Question about Sony VAIO PCG-K23 Notebook

1 Answer

Screen light off

Oh dear. I know we're talking about a black screen here so I'll try to be as detailed as possible. Here is the problem: Computer turns on. Vaio display lights up like it's supposed to. Then a screen with a blinking "_" shows up, like it's going to write a script, and then the light of the screen goes off. After this, you can see my computer thinking and booting through the little orange CPU light. Then the three caps, number lock, scroll lock buttons flash. Then my computer boots up with the screen light still off. Pretty Windows sound...and we're at this darkened desktop as if it's on minimal battery settings. What I've tried: Funny thing about this is you can still see all the activity on the screen if you look at the screen at the right angle. I can see spy sweeper...and my AVG updates. If I hit Windows on the keyboard I can bring up the menu. The light is just off, almost as if my battery has been unplugged...only my battery is in. I have tried adjusting my power management options, I have tried increasing the brightness, I have tried waiting patiently. I have tried restarting in safe mode and other modes. I have tried to see if there were any other refresh rate options...but i'm locked into 60 hz. What sometimes fixes it: One thing I've noticed that may trigger this behavior is not having my computer plugged in when I turn on my computer. If I turn on my computer without having it initially plugged in, even if I plug my computer in later after booting, the screen will still be dark. Once in a while, my screen will light up again if I switch the outlet that I'm using to plug my computer in. What outlet I switch it to seems to be arbitrary. It's just the act of switching outlets that seems to do the trick. Last week after I had gotten the light to work, I would work a little while on my word processor and the light would go out for about a minute, then turn back on. I'm really worried this is a hardware problem. I've done everything I can with the settings. I would appreciate any help I can get.

Posted by Angela Thomas on


1 Answer


  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 2,985 Answers

Back light has failed or the inverter or connector come loose. A repair shop job, unless you are up to taking it apart to check the inverter connector from screen to body of the computer Is it exposed or concealed in the hinge? If exposed try a little wiggle. But repair shop I reckon

Posted on May 28, 2007


Add Your Answer


Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:


Samsung ln32a330J1D LED TV has black screen. Unit has standby light, will power on and emits normal beeps, but screen is black.

Sounds like the firmware is corrupted. Try after an update. If you wish to get some details; check the site linked here. Pull up older posts.
faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.


this one?
Lock the Screen
  1. Press the Power key until the screen turns off
  2. (Note:Samsung (SG 111) Logo/images/Pictures has a respective copyright. I used it for demonstration purpose only.
    If something in your mind to comment or suggest, please let us know. In our efforts to provide detailed information, there is possibility of inaccurate contents. If you see any mistake or incomplete in our information, please don't hesitate to tell us. We will fix it immediately as soon as possible.

Screen went black

is there any light emitting from the device at all? (turn off light and see if the screen is showing light)

if it is, check your brightness settings on the device

if there is no light it is possible that the backlight burnt out, or that there are settings that need to be adjusted on the device. It is also possible that you downloaded an app that doesnt work properly with your device.

if none of this seems to be whats wrong, more information would be nice:

1) what model of tablet are you using?
2) what version of android OS?
3) what app were you trying to install?

From there you'll be able to get more help if needed.

My env2 is like broken.

the black screen with the rainbow is a clear indicator that you've cracked the internal screen.
Not fixable unless you replace the screen.

Mogul Screen black

Press the soft reset button located right under the SD mini memory card its a small hole just press there with your stylus (pen)

Have a weird problem M50WH74S RCA

i found out tht it could be the (DMD) Digital_Micromirror_Device i dont know if that is you problem or not

Psp doesn't turn on

Oh you have the famous black screen of psp, the black is screen in some cases means death but this problem have 2 solutions no more. First if you do a backup of your nand restore it. Second use the memory stick magic and the battery pandora to restore your files default. If you have no idea what i'm talking about contact me. I'm from guatemala i will help you with the process



Please let me know the problem in detail.
Not finding what you are looking for?
Sony VAIO PCG-K23 Notebook Logo


Ask a Question

Usually answered in minutes!

Top Sony Computers & Internet Experts


Level 3 Expert

13435 Answers

Mehandi Husain ...

Level 3 Expert

1654 Answers

Cindy Wells

Level 3 Expert

6409 Answers

Are you a Sony Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides