Question about Lenovo ThinkPad R51

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Screen darkening from right side

My display is darkening, light wise, along the right & left edges of the screen from about 2" out getting darker as you near the edge. The LCD image is still sharp in this area which leads me to believe that it is backlight related. I was wondering if:
1. this is an indicator of s future failure of the inverter or backlight?
2. could this be dirt and just need the tubes to be cleaned?
3. what you think the problem is

Model R51 1830-UUB

Thank you!

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Re: screen darkening from right side - Lenovo ThinkPad R51 PC Laptops

1 lool
change lcd panel ok

Posted on Jan 19, 2008

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Replace lcd on gateway NV57h77u

I disagree. The procedure is so easy no Service Manual is needed

1) Remove ALL power. Remove the AC adapter, and Battery.

2) Open the laptop.

The plastic frame in front of the LCD screen is the Display Bezel.
(Gateway? Believe they call it the LCD Panel Bezel)

Down in the BOTTOM corners, next to the Hinges, are screws to be removed. One in each bottom corner.

There are Screw Covers over these screws. The Screw Covers need to be removed.
Little round covers I believe to be made of plastic.
(Some models they are made of synthetic rubber)

I use a computer pick to Gently remove them.
Some use the tip of an X-Acto knife. I do not recommend this as there is a possibility of injury.
Perhaps a large darning needle. (Needle you sew with, but is Large in size)

Pick up at one edge of Screw Cover. Screw Covers are held on by a type of rubber cement.
I LIGHTLY stick them to the Display Bezel for safekeeping.

(Yes. They like to stick to the tool, your fingers, and it seems passing jets in the sky.
If you are careful with them, you should be able to reuse them.
If they do not stick anymore, use a toothpick, and apply a TINY dab of rubber cement to them/it )

Once the Screw Covers are removed use a No.1 Philips screwdriver, or equivalent Jewelers screwdriver; to remove the 2 screws.

The Display Bezel has TABS going around the exterior perimeter, of it's inside edges.
These Tabs snap into matching LATCHES on the Display Cover.

You can come from the Outside edge, where the Display Bezel meets the Display Cover, and use a thick guitar pick.

The guitar pick is wedged into the parting line, of where the Display Bezel meets the Display Cover.

Once a 'crack' is formed in-between the two, then the fingertips are used to gently start popping the bezel from the cover.

You slowly go along with your fingertips, and work along the top, then sides. By the time you have both sides almost loose, the Display Bezel usually pops off.

I like the flex method.
Come to the inside edge of the Display Bezel.
Where it meets the LCD screen. I suggest start on the Right side/Middle.

Use a fingertip, and lift up the inside edge of the Display Bezel up a little. Can't lift up at that spot? Move over. You are at a Tab/Latch.

With this spot lifted up a little, use the fingertip of the other hand, and slide under next to it.
Now use your fingertips as wedges, and pop the Display Bezel loose a little at a time.

I start at the Right side/Middle as stated. Left hand fingertips go DOWN the right side, Right hand fingertips go UP the right side.
Then I go across the Top, and down the Left side.

MOST of the time, as stated; the Display Bezel usually pops off when right side, and left side are most of the way popped loose.
NOT always though!

Sometimes you have to pop EACH and EVERY Tab/Latch loose.

Also; watch around the Hinge area/s.
Display Bezel can get hung up around them.
Go slow, and gently work the Display Bezel off, around the Hinge areas.

Display Bezel popped off, sit back; relax. You just did the hard part.
Wasn't so tough, huh?

This is what the Display Bezel looks like removed,

The MAIN view shown is a BACK view.
In the smaller views underneath, the 4th view from the Left, shows the FRONT view.

If you SET your mouse cursor in the middle of the Main view photo, the Zoom In feature is enabled.
You can CLICK on any of the smaller views, to make them appear as a Main view.

You can also see that the Hinge Covers, are an integral part of the Display Bezel. Shows you that when removing the Display Bezel, these Hinge Covers may need to be worked off of the Hinges.

Of course, may not; as I have previously stated.

The LCD screen is an Assembly. It is composed of layers.
These layers are kept in the factory set alignment, by a metal Screen Frame.
The Screen Frame resembles a picture frame.

There are THREE screws on each side of the Screen Frame.
These screws (Philips) go through metal Brackets, and hold the LCD screen/Screen Frame; to the Display Cover.

The Brackets are an integral part of the Hinges,

On EACH side, there is 1 screw towards the Top, 1 screw towards the Bottom/Middle, and 1 screw towards the Bottom.

Remove all 6 screws.

At the Top is the Webcam Cable. Unplug it from the Webcam Module.
(Cable pulls to LEFT side, facing laptop)

The TOP of the LCD screen is now tilted forward.
The Video Cable plugs into the Bottom side.

There should be a piece of clear Mylar tape, holding the Video Cable connector in place. Carefully peel it back, unplug the Video Cable from the LCD screen.

Remove the LCD screen.

Reverse steps to install new LCD screen.

For additional questions please post in a Comment.




Apr 12, 2013 | Gateway Nv57h77u Laptop/notebook

1 Answer

How to replace a ccfl backlight bulb on presario cq60-419wm


Let's talk for a minute..........

CCFL = Cold Cathode Fluorescent Lamp. (Bulb)
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.

Average thickness is 2mm. That is a little thicker than 1/16th of an Inch.
Or about the width of this capital -> O <-

Average length is almost as long, as the LCD screen is in height.

Just like it's larger 'cousins', it has Mercury in it. A POISON.

They break VERY easily, and have Mercury inside.

I usually suggest changing the LCD screen itself, to replace a Backlight.

