Sony Ericsson P1i User manual

Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/126 B
Company Internal ©Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
Applicable for P1i and P1c
Contents
1General ...............................................................................................................2
1.1 Service functions in the software...........................................................3
1.2 Misuse and other no warranty issues ....................................................4
2On/Off Problems ................................................................................................ 8
3Network/Signal Problems .................................................................................9
4Audio Problems ............................................................................................... 11
5Key Problems...................................................................................................14
6Display Problems ............................................................................................16
7Illumination Problems .....................................................................................17
8Alert Problems ................................................................................................. 18
9SIM Problems...................................................................................................19
10 Charging/Capacity Problems .........................................................................20
11 Data Communication Problems .....................................................................22
12 Software Problems ..........................................................................................24
13 Revision History ..............................................................................................25

Trouble Shooting Guide, Mechanical
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1General
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.
NOTE! A unit should always be inspected for liquid damage and flashed with latest software before using the Mechanical
Trouble Shooting Guide. Refer to the Mechanical Test Instructions for details regarding upgrading software.
NOTE! If all of the repair actions listed in this document for addressing a problem have been performed and a unit still is not
working, handle the unit according to your local Sony Ericsson Representative

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1.1 Service functions in the software
The service menu will be accessed with the following key combination. Use the joystick.
Press the sequence !!""!"!with the with the Jog Dial (#), and (!) on the keyboard.
They are as follows:
Service information
Service tests
Format internal disk
Under the “Service tests” option, the phone’s software has a built in service functionality that allows you to test some of the phones
functions. It looks like this:
Display
Camera
Touch screen
Illumination
LED’s
Keyboard
Vibrator
Speaker’s
Microphone
FMRadio
Memory stick
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 damage sticker
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 SIM reader (Fig. 1.2.1, Fig. 1.2.2. The one in Fig. 1.2.3 is the same as in 1.2.1) and it is possible to see it without
disassemble the phone.
Fig. 1.2.1 Fig. 1.2.2 Fig. 1.2.3
On the pictures below you will see the different between a sticker that has been in contact with liquid (Fig. 1.2.4) and with one that
hasn’t (Fig. 1.2.3).
This sticker is ok This sticker is not ok
The white sticker 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
(See point 1.1.1) .
Note: There must be clear marks after liquid on
the PCB before rejecting the phone for repair.
Fig. 1.2.3 Fig. 1.2.4

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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.
If the liquid intrusion indicator suggests liquid exposure, please consult your local SEMC representative for handling instructions.

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2On/Off Problems
Problem Area Items to Check Repair Action Reference Image
Check whether the phone vibrates 10 to
15 seconds after pressing the power
key and whether the keypad illuminates
•If activation of the vibrator or keypad
are detected, refer to the “Display
Problems” chapter 7
Before proceeding !•Perform a flash upgrade.
Visually inspect contact pads on battery •If dirty or oxidized – Clean pads.
Note: Be gentle do not bend or damage
the gold surface on connector pad’s
•If damaged – Replace the battery.
Visually inspect battery connector •If dirty or oxidized – Clean it.
Note: Be gentle do not bend or damage
the gold surface on connector pin’s
•If damaged – Send to an electrical
repair location.
Power On
problems
Visually inspect the power key •If function not ok, clear surroundings
•If damaged – Replace it.
•If the power switch on PCB is
damaged, send to an electrical level
repair location

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Problem Area Items to Check Repair Action Reference Image
If the issue has not been resolved !•Send to an electrical level repair
location
3Network/Signal Problems
Problem Area Items to Check Repair Action Reference Image
Visually inspect antenna contact pads If dirty or oxidized – Send to electrical
repair center
Visually inspect antenna If dirty, damaged or oxidized – Replace
Antenna ASM.
No Signal or Poor
Signal
Check whether the external RF port is
damaged, dirty, or oxidized.
If the RF port is dirty or oxidized, clean it. If
the RF port is damaged, send the unit to a
location approved to perform electrical
repairs.
If no or only very less signal – Push the
middle pin of the ext. antenna connector a
few times.

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Problem Area Items to Check Repair Action Reference Image
If the issue has not been resolved !•Send to an electrical level repair
location
Connect the phone to a handsfree car
kit connected with external antenna.
Visually inspect the antenna bar on the
phone.
•If no or only very less signal – Push
the middle pin of the ext. antenna
connector a few times.
Note: Be gently it might damage the
connector.
No signal when
using external
antenna (ex. Hands
free in car).
If the issue has not been resolved !•Send to an electrical level repair
location

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4Audio Problems
Problem Area Items to Check Repair Action Reference Image
Visually inspect the microphone’s
external port
•If clogged - Clean microphone gasket
mounted on frame inside.
Visually inspect the microphone
grommet
•If improperly mounted - Secure
properly connection
•If damaged – Replace it
Microphone:
If the issue has not been resolved !•Send to an electrical level repair
location

