Sony XPERIA tipo ST21i User manual

1266-1672 Rev 3
 Sony Mobile Communications AB – Company Internal
Working Instructions
- mechanical -
ST21i, ST21a, ST21i2, ST21a2
Xperia
TM
tipo

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
2(39)
CONTENTS
1 Exterior Views.................................................................................4
1.1 ST21i, ST21a, ST21i2, ST21a2.............................................................4
2 Tools................................................................................................5
3 Disassembly....................................................................................6
3.1 Battery Cover........................................................................................6
3.2 Battery...................................................................................................6
3.3 Front Assy ............................................................................................7
3.4 Frame Antenna Assy............................................................................9
3.5 Main PBA & LCD TFT 3.2Inch............................................................10
4 Replacement.................................................................................12
4.1 Battery Cover......................................................................................12
4.2 Front Assy ..........................................................................................12
4.3 Frame Antenna Assy..........................................................................12
4.4 LCD TFT 3.2Inch.................................................................................12
4.5 Audio Jack..........................................................................................13
4.6 Camera................................................................................................14
4.7 Camera Lens.......................................................................................16
4.8 Conductive LCM Gasket....................................................................17
4.9 Conductive TP Gasket.......................................................................18
4.10 Core Unit Label...................................................................................19
4.11 Loudspeaker.......................................................................................20
4.12 Receiver..............................................................................................21
4.13 RF Switch Mylar .................................................................................22
4.14 Rubber Indicator ................................................................................23
4.15 Shield Can Lid Baseband ..................................................................24
4.16 Shield Can Lid BT ..............................................................................25
4.17 Shield Can Lid RF ..............................................................................26
4.18 Speaker Gasket..................................................................................27
4.19 Speaker Mesh.....................................................................................28
4.20 TP Protection Film .............................................................................29
4.21 Water Indicator (on board).................................................................30
4.22 Water Indicator (on Audio Jack) .......................................................31
4.23 Board Swap - Replacement...............................................................32
4.24 Board Swap – Change Label.............................................................32
4.25 Board Swap – Customize of Software..............................................32
5 Reassembly...................................................................................33
5.1 LCD TFT 3.2Inch & Main PBA............................................................33
5.2 Frame Antenna Assy..........................................................................34
5.3 Front Assy ..........................................................................................35

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
3(39)
5.4 Battery.................................................................................................37
5.5 Battery Cover......................................................................................38
6 Revision History...........................................................................39
For general information about mechanical repair related issues, refer to
1220-1333: Generic Repair Manual - mechanical

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
4(39)
1 Exterior Views
1.1 ST21i, ST21a, ST21i2, ST21a2

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
5(39)
2 Tools
SPECIAL TOOLS
1. Torque Screwdriver
2. Flex Film Assembly Tool
3. Front Opening Tool
4. Bits (T5)
5. Bits (Philip screw)
6. Camera Removal Tool
For part no’s on the tools above, refer to the ‘Tools Catalogue/Matrix’!
STANDARD TOOLS
1. Tweezers
2. Nylon Pointer

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
6(39)
3 Disassembly
The disassembly is done in the following order:
1. Battery Cover
2. Battery
3. Front Assy
4. Frame Antenna Assy
5. Main PBA (a) & LCD TFT 3.2Inch (b)
3.1 Battery Cover
Insert fingers into the gap as shown in picture and gently pull
upwards to release the hooks of the Battery Cover.
3.2 Battery
Insert a finger and raise the bottom of the Battery to release
it.
Remove the Battery.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
7(39)
Disassembly
3.3 Front Assy
Remove the four screws (T5)M1.6 by using a screwdriver
with Bits (T5).
Scrap! Not to be reused!
Remove the screw M1.4 by using a screwdriver with Bits
(Philip screw).
Scrap! Not to be reused!
There are eight snap hooks securing the Front Assy.
Insert a Front Opening Tool as shown in picture and gently
pull upwards to release the three hooks of this side.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
8(39)
Disassembly
Do the same on the opposite side.
Turn the phone over and gently raise this side of the Front
Assy approximately 45 degree to release the hooks of the
top side and bottom side as shown in picture.
Do not stretch the FPC!
Disconnect the BtB connector.
Do not stretch the FPC!
Remove the Front Assy.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
9(39)
Disassembly
3.4 Frame Antenna Assy
There are three snap hooks securing the Main PBA.
Insert a Front Opening Tool as shown in picture and gently
pull upwards to release the hook.
Do the same on the second hook.
Be careful! Do not damage the components!
Do the same to release the hook of this side.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
10(39)
Disassembly
Release the Main PBA from the Frame Antenna Assy and
remove the Frame Antenna Assy.
3.5 Main PBA & LCD TFT
3.2Inch
Turn the Main PBA over.
Unlock the ZIF connector by using a Front Opening Tool.
Turn the Main PBA over.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
11(39)
Disassembly
Gently pull upwards to release the hook by using a Front
Opening Tool as shown.
Gently remove the LCD TFT 3.2Inch as shown in picture.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
12(39)
4 Replacement
4.1 Battery Cover
Follow the 3.1 Disassembly instructions!
Prepare a new Battery Cover.
Follow the 5.5 Reassembly instructions!
4.2 Front Assy
Follow the 3.1 – 3.3 Disassembly instructions!
Follow the 4.12 and 4.14 Removal instructions!
Prepare a new Front Assy.
Follow the 4.12 and 4.14 Installation instructions!
Follow the 5.3 – 5.5 Reassembly instructions!
4.3 Frame Antenna Assy
Follow the 3.1 – 3.3 Disassembly instructions!
Follow the 4.5 and 4.11 Removal instructions!
Prepare a new Frame Antenna Assy.
Follow the 4.11, 4.22 and 4.5 Installation instructions!
Follow the 5.3 – 5.5 Reassembly instructions!
4.4 LCD TFT 3.2Inch
Follow the 3.1 – 3.5 Disassembly instructions!
Prepare a new LCD TFT 3.2Inch.
Follow the 4.8 Installation instructions!
Follow the 5.1 – 5.5 Reassembly instructions!

