Sony-Ericsson W850 Service Manual WORKING INSTRUCTION

Working Instruction, Mechanical

Applicable for W850i

CONTENTS

1 Introduction .............................................................................. 3

1.1 Equipment.................................................................................4

1.2 General cautions ...................................................................... 5

1.3 Adhesives .................................................................................5

1.4 Recurrent Repair Actions ........................................................ 5

2 Disassembly ............................................................................. 6

2.1 Overview ...................................................................................6

2.1.1 Battery Cover Assembly and Battery..................................... 7

2.1.2 Upper Rear Lid Assembly .....................................................8

2.1.3 Upper Front Assembly Complete ..........................................9

2.1.4 Dividing the Phone into Upper and Lower half’s.................. 11

2.1.5 Numeric Key Foil assembly................................................. 15

2.1.6 Lower Rear Cover Assembly (and Main PBA) ....................16

2.1.7 ESD Protection Sheet .........................................................17

2.1.8 LCD Module and Navigation Key Foil Assembly ................. 18

2.1.9 Lower Front Assembly, Upper Carrier Assembly and Slide

Mechanism.......................................................................... 19

3 Replacements......................................................................... 21

3.1 Battery Cover..........................................................................22

3.2 Upper Rear Lid Assembly......................................................22

3.3 Upper Front Assembly Complete .........................................22

3.4 Numeric Key Foil Assembly..................................................22

3.5 Lower Rear Cover assembly ................................................. 22

3.6 ESD Protection Sheet ............................................................22

3.7 LCD Module ............................................................................22

3.8 Navigation Key Foil Assembly..............................................23

3.9 Lower Front Assembly, Upper Carrier Assembly and Slide

Mechanism..............................................................................23

3.10 External Antenna Plug Assembly.........................................24

3.11 IRDA Window..........................................................................25

3.12 Co-Brand Label....................................................................... 26

3.13 Tape Upper Rear Lid .............................................................. 27

3.14 Rubber Connector, Speaker Plate ........................................28

3.15 Keyboard Navigation .............................................................29

3.16 Ear Speaker............................................................................. 30

3.17 Water Indicator ....................................................................... 32

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3.18 Duo Lid ....................................................................................33

3.19 Keyboard Numeric .................................................................34

3.20 Microphone Grommet ............................................................ 35

3.21 Microphone .............................................................................36

3.22 Camera Key............................................................................. 37

3.23 Conductive Gasket.................................................................38

3.24 Tape for Slider Mechanism....................................................39

3.25 Damper for Lower Front (1) ................................................... 40

3.26 Damper for Lower Front (2) ................................................... 41

3.27 VGA Camera Gasket ..............................................................42

3.28 Camera Module (VGA) With Flex ..........................................43

3.29 Half- Half Flex with Components .......................................... 45

3.30 Adhesive Half to Half .............................................................46

3.31 Main Flex Assembly ............................................................... 47

3.32 Lower Damper for Upper Carrier Assembly ........................49

3.33 Protective Tape, Test Points ................................................. 50

3.34 Vibrator.................................................................................... 51

3.35 Volume Keys...........................................................................52

3.36 On/Off Key............................................................................... 53

3.37 BT Antenna .............................................................................54

3.38 System Connector..................................................................55

3.39 Dust Gasket, System Connector...........................................56

3.40 Insulation Label ...................................................................... 57

3.41 Flash Reflector .......................................................................58

3.42 LED-Flash Assembly..............................................................59

3.43 Loud Speaker Box Assembly................................................60

3.44 Camera Rubber....................................................................... 62

3.45 Shield Can Camera Module ................................................... 63

3.46 Camera Module 2M FF ........................................................... 64

3.47 LCD Tape................................................................................. 66

3.48 Slide Mechanism Protection Tape........................................67

3.49 Label 68

4 Reassembly ............................................................................ 69

4.1 Overview .................................................................................69

4.1.1 Upper Carrier Assembly, Slide Mechanism and Lower Front

Assembly............................................................................. 70

4.1.2 LCD Module Assembly and Navigation Key Foil Assembly. 73

4.1.3 ESD Protection Sheet .........................................................75

4.1.4 Lower Rear Cover Assembly (and Main PBA) ....................76

4.1.5 Reassembly of the Phones Upper and Lower half’s............77

Together with the Numeric Key Foil Assembly................................. 77

4.1.6 Upper Front Assembly Complete ........................................81

4.1.7 Upper Rear Lid Assembly ...................................................83

4.1.8 Battery and Battery Cover ................................................... 85

5 Revision history ..................................................................... 87

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Working Instruction, Mechanical

1 Introduction

W850i Black

W850i Black W850i White

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Working Instruction, Mechanical

1.1 Equipment

SPECIAL TOOLS

Requirements (no new tools):

• NTZ 112 459 Torque screwdriver (or equivalent)

• NTZ 112 288 Torx bit no. 6

• NTZ 112 1052 JCIS bit

• NTZ 112 1067 Camera tool

• NTZ 112 521 Flex film assembly tool

• NTZ 112 302/2 Front opening tool (Black or beige)

STANDARD TOOLS

The following tools have to be locally purchased:

• 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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1.2 General cautions

The following cautions are considered to be generic for all phone models and will not be repeated in the Disassembly, Replacements and Reassembly sections:

• S

WITCH OFF THE PHONE AND REMOVE ANY MEMORY STICK BEFORE THE START OF THE DISASSEMBLY!

