Sony Ericsson T226, T238 Installation Instruction 3
Working Instruction, SP/Mech
Working Instruction, SP/Mech
Applicable for T226, T230, T238
Contents
1
Disassembly .....................................................................................................................2
2 Reassembly ......................................................................................................................5
3 Replacement of Mechanical Parts .................................................................................8
3.1 Front Cover........................................................................................................8
3.2 Inlay................................................................................................................. 15
3.3 Microphone Grommet .....................................................................................19
3.4 Microphone .....................................................................................................20
3.5 LCD Assembly ................................................................................................ 21
3.6 Keypad.............................................................................................................24
3.7 Antenna/Antenna Cover Replacement ............................................................26
3.8 SEMC Icon ...................................................................................................... 31
3.9 Keypad PCB Assembly ...................................................................................33
3.10 Receiver and Receiver Gasket......................................................................... 34
3.11 Polyphonic Speaker and Speaker Grommet ....................................................36
3.12 Volume Switch and/or Volume Button ...........................................................38
3.13 Vibrator ...........................................................................................................41
3.14 Label Replacement ..........................................................................................42
3.15 Frame Replacement ......................................................................................... 43
4 Revision History............................................................................................................ 49
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Working Instruction, SP/Mech
1 Disassembly
• Tools: torque screwdriver, T6 Torx® bit, ESD-safe tweezers, orange stick, nylon pointer, front
opening tool
NOTE! Whenever the phrase “pry tool” is used, a nylon pointer, an orange stick, or a
front opening tool may be used, depending on the user’s preference.
Step-by-Step Instructions
NOTE! Keep all contact surfaces clean of dirt
and hand grease! Use finger cots or
gloves, and an ESD wrist strap!
1. Remove the battery cover by sliding it down
towards the bottom of the phone and lifting it
off.
2. Remove the battery by inserting a pry tool
underneath the tab at the bottom of the battery
and rotating the pry tool so that the flat edge of
the tool moves into a vertical orientation.
3. While lifting up the edge of the antenna cover
adjacent to the battery cavity, slide the cover
towards the top of the phone.
4. Once the antenna cover reaches the point where
it will no longer slide forward, lift the antenna
cover off of the phone.
5. Remove the six screws indicated.
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Working Instruction, SP/Mech
Step-by-Step Instructions
6. Remove the front cover assembly from the back
frame.
NOTE! The label tends to adhere to the top of
the shield can on the phone board that is
below the battery connector. Be careful
not to damage the label when removing
the phone board in the event that the
needed repair does not require label
replacement.
7. To remove the phone board and avoid damaging
the label, slightly lift the top corner of the phone
board that is near the speaker port.
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Working Instruction, SP/Mech
Step-by-Step Instructions
8. With the right side of the phone board slightly
lifted from the back frame, insert a pry tool
between the side of the back frame and the edge
of the board directly beside or slightly below the
middle screw holes in the board. Then gently
pry the phone board from the back frame.
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Working Instruction, SP/Mech
2 Reassembly
• Tools: torque screwdriver, T6 Torx® bit, ESD-safe tweezers
Step-by-Step Instructions
NOTE! Keep all contact surfaces clean of dirt and
hand grease! Use finger cots or gloves, and an
ESD wrist strap!
1. Place the phone board into the back frame.
2. Place the front cover and the back frame
assembly together.
NOTE! Before replacing the front cover, make sure
that there is no dust, debris, or fingerprints on
the LCD or the inside of the front cover
window!
3. Using a T6 Torx® bit in a torque driver set at 17
N-cm, reinstall the six screws in the following
order:
1 - Top Left
2 - Bottom Right
3 - Bottom Left
4 - Top Right
5 - Middle Left
6 - Middle Right
NOTE! The short black screws are used in the
middle holes. The longer gold screws are used
in the top and bottom holes.
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Working Instruction, SP/Mech
Step-by-Step Instructions
4. Place the antenna cover over the antenna so the
latches on the inside surface of the antenna cover
line up with the corresponding slots in the back
frame.
5. Push the antenna cover toward the bottom of the
phone until it clicks into place.
NOTE! Check that the seam where the antenna
cover and the front cover come together is flush
and even. Also check that the seams where the
antenna cover and the back frame come together
are flush and even.
6. Starting with the top of the battery, place the
battery, label-side up, into the battery cavity.
Make sure that the tabs at the top of the battery
fit into the corresponding slots in the top of the
battery cavity.
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Working Instruction, SP/Mech
Step-by-Step Instructions
7. Place the battery cover over the battery, so that
the ledge on each side of the battery cover fits
into the corresponding slots in the back frame on
each side of the battery cavity.
