Question about Compaq Presario Notebook

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Lcd screen partially paralyzed

My laptop lcd screen is paralyzed about 3/4 the way down. It happened when it was closed and a little kid sat on it. He did not weigh much but.
So now the screen only works on the top. If I pinch the left side of screen
mid way - really hard it clears up and frees the cursor to move full screen. But It is hard to hold that and type 1 handed! Also it is getting harder to find that exact spot to make it work. What do you suggest to fix the screen (apparently on the left side right near the metal border.) Is it fixable?

Much Thanks!

Trudi & Wes

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  • Compaq Master
  • 19,396 Answers

The problem is either the LCD display, or the ribbon cable/connector.
The laptop must be taken apart testing the lcd ribbon cable, replacing it or re-fitting it in place inside the connector.
If ribbon cable is ok, then LCD panel is faulty.
If problem disabbears when you push the laptop case, then it is probably the cable.
Go to a reliable computer repair shop and mention the problem, the cable is worth just a couple dollars, and the labour is around $80.

Posted on Aug 26, 2008

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Posted on Jan 02, 2017

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Vertical lines on my compaq cq61


Problem is;

1) Bad graphics chipset,
or
2) Bad Video Cable, or loose connections,
or,
3) Bad screen Inverter,
or,
4) Bad LCD screen.

A) Graphics chipset:

(Chip and Chipset are slang terms for I.C.
Integrated Circuit,

http://en.wikipedia.org/wiki/Integrated_Circuit

The chipset, or I.C. used for graphics; is the graphics chipset.
More properly known as the G.P.U.
Graphics Processing Unit,

http://en.wikipedia.org/wiki/GPU )

Laptop OFF, monitor OFF, connect a VGA monitor; to the VGA connector on the laptop. (Port)
(Left side of laptop, if memory serves)

This is a General example of a VGA connector, (Port), and VGA cable,

http://en.wikipedia.org/wiki/VGA_Connector

You can use a CRT type of monitor (Looks like a small TV), or a flat LCD screen monitor if it has a VGA cable.

Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.
By factory default settings, the display should show on the external VGA monitor.
IF not;

You have at least 3 display options available;
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

Press, and hold the Fn key down, and at the SAME time tap once on the F4 key.
(The F4 key is the Display Toggle-Over key)

Still no?
Hold the Fn key down again, and tap once more on the F4 key.

Same display on external VGA monitor (Red lines), suggests problem with the graphics chipset.
Good display on external VGA monitor means;

Problem with;
1) Video Cable
2) screen Inverter
3) LCD screen

http://tim.id.au/laptops/hp/hp%20g60%20compaq%20presario%20cq60.pdf

If you find it is one of the three stated above, post back in a Comment; and I'll guide you step by step, in diagnosing.

Will require partial disassembly of laptop, but not very far.
Will also require an ESD wrist strap.
Average cost is around $3 to $6.

Example,

http://www.radioshack.com/product/index.jsp?productId=2103245

Needed to keep from Static shocking, the delicate hardware components inside the laptop.

[All power removed;
Loosen Keyboard, and roll over out of the way. Do NOT disconnect Keyboard Cable.
Remove Keyboard Cover.
Remove Display Bezel.
Remove screws that hold LCD screen to Display Cover, and check Video Cable connections to back of LCD screen.

The plastic frame in front of the LCD screen, is the Display Bezel.
Laptop closed the top cover is the Display Cover.

Just basic instructions. Like I said, I will step by step you through it, if you wish ]

[Primer:
An LCD screen cannot produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL (or more than one), or a series of LED's.
(Light Emitting Diode)

The Compaq Presario CQ61 series of Notebook PC's, uses a single (1) CCFL.

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.

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

Average length is almost as long, as the LCD screen is in height.
View the last 8 photos,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

The screen Inverter converts the power (Electricity), from the laptop; for the LCD screen, and Backlight.
Backlighting that uses CCFL, uses a screen Inverter.

Backlighting that uses a series of LED's, May or May Not use a screen Inverter.
It seems when the LED technology first came out, they did.
Later designs do not seem to.

Regards,
joecoolvette

Mar 25, 2013 | Computers & Internet

1 Answer

My hp pavilion dv2000 screen will not come on. all led lights work but screen will only stay blank. What do I do?


Suggest you check first for damage to the Display Cable, before going further.

This is HP Support, the support page for the HP Pavilion dv2000 series laptops, and the Manuals download page,

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&lang=en&product=1817074&

Left-click on the first file name -
HP Pavilion dv2000 Notebook PC Maintenance and Service Guide.

After you click on the above PDF file name, you may not see anything happening for up to 30 seconds. The file is downloading in the background.
(For a test I downloaded it just now. Took almost 40 seconds with a medium speed DSL connection)

Don't know if you are familiar with PDF files. If so disregard the following.

Suggest you view the file at the 100% view. You can enlarge the view later anytime you wish.
At the top header is a Zoom In icon, and a Zoom Out icon.
Zoom In +
Zoom Out -

To the left is the Bookmarks menu.
By default it opens to the main heading - Maintenance and Service Guide.
Left-click on the + sign to the left of Maintenance and Service Guide.

Scroll down the sub-headings, and left-click on the + sign to the left of -
Removal and Replacement Procedures.

Now scroll down, and left-click on -
5.12 Display Assembly

You're on Page 145.
Use the blue Down Arrow in the top heading, and scroll down to Page 146.
I want you to view the Display Cable, item number 1.

Enlarge the illustration.
Scroll the page up a little for better clarity of the Display Cable.

