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I need to replace the backlight/inverter assembly on my HP dv6700 series laptop. I have the part. How do I get to the backlight ?

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Not that tough at all.

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

2) De-Static yourself. Computer hardware components will fry out (Short Circuit) when exposed to Static electricity. Even the Inverter for the Backlight/LCD screen..

The best method is to use an ESD wrist strap (Electro Static Discharge), and connect the alligator clip to a good ground source.
(Average cost is $3 to $8)

Example: http://www.cispc.com/ssproduct.asp?pf_id=1012513515

I connect mine to the metal frame of an empty desktop computer case.
If this is not feasible for you, at least touch a metal doorknob before working on your laptop.
Work on a table. If you leave your laptop in the middle of working on it, be SURE to touch that doorknob again upon your return.

3) I would like you to download the Service Manual (Free), for the Pavilion dv6700 series of notebooks. (Laptop)
From HP Support,

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&lang=en&product=3636595&

On this page click on -
HP Pavilion dv6500, dv6600, and dv6700 Entertainment PCs - Maintenance and Service Guide.

This is a PDF file. The computer you are on now has Adobe Reader on it, which uses PDF files.
(I would recommend that you go to Adobe Reader Support, and download Adobe Reader 9.3.4 ,if you do not have it on the computer you are using

http://www.adobe.com/support/reader/ )

After you click on the above service manual link, it may take a few seconds before you see the first page.
It will take additional time for the file to fully download.
Watch the download progress bar, and let the file fully download before looking through it.

If you are aware of the following, please disregard:
You can save this PDF service manual to the computer you are using now.
This way you can burn it to a CD disk, and have it for future reference any time you want.

(You can also delete it from the computer you are using now after burning a copy, and save harddrive space. Plus you won't have to download it again)

If you are not aware of how to perform this, please post in a Comment.

At the top header of the PDF file is the Page Number box. To the right of the blue Down Arrow.
The expedient method of going directly to a page, is to;

1) Put your mouse cursor in the page number box
2) Left-click once
3) Type the page number
4) Press the Enter key

Go to Page 49
In item number 5 where it states, "Flex the inside edges of the left and right sides (1) and the bottom edge (2) of the display bezel until the bezel disengages from the display enclosure"

The Display Bezel is the thin frame, going around the Front outside edges of the LCD screen.

Gently lift the inside edge of the frame with a fingernail.
Use caution so that you Do Not scratch the LCD screen protective outer layer.
[The inside edge is the edge towards the middle of the LCD screen]

Work on lifting part of the Display Bezel's edge up. Go along with the tip of your finger, and keep working the edge up as you go along.
You will hear a pop-pop-pop as you gently pry the bezel up, and out.

There are plastic protrusions coming from the Display Bezel, that snap into place in the Top Cover of the Display Assembly. Their releasing is the pop sound you hear.
Didn't want you to think you were breaking anything.

[Use care as the Display Bezel IS plastic, BUT it is a space age plastic, and is Pretty Tough! ]

(In case you cannot download the Service Manual, be aware that there are 2 Philips head screws to remove FIRST!
They are at the Bottom outside corners.
There are 2 rubber-like screw covers to remove, that cover these screws)

Now you will see the Display Inverter, and the two cables leading to it.
The left side cable is the Display Panel cable.
(Power and signal to the LCD screen. {Display}
The right cable is the Backlight cable.

GENTLY wiggle, and ease off the connectors for these two cables, from the Inverter.
Do Not pull on the wires!

You'll have to look closely to see the parting line of where the two connectors meet.
The Display cable, and the Backlight cable have the male connector.
The Inverter has the female connector.

Use your fingernail and thumbnail, to ease the male connector out of the female connector. The thickness, of the side of the male connector, is approximately 1/8th inch.

Post questions in a Comment.
Regards,
joecoolvette

Posted on Oct 12, 2010

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My acer aspire 4315 lcd is faulty...i can see in it but its so dark


kezler_0007,

I have found in the 8 years of being online, and providing answers/solutions to people's computer problems; that coming across, and trying to explain the answer/solution, is the hardest thing to do.

