Question about Alienware PC Systems Computers & Internet
I've been having issues with my Alienware M18X R2 the last few days, where the laptop works fine if it isn't plugged in, and when I plug it in, about 5 minutes later the screen will go black. Sound continues to play for a good 10 seconds then turns into a horrible droning buzz.
This is known problem with chip that regulates battery charging, and need to be fixed by experienced laptop technician.
Posted on Jul 21, 2013
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Posted on Jan 02, 2017
SOURCE: Laptop LCD display problem
The backlight is the light bult that illuminates the screen. Before it finally goes out completely it will turn your screen a pink color on startup (and then usually become brighter and the pink fades). It is also possible that the backlight, also called a Cold Cathode Flourescent Light, CCFL, died an immediate death. But usually they take a while and signal with the "PINKNESS" first. If you found that your computer is working just fine connected to an external monitor (and you moved the base of your laptop around while connected to the monitor to be sure and left the computer on for a long time) then you have verified that the screen is the problem. It is usually two things: (1) the inverter, a circuit board that increases the voltage to supply the LCD which eats around 700 volts (yeah baby); or (2) the backlight itself. The first problem is a relatively easy and inexpensive fix. You can find how to replace an inverter by downloading the Hardware Maintenance Manual for the T40, T41, etc., from IBM/Lenovo's site. Replacing the backlight itself, a bulb that is like a strand of speghetti and even more delicate, is a tougher job. I would suggest purchasing a replacement screen in that event rather than replacing the backlight yourself. (The HMM probably does not show you how to replace the backlight/CCFL as it is a potentially dangerous job.) That suggestion assumes you can find a cost-effective replacement screen and do not mind opening the TP and putting the new screen in. At least look at the HMM to see what is involved. Good luck.
Posted on Apr 18, 2009
The high pitch sound is most likely a faulty inverter. Most defective screen are caused by a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :- To determine if you have a LCD screen or video card problem, read this and follow the instructions. Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) 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 Jun 13, 2009
To isolate this issue first find out whether notebook LCD display gone bad or not....... to do this connect the notebook to any external monitor with the help of VGA port which looks like a blue port...... determine whether issue is with LCD display or the operating system, and get repaired by the nearest local service center. hope this help u.. further quries give me reply
Posted on Jul 25, 2009
Try connecting the laptop to an external monitor and see if all is working Ok with that, if it is, then you may need to get the laptop display serviced - if it does the same on the external display, then try booting the laptop from a CD or DVD such as an OS install CD (Windows or Linux) or a boot utility CD such as Hiren's Boot CD - this will allow you to test whether the problem lays with your installed operating system or with the hardware. . . .
Note: do not go any further than the initial displays if using an OS install CD unless you are using a Linux Live boot CD which will not destroy your installed operating system. . . .See http://www.hirensbootcd.org/ to download a copy of Hiren's Boot CD to burn to a CD. . . .See http://www.ubuntu.com/download/ubuntu/download to download a copy of a Ubuntu (Linux) Live CD.
Posted on Dec 17, 2011
It only means that either the Inverter Cable/LCD cable or the LCD itself is defective, because if you still see the contents of the laptop to an external monitor, then it means that the rest of the computer's components are working.
You can have the Inverter Cable reseated or have the LCD screen replaced. Have it tested by a local technician.
Posted on Mar 15, 2012
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