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How to change the screen of aspire 4290 - Computers & Internet

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I don't find an Acer Aspire 4290. Are you sure it isn't an Aspire 4920?

No matter.

1) Work on a table. Not on a bed, couch, or directly on a carpet floor.
High areas of Static.

2) Place a soft cloth that is Static free on the table. (Helps to prevent scratching the table, and the laptop )

3) Remove ALL power. Remove the AC adapter (Charger) and Battery.
High areas of Static.

4) Laptop on the table in it's normal position, open it as far back as the top will go.

Acer Aspire 4920 Service Manual, (Free),

Go down to the 'paragraph' that starts with Aspire 1200. (1200 in blue)
Drop down to the 5th line (4710 in blue), and scroll across to 4920.
Click on 4920.

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.

After you click on the file name (4920) it may take up to 30 seconds, before the first page comes up.

At the top of the PDF file in the header, is the page number box.
It is to the right of the Down Arrow.

If you know the page you want, you can use the Down Arrow,
1) Put your mouse cursor in the page number box.
2) Left-click once. (Anything in the page number box, is highlighted in blue)
3) Type the page number.
4) Press the Enter key.

You can also use the Bookmarks menu to the left.
1) Click on the + sign to the left of -
Machine Disassembly
2) Click on - LCD Module Disassembly Process

Go to Page 95.

A) The screw covers on the Display Bezel are synthetic rubber, and have a type of rubber cement on them.

If you carefully take a computer pick, or similar object, and ease them off, and set them upside down, there is a good chance you can reuse them.

B) The Display Bezel is the thin plastic frame in front of the LCD screen, and surrounds the LCD screen. Resembles a picture frame.

On the outside edges not seen, are small plastic protrusions formed out of the Display Bezel itself.
These 'tabs' snap into corresponding tabs on the Top Cover. (Display Cover)

After the screws are removed, take your fingertips, and ease the Inside/Middle of the Display Bezel up.

Top, or sides.
The Display Bezel will flex. Once you have a space large enough for a finger under the inside/middle, ease another finger next to it, and move down towards a corner.

The Display Bezel will start popping up. The release of the tabs make a popping, or snapping sound.
Just wanted you to know this, so you know you aren't breaking anything.

The Display Bezel is made of a space-age plastic.
But of course everything does have it's limits.

(Watch your fingers under the bezel, also. May be sharp edges not removed by the factory. Haven't ran into any in 10+ years, (Laptop), but want you to be safe)

C) The LCD screen is composed of layers. These layers are held in place by a Screen Frame. The thin metal frame which surrounds them, and resembles a picture frame.

The Hinge Brackets are screwed to the Screen Frame. There are specific Philips head screws to remove, to remove the brackets.

The other screws being removed will take the Screen Frame apart.

D) After you connect the Video Cable to the back of the LCD screen, make SURE there is sticky tape holding it in place.

Only takes a little bump to slightly dislodge the connector of the cable, and you'll be scratching your head.

Now, I would like to ask;
1) Is there obvious damage to the LCD screen, and this is why it is being replaced?

2) Was there a diagnosis done, and it warrants replacing the LCD screen?

3) Is it an assumption, with no diagnoses done?

Reason I ask is because many people replace the LCD screen, when it isn't the problem at all.

90 PERCENT OF THE TIME the fault is a bad screen Inverter.
(Costs about 1/6th to 1/5th the price of an LCD screen.

It is the small circuit board behind the Display Bezel, and mounted at the bottom of the LCD screen assembly )

Post back in a Comment.


Posted on Feb 12, 2012

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A replacement screen maybe available from this WEB site.
Replacing Display hinges
b>Laptop repair info

Posted on Feb 12, 2012


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