Sony Ericsson S700i User manual

Trouble Shooting Guide, Mechanical
4/00021-1/FEA 209 544/89 A
Company Internal Sony Ericsson Mobile Communications AB
Approved according to 000 21-LXE 107 42/1
Trouble Shooting Guide, Mechanical
Applicable for S700i, S700c
Contents
1Explanations ....................................................................................................................2
1.1 Service functions in the software.......................................................................2
1.2 Misuse and other no warranty issues.................................................................2
1.2.1 Action ................................................................................................................2
1.2.2 Water indicator label .........................................................................................4
1.2.3 Action ................................................................................................................5
2Appearance Problem ......................................................................................................6
3Alert Problem..................................................................................................................9
3.1 Vibrator .............................................................................................................9
3.2 Speaker ..............................................................................................................9
4Audio Problem ..............................................................................................................11
4.1 Receiver...........................................................................................................11
4.2 Microphone......................................................................................................11
5Charging/Capacity........................................................................................................13
5.1 Charging ..........................................................................................................13
5.2 Capacity...........................................................................................................13
6Data Communication Problem ....................................................................................13
7Key/Flip..........................................................................................................................14
7.1 Keyboard .........................................................................................................14
7.2 Side keys..........................................................................................................15
7.3 Hinge ...............................................................................................................16
8LCD/Illumination..........................................................................................................18
8.1 LCD .................................................................................................................18
8.2 Illumination .....................................................................................................18
8.2.1 Main keyboard.................................................................................................18
8.2.2 Navigation keys ...............................................................................................19
9Network..........................................................................................................................20
10 On/Off ............................................................................................................................21
10.1 Battery .............................................................................................................21
10.2 On/Off key.......................................................................................................21
11 Other ..............................................................................................................................23
11.1 Camera Problem ..............................................................................................23
11.2 Camera shutter.................................................................................................23
12 Software Problem..........................................................................................................25
13 Revision History............................................................................................................26

Trouble Shooting Guide, Mechanical
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1 Explanations
1.1 Service functions in the software
The service menu will be accessed with the following key combination. Use the joystick.
⇒*⇐⇐*⇐*
They are as follows:
Service info
Service tests
Text labels
The phones software has a built in service functionality that allows you to test some of the
phones functions. (See point 2 above) It looks like this:
Main display
Camera
LED/illumination
Flash LED
Keyboard
Vibrator
Earphone
Speaker
Microphone
Real time clock
FM radio (You need a headset to test)
Total call time
1.2 Misuse and other no warranty issues
Misuse is not covered by warranty. This chapter will explain what’s not covered by warranty.
Phones that have been exposed to misuse will not be covered by warranty.
This means: if it is possible to repair the phone, the customer will have to pay for the repair.
SEMC will not allow any of these phones to be claimed into WCMS. Some local perspectives
may interfere with this. Please reference to local directives.
1.2.1 Action
Make a general visual inspection for misuse.
Below are some examples of what is not covered by warranty.

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Front window broken due
to misuse.
LCD cracked due to
drop.
Clear scratches
Mark after drop Plugs are not covered by warranty.
Corrosion components on the
PCB.
Corrosion components on the
PCB.
SIM reader damaged by
liquid.
System connector damaged by
liquid
Components around system
connector damaged by liquid
System connector pad(s) damaged
by liquid

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1.2.2 Water indicator label
In the phone there is placed a sticker that can give you a hint to see if the phone is damage by
liquid or not. This sticker is located near the type label (Fig. 1.2.1) and it is possible to see it
without disassemble the phone.
Fig. 1.2.1
On the pictures below you will see the different between a sticker that has been in contact
with liquid (Fig. 1.2.3) and with one that hasn’t (Fig. 1.2.2).
This sticker is ok
This sticker has not been in contact with
liquid.
Fig. 1.2.2
This sticker is not ok
This sticker has been in contact with liquid. As you
can see it has turn into a red or pink label. In this
case you should check the phone for liquid damage
(See point 1.2.2).
Note: There must be clear marks after liquid on the
PCB before rejecting the phone for repair.
Fig. 1.2.3

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1.2.3 Action
Make a general visual inspection for corrosion or oxidation from liquid damage. No further
action should be taken for a liquid damaged phone. Handle the unit according to local
directives.