• K

EEP ALL CONTACT SURFACES CLEAN!

• B

E 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!

E CAREFUL NOT TO DAMAGE ANY CONTACT SPRINGS!

• B

• R

EMEMBER TO REMOVE THE PROTECTION FOILS ON NEW PARTS SUCH AS THE FRONT COVER AND LCD!

• N

EVER TOUCH THE DISPLAY GLASS!

SE AIR BLOW EQUIPMENT TO KEEP THE FRONT WINDOW AND DISPLAY MODULE DUST FREE!

• U

Remove the memory stick!

Switch off the phone!

1.3 Adhesives

Use a dentist hook and/or the tweezers to remove old adhesives. Clean the surface with isopropyl alcohol before attaching new adhesives.

1.4 Recurrent Repair Actions

How to open a board-to-board connector with the front opening tool.

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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

The disassembly is done in the following sequence:

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

2. Upper Rear Lid

3. Upper Front Assembly Complete

4. Numeric Key Foil Assembly

5. Lower Rear Cover Assembly

6. Main PBA

7. ESD Protection Sheet

8. LCD Module Assembly

9. Lower Front Assembly (a), Slide Mechanism (b) and Upper Carrier Assembly (c)

REASSEMBLY

Done

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2.1.1 Battery Cover Assembly and Battery

Press with your thumbs (sometimes quite hard) on the battery cover assembly until you get a gap.

Remove the battery cover assembly.

Start to remove the battery from the phone with your fingers. Lift up the battery in the bottom end to unleash it.

If not released, turning the phone around at the same time will make it become released.

Remove the battery completely from the phone with your fingers.

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2.1.2 Upper Rear Lid Assembly

DO NOT INSERT THE GUITAR PICK TO DEEP INTO THE PHONE!

Carefully insert the guitar pick in the middle of the upper rear lid assembly.

Continue to gently bend until the lid starts to become loose from the upper front assembly complete.

Move the plectrum along the gap (around the corner) until the lid is loose on this side.

Continue and do the same thing on the other side.

Remove the upper rear lid assembly completely.

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2.1.3 Upper Front Assembly Complete

Remove the two inside screws from the upper carrier assembly by using the NTZ 112 288 (torx bit no 6).

Replace the screw if it’s damaged otherwise it can be reused.

Use the front opening tool to bend and make the upper front assembly complete to start to become loose.

BE CAREFUL NOT TO BREAK THE FRONT!

Continue to bend further down on the upper front assembly complete until it’s loose on this side.

Start on the opposite side and do the same thing.

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Disassembly Instruction continued

BE CAREFUL NOT TO BREAK THE FRONT!

And again.

Gently fold down the upper front assembly complete and remove it.

Disassembled upper front assembly complete.

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Working Instruction, Mechanical

2.1.4 Dividing the Phone into Upper and Lower half’s

BE CAREFUL NOT TO DAMAGE THE FLEX FILM!

Gently bend away the flex film a little bit with a flex film assembly tool.

Close the phone and remove the two inside screws from the lower front assembly by using the NTZ 112 288 (torx bit no

6).

Replace the screw if it’s damaged otherwise it can be r

Remove the two screws from the lower rear cover assembly by using the NTZ 112 288 (torx bit no 6).

Replace the screw if it’s damaged otherwise it can be reused.

.

Use the guitar pick to unsnap the Lower Front Cover from the Lower Rear Cover.

Use a guitar pick and gently move it along the side until the front is loose.

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Disassembly Instruction continued

DON’T BEND THE SIDE TO MUCH DOWNWARDS!

Now should the whole side have become loose.

Repeat the same procedure on the other side.

By the camera button insert the guitar pick until you get a gap.

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Working Instruction, Mechanical

Disassembly Instruction continued

SLIDE OUT THE PHONE!

B

E CAREFUL WITH THE HALF-HALF FLEX WITH COMPONENTS

(1) WHEN THE TWO HALF’S SEPARATES FROM EACH OTHER!

Divide the phone into two half’s.

