Question about Gateway Computers & Internet

1 Answer

Gateway 400sd4 Laptop

Hi There, I have a Gateway 400sd4 with no display on LCD screen it has backlight.I get perfect video on an external monitor.I have installed a ''known good'' LCD screen with no change.I have toggled the outputs between internal,external & both.That works correctly & I am able to brighten & dim the backlight. Is it time to condem the system board? Is this a ''repairable''problem with the system board?
Thanks

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 8,619 Answers

Hi

This is problem related to the video card/video adapter on your PC. You'll need to get the video card replaced. Your Gateway 400sd4 laptop uses ATI M6P Graphics Card, and to correct the issue you'll need to replace the lcd inverter. However replacing the lcd inverter is not suggested as it can again turn bad due to a faulty motherboard, so, i'll suggest you to buy a new motherboard.

You can buy the motherboard for your gateway laptop 400sd4 from this link--

Gateway 400SD4 Laptop Motherboard


Please do accept this solution and revert for further assistance.

Thanks
Rylee

Posted on Jul 03, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Screen on ma2a gateway doesn't turn on. Is it the video card?


Borrow a monitor and plug it into the VGA port. That might tell you whether the graphics card is bad.

Nov 10, 2013 | Computers & Internet

1 Answer

Laptop, display problem


Hi,
Dear User..Does the Screen have a displayed Image?

If the laptop has no image at all it can be video card or LCD cable or the LCD panel. About the only non-invasive test you can try is to plug an external monitor into the laptop. This will determine if the problem is motherboard/graphics card or lcd cable/lcd screen. If you have an image on the external monitor then its likely to be lcd/cable/lcd screen.

Is the Displayed Image Faint?

A dim screen can be caused by three things;

1/ The LCD inverter which runs the LCD backlighting

2/ The CCFL backlighting fluro tube in the LCD panel

3/ The motherboard supplying signal & voltage to the inverter.

Thanks

Jan 30, 2013 | Computers & Internet

1 Answer

My laptop screen went very dark, I can barely make out whats on the screen but I know its working. What can I do to fix this situation on my gateway p-6860fx pc notebook?


Hi josue fernan...
You need to see if your laptop lcd screen is faulty and/or the lcd inverer is faulty.
1....Test the lcd screen:
Hook your laptop to an outside monitor and then start your laptop normally...if the picture on the external monitor is good, then your lcd screen is bad.
2....Backlight Faulty: If the monitor is still as dark like your lcd screen on the laptop then it could be the backlight that is faulty.
Please take time to rate me thumbs up
*****************************************************************************************************************
LCD Backlight and Screen Replacements:
http://www.laptopsman.info/0-Gateway-lcd-1.html

LCD Screen replacement:
http://www.screentekinc.com/Gateway_P-6860FX--17-inch--1440x900-wxgaplus-laptop-lcd-screen.shtml

Sep 11, 2011 | Gateway P-6860FX Notebook

1 Answer

I don't have video on my 400sd4 laptop


If the system is booting up completely and you can hear is starting up then the problem is limited to your video.
First try this
Boot up your system so that it's in windows (listen for start sounds and windows music etc)
once you believe the system is fully booted press and hold the FN key. While holding FN press and release the F3 key one time and then let go of FN. Wait a few second and see if the LCD screen comes on. If it does not try FN-F3 a couple more time, waiting a few second in between.
If that does not work then try plugging in and external monitor to verify that the system is working otherwise. If the external monitor does not come on right away then press Fn-F3 again with it attached to allow the system to send a signal to the external port.
If it works on the external monitor but cannot come on the LCD screen, the that indicates a problen inside your laptop or LCD screen.

Dec 03, 2009 | Gateway 400SD4 Notebook

3 Answers

Hi my screen has gone blank on my laptop advent 5431 any ideas


I have gateway mx7118 and my screen went dim when power on. I connected to a external monitor and no pic on the monitor.
Could the problem be I need to replace the LCD invertor?

Nov 29, 2009 | Acer Aspire 4720 Notebook

1 Answer

Power stays on but screen goes black on my Gateway laptop.


If the laptop appears to boot up and the hard disk LED flashes then you have a backlight problem.

You may have a defective CCFL backlight, it may have the following symptom: Screen flashes on and off or displays reddish pink hue. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickers on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replace the CCFL lamp.
To determine if the video card or the LCD is faulty, connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight. It could be a faulty inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out; usually the CCFL lamp fails before the inverter.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out LCD Parts for service, parts, and DIY info Use this link to their WEB site: -
www.ladparts.net

Nov 22, 2009 | Gateway 450ROG Notebook

2 Answers

I have a Dell laptop D505. The laptop powers up but the screen display is very dim. I can't see the image on the monitor. I've tried to manually increase the color/brightness button and nothing changes. ...


Sounds like your inverter or your backlight is failing. The inverter is an easy repair, the backlight can be replaced but it involves taking the LCD panel apart, The backlight comes installed on new screens. I can include a service manual below and possibly a generic guide to backlight replacement....

http://support.dell.com/support/edocs/systems/latd505/sm/display.htm#1052500

http://www.laptoprepair101.com/laptop/2007/01/31/replace-screen-inverter-fix-backlight/

Sep 23, 2009 | Dell Latitude D505 Notebook

1 Answer

My Gateway mx7118 lcd flickers whenever screen is opened,closed,


Connect an external monitor to the laptop and power it up, if you see a clear image on an external monitor, this means your video card is OK.

If you see a dim image or flicking image on the laptop's LCD screen it means you have a backlight problem.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

Mar 13, 2009 | Gateway MX7118 Notebook

1 Answer

No display


The LCD backlight is most likely faulty. If you look at the LCD screen to one side you could see a slight video image, provided the video card is working. To check if the video card is working connect the laptop's video output connector to an external monitor and then boot up your laptop. If you get an image on the monitor, then the problem is with the laptop's LCD display.
As I stated it could be the backlight or a faulty invertot that powers the backlight or it could be the cable/s that connects the LCD to the motherboard.
Try reseating these cables (requires dismantling the laptop).
If this doesn't work then you have a faulty LCD and needs to be replaced. Alternately if cost is too expensive, just use the laptop with an external monitor.

Jan 20, 2009 | Dell Inspiron 1501 Notebook

2 Answers

Gateway 400sd4


You should try plugging in an external CRT or LCD monitor. Most laptops will automatically enable this port when you connect a monitor and reboot, but you may need to hit some combination of keys on the laptop if you don't see anything.

You should try this to see if the laptop is running properly other than the internal LCD or VGA hardware.

Dec 16, 2007 | Gateway 400SD4 Notebook

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

88 people viewed this question

Ask a Question

Usually answered in minutes!

Top Gateway Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18391 Answers

Prashant M
Prashant M

Level 3 Expert

2260 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1066 Answers

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

Answer questions

Manuals & User Guides

Loading...