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Trouble Shooting Guide, Mechanical
Applicable for D750
Contents
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
4/000 21-1/FEA 209 544/95 A
©
Sony Ericsson Mobile Communications AB
General ...........................................................................................2
1.1.
Service functions in the software ....................................2
1.2.
Misuse and other no warranty issues .............................3
Appearance Problems ....................................................................6
Network/Signal Problems ...............................................................9
On/Off Problems ...........................................................................10
Audio Problems ............................................................................12
Key Problems ...............................................................................16
Display Problems..........................................................................19
Illumination Problems ...................................................................21
Alert Problems ..............................................................................23
SIM Problems ...............................................................................25
Charging/Capacity Problems ........................................................26
Camera Problems.........................................................................27
Data Communication Problems ....................................................30
Hands-Free Problems...................................................................32
Software Problems .......................................................................32
Revision History............................................................................33
Trouble Shooting Guide, Mechanical
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Table of Contents
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Summary of Contents for Sony Ericsson D750
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Page 1: Table Of Contents
Key Problems ................16 Display Problems................19 Illumination Problems ..............21 Alert Problems ................23 SIM Problems ................25 Charging/Capacity Problems ............26 Camera Problems.................27 Data Communication Problems ............30 Hands-Free Problems..............32 Software Problems ...............32 Revision History................33 4/000 21-1/FEA 209 544/95 A © Sony Ericsson Mobile Communications AB... -
Page 2: General
Flash LED Memory Stick 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. 4/000 21-1/FEA 209 544/95 A 2(33) © Sony Ericsson Mobile Communications AB... -
Page 3: Misuse And Other No Warranty Issues
Mark after drop to misuse. drop. the PCB. Corrosion components on the PCB. Corrosion components on the PCB. SIM reader damaged by liquid. System connector damaged by liquid 4/000 21-1/FEA 209 544/95 A 3(33) © Sony Ericsson Mobile Communications AB... - Page 4 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) and it is possible to see it without disassemble the phone. Fig. 1.2.1 4/000 21-1/FEA 209 544/95 A 4(33) © Sony Ericsson Mobile Communications AB...
- Page 5 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. 4/000 21-1/FEA 209 544/95 A 5(33) © Sony Ericsson Mobile Communications AB...
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Page 6: Appearance Problems
Joystick button Frame assembly NOTE: Misuse is not covered by warranty. IRDA window Refer to chapter 1.2 Memory card rubber lid Antenna cover assembly Battery cover assembly Co-brand inlay 4/000 21-1/FEA 209 544/95 A 6(33) © Sony Ericsson Mobile Communications AB... - Page 7 If unacceptably scratched or damaged – On/Off key Replace damaged parts as necessary. Music key Volume key Camera key NOTE: Misuse is not covered by warranty. Refer to chapter 1.2 4/000 21-1/FEA 209 544/95 A 7(33) © Sony Ericsson Mobile Communications AB...
- Page 8 Trouble Shooting Guide, Mechanical Problem Area Items to Check Repair Action Reference Image • Visually inspect for improper gap between Reassemble or replace damaged parts as seams necessary. 4/000 21-1/FEA 209 544/95 A 8(33) © Sony Ericsson Mobile Communications AB...
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Page 9: Network/Signal Problems
If damaged – Send to an electrical repair location. • Visually inspect antenna contact pads If dirty or oxidized – Clean the pads and replace the antenna assembly. 4/000 21-1/FEA 209 544/95 A 9(33) © Sony Ericsson Mobile Communications AB... -
Page 10: On/Off Problems
Power On problems seconds after pressing the power key and detected, refer to the “Display Problems” whether the keypad illuminates section Before proceeding ! • Perform a flash upgrade. 4/000 21-1/FEA 209 544/95 A 10(33) © Sony Ericsson Mobile Communications AB... - Page 11 • Visually inspect the power key If damaged – Replace it. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/95 A 11(33) © Sony Ericsson Mobile Communications AB...
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Page 12: Audio Problems
If the issue has not been resolved ! Handle the unit according to local directives. Before proceeding ! • Speaker: Perform a flash upgrade and a setting reset. No sound or poor 4/000 21-1/FEA 209 544/95 A 12(33) © Sony Ericsson Mobile Communications AB... - Page 13 Visually inspect speaker’s dust cloth If dirty or damaged – Replace front cover. • Visually inspect the speaker’s contact pads If dirty or oxidized- Clean pads. on the PCB 4/000 21-1/FEA 209 544/95 A 13(33) © Sony Ericsson Mobile Communications AB...
- Page 14 Perform a flash upgrade and a setting reset. No sound or poor • quality sound Visually inspect speaker’s external port If clogged – Clean or replace antenna cover. 4/000 21-1/FEA 209 544/95 A 14(33) © Sony Ericsson Mobile Communications AB...
- Page 15 • If the issue has not been resolved ! Replace speaker box. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/95 A 15(33) © Sony Ericsson Mobile Communications AB...
