Question about Computers & Internet
Hi Acer aspire 9410. Page flickered rapidly-Shut down pc. Black screen now. Tho near start up it will flash - only once. External monitor will work, tho only when the lcd on laptop cable is disconnected at start up. Plugging into MB after start up and screen on external monitor it remains black,. Now have screen apart. The backlight will flash once on start up. See flashing the Bios as a solution on some sites? Just talked to a tech and they said replacing the cathode is too finicky. Can get a used screen. Any hints on what to try before going either route? Oh and in display settings the laptop was not showing. Then showed. But unable to apply ' changes when checking extend to laptop. Do wonder if it is a possible programing issue? Thanks.
Look for your computer's monitor settings, then adjust its refresh rate.
To modify a refresh rate on Windows, right-click anywhere on the Windows desktop. Select "Properties," then choose the "Display Properties" tab on the window that appears.
Click the "Settings" option, then select "Advanced" from the window that appears. Choose the "Monitor" tab, which lets you access a drop-down menu with the options for refresh settings adjustments. As a basic guide, use a setting of at least 75 hertz.
Confirm the change by clicking "Apply." Reboot the PC to ensure the new settings on the screen take effect. Check your screen if the blinking problem is resolved. If not, try a higher refresh setting. If there is no change on the flickering of the screen, this means the problem is not caused by the screen's refresh rate. If your computer is not running on a battery or surge protector, shut it down to safely transfer the plug to another outlet Hope this helps.
Posted on Jan 15, 2013
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Posted on Jan 02, 2017
Since the laptop works on the external monitor, then it would be safe to assume that it is only the L:CD display part that is the issue. Often LCD display (of laptops) are working but only that you can see the actual display. One way to verify is to shine a flashlight at an oblique angle to the screen, semblance or part of the desktop could be seen. If the desktop could be seen (albeit very very dark background) then it could either be the CCF Lamps (cold cathode florescent) or the inverter that powers the lamps.
Often, the defective component would be the inverter. It is relatively easy to replace the inverted. It is sometimes more difficult and challenging cracking open the casing of the display panel of the laptop than replacing the inverter. Additionally, inverters are readily available online. It is also not surprising that inverters for other brands/models would also be used in your Toshiba.
This would be a good place to start for inverter boards. This is a nice tutorial if you are considering a DIY.
In some worst case scenario, it could be the video interface or even a loose/open flat cable from the laptop's main body towards the LCD display panel.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on May 08, 2008
If your system won't display anything w/o the external monitor. there's something wrong with the LCD's backlight. you may have to contact your laptop's manufacturer and check if this laptop is still under warranty. you may have to get the lcd replaced.
Posted on Aug 26, 2008
Defective CCFL backlight may has the following symptom:
has reached the end of the life and all you need to do is replacing the CCFL lamp
Connect an external monitor to your laptop and power it up, 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 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.
Posted on Mar 31, 2009
Lines on the screen means the LCD is bad and needs to be replaced. The inverter just makes sure the lcd turns on. That wouldn't cause lines on the screen.
Posted on Nov 28, 2009
this is possible ..if nothing it is shown ..activate the external monitor by pressing fn+f4 ..This activates the external monitor in most laptops..and if the external one works ..that the issue is the screen and mostly the ribbon ..cause if it was the inverter back light it still shows shadows on it ...But first take a look again on the way ribbon is plugged and the back light cables..If you removed the mobo ..I assumed you also disconnected the display ...Also pay attention cause most laptops beeps when the ram memory is checked..on devices display ..and if you hear teh beep it probably work ...Also you may connect the hdd and try to boot to windows in blind and see if the windows log-in sound is heard ..This way you will now for sure it is the screen connection
Posted on Jan 26, 2011
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