Sony Ericsson Z750 Скачать руководство пользователя

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Trouble Shooting Guide

Mechanical

1001-5739 2

Sony Ericsson Mobile Communications AB

3(25)

Service functions in the software

The service menu will be accessed with the following key combination.

⇒

⇐⇐

⇐

The service menu options are:

Service info

Service Settings

Service tests

Text labels

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:

Main display
External display
LED/illumination
Keyboard
Speaker
Earphone
Microphone
Vibrating alert
Camera
Video call camera (only applies to Z750i)
Memory card
FM Radio
Real time clock
Total call time
Security

NOTE: Different names may occur depending on language setting and customization.

Содержание Z750

Страница 1: ...Capacity Problems 9 6 Data Transfer Problems using a Data Cable 9 7 Display Problems 10 Neither display is functioning 10 Only the outer display is not functioning 11 Only the inner display is not fu...

Страница 2: ...ument 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 softw...

Страница 3: ...ts Text labels 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 Main display External di...

Страница 4: ...se that are seen in the field Please refer to local directives on how a phone that appears to be damaged due to misuse should be handled Below are some examples of damage due to misuse that are not co...

Страница 5: ...intrusion indicator is red this is an indication of possible liquid exposure If the liquid intrusion indicator suggests liquid exposure please consult your local SEMC representative for handling instr...

Страница 6: ...a contact pads on the circuit board If dirty or oxidized clean the contact pads on the circuit board and replace the system connector If damaged escalate to an electrical repair level If the issue is...

Страница 7: ...ot resolved Replace the camera module Lines or marks in picture If the issue is still not resolved Escalate to an electrical repair level Inspect camera module connections Inspect the ZIF connector an...

Страница 8: ...tion Reference Visually inspect the video telephony camera window If dirty clean the camera window portion of the upper inner screw cover If scratched or damaged replace upper inner screw cover If the...

Страница 9: ...s not been resolved Replace the system connector and clean the contact pads on the circuit board Phone is not charging properly If the issue is still not resolved Escalate to an electrical repair leve...

Страница 10: ...rly connected establish proper connection If dirty or oxidized clean both halves of the connection If the portion of the connection on the hinge flex is damaged replace the hinge flex If the circuit b...

Страница 11: ...per front cover assembly Inspect outer display s connection to the PWB assembly Make sure the outer display ZIF connector is properly connected and secured If the flex is damaged replace the outer dis...

Страница 12: ...nected and secured If the display flex is damaged replace the inner display If the ZIF connector is damaged replace the upper PWB assembly If the issue is not resolved Replace the inner display if it...

Страница 13: ...front cover Inspect the connections between the receiver and upper PWB assembly If any of the contacts are dirty replace the receiver and clean the contact pads on the upper PWB assembly If the contac...

Страница 14: ...and clean the contact pads on the circuit board FM Radio not working If the issue is still not resolved Escalate to an electrical repair level 10 Hands Free Problems Problem Area Items to Inspect Repa...

Страница 15: ...s needed Keyboard Illumination The entire keyboard will not illuminate Perform the following action Escalate to an electrical repair level Keyboard Illumination A portion of the keyboard does not illu...

Страница 16: ...pair Action Inspection Reference Before proceeding Perform a setting reset Perform the following action Replace upper PWB assembly Perform the following action Replace the inner display Inner Display...

Страница 17: ...ace parts as necessary If debris is present between the keyboard and keypad light shield clean and or replace parts as necessary If the issue is not resolved Replace the dome foil if it has not been r...

Страница 18: ...de key assembly If the side key dome array is damaged replace the SIM FPC assembly Inspect the SIM FPC assembly s connection to the circuit board If improperly connected establish proper connection If...

Страница 19: ...ate to an electrical repair level 14 Microphone Problems Problem Area Items to Inspect Repair Action Inspection Reference Before proceeding Perform a setting reset Inspect the microphone s external po...

Страница 20: ...ork Signal Problems Problem Area Items to Inspect Repair Action Inspection Reference Perform the following action Replace antenna assembly and clean the antenna s contact points on the circuit board N...

Страница 21: ...f the navigation keypad are detected refer to the Display Problems section Inspect battery connector If dirty or oxidized clean the battery connector s contact pins If damaged escalate to an electrica...

Страница 22: ...t Repair Action Inspection Reference If the issue is not resolved Replace the dome foil if it has not been replaced NOTE Thoroughly clean the power key contacts on the circuit board before installing...

Страница 23: ...eaker gasket Inspect the rear speaker s connection to the circuit board If any of the contacts are dirty clean the contacts pins on the circuit board and replace the rear speaker If the connector pins...

Страница 24: ...If the SIM FPC assembly s portion of the connection is damaged replace it If the circuit board portion of the connection is damaged escalate to an electrical repair level If the issue is not been res...

Страница 25: ...e contacts pads on the circuit board and replace the vibrator If the vibrator s contact pads on the circuit board are damaged escalate to an electrical repair level If the contacts on the vibrator are...

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