Question about Dell Dimension 4600 PC Desktop

1 Answer

Screen Not Staying On

The monitor was not staying on.
I replaced the cable.
Information the screen, but the Monitor is not staying on.
When I toggle the Monitor on and off button, I see the screen saver is working.
Then the screen goes blank again

Posted by on

  • Anthony Browne Apr 17, 2009

    The monitor is NOT staying on long enough for me to read instructions.

    I am seeing auto adjust in progress.




  • Anthony Browne Apr 17, 2009

    Taran,

    Are you still with me?

    TonyBrowne


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Hi TontBrowne,
I'm not sure exactly what causes this problem. However it seems that lowering the 'Brightness' and 'Contrast' fixes things. The problem is, you can't see the menu without the backlight. However, try this, as it worked for me:
Have monitor turned on and plugged into computer. Boot up the computer so that a signal is being sent to the monitor. My monitor would flicker to life everytime there was a resolution or refresh rate change. But then the backlight goes out and the screen goes black after only a couple seconds. The 'green' power light was still on, just the screen was black. You can only get to the menus when a signal is being sent from the computer to the monitor, so it needs to be on. For my monitor the brightness needs to be at 60 or below for the backlight to stay on. The default factory settings are too high for my montior as they are above those numbers. Once your computer is all booted up, you can change the monitor settings.
Notice you have four buttons on the bottom of the unit: ( - ) Menu ( - ) minus ( + ) plus ( 0 ) power Hit these buttons in order to lower the 'Brightness' and 'Contrast': Press ( - ) minus -- enters 'Brightness' and 'Contrast' menu Press ( - ) minus -- moves hightlighted option down to 'Brightness' Press ( - ) Menu -- selects 'brightness' as option to change Press ( - ) minus several times -- each press moves the brightness down 1-100. Press ( - ) Menu -- sets the new level. Press ( - ) minus -- moves hightlighted option down to 'contrast' Press ( - ) Menu -- selects 'contrast' as option to change Press ( - ) minus several times -- each press moves the contrast down 1-100. Press ( - ) Menu -- sets the new level. Press ( - ) minus -- moves hightlighted option down to 'Exit' Press ( - ) Menu -- selects to exit the menu. Press ( 0 ) power -- turn off monitor Press ( 0 ) power -- turn on monitor The monitor stayed on for me after this. I lowered the numbers much lower than 60 at first. Then raised them slowly back up once I could see the screen easier.


Hope this would help you fix your issue.

Thanks for using Fixya.

Do rate the solution as "Fixya" if 100% satisfied.

Posted on Apr 17, 2009

  • taran_2005
    taran_2005 Apr 17, 2009

    Hi,


     This seems to be a serious issue with monitor. It seems that your display drivers are no longer working.In this regard, when you purchase the desktop, there would be a disk that was offered to you ( floppy drive ), that would have all the display driver for monitor.


     You need to run that. Usually companies like Lg, Samsung do provide this to customers. 


    If you don't have that, you need to get in touch with the local tech...that seems to be the only solution.


    Another reason for the monitor being shutdown, might be  few blown Ic's. When you open your desktop, there would be 2 boards. One big and the another small one. They are made up of millions of connections. Even a small blown Ic can cause this. 


    If your desktop is out of warranty, open it, Take a voltmeter. Remove both the boards. Check the continuity.You would find few blown Ic's and other stuff.Order new one on ebay or other online vendors.


    I hope this would help you. I know it's hard for us to judge whic Ic might have been blown or is that really display drivers for monitor that is causing problem, but you need to DIY.


    Thanks for using Fixya.


    Do rate the solution "Fixya" if 100% satisfied.


    If 

  • taran_2005
    taran_2005 Apr 17, 2009

    Hi,


     would you like me to help you to open desktop and repair it :)...


     I would love to help you, However make sure that the desktop would not be under warranty because if the open the outer cover the warranty would be void :(


    Let me know so that we can work further.