It appears I have failed you

Let's try again;

1) Perusing the internet, I look at what LCD screens are offered, (Aspire 4315 series of Notebook PC's), and see what backlighting is offered.

I have seen LCD screen examples offered, that seem to be CCFL backlighting.
I DO have to know however, WHAT style of backlighting is used for YOUR laptop.

Do Not want to make a mistake here, because the mistake could cost you five times as much.

You buy a not needed LCD screen, about $100, and only needed a screen Inverter; about $18.

!O_O!?

IF, your laptop states LED backlighting, THEN the only option is to buy the entire LCD screen.
With LED backlighting, the LED backlighting is incorporated into the LCD screen assembly.

There is no simply replace the LED backlighting.

With a laptop that uses CCFL for backlighting, the first thing to do is replace the screen Inverter.
90 PERCENT OF THE TIME the fault is a bad screen Inverter.

Allow me to state the primer over again, now that I have more room;

An LCD screen does Not produce light,

http://solutions.3m.com/wps/portal/3M/en_US/NA_Optical/Systems/BehindTheScenes/Optics101/

(Click on the monitor icon)

Therefore an LCD screen needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or two of them), Or a series of LED's.
(Light Emitting Diode)

When I state series, I mean a LOT of LED's. They are incorporated into the LCD screen assembly.
(You see from the above link that an LCD screen is an assembly)

A CCFL is a 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 larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height,

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

View the last 8 photos to see what an average CCFL looks like.

Know this also; A CCFL is a Fluorescent bulb.
This means it has MERCURY in it.
VERY dangerous if the bulb breaks!
Mercury is POISON to the human body.

IF, it is determined that the laptop uses CCFL/s for a Backlight, -> AND the CCFL/s are bad, I implore you to have a pro change it/them.
The other option would be to replace the LCD screen.
The CCFL is incorporated into the LCD screen assembly.

HOWEVER, I still go with the screen Inverter is bad.
(IF, the laptop uses CCFL for a Backlight)

1) http://www.screenaid.com/acer-aspire-43152004-laptop-lcd-screen-141-wxga-glossy-ccfl-backlight-p-7495.html

2) http://battery-adapter.com/product_info.php/products_id/3773/vAspire+4315+Series

3) http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-acer

Go to the 'paragraph' that starts with Aspire 1200. (1200 in Blue)
Drop down to the 4th line, (3810T in blue), scroll across, and click on - 4315

This is a free Service Manual.
It is in PDF file form.
The computer you are using now has Adobe Reader on it, which uses PDF files.

After you click on the file name (4315) it may take up to 30 seconds, before the first page comes up.
(The file is downloading in the background)

[May be on my end, but it took 44 seconds just now, and using a medium speed DSL connection. Usually takes 10 to 12 seconds. Just letting you know so you do not think the link doesn't work ]

LCD Module Disassembly Process - Page 86

Hmmm, also states Inverter Board. (screen Inverter)

Removing the LCD Module is on Page 71.

4) NOT an Acer Aspire 4315 series of Notebook PC; Aspire 3810T. Posted so you would be able to get a more 'Hands on' idea, of working on your laptop,

http://www.insidemylaptop.com/replace-broken-screen-acer-aspire-3810t-laptop/

Test the screen Inverter before replacing?
IF you have a sensitive multimeter, you can. Otherwise IMHO the choice is to just replace the screen Inverter.
Parts changing I know, and I abhor it; but if it is your only choice?

http://www.fonerbooks.com/test.htm

Where in the Philippines to order from? Do not know.
Suggest using the internet.

For additional questions please post in a Comment.

Regards,
joecoolvette

Nov 03, 2012 | Acer Aspire 4315 Notebook

1 Answer

T42p display lights for a couple of minutes through startup then goes dark


But fan still runs, and it sounds like the harddrive is spinning?

Diagnose.

