone vibrates after

pressing the power key and whether

the keypad illuminates

•If activation of the vibrator or keypad

is detected

– Refer to the “Display problem” in

Chapter 7.

Before proceeding •Perform a flash upgrade

Visually inspect contact pads on battery

Note! Use new battery to check

•If dirty or oxidized

– Clean pads

•If damaged

– Replace the battery

Power on problems

Visually inspect Battery Connector •If dirty or oxidized

– Clean it.

•If damaged

– Send to an electrical repair location.

Trouble Shooting Guide, Mechanical

4/000 21-1/FEA 209 544/121 A

Company Internal ©Sony Ericsson Mobile Communications AB 10(32)

Problem Area Items to Check Repair Action Reference Image

Visually inspect keypad outer •If power key damaged

– Replace keypad.

Visually inspect dome sheet •If dirty or oxidized

– Clean dome sheet.

•If damaged

– Replace the dome sheet.

If this issue has not been resolved •Send to an electrical repair location.

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