SOMETIMES THE MICROPHONE GROMMET COMES LOOSE FROM

THE LOWER FRONT ASSEMBLY

- DON’T LOOSE IT!

B

E CAREFUL WITH THE FLEX FILM AND THE B T B CONNECTOR!

Gently bend with the front opening tool under the Numeric key foil assembly’s board to board connector like the picture shows until the connector become loose from the main PBA.

Do the same thing with the half-half flex with components board to board connector.

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Working Instruction, Mechanical

Disassembly Instruction continued

The phone is now divided into upper and lower half’s.

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2.1.5 Numeric Key Foil assembly

O

FTEN THE NUMERIC KEY FOIL ASSEMBLY BECOMES LOOSE

WHEN THE PHONE IS DIVIDED INTO TWO HALF

’S!

Remove the numeric key foil assembly with a blunt pair of tweezers or your fingers.

Removed numeric key foil assembly.

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Working Instruction, Mechanical

2.1.6 Lower Rear Cover Assembly (and Main PBA)

Start like this before removal of the lower rear cover assembly.

Gently bend with the front opening tool under the main PBA like the picture shows until the main PBA starts to become loose on this side of the lower rear cover assembly.

If necessary do the same thing on the other side.

Start to remove the main PBA. If necessary, wiggle the main PBA a little side to side while pulling it away from the lower front cover assembly.

Remove the main PBA completely from the lower rear cover assembly.

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Working Instruction, Mechanical

2.1.7 ESD Protection Sheet

Start like this before removal of the ESD protection sheet.

Use a blunt pair of tweezers to squeeze in between the ESD protection sheet and the upper carrier assembly until it’s become loose (if necessary bend a little).

Completely remove the ESD protection sheet with the tweezers.

Removed ESD protection sheet.

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Working Instruction, Mechanical

2.1.8 LCD Module and Navigation Key Foil Assembly

With the front opening tool gently bend until the navigation key foil assembly’s two board to board connectors (marked

with red) are loose.

BE VERY CAREFUL WITH THE LCD MODULE ASSEMBLY!

Lift the LCD module together with the navigation key foil assembly straight up

Do not ever touch the LCD glass surface.

Gently bend with the front opening tool under the LCD module board to board connector like the picture shows until the connector become loose from the navigation key foil assembly.

Removed LCD module and navigation key foil assembly.

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Working Instruction, Mechanical

2.1.9 Lower Front Assembly, Upper Carrier Assembly and Slide Mechanism

Remove the two screws from the lower front assembly by using the NTZ 112 1052 (JCIS bit).

Replace the screw if it’s damaged otherwise it can be reused.

Slide out the lower front assembly and remove it from the upper carrier assembly.

Remove the four screws from the upper carrier assembly by using the NTZ 112 1052 (JCIS bit).

Replace the screw with new ones.

Remove the slide mechanism from the upper carrier assembly.

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Working Instruction, Mechanical

Disassembly Instruction continued

Disassembled upper carrier assembly, slide mechanism and lower front assembly.

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Working Instruction, Mechanical

3 Replacements

Search for the part to be replaced on the Contents page and go to that instruction to be found in this Replacements section.

The instruction usually begins by directing you to the Disassembly section with a specification of the instructions you have to carry out in order to disassemble the phone as far as needed before the actual replacement.

Go back to this Replacements section and carry out the instruction. The instruction usually ends by directing you to the Reassembly section with a specification of the

instructions you have to carry out in order to reassemble the phone.

REPLACEMENTS

Start

Contents

page

DISASSEMBLY REASSEMBLY

Done

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3.1 Battery Cover

Follow the 2.1.1 Disassembly instructions! Prepare the new battery cover. Follow the 4.1.8 Reassembly instructions!

3.2 Upper Rear Lid Assembly

Follow the 2.1.1 – 2.1.2 Disassembly instructions! Prepare the new upper rear lid assembly. Follow the 4.1.7 – 4.1.8 Reassembly instructions!

3.3 Upper Front Assembly Complete

Follow the 2.1.1 – 2.1.3 Disassembly instructions!

Remove the keypad as described in 3.15 Keyboard Navigation. Prepare the new Upper front assembly Complete.

Attach a new name plate as described in 3.12 Co-Brand Label. Install the Keyboard Navigation as described in 3.15 Keyboard Navigation.

Follow the 4.1.6 – 4.1.8 Reassembly instructions!

3.4 Numeric Key Foil Assembly

Follow the 2.1.1 – 2.1.5 Disassembly instructions! Prepare the new Numeric Key Foil Assembly. Follow the 4.1.5 – 4.1.8 Reassembly instructions!

3.5 Lower Rear Cover assembly

Follow the 2.1.1 – 2.1.6 Disassembly instructions! Prepare the new Lower Rear Cover Assembly. Follow the 4.1.4 – 4.1.8 Reassembly instructions!

