SonyEricsson J100 Service manual

Working Instruction, Mechanical

Applicable for J100i, J100a and J100c

CONTENTS

1 Introduction ..............................................................................2

1.1 Equipment.................................................................................3

1.2 General cautions......................................................................4

2 Disassembly.............................................................................5

2.1 Overview ...................................................................................5

2.1.1 Battery Cover & Battery.........................................................6

2.1.2 Front Cover ...........................................................................7

2.1.3 Keypad..................................................................................8

2.1.4 PBA.......................................................................................9

2.1.5 Antenna ass’y......................................................................10

3 Replacements.........................................................................11

3.1 Battery Cover..........................................................................12

3.2 Front Cover.............................................................................12

3.3 Keypad ....................................................................................12

3.4 Antenna ass’y.........................................................................12

3.5 Rear Cover ..............................................................................12

3.6 Dome Foil................................................................................13

3.7 System Connector..................................................................14

3.8 Earphone ass’y.......................................................................15

3.9 Loudspeaker ass’y.................................................................17

3.10 Loudspeaker Gasket..............................................................18

3.11 Microphone.............................................................................19

3.12 Vibrator....................................................................................20

3.13 RF Cover .................................................................................21

3.14 Name Plate..............................................................................22

3.15 Label…. ...................................................................................23

4 Reassembly............................................................................24

4.1 Overview .................................................................................24

5 Revision history.....................................................................30

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4.1.1 Antenna ass’y......................................................................25

4.1.2 PBA.....................................................................................26

4.1.3 Keypad................................................................................27

4.1.4 Front Cover .........................................................................28

4.1.5 Battery & Battery Cover.......................................................29

Approved according to 1/109 41-4/F C P 11 9 00

Working Instruction, Mechanical

1 Introduction

J100

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Working Instruction, Mechanical

1.1 Equipment

SPECIAL TOOLS

No new special tools are introduced

• NTZ 122 459 Torque screwdriver (or equivalent)

• NTZ 112 302/2 Front opening tool

STANDARD TOOLS

Standard tools have to be locally purchased

• Torx bit no. 5

• Dentist hook

• Blunt pair of tweezers

• Guitar pick

ESD EQUIPMENT

Protect the phone from ESD damages whenever it has

been opened by using:

• ESD-wristband

• ESD-gloves

LABEL EQUIPMENT

The following special equipment is required when replacing

or installing a new label:

• Hot air flow solder station

• Zebra printer connected to computer

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Working Instruction, Mechanical

1.2 General cautions

• Switch off the phone before the disassembly is begun!

• Keep all contact surfaces clean!

• Be careful when using tools like the dentist hook, tweezers, opening tools, guitar pick etc.

to avoid scratches or damages to the exterior and interior parts of the phone!

• Be careful not to damage any contact springs!

• Remember to remove the protection foils on new parts such as the front cover and the LCD!

• Never touch the display glass!

• Use air blow equipment to keep the front window and display module dust free!

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Working Instruction, Mechanical

2 Disassembly

When you are going to replace a part being listed in Replacements, the instruction of that section

usually begins by directing you to this Disassembly section with a specification of the instructions you

have to carry out in order to disassemble the phone as far as needed before returning to

Replacements for the actual replacement.

REPLACEMENTS

Start

Contents

page

DISASSEMBLY

2.1 Overview

REASSEMBLY

Done

The disassembly of the phone is done in the following

sequence:

1. Battery Cover (a) and Battery (b)

2. Front Cover

3. Keypad

4. PBA

5. Antenna ass’y

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Working Instruction, Mechanical

2.1.1 Battery Cover & Battery

Push on the bulge of the battery cover …

and slide the battery cover until it becomes released and

can be removed.

Put your finger here …

to raise and remove the battery.

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Working Instruction, Mechanical

2.1.2 Front Cover

Remove the two screws using torx bit no. 5 (T5).

THE SCREWS CANNOT BE REUSED

Insert the guitar pick at the bottom of the phone and slide it

towards the top to release the three snap hooks.

Repeat the procedure on the opposite side.

Gently wiggle the front cover and then remove it.

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Working Instruction, Mechanical

2.1.3 Keypad

Remove the keypad by lifting it straight up.

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Working Instruction, Mechanical

2.1.4 PBA

Remove the two screws using torx bit no. 5 (T5).

THE SCREWS CANNOT BE REUSED

Insert the ‘front opening tool’ next to the snap hook (at the

arrow) and bend to release the PBA from the snap hook.

Release the PBA at the top right corner.

Gently wiggle the PBA and then remove it.

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