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2 Appearance Problem
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
• Check the Case LCD front (Fig. 2.1), the Case Key rear (Fig. 2.2), the Case LCD rear
(Fig. 2.3), the Case Key front (Fig. 2.4) The Panel LCD rear (Fig. 2.3), the Panel LCD
front (Fig. 2.4) and the battery cover (Fig. 2.2) for damage, scratches and if the parts fit
correct. Replace the faulty component(s) if necessary.
• Check the Panel Camera, (Fig. 2.5) and the Cover Camera left and right (Fig. 2.5) for
damage, scratches and if the parts fit correct. Replace the faulty component(s) if
necessary.
• Check the button key (Fig. 2.4), the button LCD top, side and centre (Fig. 2.1), the button
shutter (Fig. 2.6) and the button lock switch (Fig.2.7) for damage, scratches and if the
parts fit correct. Replace the faulty component(s) if necessary.
• Check the panel IRDA (Fig. 2.8), the light guide (Fig. 2.7), the cover MS (Fig. 2.9), the
cover system connector I/O (Fig. 2.10) and the cover R/F (Fig. 2.11) for damage, scratches
and if the parts fit correct. Replace the faulty component(s) if necessary.
If the failure still occurs, handle the unit according to the local directives.
Fig. 2.1 Fig. 2.2

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Fig. 2.3 Fig. 2.4
Fig. 2.5 Fig.2.6
Fig. 2.7 Fig.2.8

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Fig. 2.9 Fig. 2.10 Fig. 2.11

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3 Alert Problem
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
3.1 Vibrator
• Turn on the phone. Go to the service test menu; choose “Vibrator”. Press any key to check
the vibrator works properly.
• Check if the vibrator pads (Fig. 3.1) are dirty or oxidized. Clean them if necessary.
• Check if the vibrator (Fig. 3.2) is mechanical damaged, dirty or oxidized. Replace it if
necessary.
• Check if the Frame RF (Fig. 3.3) is mechanical damaged. Replace it if necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 3.1 Fig. 3.2 Fig. 3.3
3.2 Speaker
• Turn on the phone. Go to the service test menu; choose “Speaker”. Press any key to check
the speaker works properly.
• Check if the keyboard flex-film is fitting correct into the FPC connector (Fig. 3.4) and
check if the FPC connector is closed.
• Check if the key FPC (Fig. 3.5) is mechanical damage, dirty or oxidized. Replace it if
necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.

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Fig. 3.4 Fig. 3.5

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4 Audio Problem
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
4.1 Receiver
• Turn on the phone. Go to the service test menu; choose “Earphone” press any key to check
the speaker works properly.
• Check if the receiver pads (Fig. 4.1) is dirty or oxidized. Clean or replace the FPC hinge if
necessary.
• Check if the receiver (Fig. 4.2) is mechanical damaged, dirty or oxidized. Replace it if
necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 4.1 Fig. 4.2
4.2 Microphone
• Turn on the phone. Go to the service test menu; choose “Microphone”.Check if the
microphone works properly.
• Check if the microphone pads (Fig. 4.3) are dirty or oxidized. Clean or replace the FPC
hinge if necessary.
• Check if the microphone (Fig. 4.4) is mechanical damaged, dirty or oxidized. Replace it if
necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.

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Fig. 4.3 Fig. 4.4

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5 Charging/Capacity
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
5.1 Charging
• Insert a working battery and connect a working charger to the phone. If the battery voltage
is too low the phone will charge the battery without turning on the phone (this will usually
take less than 10 minutes) and when the battery voltage is high enough the phone will be
able to turn on and show charging in the LCD.
• Check if the system connector (Fig 6.1) is mechanical damaged, dirty or oxidized. Replace
it if necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
5.2 Capacity
• The standby time will be reduced if, the light is turned on all the time, the bluetooth is
turned on, or if the infrared is turned on.
6 Data Communication Problem
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
• If there is a problem with the communication through the system connector, e.g. if it is not
possible to synchronizing with MS Outlook, check if the system connector (Fig. 6.1) is
mechanical damaged, dirty or oxidized. Replace it if necessary.
• Check if there is a problem with bluetooth communication. Replace the BT Antenna (Fig.
6.2) if necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 6.1 Fig. 6.2