3.6 ESD Protection Sheet

Follow the 2.1.1 – 2.1.3, 2.1.7 Disassembly instructions! Prepare the new ESD Protection Sheet. Follow the 4.1.3, 4.1.6 – 4.1.8 Reassembly instructions!!

3.7 LCD Module

Follow the 2.1.1 – 2.1.3, 2.1.8 Disassembly instructions! Prepare the new LCD Module. Apply a new LCD tape on the LCD Module according to the 3.47 Replacement instructions! Follow the 4.1.2, 4.1.6- 4.1.8 Reassembly instructions!

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3.8 Navigation Key Foil Assembly

Follow the 2.1.1 – 2.1.8 Disassembly instructions! Prepare the new Navigation Key foil Assembly. Follow the 4.1.2 – 4.1.8 Reassembly instructions!

3.9 Lower Front Assembly, Upper Carrier Assembly and Slide Mechanism

Follow the 2.1.1 – 2.1.9 Disassembly instructions! Prepare the new Lower Front Assembly, Upper Carrier Assembly and slide mechanism. Follow the 4.1.1 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.10 External Antenna Plug Assembly

Follow the 2.1.1 Disassembly instructions!

Remove the external antenna plug assembly with a dentist hook.

Skip this section if you only disassemble the phone. Can be done without any previous disassembly

Assemble a new external antenna plug assembly with your fingers.

Follow the 4.1.8 Reassembly instructions!

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3.11 IRDA Window

Follow the 2.1.1 Disassembly instructions!

Start to remove the old IRDA window with a dentist hook.

Remove the IRDA window completely.

Press (quite hard) the new IRDA window into place with your fingers.

Correctly assembled IRDA window.

Follow the 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.12 Co-Brand Label

Gently remove the old co-brand label with a dentist hook.

Skip this section if you only disassemble the phone. Can be done without any previous disassembly!

Assemble a new co-brand label with a blunt pair of tweezers or by hand.

Keep the pressure on for a few seconds to secure a good fit.

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Working Instruction, Mechanical

3.13 Tape Upper Rear Lid

Follow the 2.1.1 – 2.1.2 Disassembly instructions!

Remove the old tape upper rear lid with a dentist hook.

Assemble a new (or two) tape upper rear lid with the help of a blunt pair of tweezers.

Follow the 4.1.7 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.14 Rubber Connector, Speaker Plate

Follow the 2.1.1 – 2.1.3 Disassembly instructions!

Remove the rubber connector, speaker plate with a blunt pair of tweezers.

Reassemble a new rubber connector, speaker plate with the tweezers.

Follow the 4.1.6 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.15 Keyboard Navigation

Follow the 2.1.1 – 2.1.3 Disassembly instructions!

Remove the old keyboard navigation with a blunt pair of tweezers or by hand.

New keyboard navigation.

Assemble a new keyboard navigation by hand.

Make sure that the keyboard navigation is placed correctly in the two guide cavities.

Follow the 4.1.6 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.16 Ear Speaker

Follow the 2.1.1 – 2.1.3 Disassembly instructions!

Remove the old ear speaker with a dentist hook.

Remove the old ear speaker completely with a blunt pair of tweezers.

WHEN ASSEMBLING A NEW EAR SPEAKER DON’T FORGET TO

REMOVE THE OLD EAR SPEAKER GASKET IN THE UPPER FRONT ASSEMBLY COMPLETE

.

Use a blunt pair of tweezers or a dentist hook for removal of the old gasket.

O NOT TOUCH OR BEND THE CONTACT SPRINGS!

D

Assemble a new ear speaker into the cavity and press gently with the tweezers and hold it there for a few seconds to secure a god fit.

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Working Instruction, Mechanical

Make sure that the new ear speaker is correctly assembled. Check so there is no damage on the connection springs.

Follow the 4.1.6 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.17 Water Indicator

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old water indicator with a dentist hook.

Assemble a new water indicator with a blunt pair of tweezers.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

INSPECTION (FROM THE OUTSIDE)

Check for water damage on the water indicator. With the battery cover assembly and the battery removed!

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Working Instruction, Mechanical

3.18 Duo Lid

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

Remove the old duo lid and replace it with a new one. Use a blunt pair of tweezers during the assembly.

Correctly assembled duo lid.

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.19 Keyboard Numeric

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

Remove the old keyboard numeric.

c

Assemble a new keyboard numeric with your fingers. Make sure it’s assembled in the correct position – notice the

guide pins in the lower front assembly.

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.20 Microphone Grommet

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

Remove the old microphone grommet with a blunt pair of tweezers.

Assemble a new microphone grommet into the lower front assembly with the tweezers.

Make sure that the microphone grommet is assembled in the right position.

