Question about Sony Ericsson K850i Mobile Phone

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Tah la My screen is blank. Keypad still emits light but screen is all BLANK! Even when i switched it off and on again, it's still blank!

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Change the lcd display..........

Posted on Jul 25, 2009

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When i switch my k850 on,it has a blank screen but the keypad is on and also at the back their is a blue light on.how can i solve this problem


My sony erricson k850i started giving problems a while back. during use the screen would go black but it didnt stop the general use of the phone, I could still sms or phone a number even though I couldnt see anything on the screen. Then my phone went of and never came back on again. I tried software upgrade, I did the whole remove battery and mem card thing I charged it over night etc, there is no responce from the phone at all exept for a red light that comes on deep inside the phone when charger is connected, only visible in the dark pls help

Jan 28, 2011 | Sony Ericsson K850i Mobile Phone

1 Answer

I turn the TV on. Then about 3 minutes later the picture goes out but the sound is fine. I turn the TV off, then back on. The picture returns only to cut off againg.This happens when viewing the in TV mode...


When picture goes away do you see the screen still emitting light or does it go completely blank?

Depending on the answer there are two possiblities:

if the screen goes completely blank then the problem is likely in the TV's inverter and more specifically very likely in some of the high-frequency transformers. Best solution there is replacement.
Unfortunately inverters are often on one board with power in smaller TVs.

if the screen is still emitting light albiet being blank then the problem is more likely in the main board and, less often, in a cable.

Main boards often overheat and ICs relying on soldering contact bonds of 1/10 sq.mm. start misbehaving in all kinds of ways , including like you describe.

There's no simple cure for that problem - usually it's cheaper to replace the whole board or even the whole TV than to troubleshoot it.

Perhaps not great news, but that's what I know about it.

Good luck!
Bobby
http://www.coppelltvrepair.com

Jan 23, 2010 | Toshiba 20HLV86 Television

1 Answer

Both screens totally blank


friend had this problem try pressing the screen down with ur finger (the inside screen)

Jul 17, 2009 | LG VOYAGER VX10000 Cellular Phone

1 Answer

I have an Acer AL1916W the power switch lights up brightly but when computer is switched on switch goes dull and and screen stays blank...Found two Capacitors that were bulging they were 220mf 25volt....I...


Hello,

Can you send me a picture of the boards in your monitor? We work on Acer units all the time.

Buddy
Corporate Computer
www.ccl-la.com
buddy@ccl-la.com
Over 21 years of PC and printer support/repair

Jun 28, 2009 | Acer AL1916W 19" WideScreen LCD Monitor

1 Answer

Screen goes bank after 2 seconds even if powder light is on


i just finished repairing a 20 inch acer monitor that had the same issue.... you have to take it apart and examine the power supply side of the monitor. there are capacitors that go bad on that board. you can tell be feeling the tops of them... the feel rounded. replace the capacitors and put it back together and it will work fine

Apr 16, 2009 | Computers & Internet

1 Answer

Blank screen


Remove the keep the battery out for 5 mins. Press the power button for 30 seconds without the battery to drain any charge on the main hardware.

Reseat the battery and turn on the phone.

Jan 26, 2009 | Sony Ericsson K800i Cellular Phone

2 Answers

Sony ericsson k850i screen is blank


my problem is wen im chargen it the screen is blank but the key pad lights up an the power button is red plz help me fix it

Jan 06, 2009 | Sony Ericsson K850i Mobile Phone

1 Answer

Nokia n95 8gb


i think after all that you should replaced the mainboard

Oct 20, 2008 | Nokia N95 Cellular Phone

1 Answer

How


You'll need a new phone. RAZRs die a lot, and they start their final journey this way - with smaller malfunctions that end up leading to death. Move your contacts to the SIM card if you get the phone to function again, and go get a new one soon. This one's on the way out.

Jul 15, 2008 | Motorola Mobility RAZR V3

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