Acer Travelmate 6291 LCD monitor problem

Hi,

Your concern is a typical problem with LCD displays/monitors. There could possibly be three (3) reasons why it is behaving as you have posted.
1. Backlight/Inverter problem;
2. LCD panel problem;
3. Video card problem.

You can do initial diagnosis by:
a. connect the laptop to an external monitor. Using the Fn + F? keys, activate the external monitor to be the default display. If it works, you have eliminated the possibility of the video card having a problem. If it likewise did not display anything or blanks out after sometime, then you have just confirmed that it is the video card that is a problem.

If you have ruled out the video card (using above procedure), you can proceed determining if it is an LCD panel problem or backlight/inverter problem.

To determine if it is a backlight/inverter problem, run the laptop normally even without a display. Let it boot and run through its startup sequence even if you can not see anything. Using a flashlight, shine a light obliquely to the face of the LCD display. if you can see some semblance of your desktop albeit dark, then you have just confirmed that it is the backlight/inverter. If even with the aid of a flashlight, the display s completely blank, then it is possible that the LCD display panel is defective. In some cases it is the flexible flat cable that is at fault.

With any of the aforementioned possible problems, opening the unit is required. This would need familiarity with electronic components and circuitry, use of a DVM and perhaps even a soldering iron. Should you not be comfortable doing this, it would probably be to your best advantage to seek the services of a qualifiedly professional.

Hope this be of some help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.