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Page 16: Key Problems
NOTE: Camera switch is located on the keyboard foil. NOTE: Camera switch is a dual switch. 4/000 21-1/FEA 209 544/95 A 16(33) © Sony Ericsson Mobile Communications AB... - Page 17 If the issue has not been resolved ! • Handle the unit according to local directives. • Joystick: Visually inspect the joystick button If dirty or damaged – Replace it. 4/000 21-1/FEA 209 544/95 A 17(33) © Sony Ericsson Mobile Communications AB...
- Page 18 If damaged - Replace keys as necessary. Volume keys Music key Camera key On/Off key If the issue has not been resolved ! • Handle the unit according to local directives. 4/000 21-1/FEA 209 544/95 A 18(33) © Sony Ericsson Mobile Communications AB...
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Page 19: Display Problems
Perform a flash upgrade and a setting reset. • Visually inspect whether the LCD flex film If improperly connected – Re-establish is properly connected to its connector on proper connection. the PCB 4/000 21-1/FEA 209 544/95 A 19(33) © Sony Ericsson Mobile Communications AB... - Page 20 Trouble Shooting Guide, Mechanical Problem Area Repair Action Items to Check Reference Image • If the issue has not been resolved ! Replace the LCD. 4/000 21-1/FEA 209 544/95 A 20(33) © Sony Ericsson Mobile Communications AB...
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Page 21: Illumination Problems
• If the issue has not been resolved ! Handle the unit according to local directives. • Before proceeding ! Perform a flash upgrade and a setting reset. 4/000 21-1/FEA 209 544/95 A 21(33) © Sony Ericsson Mobile Communications AB... - Page 22 PCB • If issue has not been resolved ! Replace the LCD. If the issue has not been resolved ! • Handle the unit according to local directives. 4/000 21-1/FEA 209 544/95 A 22(33) © Sony Ericsson Mobile Communications AB...
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Page 23: Alert Problems
Visually inspect the vibrator If dirty or oxidized – Replace it. • If damaged - Replace it. • Before proceeding ! Poly.-Speaker: Perform a flash upgrade and a setting reset. 4/000 21-1/FEA 209 544/95 A 23(33) © Sony Ericsson Mobile Communications AB... - Page 24 Visually inspect the speaker’s dust cloth If dirty or damaged - Replace antenna cover. • Visually inspect the speaker’s contact If dirty or oxidized- Clean pads. pads on the PCB 4/000 21-1/FEA 209 544/95 A 24(33) © Sony Ericsson Mobile Communications AB...
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Page 25: Sim Problems
SIM is carrier’s SIM is being used inserted (Insert correct SIM) If the issue has not been resolved ! • Handle the unit according to local directives. 4/000 21-1/FEA 209 544/95 A 25(33) © Sony Ericsson Mobile Communications AB... -
Page 26: Charging/Capacity Problems
If damaged – Send to an electrical repair location. • Visually inspect the system connector If dirty or oxidized – Replace the system connector. • If damaged – Replace the system connector. 4/000 21-1/FEA 209 544/95 A 26(33) © Sony Ericsson Mobile Communications AB... -
Page 27: Camera Problems
• Lines, marks, Visually inspect the camera lens If dirty – Clean camera lens. blurred or • If scratched or damaged – Replace the camera discolored picture module. 4/000 21-1/FEA 209 544/95 A 27(33) © Sony Ericsson Mobile Communications AB... - Page 28 • Visually inspect whether the keyboard If improperly connected – Re-establish proper foil is properly connected to its connection. connector on the circuit board 4/000 21-1/FEA 209 544/95 A 28(33) © Sony Ericsson Mobile Communications AB...
- Page 29 If the issue has not been resolved ! • Replace the keyboard foil if it has not already been replaced. If the issue has not been resolved ! • Replace camera module. 4/000 21-1/FEA 209 544/95 A 29(33) © Sony Ericsson Mobile Communications AB...
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Page 30: Data Communication Problems
Will not connect Visually inspect the IRDA window for If dirty – Clean it. with a functional dirt, scratches, and damage • If damaged – Replace it. IR device 4/000 21-1/FEA 209 544/95 A 30(33) © Sony Ericsson Mobile Communications AB... - Page 31 If dirty or oxidized – Replace it. • If damaged – Replace it. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/95 A 31(33) © Sony Ericsson Mobile Communications AB...
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Page 32: Hands-Free Problems
Note: Do a SW upgrade before sending the unit to a higher level. Do not scrap a phone that hasn’t been upgraded. If the failure still occurs, handle the unit according to the local directives. 4/000 21-1/FEA 209 544/95 A 32(33) © Sony Ericsson Mobile Communications AB... -
Page 33: Revision History
Trouble Shooting Guide, Mechanical 16 Revision History Rev. Date Changes / Comments 2005-05-13 First draft 4/000 21-1/FEA 209 544/95 A 33(33) © Sony Ericsson Mobile Communications AB...