Sony Ericsson J300 User manual

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

Working Instructions -mechanical

Applicable for J300

Contents

1 Read this first!..........................................................................................2

2 Introduction ..............................................................................................3

3 Repair actions ..........................................................................................4

3.1 Battery Cover ass'y & Battery................................................................ 5

3.2 Front Cover (A-cover)............................................................................ 7

3.3 Bottom Cover ........................................................................................ 9

3.4 PBA with metal frame.......................................................................... 11

3.5 Metal Frame ass'y ............................................................................... 13

3.6 Receiver & Receiver Gasket ............................................................... 14

3.7 Receiver Holder (plastic frame)........................................................... 15

3.8 Display Module.................................................................................... 16

3.9 Dome Sheet ........................................................................................ 18

3.10 Protection Tape (under SIM-card)....................................................... 19

3.11 Water Indicator .................................................................................... 19

3.12 Microphone.......................................................................................... 20

3.13 Vibrator................................................................................................ 21

3.14 Speaker ............................................................................................... 22

3.15 Speaker Gasket................................................................................... 22

3.16 Speaker Dust Mesh............................................................................. 23

3.17 Frame ass'y ......................................................................................... 23

3.18 Joystick Plastic Cap ............................................................................ 24

3.19 Keypad ................................................................................................ 25

3.20 Front (co-brand) Label......................................................................... 25

4 Label........................................................................................................26

5 Revision history .....................................................................................27

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

2(27)

1 Read this first!

After reading section 2 ‘Introduction’ and the first page of section 3 ‘Repair Actions’,

do as follows when a mechanical part needs to be replaced:

•Search for the part name on the contents page and go to the page number

where the instruction is found

•Disassemble the phone as far as needed by moving to the instructions stated as

e.g. Follow the Removal instructions of sections 3.1 – 3.6

•Carry out the actual repair action as described

•Assemble the phone by moving to the instructions stated as

e.g. Follow the Assembly instructions of sections 3.6 – 3.1 (pls. note the reverse order)

When watching the document on-line (connected to

CSPN), most of the Removal/Assembly headings are

blue-coloured and underlined.

By clicking on such a heading, an Internet Explorer

window opens, showing a video clip of the actual

removal/assembly.

To shrink the video window to its proper size, drag the

bottom right corner of the Internet Explorer until the video

is shown without blur and edges, which occurs when the

video window is approx. 12 x 9 cm (indicated by the red

frame in the adjacent picture).

When watching the document off-line (after downloading

and extracting the ZIP-file) and clicking on the heading,

this results in the start of a flash movie.

In this case the window size does not need to be adjusted.

The flash movie can be controlled from the keyboard by

holding down the Ctrl-key and pressing another key as

follows:

- Start and Stop: Ctrl – Enter

- Rewind to start position: Ctrl – R

- Move one small step forward: Ctrl – right arrow

- Move one small step back: Ctrl – left arrow

When watching the movies on-line as well as off-line, Flash Player ver. 6 or later

must be installed on the computer.

The Flash Player can be downloaded free of charge from www.macromedia.com.

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

3(27)

2 Introduction

Special Tools

No new special tools are introduced but a few other

Sony Ericsson tools are required:

•NTZ 112 459 Torque screwdriver (or equivalent)

set to 10 Ncm ±6%

•NTZ 112 288 Torx bit no. 6

•NTZ 112 544 Snap opening tool

•NTZ 112 521 Flexfilm assembly tool

•NTZ 112 302/2 Front opening tool

Standard Tools

The following tools have to be locally purchased:

•Dentist hook

•Blunt pair of tweezers

ESD Equipment

Protect the phone from ESD damages whenever it has been opened by using:

•ESD-gloves (cotton gloves)

•ESD-wristband

Adhesives

Use a dentist hook or a blunt pair of tweezers to remove old adhesives.

If necessary, clean the surface with isopropyl alcohol before attaching new adhesives.

Cautions

•Keep all contact surfaces clean, no dirt or hand grease

•Be careful when using tools like the dentist hook, tweezers, opening tools etc. to avoid

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

•Removed screws cannot be reused and must be scrapped

•Be careful not to damage the contact springs on parts like the receiver and vibrator

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

the display

•Never touch the display glass

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

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

4(27)

3 Repair actions

FRONT & REAR VIEWS

PRECAUTIONARY ACTIONS

Turn off the phone!

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

5(27)

3.1 Battery Cover ass’y & Battery

REMOVAL

Release the battery cover blocking element at the end of

the phone.

Lift battery cover up at the bottom and carefully release it

at the top to remove it from the frame.

Release the battery at the bottom and lift it up to remove it.

Turning the phone upside down will make it easier to get

the battery released.

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

6(27)

Battery Cover ass’y & Battery continued

ASSEMBLY

Put the top of the battery into the frame cavity and press

on the bottom until it is in a secure position.

Hold the bottom of the battery cover in a raised position

and push the top into the frame.

Then fold down the bottom part.

Push on the battery cover blocking element at the bottom

of the phone to secure the locking of the battery cover.

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

7(27)

3.2 Front Cover (A-cover)

REMOVAL

Follow the Removal instructions of section 3.1

Press with the snap opening tool on the top release

button (1) until you can see a small gap (2) between the

front cover and the frame.

Do not bend the front cover too much apart from the

frame!

Continue to press with your finger on the release button

until it becomes released from the front cover.

Gently wiggle the front cover side to side while pulling it

away from the frame.

Note that the keyboard may come loose from the front

cover.

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

8(27)

Front Cover (A-cover) continued

ASSEMBLY

Check that the keyboard is in its proper position before

the assembly is begun!

Do not bend the front cover too much upwards!

Raise the front cover and slide it against the bottom cover.

Press down the release button with your finger,

and snap the front cover onto the frame.

Continue to press with your finger until the front cover is

completely locked by the button (1).

Make sure that there are no gaps around the phone (2).

If there still is a gap somewhere, gently press the two

halfs together with your fingers.

Follow the Assembly instructions of section 3.1

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

9(27)

3.3 Bottom Cover

REMOVAL

Follow the Removal instructions of section 3.1 – 3.2

Use torx bit no. 6 to remove the two screws at the bottom

of the phone.

Carefully lift the bottom cover approximately 40º-45º with

your finger, this because of the hooks in the bottom

cover (1).

Pull the bottom cover away from the frame with your

fingers.

J300 Working Instructions - mechanical

3/00021-1/FEA 209 544/92 A

Company Internal Sony Ericsson Mobile Communications AB

10(27)

Bottom Cover continued

ASSEMBLY

Push the bottom cover with your fingers onto the frame in

a slight angle.

Apply 10 Ncm of torque when tightening two new screws

with torx bit no. 6.

Follow the Assembly instructions of sections 3.2 - 3.1

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