8. Slide the battery cover upward until it is securely
closed.
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Working Instruction, SP/Mech
3 Replacement of Mechanical Parts
3.1 Front Cover
• Tools: ESD-safe tweezers, orange stick, nylon pointer, front opening tool
NOTE! Whenever the phrase “pry tool” is used, a nylon pointer, an orange stick, or a
front opening tool may be used, depending on the user’s preference.
• Disassembly steps 1 - 5
Step-by-Step Instructions
NOTE! Keep all contact surfaces clean of dirt
and hand grease! Use finger cots or
gloves, and an ESD wrist strap!
1. Remove the old front cover assembly from the
phone.
2. Remove the microphone grommet and
microphone from the microphone cavity at the
bottom of the front cover. Set the microphone
aside for safekeeping and dispose of the
microphone grommet since it cannot be reused
once the phone has been opened (screws
removed).
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Working Instruction, SP/Mech
Step-by-Step Instructions
3. In a new front cover, install a speaker cloth over
the speaker ports. Make sure the speaker cloth
completely covers the speaker ports.
NOTE! The speaker cloth should lie within the
rectangular outline that is around the
speaker ports.
4. Once the speaker cloth is positioned, press
around the outer edge of the speaker cloth to
assure good adhesion to the front cover.
5. Remove an inlay adhesive film/backing
assembly from the large strip of backing
containing the adhesive film/backing assemblies.
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Working Instruction, SP/Mech
Step-by-Step Instructions
6. Place the adhesive film/backing assembly on an
inlay and remove the backing from the adhesive
film.
NOTE! The three notches in the adhesive film
should line up with the three pegs on the
inlay.
7. Alien the three pegs on the inlay up with the
corresponding holes near the bottom edge of the
new front cover.
8. Apply pressure over the entire outer surface of
the inlay so that a good bond forms between the
inlay and the front cover.
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Working Instruction, SP/Mech
Step-by-Step Instructions
9. Remove the protective paper from the dust
gasket, but make sure to leave the paper on the
center section.
10. Holding the center section with tweezers,
carefully position the side and bottom edges of
the dust gasket adjacent to the corresponding
walls along the sides and at the bottom of the
viewing window.
NOTE! Be careful not to scratch the front cover
window with the tweezers!
11. Using the flat end of a pry tool, smooth down the
dust gasket around the window, pressing out any
air bubbles, folds, or wrinkles in the gasket.
Also press the two vertical extensions of the
gasket down into the corners and up onto the
walls they vertically adhere to.
12. Gently remove and discard the center section of
the dust gasket.
NOTE! Check to make sure that no portion of
the dust gasket is visible when viewing
straight through
the front cover window.
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Working Instruction, SP/Mech
Step-by-Step Instructions
13. Lift the keypad PCB assembly out of the old
front cover.
14. Remove the keypad from the old front cover by
flexing the navigation pad inward, and pressing
out the “YES” and “NO” keys.
NOTE! Be careful not to damage the keypad by
over flexing.
15. Place the upper corner of the “Yes” key into the
appropriate location in the new front cover as
shown.
16. With the “Yes” key in place, flex the keypad so
that the “No” key will slide into its appropriate
location. Once the “Yes” and “No” keys are in
place, gently work the remaining keys into their
appropriate openings.
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Working Instruction, SP/Mech
Step-by-Step Instructions
NOTE! Make sure that each key fits securely
and that the top edge of the keypad isn’t
over the edge of the front cover
window.
17. Gently pry underneath the vibrator weight to
remove it from the old front cover.
NOTE! Be careful not to damage the vibrator
contacts.
18. Place the vibrator into the new front cover as
shown. Make sure that the weight is toward the
center of the phone, and that the contacts are
facing up.
NOTE! Be careful not to damage the vibrator
contacts.
19. Remove the receiver and grommet assembly
from the old front cover.
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Working Instruction, SP/Mech
Step-by-Step Instructions
20. Place the receiver and grommet assembly into
the new front cover as shown.
NOTE! Make sure that the placement peg in the
front cover fits into the appropriate hole
in the receiver grommet.
21. Place the keypad PCB assembly into the new
front cover with the dome foil side down and the
contacts toward the bottom of the phone.
• Reassembly steps 2 – 8
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Working Instruction, SP/Mech
3.2 Inlay
• Tools: Nylon pointer
• Disassembly steps 1 - 6
Step-by-Step Instructions
1. Lift the keypad PCB assembly out of the front
cover.
2. There are three pins that align and help hold the
inlay in place at the bottom of the front cover.
These pins can be accessed from the inside
surface of the front cover. Press out the
alignment pin that is in the slotted hole using the
pointed end of a nylon pointer.
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