Having problems with your Acer TravelMate 242LC Notebook ?

Black screen on acer 242lc lights come on power up

\015 Hi\015\012there is no picture on my screen...... black screen on acer 242lc...the lights come on power up button etc... evrything else works i think but no picture on screen. can anyone help please??..thanks\015

Answers :

You indicate that the lamp for Power On comes on? (Light bulb icon)

What about the harddrive activity lamp? (Media Activity icon. Looks like a book. Third icon going right, from Light bulb icon)

Is this lamp lit up? (May flash dim to bright) This indicates the harddrive is working.

Yes?
Do you have a floppy disk in the floppy disk drive? Remove it.

No floppy disk? Media Activity icon lamp is working?
Try increasing the Brightness. Hold the Fn key down, (Function key), and press the Right Arrow key.

No?
See if the LCD screen display has accidentally been toggled over to an external display. Hold the Fn key down, tap the F5 key once.

No?
Then it's time to get technical.
The following is not designed to confuse you, nor make it seem like, 'I'm all that, and a bag of chips'
It's a Flow Chart I have used in the past, plus techniques for finding laptop display problems.
[I no longer require using this flow chart]

Do you have an external VGA monitor you can connect for a test? Your laptop has a VGA connector on the back.

[Your VGA connector is in the center, on the back of your laptop]
(VGA monitor looks like a TV. It is a Cathode Ray Tube. CRT)

This is what a VGA connector looks like,
http://en.wikipedia.org/wiki/VGA_connector
(Top photo on right)

Connect the VGA monitor first, THEN, power on your Acer laptop.

Now turn the power on the VGA monitor to On.

You have to toggle your graphics over from your LCD screen of the laptop, to this VGA monitor.

To do this you hold the Fn key down, then tap the F5 key once. (A VGA monitor takes a second, or so to 'Come to life'. Wait a few seconds, see if the VGA monitor comes on. If not, hold the Fn key down again, and tap the F5 key)

Now, do you have graphics on the VGA monitor?

Yes?
Do you have a dim screen?
Try using the Brightness control of the VGA monitor to increase.

Doesn't work?
Then you have a bad Backlight, or a bad Inverter.
(An Inverter supplies the correct power to the LCD screen, and the Backlight.

The Backlight is comparable to a Fluorescent tube, used for normal residential, and commercial lighting. It is a Cold Cathode Fluorescent Lamp. CCFL. The LCD screen cannot be seen without this Backlight bulb)

Requires replacement of these two components.
A Backlight bulb is cheaper to replace than an Inverter. A Backlight bulb is also MUCH harder to replace than an Inverter.

The Backlight bulb is located within the LCD screen itself, which requires dismantling the LCD screen to replace it.

The Inverter is a component that is accessed much easier.

Upon removing the LCD screen from the laptop, then removing the bezel that goes around the LCD screen, the Inverter is located at the bottom of the LCD screen.

I state that both components should be replaced, because I have found that when one goes out, the other is usually not far behind it.

Do not have a dim screen?
Then the connectors for the wires, that supply the video signal, and power to your LCD screen, may be loose.

OR,
1.It could be those wires are broken

2.It could be a bad LCD screen

3.Could be a bad connector on the motherboard, for the wire's that deliver signal, and power to the LCD screen's connector,
or the matching connector on the LCD screen, for those wires.

Do not have graphics, (images), on the external monitor?
Then you have a bad graphics chip on the laptop's motherboard.
Requires replacement of the motherboard.

The above is stated, so that you will know what may be happening with your Acer Travelmate laptop.
It is for information purposes.
It is not a recommendation, nor advisement to repair the laptop.

The only true way of finding out what is wrong with your laptop, is to take it to a competent computer repair shop, and have it diagnosed by a professional.
You may have a 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 the monitor up first then the laptop, 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 LCD Parts for service, parts, and DIY info Use this link to their WEB site :-
www.lcdparts.net
Repair Help & Product Troubleshooting for Acer TravelMate 242LC Notebook

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