Question about Acer Aspire 4315 Notebook
First steps is the easy steps, did you install the motherboard driver. If you've already installed the motherboard driver, but there is no display, that's the time to do a hard troubleshooting.
Now let's discuss what weshould do when the laptop seems to be booting up without problems, thehard drive spins appropriately, and we even hear the welcome sound ofthe operating system, but we have no display on the LCD panel.
The easiest and most foolproof method for testing your LCD screen is to hook up the laptop to an external monitor. If the video output onthe external monitor looks fine, this means that the problem is withthe video connector, with your LCD panel itself, or with the circuitrythat turns on the LCD.
What do we do? It allstarts with disassembling the notebook. Find the video connector on thesystem board (if the video is integrated on the motherboard) or on thevideo card that is attached to the motherboard. Try re-connecting thecables. You may as well locate the display connector on the back of theend LCD panel. Re-seat that one too. This way you can be sure that theproblem is not related to connections.
Every now and then theswitch located on the system board that turns the backlight of the LCDon and off can become stuck. If this is the problem then your LCD neverpowers on. There's a little switch that detects whether the screen ofyour notebook is open or closed. That's the one we're talking about.Try to push it down and hope it gets unstuck.
Disassemblingthe laptop to unstick this switch is an option, but sometimes you canget away with not taking it apart. Try lightly hitting that plasticswitch. But wait, this isn't the only possible cause, unfortunately.Re-seat the other connectors and cables that are present around the LCDpanel and the video on board (including the inverter).
Allof the aforementioned can usually be fixed, but let's not forget aboutthe screen itself. Sometimes the screen can become defective. Herewe'll enumerate a few scenarios where the screen has gone bad and mustbe replaced: lots of vertical lines or bands appearing on the screen;half of the screen works fine but the other half stays either black(blank) or really white; the output on the screen looks blurred andchanges to different patterns; and so forth. These are almost alwayssigns of a defective LCD panel.
However, if theoutput on the screen is nothing but garbage, such as incorrectly placedspecial characters, shadows around the characters, unknown randomlyplaced marks of different colors, distorted or ugly-looking geometricpatterns, or tiny little white dots all over the screen, then these arealmost always due to the system board or the connection between the LCDpanel and the video card. Re-seat the connectors.
Allin all, these are some of the most common hardware failures.Nevertheless, before we finish this part, let's name some of theothers that will be covered in the second segment of this guide, alongwith the promised system instability troubleshooting strategies. Theseinclude clicking noises coming from the HDD, which is the well-knownsymptom of a dying HDD. Thus, back up your important data as soon aspossible and order a replacement.
Suddenly overheating is also discussedthoroughly and may cause of shutting down.
Good luck !!!
Posted on Jul 15, 2009
Install the grafic driver and check the disply setting
Posted on Jul 15, 2009
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Posted on Jan 02, 2017
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