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Before proceeding !•Perform a flash upgrade and a setting
reset.
Visually inspect ear speaker’s external
port
•If clogged – Clean or replace Front
with net.
If the issue has not been resolved !•Replace ear speaker.
•Check and clean contact pads for
earspeaker
Ear speaker:
No or poor sound
quality
If the issue has not been resolved !•Send to an electrical level repair
location

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Before proceeding !•Perform a flash upgrade and a setting
reset.
Visually inspect the loud speaker’s dust
cloth
•If dirty or damaged – Replace Antenna
lid with speaker net.
If the issue has not been resolved !•Check or replace the acoustic box.
•Check and clean the Acoustic box
contacts on PCB
Loud speaker:
No or poor sound
quality
If the issue has not been resolved !•Send to an electrical level repair
location

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5Key Problems
Problem Area Items to Check Repair Action Reference Image
Visually inspect if the BtB connector is
properly connected.
•If improperly connected – Re-establish
proper connection.
•If damaged – Send to electrical repair.
Visually inspect for debris between
keypad and flex film ASM and for
damage to the keypad or flex film ASM.
•If dirty – Clean both parts.
•If damaged - Replace keypad and/or
flex film ASM as necessary.
If the issue has not been resolved !•Replace flex film ASM, if it has not
already been replaced.
Keyboard:
A key on the
keyboard is not
functioning or is
intermittent
If the issue has not been resolved !•Send to an electrical level repair
location
Touch screen Visually inspect if the BtB connector is
properly connected
•If improperly connected – Re-establish
proper connection.
•If damaged – Send to electrical repair.

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Problem Area Items to Check Repair Action Reference Image
Visually inspect for damage to the
touch screen
•Check Flex connection to Touch
screen
•Replace touch screen (see working
instruction Mechanical)
If the issue has not been resolved !•Send to an electrical level repair
location
Visually inspect for damage to the back
key
•If damaged - Replace it.
•Check or replace BtB flex
Visually inspect for damage to the
camera key
•If damaged - Replace it.
•Check or replace keyboard flex
Side keys
If the issue has not been resolved !•Send to an electrical level repair
location

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6Display Problems
Problem Area Items to Check Repair Action Reference Image
Check whether the phone vibrates 10 to
15 seconds after pressing the power
key and whether the keypad illuminates
•If activation of the vibrator are not
detected, refer to the On/Off
Problems” chapter 4
Before proceeding !•Perform a flash upgrade and a setting
reset.
Visually inspect if the BtB connector is
properly connected
•If improperly connected – Re-establish
proper connection.
•If damaged – Send to electrical repair.
LCD problem
If the issue has not been resolved !•Replace the LCD.

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7Illumination Problems
Problem Area Items to Check Repair Action Reference Image
Before proceeding !•Perform a flash upgrade and a setting
reset.
Visually inspect if the BtB connector is
properly connected
•If improperly connected – Re-establish
proper connection.
•If damaged – Send to electrical repair.
Visually inspect the dome sheet. •If damaged – Replace it
If the issue has not been resolved !•Replace the dome sheet.
Keys:
The entire keypad
or a portion of the
keypad does not
illuminate.
If the issue has not been resolved !•Send to an electrical level repair
location

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8Alert Problems
Problem Area Items to Check Repair Action Reference Image
Before proceeding !•Perform a flash upgrade and a setting
reset.
Visually inspect the vibrator pads on the
PCB
•If dirty or oxidized – Clean them.
Vibrator:
Visually inspect the vibrator •If dirty or oxidized – Replace it.
•If damaged – Replace it.

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9SIM Problems
Problem Area Items to Check Repair Action Reference Image
Inspect SIM holder •If dirty, oxidized or damaged – Replace
(SIM) MEM PCB ASM.
SIM undetected
(Insert SIM)
If the issue has not been resolved !•Handle the unit according to local
directives.
Check whether the phone is locked to a
particular carrier and whether the
correct carrier’s SIM is being used
•Use Correct Carrier SIM or test SIM.
Unit indicates an
incorrect SIM is
inserted (Insert
correct SIM) If the issue has not been resolved !•Send to an electrical level repair
location

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10 Charging/Capacity Problems
Problem Area Items to Check Repair Action Reference Image
Visually inspect the contact pads of the
battery
•If dirty or oxidized – Clean.
•If damaged – Replace battery.
Note: Be gentle do not bend or damage
the gold surface on connector pad’s
Visually inspect the system connector •If dirty, oxidized or damaged – Clean.
NOTE: Misuse is not covered by
warranty. Refer to chapter 1.2
Battery will not
charge
Visually inspect the battery connector •If dirty or oxidized – Clean it.
Note: Be gentle do not bend or damage
the gold surface on connector pin’s
•If damaged – Send to an electrical
repair location.