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Hp 510 monitor problem

I have hp 510 when I operated i found that the screen light is very faint,i sent to the maintenance but after a while it returned to its past. Process repeated three times noticed that whenever i leave it for a long time i got the same problem

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  • yaman101 Feb 23, 2008

    Thank you but the problem repeated three times is there any other possible reason .


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You need to replace the back light in your screen. Depending on the laptop, the back l light can be relatively cheap. It is usually the repair that costs the money. If you decide that you want to replace the back light yourself, you can find a few tutorials just by searching google.

Posted on Feb 22, 2008

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I have lenovo screen flickers in every 5minutes...

Failing Inverter An inverter, typically found inside a laptop computer, consists of a small board, which has impregnated electronic circuits stamped on it. Inverters look like thin boards about the of two sticks of chewing gum. The inverter and its bulb control the intensity of the liquid crystal display, which lights the screen monitor. The computer can control the output voltage of the inverter and either lighten or darken the screen. A special type of inverter can adjust the brightness of the screen by using an internal sensor to judge the room brightness, and then adjust the screen accordingly. Failing inverters give off some specific warning signs, which can be recognized by observing different screen characteristics.

Short Intermittent Display Upon turning on the laptop, the screen flashes on in the normal mode for a short period and then blinks to black. A very faint image appears in a dark background, which will be very hard to see almost invisible. After shutting off the laptop and restarting, the same mode occurs, where the screen appears normal for a few seconds then fades to black. This condition points to a failed inverter. To confirm this, plug in an operational external monitor; if the external monitor functions, the inverter has failed. b> Total Blackout with Ghost image b> The laptop turns on, as indicated by the power supply button, but the screen comes up black. The screen comes up black after restart. You might be able to detect a very dim or ghost-like image on the monitor. When you plug in a known functioning external monitor, the external monitor operates normally. This mode of display indicates a failed inverter. b> Long Term Periodic Operation b> With this failure mode, the laptop screen illuminates normally upon start-up and remains that way after several minutes, hours or even days, until it goes very dark again. Brightness controls or restoration attempts do not work. Most often, the screen will function normally with a computer restart, but will eventually return to black. Faint ghost images might appear, as seen in the total blackout mode. b> Dark With Color Variation b> Upon computer start-up, the monitor shows black or dark gray, accompanied by very faint images. The screen might have an intermittent color change, or remain on with a non-standard color variation, like pink or red. b> Auto Control Switch b> If the screen appears black, with no faint or ghost images, look for the lid switch near the back hinge. The switch, when depressed with a closed lid, shuts off the computer and monitor functions. Sometimes the switch becomes stuck in the closed position, disallowing the computer and monitor to turn on when opened. Pushing the switch manually several times can often free it up. If the switch tab has broken or jammed inside the case, it needs replacing. b> Loose Connection In this mode, the display looks normal upon start-up, but tapping the side case of the computer turns the screen black. More tapping results in the screen functioning normally then cutting out again. This condition points to a loose wire connection from the inverter to the LCD backlight lamp, or the video cable. The connectors can be accessed by removing the monitor bezel screws and pulling the plastic retainer off. Both connectors can be cleaned and refitted.

Feb 10, 2013 | Lenovo G550 PC Notebook

1 Answer

I have a hp pavillion zt1170, i bought it off craigslist. it didnt come with a battery and the screen is very faint, when i have it plugged into the mains it powers up and i can connect to a monitor and...

try adjusting the brilliance or contrast usually the FN key combined with one of the keys on the top of the keyboard that has a little sun/half sun icon, or It could be the LCD back light that is fainting with time (expensive repare)

Good luck!

Jan 04, 2011 | HP Pavilion zt1170 Notebook

2 Answers

My laptop is hp compaq 6735s when i press power button the fan will roll but my screen is black what can i do?

1) First check the Display to make sure this isn't the problem.

Laptop on shine a flashlight at the LCD screen, and various angles.
Do you see faint images?

Do you have a VGA monitor available? (Also referred to as a CRT. Resembles a small TV)
If so, laptop off plug the VGA monitor into the VGA connector on the Left side of the laptop.
(Typical VGA connector, )

Turn the VGA monitor on, and let it power up. Once the VGA monitor is powered up turn the laptop on.
Is there a display on the VGA monitor?

If not press and hold down on the Fn key, then tap the F4 key.
This action should toggle your display over to an external monitor.

Yes? You have a display on the external (VGA) monitor?