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.21 Microphone

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

Remove the old microphone with a blunt pair of tweezers.

Assemble a new microphone into the lower front assembly with the tweezers.

Make sure that the microphone is assembled in the right position.

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.22 Camera Key

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

Remove the old camera key with a blunt pair of tweezers.

Assemble a new camera key into the lower front assembly with the tweezers.

Make sure that the camera key is assembled in the right position (use the guide pins).

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.23 Conductive Gasket

NOTICE! THERE ARE SEVERAL CONDUCTIVE GASKETS INSIDE

THE PHONE

Remove the old conductive gasket with a dentist hook/ blunt pair of tweezers.

.

Assemble a new (or more) conductive gasket with the help of a blunt pair of tweezers.

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Working Instruction, Mechanical

3.24 Tape for Slider Mechanism

Follow the 2.1.1 – 2.1.9 Disassembly instructions!

Remove the old tape for slider mechanism with a dentist hook.

Assembly a new tape for slider mechanism with a blunt pair of tweezers.

Follow the 4.1.1 Reassembly instructions!

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Working Instruction, Mechanical

3.25 Damper for Lower Front (1)

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

This is the damper that shall be removed.

Start to remove the old damper for lower front (1) by pushing it out from the back with a blunt pair of tweezers.

Assemble a new damper for lower front (1) with the tweezers – push it into the correct position.

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.26 Damper for Lower Front (2)

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

Start to remove the old damper for lower front (2) with a dentist hook.

Remove the old damper with a blunt pair of tweezers

Assemble a new damper for lower front (2) with the tweezers – push it into the correct position.

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.27 VGA Camera Gasket

Follow the 2.1.1 – 2.1.3 Disassembly instructions!

Remove the old VGA camera gasket with a dentist hook.

Assemble a new VGA camera gasket with the help of a blunt pair of tweezers.

Follow the 4.1.6 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.28 Camera Module (VGA) With Flex

Follow the 2.1.1 – 2.1.3 Disassembly instructions!

Open the FPC connector with a blunt pair of tweezers.

Disconnect the camera module (VGA) flex film with the flex film assembly tool.

Remove the camera module (VGA).

Gently lift the LCD Module assembly just enough to slide out the camera module (VGA).

Slide in a new camera module (VGA) into the correct position on the upper carrier assembly.

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Working Instruction, Mechanical

Replacement Instruction continued

Reconnect the camera module (VGA) flex film with the flex film assembly tool.

Close the FPC connector with a blunt pair of tweezers.

Follow the 4.1.6 – 4.1.8 Reassembly instructions!

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3.29 Half- Half Flex with Components

Follow the 2.1.1 – 2.1.9 Disassembly instructions!

Gently bend with a flex film assembly tool under the halfhalf flex with components board to board connector like the

picture shows until the half-half flex with components become loose from the upper carrier assembly.

IF YOU HAVE EXCHANGED THE MAIN FLEX ASSEMBLY BEFORE, MAKE SURE THAT IS PLACED IN THE MIDDLE OF THE SLOT IN THE UPPER CARRIER ASSEMBLY

OTHERWISE THE HALF-HALF FLEX WITH COMPONENTS WILL

NOT FIT INTO THE SLOT!

.

Assemble a new half-half flex with components. Use your fingers to keep the pressure on for a few seconds

to secure a good fit.

A new half-half flex with components mounted on an upper carrier assembly.

Follow the 4.1.1 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.30 Adhesive Half to Half

Follow the 2.1.1 – 2.1.9 Disassembly instructions!

Remove the old adhesive half to half with a dentist hook or a blunt pair of tweezers.

Assemble a new adhesive half to half with the help of a blunt pair of tweezers.

Follow the 4.1.1 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.31 Main Flex Assembly

Follow the 2.1.1 – 2.1.9 Disassembly instructions!

Gently bend with a blunt pair of tweezers under the main flex assembly like the picture shows until it becomes loose

from the upper carrier assembly.

Do the same thing as above but now on the other side.

Fold away the flex film but this time use the flex film assembly tool.

BE VERY CAREFUL WITH THE MAIN FLEX ASSEMBLY!

Continue to use the flex film assembly tool until the whole main flex assembly is totally free from the upper carrier assembly.

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Working Instruction, Mechanical

Replacement Instruction continued

Remove the main flex assembly with the flex film assembly tool.

Start to reassemble a new main flex assembly. Make sure that the main flex assembly is assembled in the

right position (use the guide pin).

Gently fold the flex film into the correct position.

Check that all of the flaps on the main flex assembly are correctly assembled (use the guide pins by the arrows).

Follow the 4.1.1 – 4.1.8 Reassembly instructions!

