Sony Ericsson Z320 Manual de usuario
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
Applicable for Z320
Contents
1General...............................................................................................................2
1.1 Service functions in the software...........................................................2
1.2 Misuse and other no warranty issues....................................................3
2Appearance Problems.......................................................................................6
3Network/Signal Problems .................................................................................7
4On/Off Problems................................................................................................9
5Audio Problems...............................................................................................11
6Key Problems...................................................................................................16
7Display Problems ............................................................................................19
8Illumination Problems.....................................................................................21
9Alert Problems.................................................................................................23
10 SIM Problems...................................................................................................24
11 Charging/Capacity Problems .........................................................................25
12 Camera Problems............................................................................................27
13 Data Communication Problems .....................................................................29
14 Hands-Free Problems .....................................................................................30
15 Software Problems..........................................................................................31
16 Revision History..............................................................................................32
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 2(32)
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
Speaker
Earphone
Microphone
Vibrator
Camera
Flash LED
Real time clock
Total call time
NOTE: Different names may occur depending on language setting and customization.
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 3(32)
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.
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 4(32)
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
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 5(32)
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 damaged by liquid or not. This sticker is located
Battery housing lower-right (Fig. 1.2.1) and it is possible to see it without disassemble the phone.
On the other 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).
If the white sticker has been in contact with liquid, it turn into a red or pink sticker. In this case you should check the phone for liquid
damage (see point 1.2.1).
NOTE! There must be clear marks after liquid on the PCB before rejecting the phone for repair.
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.
Location of sticker This sticker is ok This sticker is not ok
Fig. 1.2.1 Fig. 1.2.2 Fig. 1.2.3
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 6(32)
2 Appearance Problems
Problem Area Items to Check Repair Action Reference Image
Visually inspect the cosmetic quality of
all user viewable surfaces:
•Style-Up Cover, Battery Cover,
Front Lens, Camera Lens, Lower
•Visually inspect for improper gap
between seams
•Volume Key, IrDA window
Appearance
•Keypad, Main Lens, Co-brand,
Receiver Plate
•If dirty –Clean parts as necessary.
•If unacceptable scratched or damaged
–Replace damage parts as necessary.
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 7(32)
3 Network/Signal Problems
Problem Area Items to Check Repair Action Reference Image
Before proceeding •Perform a flash upgrade.
Visually inspect SIM holder •If dirty or oxidized
– Clean it
•If damaged
– Send to an electrical repair location.
No Signal or Poor
Signal
Visually inspect Antenna Pogo pin •If dirty or oxidized
– Clean it
•Trial the spring for elasticity. If locked
– Send to an electrical repair location
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 8(32)
Problem Area Items to Check Repair Action Reference Image
Visually inspect antenna contact pad •If dirty or oxidized
– Clean it
•If damaged
– Replace Antenna Assy.
Visually inspect Hinge Spring
Connector •If dirty or clogged
– Clean it.
•If damaged
– Replace the Hinge Spring Connector
If the issue has not been resolved •Handle the unit according to local
directives.
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 9(32)
4 On/Off Problems
Problem Area Items to Check Repair Action Reference Image
Check whether the phone vibrates after
pressing the power key and whether
the keypad illuminates
•If activation of the vibrator or keypad
is detected
– Refer to the “Display problem” in
Chapter 7.
Before proceeding •Perform a flash upgrade
Visually inspect contact pads on battery
Note! Use new battery to check
•If dirty or oxidized
– Clean pads
•If damaged
– Replace the battery
Power on problems
Visually inspect Battery Connector •If dirty or oxidized
– Clean it.
•If damaged
– Send to an electrical repair location.
Trouble Shooting Guide, Mechanical
4/000 21-1/FEA 209 544/121 A
Company Internal ©Sony Ericsson Mobile Communications AB 10(32)
Problem Area Items to Check Repair Action Reference Image
Visually inspect keypad outer •If power key damaged
– Replace keypad.
Visually inspect dome sheet •If dirty or oxidized
– Clean dome sheet.
•If damaged
– Replace the dome sheet.
If this issue has not been resolved •Send to an electrical repair location.
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