Then you have a problem with the Backlight, or the Inverter.

An LCD screen cannot produce enough light by itself. It needs an additional light source.
A Backlight is used as an additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.
(Typical size is 3 to 5 inches long, and half the diameter of a No.2 pencil.
A Backlight is located within the metal framework holding the LCD layers together, and is on one edge of those layers. {An LCD screen is composed of layers)

An Inverter is used to provide power from the laptop for the LCD screen, and the Backlight.
90 percent of the time the problem is the Inverter.

An Inverter is a small circuit board located within the Display Assembly. Behind the Bezel of the Display Assembly, and located usually at the bottom of the LCD screen.
(The Bezel is the thin plastic frame that surrounds the LCD screen in the front)

Typical example of an Inverter for an HP Compaq 6735S,

The Display Assembly needs to be removed from the laptop, in order to remove the Bezel, and gain access to the Inverter.
Pictorial guide of how to remove the Display Assembly,

Follow Steps 1 through 7.

This pictorial guide shows how to remove the Bezel. The guide is for replacing a webcam module.
Disregard removing the webcam module, and follow the other steps.

2) If NO display is shown on the external monitor you have a graphic chipset problem.
This requires replacement of the motherboard.

Chip and Chipset are slang terms to mean I.C.
Integrated Circuit.

The graphics chip is mounted to the motherboard with a BGA surface mount. (Ball Grid Array)
Having the chip removed and replaced is more expensive than replacing the motherboard.

This is the download page for the Service Manual (Free) from HP Support,

Under the heading > Service and maintenance information, click on the file name,

HP Compaq 6730S and 6735S Notebook PC - Maintenance and Service Guide.

This is a PDF file.
Usually takes 2 to 5 seconds to see the first page come up, and additional time for the file to fully download.
Suggest you let the file download all the way before looking through it.


Dec 04, 2010 | HP Computers & Internet

1 Answer

After booting, my HP 510 notebook works for a few seconds and then the screen becomes black. Computer still works when connected to external VGA monitor. Can it be processor problem ?

It sounds like you need a new ballast unit for your screen. It cannot be a processor problem as the laptop works OK on another screen. The ballast unit is beneath the screen itself.
Check ebay for a keen priced ballast unit or complete screen.
Hope that helps.

Nov 08, 2010 | HP 510 Notebook

1 Answer

Hp Pavilion dv6000 Blank screen. okay So My

Not for the faint hearted but here's the fix.

They do appear to offer a good repair service a well at what seems a good price.

Jul 21, 2010 | HP Pavilion dv6000z Notebook

2 Answers

The monitor on my hp zv5000 will not light up... I see a faint image if I flash a flashlight or something on the display. how can I get the screen to light up again?

The high voltage inverter that drives the backlight cold-cathode flourescent lamps has likely failed. The inverter is located near the bottom of the display panel.

Jun 14, 2010 | HP Pavilion zv5000 Notebook

2 Answers

My screen is dark, appears like no back light, but everything else still works fine. can faintly see screen

If you can faintly see the screen I would guess the back lights are like you said....not working.
Can you hook up a external monitor or TV so you can still use it and get your files in order. or until you choose to get it fixed. I would get a couple of estimates first
I also found this video if you want to replace the back light inverter yourself.

Feb 23, 2010 | HP Pavilion dv1000 Notebook

1 Answer

Black screen on booting my Compaq 610 notebook

If it seems like you're accessing the hard drive (drive light comes on, flickers intermittently, then goes off, it's a good chance your screen is bad.

First thing to do is plug in an external monitor and start up the laptop. If it comes up with windows, you know it's the screen.

To find out if it's the backlight, or the lcd, toggle the monitor function and shine a flashlight on a slight angle to the screen. If you can faintly see what was displayed on the external monitor, then the backlight inverter is probably bad.

If the external monitor didn't come up, you're probably looking at a motherboard.

The good thing is that all of those are covered for one year under Compaq's warranty, on a new machine.

If you are able to use the external monitor, back up your data, because HP/Compaq usually reformat the harddrive. Additionally, if you've added memory, pull the cards. They want it sent back the way it came from the factory.

Jan 09, 2010 | HP Pavillion ZV6000 Athlon 64 3500+ 15.4in...

2 Answers

Black screen on laptop

Call Dell For replacement backlit screen it happened with mite to the DELL

Sep 21, 2009 | Dell Inspiron 1100 Notebook

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