More expensive?
If you are talking about price of LCD screen compared to a CCFL bulb.

There is NO price for a human life.

Okay, moving on..................



3) Service Manual:

HP Support > Compaq Presario CQ60-419wm Notebook PC >
Manuals download page, (User Guides)

Scroll down, click on the blue -

Compaq Presario CQ60 Notebook PC HP G60 Notebook PC - Maintenance and Service Guide

[Ignore if you are aware;
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 above file name it may take up to 30 seconds, before the first page comes up.

(The PDF file will not show until fully downloaded )

Go to the top left corner, and click on the small square icon -
Toggle Slider.
Becomes two small square icons.
Show Thumbnails on the left, Show Document Outline on the right.
Click on Show Document Outline to see the Bookmarks menu.

The Zoom In icon ( + ) at the Top, increases the view size when you click on it.
The Zoom Our icon ( - ) decreases the view size.

When I refer to a page number, it is for the Adobe Reader page number box at the Top. (To the right of the Down Arrow) ]

The plastic frame in front of the LCD screen is the Display Bezel.

I may be wrong, but I believe the Display Bezel can be removed, WITHOUT having to remove the entire Display Assembly from the laptop.

Makes life a lot easier.

There is a Philips head screw in the Bottom/Left corner, and a Philips head screw in the Bottom/Right corner, to remove from the Display Bezel.

They are under Screw Covers. The Screw Covers are made of synthetic rubber, or plastic. They are held in place by a type of rubber cement.
I take a computer pick, and gently pry up at the base of the Screw Cover.

If you are careful you should be able to reuse the Screw Covers.
If they do not stick anymore, apply a TINY dab of rubber cement to them, with a toothpick.

The Display Bezel has TABS going around the exterior perimeter of it's inside edges.
These snap into matching LATCHES on the Display Cover.

There also may be some sticky tape, at the bottom/inside edge of the Display Bezel. Means CAREFULLY pry the bottom edge of the Display Bezel when removing.

The best method, of removal of the Display Bezel that I have found, is to flex it.
It is made of space-age plastic, and is pretty tough stuff.
(Of course there are those, who could destroy a steel ball bearing with a rubber mallet, in a sandbox)

I cut a piece of thick construction paper, to just fit the inside edges of the Display Bezel.
Display Assembly laid as far back as possible, the thick piece of construction paper will stay in place.
It is used to prevent scratching of the LCD screen, from your fingernails.

Come to the Inside edge (LCD screen side), of the right/middle side of the Display Bezel. Sliding a fingertip of one hand under the bezel to lift up slightly.
Can't get in? Move over a little. You are at a Tab/Latch.

With one fingertip under the bezel, slide another fingertip under from your other hand. By now a Tab/Latch should have released.


Sounds like you're breaking something.

Keeping the bezel slightly up, move along with the fingertips of one hand, and move towards the Top.
Go along the Top popping Tabs/Latches loose.
Then come down the Left side.

As you reach the bottom ease up on one side a little, and wait for the tape to start releasing. Then ease along the bottom until all the tape releases, and the Display Bezel pops off.

Once the Display Bezel is removed, then disconnect the small cable that comes from the Video Cable (Display Cable - HP), TO the screen Inverter board. (Left side of screen Inverter)

(screen Inverter is mounted behind the Display Bezel, and at the bottom of the Screen Frame.
The Screen Frame is the thin metal frame which surrounds the LCD screen assembly)

[The LCD screen is an assembly of layers. The layers are held in the factory set position by the Screen Frame]

Disconnect the small cable that goes TO the screen Inverter, on the Right side of the screen Inverter.
Remove the screen Inverter, and lay aside.

Remove the Philips head screw at EACH top corner. Holds the Screen Frame TO the Display Cover.

Tilt the top of the LCD screen towards you, remove the clear adhesive tape over the Video Cable connector on the back of the LCD screen.

(DO NOT remove the tape all the way. Just carefully peel it back far enough, so that you can get to the Video cable connector, at the back of the LCD screen. This way you should be able to reuse the tape)

Disconnect the Video Cable (Display Cable) from the back of the LCD screen.

Remove JUST the screws which hold the Hinge Brackets TO the Screen Frame.

The Screen Frame can be taken apart. Of course you will need to do this, BUT ONLY after removing the LCD screen assembly.

THREE screws on each side for the Hinge Brackets.
(Display Panel Brackets)
One towards the Top, two down towards the Bottom.

Pages 64 through 80 in Service Manual.

Page 66/ Bottom; shows the Screw Covers, and Screws to remove from Display Bezel.
Page 68/ Bottom; shows disconnecting the screen Inverter.

Page 69 shows screws to remove in order to remove LCD screen.
(Display Panel)

Page 69/ Bottom shows screws to remove for removing Hinge Brackets.
(Display Panel Brackets)

Pages 128 through 133 - Recycling/Display: shows taking the Screen Frame apart, and accessing Backlight.

For additional questions please post in a Comment.


(WEAR gloves -> BE SAFE)

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1 Answer

Why is my picture darker than normal

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Jan 13, 2012 | Toshiba PC Laptops

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I get an intermittent shadow on the left-side of myscreen. Computer works fine, except at times I have the shadow.

If you mean that the left side of the screen goes darker than the right side, then this is an indication of a faulty backlight. There are probably two CCFL tubes, one on each side of the screen. If one starts to fail, then that side of the screen will get less light and look darker. The tube may need to be replaced.

May 25, 2011 | Acer Aspire One PC Notebook

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The screen on my dell inspiron 1545 64 bit windows vista is darker on one side than the other and sometimes flickers and progressively gets darker, could it be a driver? or something that i can fix online...

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