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Working Instruction, Mechanical

3.32 Lower Damper for Upper Carrier Assembly

Follow the 2.1.1 – 2.1.9 Disassembly instructions!

Start to remove the old lower damper for upper carrier assembly by pushing them out from the back with a blunt

pair of tweezers.

Completely remove the old dampers with the tweezers.

Assemble new dampers with the tweezers or your fingers.

Follow the 4.1.1 – 4.1.8 Reassembly instructions!

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3.33 Protective Tape, Test Points

Follow the 2.1.1 – 2.1.4 Disassembly instructions!

Remove the old protective tape, test points with a dentist hook.

Assemble a new protective tape, test points with the help of a blunt pair of tweezers.

Follow the 4.1.5 – 4.1.8 Reassembly instructions!

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3.34 Vibrator

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

O NOT TOUCH THE VIBRATOR CONTACT SPRINGS OR DAMAGE

D

THE FLYWHEEL

Start to lift up the vibrator with a blunt pair of tweezers.

!

Remove the old vibrator with a blunt pair of tweezers.

Press the vibrator to the bottom of the cavity gently with a blunt pair of tweezers (don’t press on the contact springs).

Check the new contact springs that they are in good condition and that they are not bent.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.35 Volume Keys

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old volume keys with a blunt pair of tweezers.

Assemble a new volume key into the lower rear cover assembly with the tweezers. Make sure that the volume key is assembled in the right position.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.36 On/Off Key

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old on/off key with a blunt pair of tweezers.

Assemble a new on/off key into the lower rear cover assembly with the tweezers. Make sure that the on/off key is assembled in the right position.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.37 BT Antenna

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Insert the dentist hook from underneath and bend until the BT antenna becomes totally free.

Remove the old BT antenna with a blunt pair of tweezers.

Assemble a new BT antenna with the tweezers. Make sure that the BT antenna is assembled in the right

position.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.38 System Connector

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old system connector by hand.

Skip this section if you only disassemble the phone.

Assemble a new system connector with your fingers. Press the system connector firmly to the bottom of the main

PBA. Picture shows a correct assembled system connector.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.39 Dust Gasket, System Connector

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old dust gasket by hand.

Assemble a new dust gasket with your fingers. Press the dust gasket firmly to the bottom of the main PBA. Picture shows a correct assembled dust gasket.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.40 Insulation Label

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old insulation label with a dentist hook.

Assemble a new insulation label with the help of a blunt pair of tweezers.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.41 Flash Reflector

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old flash reflector with your fingers. Pull straight up.

Assemble a new flash reflector with your fingers.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.42 LED-Flash Assembly

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the inside screw from the loud speaker box assembly by using the NTZ 112 1052 (JCIS bit).

Replace the screw if it’s damaged otherwise it can be reused.

Remove the LED-flash assembly with a blunt pair of tweezers.

APPLY 7 NCM

NTZ 112

1052 (JCIS BIT)!

±

1.5 NCM OF TORQUE FOR THE SCREW USING

Assemble and tighten the screw in the new LED-flash assembly.

The LED-flash assembly is now reassembled.

Replace the screws if it’s damaged otherwise it can be reused.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.43 Loud Speaker Box Assembly

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Start like this before removal of the loud speaker box assembly.

Remove the inside screw from the main PBA by using the NTZ 112 288 (torx bit no 6).

Replace the screw if it’s damaged otherwise it can be reused.

Remove the whole loud speaker box assembly by hand.

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Replacement Instruction continued

Begin by placing the new loud speaker box assembly against the main PBA.

Make sure that the loud speaker box assembly is mounted correctly.

APPLY 15 NCM

NTZ 112

288 (TORX BIT NO 6)!

±

1.5 NCM OF TORQUE FOR THE SCREW USING

Assemble and tighten the screw in the main PBA. The loud speaker box assembly is now reassembled.

Replace the screws if it’s damaged otherwise it can be reused.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.44 Camera Rubber

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old camera rubber with a blunt pair of tweezers.

Assemble a new camera rubber with your fingers.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.45 Shield Can Camera Module

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Gently release the shield can camera module with a dentist hook, work your way around the shield until it becomes completely loose.

Remove the camera shield with your fingers.

Reassemble a new shield can camera module with your fingers.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.46 Camera Module 2M FF

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

EVER TOUCH THE CAMERA LENS!

N

Start by pressing the mega camera removal tool over the camera module 2M FF all the way to the bottom.

If necessary wiggle the camera tool a little side to side and at the same time pull the camera module 2M FF straight up (together with the tool) from the socket.

Remove (with your fingers) the old camera module 2M FF from the camera tool.

Notice the small slot in the Notice the small slot in the camera module 2M FF socket.

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Replacement Instruction continued

Press gently on the top of the camera module 2M FF until it snaps into place.