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
13(39)
Replacement
4.5 Audio Jack
Follow the 3.1 – 3.4 Disassembly instructions!
Carry out the Removal as described below.
Prepare a new Audio Jack.
Follow the 4.21 Installation instructions!
Carry out the Installation as described below.
Follow the 5.2 – 5.5 Reassembly instructions!
REMOVAL
Gently pull upwards to remove the Audio Jack as shown.
INSTALLATION
Place a new Audio Jack into its socket.
Press to secure its position.
Do not touch the pins!

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
14(39)
Replacement
4.6 Camera
Follow the 3.1 – 3.5 Disassembly instructions!
Carry out the Removal as described below.
Prepare a new Camera.
Carry out the Installation as described below.
Follow the 5.1 – 5.5 Reassembly instructions!
REMOVAL
Note the orientation of the blades on the Camera
Removal Tool in relation to the position of the camera
socket!
Insert the tool all the way into the camera socket with the
Camera Removal Tool in the position shown in the picture.
Wag the tool to release the Camera from its socket as
indicated by the arrows.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
15(39)
Replacement: Camera
Remove the Camera.
INSTALLATION
Note the orientation of the Camera to be installed as
indicated by the pointers!
Place the Camera into the socket.
Press the Camera to the bottom of the socket.
Do not touch the camera lens!

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
16(39)
Replacement
4.7 Camera Lens
Follow the 3.1 – 3.4 Disassembly instructions!
Carry out the Removal as described below.
Prepare a new Camera Lens.
Carry out the Installation as described below.
Follow the 5.2 – 5.5 Reassembly instructions!
REMOVAL
Push against the Camera Lens from the back side with a
Nylon Pointer and remove it.
Scrap! Not to be reused!
INSTALLATION
Place a new Camera Lens on its proper position.
Press to secure its position.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
17(39)
Replacement
4.8 Conductive LCM Gasket
Follow the 3.1 – 3.5 Disassembly instructions!
Carry out the Removal as described below.
Prepare a new Conductive LCM Gasket.
Carry out the Installation as described below.
Follow the 5.1 – 5.5 Reassembly instructions!
REMOVAL
Gently peel off the Conductive LCM Gasket by using a Flex
Film Assembly Tool.
Scrap! Not to be reused!
INSTALLATION
Place a new Conductive LCM Gasket on its proper position
as indicated by the blue lines.
Press along to secure its attachment and position.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
18(39)
Replacement
4.9 Conductive TP Gasket
Follow the 3.1– 3.3 Disassembly instructions!
Carry out the Removal as described below.
Prepare a new Conductive TP Gasket.
Carry out the Installation as described below.
Follow the 5.3 – 5.5 Installation instructions!
REMOVAL
Gently peel off the Conductive TP Gasket by using a Flex
Film Assembly Tool.
Scrap! Not to be reused!
INSTALLATION
Place a new Conductive TP Gasket on the PBA as indicated
by the golden area.
Press along to secure its attachment and position.

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
19(39)
Replacement
4.10 Core Unit Label
Follow the 3.1 – 3.2 Disassembly instructions!
Carry out the Removal as described below.
Prepare a new Core Unit Label.
Carry out the Installation as described below.
Follow the 5.4 – 5.5 Reassembly instructions!
REMOVAL
Read the old Label Mobile Phone and write the information
into the ‘LabelMake’ program.
Carefully peel off to remove the Core Unit Label.
Scrap! Not to be reused!
INSTALLATION
Check that the proper label format is loaded in the Zebra
printer and write a new Label by using the ‘LabelMake’
software.
Press along the surface of the Core Unit Label to make it
securely attached as shown.
One label only is allowed!

Working Instructions (mech)
1266-1672 Rev 3
 Sony Mobile Communications AB –
Company Internal
20(39)
Replacement
4.11 Loudspeaker
Follow the 3.1 – 3.4 Disassembly instructions!
Carry out the Removal as described below.
Prepare a new Loudspeaker.
Carry out the Installation as described below.
Follow the 5.2 – 5.5 Reassembly instructions!
REMOVAL
Detach to remove the Loudspeaker by using a pair of
Tweezers.
INSTALLATION
Place a new Loudspeaker in the cavity.
Note the orientation of the Loudspeaker to be installed
as shown!
Press to secure its attachment.
Do not touch the contact pins!