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Black Screen My CISNet C-28 PC powers on but black screen. Tried other video card but nothing. There's a red light displayed on the unit front panel. Can anyone tell me what that means? Running Win XP SP3 384mb ram

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Its your motherboard its failed i would recomend a motherboard replacment hope this helps

Posted on Jul 12, 2010

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I own a C ISNET CI-3003X and it has a red light


It could be a defective or dirty video card. But in the some cases, where built-in graphics is used (no video card, built-in to motherboard) it is the memory (RAM) that is causing the problem.

Try removing your video card (if you have any) or memory from the board.

Video card removal instructions: http://bit.ly/1m0jwb3
Memory removal instructions: http://bit.ly/1s5svYr

Clean the pins (gold contacts) with a rubber pencil eraser. Install the memory or the video card back to the board & power-on. If this doesn't work, replace the defective unit.

You may also try cleaning the internals of the computer using a non-static brush & a can of compressed air.

May 07, 2014 | ZT Group Cisnet PC Desktop

1 Answer

Screen is black


If you're getting just a flashing cursor on a black screen it's probably a motherboard/video card/hard disk problem (probably motherboard).

If there's not even a flashing cursor - just a black screen - you can add a failed power unit to your list of problems.

The easiest way to check is to borrow a power unit and video card from a friend's computer. There's no need to remove your existing power unit. Simply disconnect the power cables from the motherboard and connect the spare power unit in its place.

If your computer powers up it is obviously a faulty power unit to blame. IIf there's still nothing on the screen, power down the computer and replace the video card with the spare one. If there's still nothing on the screen when you power it up then in all probability your motherboard is history

Nov 29, 2013 | HP Computers & Internet

1 Answer

Acer Aspire 4930 not starting.... only black screen


Hook a spare monitor to the video output, usually on the back, if picture okay! the LCD screen on the laptop has a bad inverter board or the backlight behind the screen has failed. But if both show the same symptom the Video Graphics Card is bad usually built into the motherboard.

Mar 21, 2012 | Acer Aspire 4930-6862 Laptop

1 Answer

Sony KDL-40Z4100 standby light solid red, orange blinks every 4 sec, What part may have gone bad?


The red stand by indicates the set is in PC stand by the blinking orange timer is indicating the timer has been set or has an issue

Mar 13, 2012 | Sony Bravia KDL-40V4100 40 in. LCD HDTV

1 Answer

When i turn the notebook on i can see nothing blank black screen


Sounds like one of two issues,

1. You have the internal display turned off. When you turn the laptop on you should hear a single beep. Do you see the Sony Logo during bootup? Have you tried to turn the display back on? Try pressing the Fn+F7, or Fn+F8, key combination. There are only three modes and these key combinations allow you to cycle through these modes. Either the Primary Screen is on, or the External Screen is on, or both are on.

2. You may have a bad video card or the screen is dead. When you power up the laptop, can you see a glow, but the screen is black? Can you see the Bootup Screen with the Sony Logo, but barely? Have you tried to connect an external monitor to the laptop to see if the video card is working? If you get video to the external monitor, the video card is working. If you don't, then the video card may be bad. If you are getting video on the external monitor, try using the key combinations listed above and try to cycle through your Internal/External display modes.If nothing shows up on the laptop display then the LCD screen may be bad. It could be the back light. Those are internal to the LCD. That means you will have to replace the entire LCD display on the laptop.

Hope that helps.

Nov 07, 2010 | Sony VAIO GRZ610 Notebook

2 Answers

CCFL OK but no display


LCD panel. i have several Toshiba laptop with bad LCD.

Nov 04, 2009 | Toshiba Satellite LP154W01 Notebook

1 Answer

A135s2276 screen is black.


Chances are the video card is bad if the display is black and the external monitor isn't showing anything as well.

Oct 07, 2009 | Toshiba Satellite A135-S2276 Notebook

1 Answer

Computer would not boot up, only showed red light


I'd say power supply first.

If you have an expansion slot filled with a video card, remove the video card (provided you have onboard video connector as well) then try to reboot. I just went through similar issues with an GForce video card, it went bad, but the machine appeared to boot althugh I couldn't see the screen. Removed the card & it came up using minimal VGA drivers provide with WinXP.

Obviously you cannot check the video driver if you're not booting up...and seeing the screen.

Find a buddy with a regular monitor and hook it up and try to boot. Dell monitors sometimes require their propietary drivers, so write down the model when you take your pc to a friend's place, and DL the driver and install it (provided you got it to boot up)

Brad

Feb 14, 2009 | ZT Group Cisnet PC Desktop

1 Answer

POWER TURNS ON BUT SCREEN DOES NOT


Try Holding The Screen Up to A Bright Light And Look at it from an angle to see if you can see windows running without the light.... If you can..... The Problem Is Either Your LCD Bulb (needs Replacing) or It's the Power Inverter....

If.. You See No OS Running .. Just Black You Could Need Either A New Display ... or your Video Card/Chip is Shot...
Try Connecting an external Monitor if able to..... If It SHows Up On An External Monitor then Your Video Card/CHip is Good..

If You Get No Display, But The Black Screen Lights Up.... It Is Either The Display Cable Or The Display Panel Itself....

Nov 17, 2008 | Sony VAIO PCG-K23 Notebook

1 Answer

Sharp LL T17A4-B (Black) 17 in.


Are you using the digital connection?? If so try using both the analog and digital connection then set the digital as the Main monitor in your graphics card interface. To check if the backlight is out, darken the room, and light a flash light into the screen. If you can see a picture, then you need to replace the backlight. Good luck

May 03, 2006 | Sharp LL T17A4-B 17" Flat Panel LCD...

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