The number 1 is pointing to the male connector on the end of the Display Cable, that plugs into the motherboard.
It is shown unplugged from the female (White) connector on the motherboard.

The Display Cable connects to the motherboard, and then routes to the LCD Display screen via right by one of the hinges. (Left Hinge)

Opening, and closing the laptop can cause the Display Cable to become partially disconnected from the motherboard.

The area the cable routes through, may cause damage to the cable over time. Generally the damage is visual enough to see.
Sometimes the cable is stretched, and the damage is not readily apparent.

The tiny wires inside that cable's sheath can be stretched far enough to break, and the outside sheath will show no apparent damage.
Fun stuff, huh?

Most of the time however, the male connection on the motherboard, has become partially disconnected.

To access the Display Cable:

1) Remove all power to the laptop.
Remove the AC adapter (Charger), and the Battery.

2) Lay the laptop on a table, push the LCD display assembly until it is laying flat on the table.

3) Remove the Keyboard.
(Page 137)

4) Remove the Switch Cover.
(Page 141)


I await your reply (Via a Comment) after you have opened the laptop, and diagnosed whether you have a Display Cable partially disconnected, or damaged, or no apparent damage is visible.

[ You may have to remove the Display Bezel from the Display Assembly, and look at the connection of the Display Cable going to the Inverter.
Pages 148-149, and 152 ]

Oct 09, 2010 | Computers & Internet

1 Answer

Has a Toshiba Tecra 9000 won't power up. Power light on front is blanking which appears to be a code 3-3-2


The problem is cause due to one of the following: the backlight or the display, check your monitor brightness settings. Sometimes your brightness may accidentally have been all the way turned down, resulting in a blank/dark screen. The monitor controls are on the keyboard, directly above the numeric keys.
Look closely at your laptop's screen if the steps do not restore power to it and if it remains blank. Can you see a faint image on the screen? If so, the backlight may be off due to the LCD "lid close" detector malfunctioning. This malfunction likely happened due to the lid close switch being stuck in the "closed" position even though the lid is open. The switch is located beside the LCD's screen hinges, and tapping the switch a few times should unstick it.
Use an S-Video cable and plug your laptop up to an external monitor, such as your television set. With the laptop and TV hooked up, turn both on and see if your computer's desktop is displayed on the TV. You can also use a fifteen ( 15 )pin monitor desktop monitor by connecting it to the blue fifteen ( 15 ) connector at the side of the laptop if you cannot see anything on screen it is the display problem. If it is, your laptop's display needs to be replaced. If not, your motherboard and/or video subsystem may need to be completely removed and replaced.

Aug 31, 2010 | Computers & Internet

1 Answer

Black box in center of screen


You have closed captioning on and in 'text' mode. Can be either in TV menu settings, a button on the TV remote, or set-up in a set top(cable/SAT) box.

Apr 19, 2010 | Memorex MLT3221 32 in. LCD TV

1 Answer

I had a vertical line on my laptop screen


A line on a LCD screen (like a laptop) is caused by a faulty power connection in the screen.

Usually a entire row or column will not activate causing a black line to show. When you closed your laptop, the screen is powered down. When you opened it back up, the screen would be reinitialized and it appears that you lucked out on your issue.

When a row or column fails it is usually a permament failure that can only be fixed by a monitor technician or a screen replacement.

A similar failure can happen that causes black dots to show on the screen. These are burnt out junctions where the rows and columns meet together. The dot is commonly called a pixel.

Jan 21, 2010 | Compaq Presario M2000 Notebook

1 Answer

Toshiba Satellite M305D-S4829 starts automatically


be aware of the subconcious obvious and peanut butter & jelly sandwiches in the celler. Also fluffy oinks oinks and a fluffy dead munchkin in your freezer , IM NOT ON DRUGS!!!!!!
Lol, only kidding mate, it may be the wires are not connected properly from the screen to the processor, sorry for that palava at the beggining, i just had my medication, you see i live in a mental institution, my bedroom is my shoe box and i just had a chocolate biscuit.LOL

Jul 31, 2009 | Toshiba Satellite M305D Notebook

4 Answers

Black screen


There are only three issues it could be...

1. The ATI video card has become warped due to overheating which woulod need to be replaced. You can find them used on Ebay for around $65 or new for around $125.

2. The cable has become frayed that connectects the video card to the inverter board due to opening/closing the laptop. Like $7 on Ebay.

3. The ribbon cable connection to the LCD panel itself has started to come undone which is also a common problem. Around $125 on Ebay.

You can try pressing down above the F5 key to see if the screen will come back up.

-Please give me a thumbs up :)

Dec 26, 2007 | Compaq Presario X1000 Notebook

2 Answers

White screen


Honestly, this has happen to me 3 times on such random occasions. My solution...leave it alone. Thats right turn it off leave it to charge over night, when you wake up take the battery out for a bit, then put it back in after fter a little while. I promise you it always works for me. shit it just worked as I'm typing this. Am I sure this isnt part of a bigger problem? no. But it is the best solution, considering T-Mobile wants to charge me 110 to get it "fixed"

Nov 04, 2007 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

Laptop screen


Sounds like the switch that tells the cpu when it's open or closed is going bad. On most laptops there is a little switch that protrudes from your keyboard (usually in upper corners). Try cleaning it with isopropyl alchol(rubbing alchol) and a q-tip and see what happens. If you can't locate the switch on your model get back to me and i'll research a little deeper for you. Hope this helps

Sep 14, 2007 | IBM ThinkPad 770 Notebook

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