Make sure that the camera module 2M FF is in the right position (to the bottom of the socket and properly locked).

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.47 LCD Tape

Follow the 2.1.1 – 2.1.3, 2.1.8 Disassembly instructions!

Remove the old LCD tape with a dentist hook.

Assemble a new LCD tape with the help of a blunt pair of tweezers.

Follow the 4.1.2, 4.1.6- 4.1.8 Reassembly instructions!

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3.48 Slide Mechanism Protection Tape

Follow the 2.1.1 – 2.1.6 Disassembly instructions!

Remove the old slide mechanism protection tape with a dentist hook.

Assemble a new slide mechanism protection tape with the help of a blunt pair of tweezers.

Follow the 4.1.4 – 4.1.8 Reassembly instructions!

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3.49 Label

Follow the 2.1.1Disassembly instructions!

Read the old label and/or write the information into the “Label make” program before removal

Note the position of the label before removal Heat up the label by using hot air, if needed. Carefully remove the label without causing scratches If there still are residues, clean the surface with isopropyl

alcohol

Check that the proper label format is loaded in the Zebra printer.

Write a new label by using the program “Label make” and check that the printing is OK.

Take the new label and place it onto the frame as in the adjacent picture.

O

NE LABEL ONLY IS ALLOWED!

Follow the 4.1.8 Reassembly instructions!

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4 Reassembly

After replacing a part being listed in Replacements, the instruction of that section usually ends by directing you to this Reassembly section with a specification of the instructions you have to carry out in order to reassemble the phone.

REPLACEMENTS

Start

Contents

page

DISASSEMBLY

4.1 Overview

The reassembly is done in the following sequence:

1. Upper Carrier Assembly (a), Slide Mechanism (b) and Lower Front Assembly (c)

2. LCD Module Assembly

3. ESD Protection Sheet

4. Main PBA

5. Lower Rear Cover Assembly

6. Numeric Key Foil Assembly

7. Upper Front Assembly Complete

8. Upper Rear Lid

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

REASSEMBLY

Done

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4.1.1 Upper Carrier Assembly, Slide Mechanism and Lower Front Assembly

Start like this before reassembling of the upper carrier assembly, slide mechanism and lower front assembly.

If you are going to assembly a new slide mechanism remove these four tapes from the upper carrier assembly.

Start to assemble the slide mechanism in the lower front assembly.

Hold the slide mechanism like this before installation of the two screws.

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APPLY 10 NCM

NTZ 112

1052 (JCIS BIT)!

±

1.5 NCM OF TORQUE FOR THE SCREW USING

Assemble and tighten the two screws in the lower front assembly.

Replace the screws if it’s damaged otherwise it can be reused.

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Reassembly Instruction continued

Take the upper carrier assembly and slide in the half –half flex into the lower front assembly.

Put it in the correct position like the picture shows.

APPLY 15 NCM

NTZ 112

1052 (JCIS BIT)!

±

1.5 NCM OF TORQUE FOR THE SCREW USING

Assemble and tighten four screws in the upper carrier assembly.

Replace the screws with new ones.

Slide the two half’s together.

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4.1.2 LCD Module Assembly and Navigation Key Foil Assembly

Start like this before reassembling of the new LCD module assembly.

Connect the LCD module’s board to board connector to the navigation key foil assembly, use your fingers.

Now the LCD module assembly is ready for the next step.

Slide in the LCD module assembly against the upper carrier assembly.

Gently fold the LCD module assembly towards the upper carrier assembly until the LCD module assembly is in the correct position.

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Reassembly Instruction continued

LCD module assembly correct assembled into the phone.

Gently fold the navigation key foil assembly over the upper carrier assembly.

Notice the two board to board connector’s position!

BE CAREFUL WITH THE LCD MODULE ASSEMBLY WHEN

ROTATING THE PHONE BACK AND FORTH

!

Press together the two board to board connectors with your fingers.

1. Start with the small one.

2. Continue then with the large one.

Don’t apply pressure on the two b t b connectors until you are certain that you have a “match”.

Make sure that the two board to board connectors are closed.

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4.1.3 ESD Protection Sheet

Start to reassemble the ESD protection sheet.

Snap/click the ESD protection sheet into the correct position with your fingers.

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4.1.4 Lower Rear Cover Assembly (and Main PBA)

BE VERY CAREFUL WITH THE ON/OFF KEY (1), VOLUME KEY (2),

WHEN THE MAIN PBA IS ASSEMBLED IN THE LOWER REAR COVER ASSEMBLY KEY BUTTONS!

Start like this before reassembling of the main PBA in the lower rear cover assembly.

- IT’S EASY TO SQUEEZE OR DAMAGE THE

Place the main PBA assembly towards the front end of the lower rear cover assembly.