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

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

1) Laptop OFF, monitor OFF, connect the VGA monitor cable to the left side of the ThinkPad T42. (DisplayPort)

2) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.

By factory default, the display should show on the external VGA monitor.
If not;

There are at least three 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 down on the Fn key, and at the same time tap once on the F7 key. The F7 key is the Display Toggle-Over key.

3) Good display on external monitor?
Problem is the video cable, or inside the Display Assembly.

Since the display goes dark after a couple of minutes, I can tell you the problem is the screen Inverter, or Backlight.
(Inside the Display Assembly)

90 PERCENT OF THE TIME the fault is a bad screen Inverter.

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 a series of LED's.
(Light Emitting Diode)

The Lenovo ThinkPad T42 series of Notebook PC's, uses a single CCFL for a Backlight,

http://www.screentekinc.com/IBM__ThinkPad__T42-series-laptops-lcd-screens.shtml

A CCFL is a 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 larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height ]

A screen Inverter converts the power from the laptop, for the LCD screen, and Backlight.

(Older versions of backlighting that used a series of LED's, used a screen Inverter. Newer versions do not. For these replace the LCD screen)

A screen Inverter and an LCD screen are a MATCHED unit. Make sure you get the correct screen Inverter, or LCD screen, when buying.

Primer over.

One example of a screen Inverter for the T42's,

http://battery-adapter.com/product_info.php/products_id/3381/vThinkpad+T42

Pictorial guide for replacing a screen Inverter, in a ThinkPad T42 series of Notebook PC,

http://www.insidemylaptop.com/replace-screen-inverter-in-ibm-thinkpad-t40-t40p-t41-t41p-t42-t42p-laptops/

http://www.laptoprepair101.com/laptop/2007/01/31/replace-screen-inverter-fix-backlight/

Lenovo Support link to the Hardware Maintenance Manual, for the ThinkPad T42 series of Notebook PC's,
(HMM. It is a Service Manual),

http://support.lenovo.com/en_US/guides-and-manuals/default.page?

Click on the bold black subheading -
Hardware maintenance manuals
Then click on the blue -> [+] Click for files

It is a PDF file.
It may take up to 30 seconds before the first page comes up.

For additional questions please post in a Comment.
Regards,
joecoolvette

Jul 29, 2012 | Lenovo ThinkPad T42 Notebook

2 Answers

D505 replacement screen has not solved the backlight problem


The drive voltage from the motherboard to the input of the inverter board is missing which in turn drives the backlight, trouble is you will need a service manual to track the problem. Try www.dell.com for customer support and the technical department, they may be able to provide answers.

Jul 01, 2012 | Dell Latitude D505 Notebook

1 Answer

Removing back cover of hp dv 6915nr


Back Cover?

1) Display Cover: The plastic cover that is on the opposite side of the LCD screen. Sometimes referred to as Top Cover.

Display Assembly is removed from laptop first, then LCD screen assembly is removed from the Display Cover.

2) Base Enclosure: The plastic bottom part of the notebook.
A laptop is disassembled from the Top down to the Bottom.

The bottom 'cover' (Base Enclosure) is not removed first. It is last.

3) There is no back cover per se. Half of the cover for the back (Bottom half) is part of the Base Enclosure. The top half is part of the Palm Rest.

(The back has the Vent in it)

http://www.insidemylaptop.com/remove-replace-lcd-screen-inverter-hp-pavilion-dv6000-laptop/

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-compaqhp

[Use the dv6700 service manual. Go down to the subheading HP Pavilion dm1 (dm1 is in blue)
Scroll to the right, click on dv6700. Note that it is a PDF file, and may take up to 30 seconds, before you see the first page come up ]

What is it you are trying to do? What hardware component are you trying to access?

Post back in a Comment.

Regards,
joecoolvette


Display assembly is removed. Palm Rest Cover is removed, and so on.

