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Sony Ericsson Hardware Repair Post here your Hardware Repairing Hints or Problems with SonyEricsson and Sony Phones. |
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11-28-2008, 12:00 | #1 (permalink) |
No Life Poster Join Date: May 2003 Location: POLAND
Posts: 1,262
Member: 27761 Status: Offline Thanks Meter: 55 | K850: LCD display problem; picture atteched. i have K850 water damaged. phone working OK but there are some problems with mainboard. i found one missed thing. i tried to make connection between that two solder points but after that step phone has got shortcirrcut and immediately power station display 0 volt of consumed power. i think it's not a fuse. i attached picture so please advice me what part is missing there. maybe same parts are located at left connector which is near that one. |
The Following 3 Users Say Thank You to PSG For This Useful Post: |
11-29-2008, 01:31 | #2 (permalink) | |
No Life Poster Join Date: Mar 2006 Location: pakistan Age: 71
Posts: 3,609
Member: 241039 Status: Offline Thanks Meter: 4,170 | Quote:
Rashid Ahmed Nadeem | |
11-29-2008, 22:52 | #4 (permalink) | |
No Life Poster Join Date: Mar 2006 Location: pakistan Age: 71
Posts: 3,609
Member: 241039 Status: Offline Thanks Meter: 4,170 | Quote:
Rashid Ahmed Nadeem | |
The Following User Says Thank You to r a nadeem For This Useful Post: |
11-30-2008, 20:40 | #5 (permalink) |
No Life Poster Join Date: May 2003 Location: POLAND
Posts: 1,262
Member: 27761 Status: Offline Thanks Meter: 55 | i check all steps in 'display illumination problems" section of service manual. and here it's: i don't have LCD backlights i have 3.8V at MP 26 but when i press button to activate backlight i don't have 15V at mp 26 but i have 3,8V at MP 49 so i think i should replace V4200(manual steps) questions: 1) i don't have new v4200 could you tell where i will find that v4200? which SE phones has got same v4200? 2) is it right thinking: v4200 operate only with backlight so i should see things on LCD but without backlight only, or when v4200 is damage i will not see anything like now? |
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