Sometimes the rubber keys are in the way when folding the main PBA into place in the lower rear cover assembly. Gently push the rubber keys into place (if necessary) by using a pair of tweezers or a dentist hook (See caution text above).

Gently fold the main PBA into the lower rear cover

assembly.

Gently snap down the main PBA into the lower rear cover assembly (use your fingers).

Check so the main PBA is correctly assembled in the lower rear cover assembly.

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4.1.5 Reassembly of the Phones Upper and Lower half’s

Together with the Numeric Key Foil Assembly

SLIDE OUT THE PHONE!

E CAREFUL WITH THE FLEX FILM!

B

Hold the two half’s of the phone like the picture shows and connect the half-half flex with components board to board connector to the main PBA with your fingers.

Put in the numeric key foil assembly into the lower half of the phone.

Slide in the camera button flex film into the correct position in lower rear cover assembly.

Connect the numeric key foil assembly’s board to board connector to the main PBA with your fingers.

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Reassembly Instruction continued

Take the duo lid and put it into the correct position on the lower front assembly– use a blunt pair of tweezers or your fingers.

Make sure that the microphone grommet (1) and the keyboard numeric (2) are correctly assembled.

Gently close the two half’s of the phone together.

Turn the phone around.

AKE SURE THAT THE KEYBOARD NUMERIC IS IN THE CORRECT

M

POSITION BEFORE YOU START TO SQUEEZE THE TWO HALF TOGETHER

!

’S

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Reassembly Instruction continued

Continue to snap the phone together inn the middle.

MAKE SURE THAT THE DUO LID IS ASSEMBLED IN THE CORRECT

POSITION

!

And finally, snap together the top of the phone.

PPLY 15 NCM ± 1.5 NCM OF TORQUE FOR THE SCREWS USING

A

NTZ 112

288 (TORX BIT NO 6)!

Assemble and tighten the two screws in the lower rear cover assembly.

Replace the screw if it’s damaged otherwise it can be reused.

Slide the phone together.

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APPLY 15 NCM

NTZ 112

G

ASSEMBLY TOOL

288 (TORX BIT NO 6)!

ENTLY BEND UP THE TWO FLEX FILMS WITH THE FLEX FILM

±

1.5 NCM OF TORQUE FOR THE SCREWS USING

!

Assemble and tighten the two screws in the lower rear cover assembly.

Replace the screw if it’s damaged otherwise it can be reused.

BE CAREFUL WITH THE FLEX FILMS!

Gently fold back the two flex films with the flex film assembly tool towards the upper carrier assembly guide pins.

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4.1.6 Upper Front Assembly Complete

Slide out the phone.

Start like this before reassembling of the upper front assembly complete.

MAKE SURE EVERYTHING INSIDE THE UPPER FRONT COVER

COMPLETE IS ASSEMBLED

1. Rubber connector, speaker plate

2. Ear speaker

3. Keyboard navigation

!

D

ON’T FORGET TO REMOVE THE PROTECTIVE TAPE FROM THE

NEW LCD MODULE BEFORE REASSEMBLING THE UPPER FRONT ASSEMBLY COMPLETE

!

Do not touch the LCD glass surface. Blow away dust with an ionized air gun or blower.

Start to reassemble the upper front assembly complete.

Begin from the bottom of the phone then gently continue to squeeze the upper front assembly complete towards the top of the phone.

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Reassembly Instruction continued

Make sure that the two snap fit hooks in the upper front assembly complete are locked against the upper carrier

assembly.

APPLY 15 NCM

NTZ 112

288 (TORX BIT NO 6)!

±

1.5 NCM OF TORQUE FOR THE SCREWS USING

Assemble and tighten the two screws in the upper carrier assembly.

Replace the screw if it’s damaged otherwise it can be reused.

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4.1.7 Upper Rear Lid Assembly

Start to assemble the upper rear lid assembly.

Slide in the upper rear lid assembly completely.

“Lock” the upper rear lid assembly by pressing it down until you hear a click sound.

Do the same thing on the other side.

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Reassembly Instruction continued

Upper rear lid assembly reassembled.

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4.1.8 Battery and Battery Cover

Start like this before reassembling of the battery and the battery cover.

Lay down the top of the battery into the frame cavity.

Start to slide on the battery cover.

With your fingers, push on the battery cover until it is completely closed.

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Reassembly Instruction continued

The phone is now totally reassembled.

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5 Revision history

Rev. Date Changes / Comments

A 2006-09-20 Initial release B 2006-09-25 Added LCD tape and changed part LCD Module assembly to

LCD Module part number RNH 942 271

C 2006-10-05 Removal of tapes

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Sony-Ericsson W850 Service Manual WORKING INSTRUCTION

Specifications and Main Features

Frequently Asked Questions

User Manual