Question about Sony Ericsson W850i Cellular Phone

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Backlight or lcd problem

The time i scroll or get into the menu on my phone, it goes blackout but if im going to use some light or flashlight the LCD part i noticed that LCD is functioning sad to say its hard to see without the aid of a flashlight. please help me to my problem coz its my dream phone and its almost two months since i brought this. Thank you very much.

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Replacing lcd will not solve the problem i have tried it

Posted on Dec 15, 2009

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Hi. It sounds like the backlight of the LCD has failed. If you replace the LCD screen that'll solve the problem. See http://www.formymobile.co.uk/proddetail.php?prod=w850lcd

Posted on Nov 15, 2008

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1 Answer

Has sound, but why no backlight?


This will get you started on your troubleshooting journey.
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If you have an LED you might have better luck getting a new TV :(

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I'm sure you know that you can attach an external monitor to your laptop and hit the FN key and hold it while you hit the correct F1 thru F8 key that will display the image on the external monitor? This could be a solution until you get the inverter fixed.

Now a dishonest repairman will take advantage of you if you take that laptop to them talking about the backlight is going bad. He'll simply bill you $300 and tell you he had to replace the LCD Screen which houses the back light an most times it's easier to replace the screen then fool with the backlight. And in your case all he would do is replace the lcd inverter that sits under the lcd screen and is covered by the strip at the bottom that goes around the lcd screen.

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Hi,
Welcome to Fixya. If the mp3 player is still playing the audio, it means that the mp3 is working fine. The problem that you have is that the LCD or the display of the Mp3 is bad. You can check the warranty of the device so that so can send it to repair or replacement free of charge,
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1 Answer

The picture appears for 10 seconds and after that it goes blackout but i can hear the sound.


You have a problem with either the inverter which drives the screen or the backlights in the LCD panel. A new inverter board may cure the problem but more likely the trouble are the backlights failing in which case a new LCD screen is required unfortunately.

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With the screen connected to the pc (which is running and putting out a signal) hold a bright light to the front of the lcd - a led flashlight works well. Do you see an image? If so then circuitry driving the inverter backlights may be at fault. I had this happen with a Dell Flat Screen, and found one of a pair of transistors which drives the backlight had developed a short.

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1 Answer

Backlight


is it that the back light goes off and on or check you lcd display settings and see how you have it set to.

Oct 26, 2008 | Sony Ericsson W850i Cellular Phone

1 Answer

Sony KDL-32ML130 lcd tv


Not really that tough. Sounds as though the backlight is shutting down, either from a power supply failure, or a failure of the backlight circuit itself. You can verify this by holding a flashlight to the screen in the area where the menu usually appears to see if it displayed on the LCD panel with no backlight. If you can faintly see the menu displayed, your backlight has shut down and the most likely cause is the backlight inverter board, followed by the power supply and the backlights themselves which are part of the LCD panel. If you found this information answered your questions, please be sure to rate it. Thanks!

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4 Answers

Nokia1600 repairing


hi there sir must go to your nearest service center to replace your LCD it must be damage already. the light of that phone was built-in to the LCD display. and that is why also your keypad doesn't have light cuz' it is series to the display light.


ok!
peace!

Mar 30, 2008 | Nokia 1600 Cellular Phone

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