Sony Ericsson K200 Manual de usuario
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/127 A
Company Internal ©Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
Applicable for K200 and K220
Contents
1General ...............................................................................................................2
1.1 Service functions in the software...........................................................2
1.2 Misuse and other no warranty issues ....................................................3
2Appearance Problems.......................................................................................7
3Network/Signal Problems .................................................................................8
4On/Off Problems ................................................................................................ 9
5Audio Problem ................................................................................................. 11
6Key Problems...................................................................................................15
7Illumination Problems .....................................................................................16
8Alert Problems ................................................................................................. 17
9SIM Problems...................................................................................................19
10 Charging/Capacity Problems .........................................................................20
11 Camera Problems ............................................................................................ 21
12 Data Communication Problems .....................................................................22
13 Hands-Free Problems .....................................................................................23
14 Software Problems ..........................................................................................24
15 Revision History ..............................................................................................25
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1 General
This document outlines the mechanical repairs that should be made in an attempt to fix the common failures that are seen in the
field. To gain a complete understanding of how to test and repair a specific failure, this document should be used in conjunction
with the Test Instructions, Mechanical and the Working Instructions, Mechanical.
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
LED/illumination
Keyboard
Loudspeaker
Earphone
Microphone
Vibrator
Camera
Flash LED
Real time clock
FM radio (You need a headset to test)
Total call time
NOTE: Different names may occur depending on language setting and customization.
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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.
Front window broken
due to misuse.
LCD cracked due to
drop. Clear scratches Mark after drop Corrosion components
on the PCB.
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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 Liquid intrusion indicator
In the phone there is one indicator that can give you a hint to see if the phone is damage by liquid or not. This indicator is located at
the lower right corner, which is possible to see without disassemble the phone.
Fig. 1.2.1
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On the pictures below you will see the difference between an indicator that has been in contact with liquid (Fig. 1.2.3) and with one
that hasn’t (Fig. 1.2.2).
1.2.3 Action
Make a general visual inspection for misuse, corrosion or oxidation from liquid damage. No further action should be taken for a liquid
damaged phone. Handle the unit according to local directives.
This sticker is ok This sticker is not ok
The white indicator that has been in
contact with liquid turns into a red or pink
sticker. In this case you should check the
phone for liquid damage.
Note: There must be clear marks after
liquid on the PCB before rejecting the
phone for repair.
Fig. 1.2.2 Fig. 1.2.3
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2 Appearance Problems
Problem Area Items to Check Repair Action Reference Image
Appearance Visually inspect the cosmetic quality of
all user viewable surfaces
!If dirty – Clean
Note: Misuse is not covered by warranty.
Refer to chapter 1.2.
Visually inspect for improper gap
between seams
!Reassemble or replace parts if
necessary
Visually inspect all keys !If dirty – Clean
!If unacceptable damaged - Replace
If the issue has not been resolved "!Handle the unit according to local
directives
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3 Network/Signal Problems
Problem Area Items to Check Repair Action Reference Image
Before proceeding "!Perform a software update or update
content refresh.
Antenna film !If dirty/oxidize clean
!If damage replace
Pogo pin !If dirty/oxidize clean
No signal or poor
network
If the issue has not been resolved "!Handle the unit according to local
directives
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4 On/Off Problems
Problem Area Items to Check Repair Action Reference Image
On Off problem Before proceeding "!Perform a update content refresh.
Visually inspect the contact pads of
the battery
!If dirty or oxidized – Clean.
!If damaged – Replace battery.
Visually inspect the battery connector. !If dirty or oxidized – Clean.
On/Off problem Visually inspect the dome foil. !If damaged replaced.
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Problem Area Items to Check Repair Action Reference Image
Visually inspect the key pad !If damaged replaced.
If the issue has not been resolved "Handle the unit according to local
directives
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