    Thanks for using fixya.

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You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

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When I turn on my HP Pavilion 1x1000 It stays on ,but there is no image on the screen, and stays on please help.


A) Post THE Product Number on the bottom of the laptop. It's in the white Service Tag. P/N = Product Number.

B) On the left/bottom side of the LCD screen frame (Display Bezel), there is a switch. Looks like a small button.

This is the Internal Display Switch. (May not be in this exact position for your model. Look around on the Display Bezel, that surrounds the LCD screen)

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C) Laptop off, monitor off, connect a VGA monitor to the VGA port on the laptop.

Example of a VGA cable, and VGA connector, (Port),

http://en.wikipedia.org/wiki/VGA_connector

You can use a CRT monitor, (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable.

C) Turn the monitor on. If a CRT type of monitor allow it to warm up.
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By factory default settings, the display should show on the external VGA monitor.

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Press, and hold down on the Fn key. At the same time tap once on the Display Toggle-Over key.

Don't know what exact HP laptop you have. For most HP's it is the F2 key, or the F4 key, that is the Display Toggle-Over key.
(Key has an empty rectangle on it, with a vertical line on each side)

Still no display on the external VGA monitor?
Hold the Fn key down again. (Bottom left of Keyboard)
Tap once more on the Display Toggle-Over key

NO display on the external VGA monitor, means you have a bad graphics chipset.

(By using an external VGA monitor, you are bypassing the Internal Display Switch, and the Display Assembly. (Internal monitor of laptop)

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Post back with your results, and if you have a display on the external VGA monitor, we will go on.

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Try the keystrokes to toggle the display. Normally you would Press and Hold the FN function key located at the lower left on the keyboard then hit the key F1 thru F12 that toggles the display. The correct F1 thru F12 key to hit will have LCD/CRT on it or it will have the icon of a display. The display toggles in three stages ( laptop only, external only or both laptop and external).

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Screen blank with white dot


Problem with;

1) Video cable:

A) Video cable connection on motherboard side is loose, and/or on back of LCD screen.

B) Video cable is damaged.

2) screen Inverter:

screen Inverter is bad.

3) LCD screen:

LCD screen is bad.

4) Graphics chipset:

Graphics chipset is bad.

Suggest you connect a VGA monitor to the VGA port (Connector) on your laptop.
See if the problem is the graphics chipset, Or video cable, Or display assembly.

You didn't state what manufacturer and Model Number of laptop this is.
All I can do is state generic information.

This is an example of a VGA Cable, and VGA connector,

http://en.wikipedia.org/wiki/VGA_connector

The VGA connector will be on the side, or back of your laptop.
For the VGA monitor you can use a CRT type monitor, (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable.

Laptop OFF, monitor OFF, connect the external VGA monitor to the laptop.
Turn the monitor on. If a CRT type allow it to warm up.

Turn the laptop on.
By default the display should show on the external VGA monitor.
IF not;

There are at least 3 display options.
1) Laptop internal monitor ONLY
2) Laptop internal monitor AND external VGA monitor
3) External VGA monitor ONLY

Press, and hold down on the Fn key, and at the same time tap once on the Display Toggle-Over key.
(For an example HP's usually use the F4 key for a Display Toggle-Over key)

Display shows the same on the external VGA monitor?
You have a bad graphics chipset.

[ Some laptops have been erroneously stated as having a graphics card, when in fact they do not.
The GPU (Graphics Processing Unit) is soldered directly to the motherboard.
This is Integrated Graphics.

http://en.wikipedia.org/wiki/GPU

There is no changeable, replaceable graphics card. Therefore the solution is motherboard replacement ]

IF, the display is good on the external monitor, you have a problem with the Video Cable, and/or in the Display Assembly.

After diagnosing with an external VGA monitor, post back in a Comment.
Also post the manufacturer name, and model number of the laptop.

Regards,
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