I cant get my external monitor plug to work - Compaq Presario 700 470024-192 Notebook

Plug in a working external monitor to the video output of the all in one. If that works then the internal monitor is ng. If the plugged in monitor also does not work then the video circuits are shot. Too expensive to replace the internal mo bo - you get ripped off on mo part cost and labor. Replace unless under warranty.

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

Video Plug-IN? Are you saying there is no display on the lcd screen?

Shine a flashlight on the dark screen to see if you barelysee the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can beany kind of monitor even the old big fat crt monitors as long as it has a vgacable to connect to your computer's vga port. If so that proves yourvideo card is ok. The video will show on most systems when you rebootwithout you having to do anything. Some systems will require you to hit the FN(Function key) + F1 thru F12. Hold down the FN key then hit the correctkey for displaying on the monitor (F1 thru F12). The correct key willnormally have CRT/LCD on it or it will have the icon of a display.

If you see no icons by shinning a flash light and the external monitor works,then your screen is bad. If you see no icons by shinning the flash lightand nothing shows on the external monitor, then most likely your video card isbad.

Most probably you have a defective LCD screen cable. This is the only possibility left since you have changed the LCD screen & inverter, & an external monitor works fine. Check your LCD screen cable & replace it if necessary.

When you attach an external monitor, press the Fn+F8 to change the video from the lcd screen to the external monitor.

Test your laptop with an external monitor and find out if the external video goes bad too. If both, internal and external images go bad, you have a problem with the video card.
If external works fine and only internal goes bad, most likely it’s either bad video cable or LCD screen failure.

Plug in the monitor and Press this combination of key FN + F8.

Regards, WAQAR.

The monitor, since it is under warranty is best to be examined by an authorized personnel or replaced. As for your laptop, I dont suppose it has a problem. Only that it should have been configured to send display to the external source once plugged.
There are 3 options

• Native + External
• Native alone
• External alone

Your laptop is configured for the 3rd option. You can change this by getting into display properties and under your graphics card configuration. Please do comment if you need further assistance

For your monitor with built in speakers, there should be a cable usually the plug is green in color, coming from the monitor which needs to be plugged to the back of the computer for the speakers to work. If you don't see a cable, then there is a plug on the monitor where a cable would go.

Yes you can connect external speakers. They plug into the back of the computer. There are usually round ports on the back colored blue, pink, and green. Figure: http://www.ultimatepcrepair.com/files/bsound.jpg (sometimes there is more, depending on your computer) The speaker cable plugs into the Green color one.

If you need more help just comment.

Plug in an external monitor and use the F key with the FN to toggle between lcd and external monitor. On my laptops It is the FN and F5. If the external monitor works the problem is the the inverter board, the flex ribbon cable or the LCD. If the external monitor is also messed up then the problem is probably the video card/ motherboard.