Trobleshooting_Guide.PDF

Trouble Shooting Guide, Mechanical

Applicable for W600i, W600c, W550i, and W550c

Contents

General.................................................................................................................................................................... 2

Power Problems ...................................................................................................................................................... 4

Audio Problems ...................................................................................................................................................... 6

Microphone: .................................................................................................................................................. 6

Receiver: ....................................................................................................................................................... 6

Rear Base Speaker: ....................................................................................................................................... 8

Side Base Speaker: ........................................................................................................................................ 9

Key Problems........................................................................................................................................................ 10

Base Keypad: .............................................................................................................................................. 10

Flip Keypad:................................................................................................................................................ 11

Gaming keys: .............................................................................................................................................. 12

Music Player Key:....................................................................................................................................... 12

Volume keys: .............................................................................................................................................. 13

Camera key: ................................................................................................................................................ 13

SIM Problems ....................................................................................................................................................... 14

IR Problems .......................................................................................................................................................... 15

Hands-Free Problems............................................................................................................................................ 15

Display Problems .................................................................................................................................................. 16

Data Communication Problems ............................................................................................................................ 18

Illumination Problems........................................................................................................................................... 18

Base Keypad: .............................................................................................................................................. 18

Flip Keypad (Navigation Keypad): ............................................................................................................. 19

Gaming Key: ............................................................................................................................................... 19

Display: ....................................................................................................................................................... 20

Alert Problems ...................................................................................................................................................... 22

Vibrator: ...................................................................................................................................................... 22

Rear Base Speaker: ..................................................................................................................................... 22

Side Base Speaker: ...................................................................................................................................... 24

4/000 21-1/FEA 209 544/594 A

Company Internal © Sony Ericsson Mobile Communications AB

Network/Signal Problems ....................................................................................................................................... 2

Trouble Shooting Guide , Mechanical

Charging/Capacity Problems ................................................................................................................................ 25

Camera Problems .................................................................................................................................................. 26

Bluetooth Problems............................................................................................................................................... 27

Revision History ................................................................................................................................................... 28

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 unit, 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 the Mechanical Test Instructions for details regarding inspecting for liquid damage and upgrading software.

NOTE! If all of the repair actions listed in this document for addressing a problem have been preformed and a unit still is not working,

handle the unit according to your local company directives.

2 Network/Signal Problems

Problem Area

Items to Check

Repair Action

Reference Image

No Signal or Poor

Signal

Inspect SIM holder

• If dirty or oxidized – Clean

• If damaged – Send to an electrical

repair location

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Trouble Shooting Guide , Mechanical

Problem Area

Items to Check

Repair Action

Reference Image

No Signal or Poor

Signal (Cont.)

Inspect antenna-to-board connector

• If dirty or oxidized – Clean the

antenna-to-board connector and

replace the antenna assembly

• If damaged – Send to an electrical

repair location

Inspect external RF connector

• If dirty or oxidized – Clean the

external RF connector

• If damaged – Send to an electrical

repair location

If the issue has not been resolved ã

• Replace the antenna assembly if it

has not been replaced

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Trouble Shooting Guide , Mechanical

3 Power Problems

Problem Area

Items to Check

Repair Action

Reference Image

Unit will not Power

With the phone in the open position,

check whether the main keypad

illuminates 5 to 10 seconds after pressing

the power key

• If illumination of the keypad is

detected, refer to the “Display

Problems” section

Visually inspect contact pads on battery • If dirty or oxidized – Clean the pads

• If damaged – Replace the battery

Visually inspect battery connector

• If dirty or oxidized – Clean

• If damaged – Send to an electrical

repair location

Visually inspect the power key for debris

or damage

• If dirty – Clean

• If damaged – Replace the power key

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Trouble Shooting Guide , Mechanical

Problem Area

Items to Check

Repair Action

Reference Image

Unit will not Power

On (Cont.)

Visually inspect the power switch

portion of the display flex film

• If dirty – Clean the power switch

• If damaged – Replace the display

flex film

Visually inspect the cable assemblies and

their mating connectors on the display

flex film and the circuit board

• If any of the four cable connections

are improperly connected -

Reestablish a proper connection

• If any portion of the four cable

connections are dirty - Replace both

cables and clean the mating portions

of the cable connections that are on

the display flex film and the circuit

board

• If a cable assembly is damaged –

Replace both cable assemblies

• If a cable connector on the display

flex film is damaged – Replace the

display flex film

• If a cable connector on the circuit

board is damaged – Send to an

electrical repair location

If the issue has not been resolved ã

• Replace the power key, the display

flex film, and both cable assemblies,

if they have not already been

replaced

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