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7 Key/Flip
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
7.1 Keyboard
• Turn on the phone. Go to the service test menu; choose “Keyboard”. Press all the keys.
The pressed key will be indicated in the LCD and a DTMF tone is heard.
• Check if the mechanically response feels normal and that all the keys have been showed in
the LCD.
• Check if the button LCD top, side, base and centre (Fig. 7.1) or the button key (Fig. 7.2) is
mechanical damaged or dirty. Replace the faulty necessary.
• Check if the key flex sheet (Fig. 7.3) or the LCD flex sheet (Fig.7.4) is mechanical
damaged, dirty or oxidized. Replace the faulty component if necessary.
• Check if the key FPC (Fig. 7.5) or the FPC hinge (Fig.7.6) is mechanical damaged, dirty
or oxidized. Replace the faulty component if necessary.
• Check if the keyboard flex-film is fitting correct into the FPC connector (Fig. 7.7) and
check if the FPC connector is closed.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 7.1 Fig. 7.2

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Fig. 7.3 Fig. 7.4 Fig. 7.5
Fig. 7.6 Fig. 7.7
7.2 Side keys
• Turn on the phone. Go to the service test menu; choose “Keyboard”. Press all the side
keys. The pressed key will be indicated in the LCD and a DTMF tone is heard.
• Check if the Button lock switch (Fig. 7.8) and the button shutter (Fig.7.9) is working
properly and if the mechanical response feels normal. Replace the faulty component if
necessary.
• Check if the key flex sheet (Fig. 7.10) is mechanical damaged, dirty or oxidized. Replace
it if necessary.
• Check if the key FPC (Fig. 7.11) is mechanical damaged, dirty or oxidized. Replace it if
necessary.
• Check if the FPC Connectors (Fig. 7.12) are closed properly and if the flex films are
mounted right in the FPC connectors.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.

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Fig. 7.8 Fig. 7.9
Fig. 7.10 Fig. 7.11 Fig. 7.12
7.3 Hinge
• Check if the mechanically response feels normal and if the hinge is loose. Replace the
hinge (Fig. 7.13), the panel LCD rear (Fig. 7.14) or the panel LCD front (Fig. 7.15) if
necessary.
• Check if the electrical response when opening the flip works. Replace the magnet (Fig.
7.16) if necessary. If the fault still occurs replace the key FPC (Fig. 7.17).
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 7.13 Fig. 7.14

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Fig. 7.15 Fig. 7.16 Fig. 7.17

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8 LCD/Illumination
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
8.1 LCD
• Turn on the phone. Go to service test menu; choose “Display”. You should see a colour
pattern.
• Check if the LCD unit (Fig. 8.1) works properly and if there are missing lines or
discolours. Replace it if necessary.
• Check if the LCD flex-film is fitting correct into the FPC connector (Fig. 8.2) and check if
the FPC connector is closed.
• Check if the harness (Fig. 8.3) is mechanical damaged, dirty or oxidized. Replace it if
necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 8.1 Fig. 8.2 Fig. 8.3
8.2 Illumination
• Turn on the phone. Go to service test menu; choose “LED/Illumination”. The illumination
should start blinking ~1Hz.
• Check if the LCD unit (Fig. 8.1) is lighting up properly. Replace it if necessary.
• Check if the harness (Fig. 8.3) is mechanical damaged, dirty or oxidized. Replace it if
necessary.
8.2.1 Main keyboard

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• Check if the entire 10 key LED’s (Fig. 8.5) is lighting in the same strength. Replace the
key FPC if necessary.
• Check if the key FPC is fitting correct into the FPC connector (Fig. 8.4) and check if the
FPC connector is closed.
8.2.2 Navigation keys
• Check if the entire 4 key LED’s (Fig. 8.6) is lighting in the same strength. Replace the
FPC hinge if necessary.
• Check if the harness (Fig. 8.3) is mechanical damaged, dirty or oxidized. Replace it if
necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 8.4 Fig. 8.5 Fig. 8.6

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9 Network
• Make a general visual inspection for misuse, corrosion or oxidation from liquid damage
according to point 1.2
• Insert a correct working SIM-card in the phone and turn it on. Check if the phone gets
service and if the signal strength indicator shows a correct value at the display. Compare
the value with a working phone.
• Check if the antenna flex (Fig. 9.1-9.2) is mechanical damaged, dirty or oxidized. Replace
it if necessary.
If the fault still occurs, try to update the phone to the latest available software version. If this
doesn’t solve the problem, handle the unit according to the local directives.
Fig. 9.1 Fig. 9.2