My laptop acer aspireone mini laptop screen is blackout i can't get it started.
You might have a faulty Liquid Crystal Display [LCD] Panel Power Inverter. Or the LCD Panel itself might be faulty. Either can be replaced. The Inverter is relatively inexpensive, a replacement LCD Panel, a little more.
To test for a faulty screen, connect your notebook to an external Desktop Monitor, using a standard VGA Cable -> press and hold the Fn key bottom left of your keyboard -> press the Function key at the top of your keyboard with the image of the two monitors on it -> release both keys -> if the image sent to the external monitor is correct then the fault is likely to be in one of the components of the LCD Screen and you should take the notebook to a repair centre to test test and replace the faulty component(s).
If you cannot start the computer at all, but there is a constant or flashing Power Light Emitting Diode [LED] on at the front but no Hard Disk Drive [HDD] LED on, then either the battery is faulty, there is a loose Direct ()Electrical) Current [DC] Jack, the Graphical Processing Unit [GPU] chip is faulty or there is a damaged Motherboard Power Management Track.
To eliminate other possible causes of the symptoms you describe, remove the battery and connect the notebook directly to the mains electricity without a battery and then try to power the notebook up. If the notebook powers up and boots into its Operating System then the battery cells are probably depleted and cannot recharge, so the battery should be tested and, if found faulty, replaced.
If the battery is not the problem, check for a loose DC Jack. If the point where the the Power Cable connects to the notebook is loose and is either in intermittent contact or not at all in contact with its solder points on the motherboard, then power might not be reaching the motherboard. Loose DC Jacks can be re-soldered or replaced if damaged.
A loose DC Jack that is in intermittent contact with the motherboard, an electrical power surge or sudden power cut or disconnection of the power cable can damage the Power Management System of the motherboard. It is sometimes possible to repair Power Management problem afflicted notebook motherboards by replacing blown capacitors and/or bypassing burnt out or damaged circuit tracks by creating new ones. Extensive damage to a motherboard might make it uneconomical to repair. Replacement motherboards are available and could be installed but when combined with the cost of labor for the overall repair the price might be prohibitively high.
A faulty GPU can have new tracks made to it, or have a damaged chip (silicon chip) surface cleaned to restore lost graphics by two different processes, Ball Graphics Array (BGA) Reflowing or BGA Re-balling. Re-balling has the longer lasting and better success rate. When the surface of the GPU is too damaged it may not be possible to repair it.
All of these motherboard repairs require a laptop repair specialist to disassemble the notebook and test, replace or repair any faulty components. These repairs can be expensive and need to be weighed up against the current value of the notebook and the cost of a new replacement notebook.
Nov 20, 2011 |
Acer Aspire One PC Notebook