Question about Dell Inspiron 6400 Notebook

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Lcd/monitor problem on dell 6400

When I try to set the background light on bright, my lcd light just turns off competley. It looks as though my computer was turned off, but the computer is still running as a matter or a fact if you hold a flaslight on the side of the screen you can see. If any body can hel please let me know what to do. I don´t know if it is a bad inverter, or a bad screen light but it is really anoying because I can´t use my computer unless I keep the lcd light at the lowest.

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  • 240 Answers

Try to connect your Laptop to a Monitor. If it works.

most of the cases that i worked like that is I replace the video card. send me the SERVICE TAG NUMBER so that I can help you.

Thanks,

Posted on Oct 09, 2008

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My dell inspiron 6400 won't start, red light then green light flashes ansd nothing happens, try to take out the battery and putting it back, no results, help


The following troubleshooting guidelines are basic troubleshooting steps. Battery Charging It is recommended to charge the battery while the system is off for faster charge times. Users may notice longer charge times when the system is powered on and running graphics extensive applications.
No POST If the system does not perform a Power On Self Test, there are various things to look for:
  1. Check to ensure that the system has a power light.
  2. If the system has no power light, ensure that it is plugged into AC power. Remove the battery.
  3. If the system has power but is not performing a POST, check to see if the keyboard status lights flash to indicate a successful POST, but no video, or that the keyboard status lights are lit in a sequence indicating a system problem.
bios_leds-1.jpg
  1. With the power off and the system unplugged, remove all CRUs from the system and reconnect that AC adapter to the system and try again.
  2. Run the On Board Diagnostics (OBD).
Video If the LCD on the system shows no display, or has other LCD problems, there are some basic steps to take:
  1. If the LCD is not displaying video or the video is garbled, run the BIST Test.
  2. If the LCD is not displaying any video, connect an external monitor to eliminate a no POST problem. A good image on the external monitor eliminates a video card problem or a POST problem.
  3. Connect an external monitor when possible for all LCD related problems, to help eliminate a software possibility or video card problem.
  4. If the LCD has extremely dim video, attempt to adjust the brightness or connect an AC adapter to eliminate a power management conservation setting set in the BIOS.
  5. If the LCD has lines on the screen, check the system during POST as well as system setup to verify if the lines are present in all modes of operation. Run the BIST Utility.
  6. If the LCD has color problems, run the BIST Utility.
  7. Run the On Board Diagnostics (OBD).

Jul 19, 2011 | Dell Inspiron 6400 Notebook

1 Answer

My Dell inspiron 1525 works fine on an external monitor, but when it come to it's LCD; it works with a very low light, I can hardly read what's displayed on it, I tried a working LCD from an other laptop,...


Try increasing the brightness of the system. Laptops have "Fn" combination buttons that allow you to use some shortcuts. Look for a button on the keyboard that usually looks like a sun or bright object with an arrow pointing up. Press and hold the "Fn" button down and press the designated button to increase brightness.

Hope this helps!

Sep 08, 2010 | Dell Inspiron 1525 Notebook

1 Answer

My laptop monitor goes dark


Hi there! Try this trick...

You can adjust the screen brightness within BIOS set up...

It works with Dell!!!

^_^

May 13, 2010 | Dell Inspiron 6400 Notebook

4 Answers

Dell Inspiron E1705 does not show any picture


First of all, check that the laptop is set to output video to the LCD. There should be a function key which will determine whether it is outputting video to the built-in LCD, the external monitor, or both. That should be holding down your "FN" key and hitting "F8." If it is on CRT ONLY, it should switch within 1-2 keypresses.

Secondly, take a good bright flashlight and shine it directly at the LCD panel from about 1-2 inches away. If you can actually see the graphics on the screen faintly in the background, your backlight is not turning on. The backlight is literally a bulb which lights up the screen, and they can burn out. It is repairable, and shouldn't cost more than $150.00 from a reputable repair shop.

Sep 01, 2009 | Dell Inspiron E1705 Notebook

1 Answer

Replaced LCD Inverter, now screen comes on and bright but choppy


Does the external monitor display a normal image?
If the images is OK then the video card is OK.
The inverter supplies high voltage to the CCFL lamp which provides the backlighing and does not jumble the colors on the screen. If you get a pinkish hue or a flashing screen then this would indicate
the CCFL lamp is faulty.
From the description of the fault, it indicates that the fault could be a faulty video cable or video connector. Try reseating the video cable/connector on the motherboard.

Jul 19, 2009 | Dell Inspiron 6400 Notebook

1 Answer

Run Diagnostics I got Error code 0322, Message 2000-0322 LCD Inverter unable modify Brightness.


You need to replace the LCD inverter; it is the small board that the LCD monitor plugs into and the inverter plugs into the motherboard. Here's one for $10. Oh, and please take a moment to give this solution a fixya rating. Thanks! :c)

Jan 14, 2009 | Dell Inspiron 6400 Notebook

2 Answers

Dell inspiron 6400 screen problem


I had the same problem. You need a new graphics card.

Jan 08, 2009 | Dell Inspiron 6000 Notebook

1 Answer

DELL inspiron 6400 laptop screen turned black


this sounds like a classic case of inverter problems, it could be just inverter coil thats gone which is an inexpensive repair, if it is the inverter then its a bit more.
try the Fn the F key that shows two tv screen icons, it may just have switched to external mode by accident

good luck

Nov 16, 2008 | Dell Inspiron 6400 Notebook

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