Jan 14, 2012 | HP Pavilion dv6915nr Notebook

2 Answers

My hp dv600 when powered up looks normal but if i give it a few seconds the screen goes black and wont come back i shined a light and i do have picture but no light maybe ballast?


alejandro,

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

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.
Very similar to the Fluorescent lamps, (Bulbs), used in homes and businesses, but on a MUCH smaller scale.

HP Pavilion dv6000z series Notebook PC, is a general series designation. The EXACT model number is on the bottom of the laptop in a white Service Tag.

The HP Pavilion dv6000z series of Notebook PC's used either an LED or CCFL type of Backlighting.
Depends on which model it is.

http://www.screentekinc.com/backlight-ccfl-led-explained.shtml

As stated in the above information a Backlight is mounted in the back, or on the side of the LCD screen.
The LCD screen is composed of layers. These layers are held together by a metal frame which emulates a picture frame. If the Backlight is a side unit it will be held in place next to the layers, and inside the metal frame.

[Which means the LCD screen's metal frame, (LCD Panel Frame), needs to be opened on one side.
This will leave the layers which compose the LCD screen loose. The layers MUST be held in the proper placing when changing out the Backlight. Not an easy job to accomplish]

An Inverter is used to change the power coming from the laptop, to be used by the LCD screen, and Backlight.
90 percent of the time the problem is the Inverter.

The Inverter for the Pavilion dv6000z series of Notebook PC's is located inside the Display Assembly.

The Display Assembly is the
1) Display Enclosure Cover, (Plastic top of laptop),
2) LCD screen,
3) LCD Panel Frame, (Metal frame around LCD screen),
4) Display Bezel, (Thin plastic frame which surrounds the LCD screen in the front)
5) Camera Module
6) Inverter
7) Display Enclosure Cover Hinges (2)
8) Display Enclosure Cover Hinge Covers (2)
9) Wireless Antenna Transceivers and Antenna Cables
10) Microphone receivers and cables
11) Various mounting screws

[The Top Cover for a Pavilion dv6000z series Notebook PC is essentially the Palm Rest. The cover under the Keyboard]

With the Display Bezel removed the Inverter is located at the bottom.
(Display Assembly removed from laptop first)

HP Support > Pavilion dv6000z Notebook PC series> Manuals>Service Manual>

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&lang=en&product=3224052&

One example of an Inverter for an HP Pavilion dv6000z series Notebook PC,

http://www.amazon.com/DV6000-DV9000-V6000-INVERTER-AS0231721C1/dp/B00480MXUS

Please post additional questions in a Comment.
Regards,
joecoolvette

Jun 11, 2011 | HP Pavilion dv6000z Notebook

1 Answer

Hp g5000 sreen does not light up as usal, i can see a the start up when i shine a torch at the sreen, what do i need to do to get working.


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

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

The LCD screen is a composite of layers, surrounded by a thin metal frame that resembles a picture frame.
To one side of the LCD screen layers, and under the frame is usually where the Backlight is mounted.
[Note* Two Backlights are used in some models]

Replacing a Backlight is more labor intensive than replacing an Inverter.
Due to this, and the cost, the LCD screen itself is replaced as a unit most of the time, when it comes to Backlight replacement.

Example of a replacement LCD screen for the HP G5000 series of Notebook PC's,

https://www.screentekinc.com/HP_G5000_Series--15.4-inch--1280x800-wxga-laptop-lcd-screen.shtml

[Note* Stating HP G5000 is just stating the model series. When buying replacement parts the EXACT Model Number should be used. This information is located on the bottom of the laptop, in a white Service Tag.

When replacing an LCD screen, the model number of the replacement LCD screen should be matched to the existing LCD screen's Model Number.
Inverters and LCD screens are matched together. Make sure you get the correct part]

An Inverter is used to provide power from the laptop to the LCD screen, and to the Backlight.

Note* 90 Percent of the time the problem is a bad Inverter.

Example of an Inverter for an HP G5000 series notebook PC,

http://www.zlectronic.com/product/INVERTER-FOR-HP-DAC-07B035-DAC-09B017-DV5000-G5000.html

The LCD screen, Top Cover, Display Bezel, Inverter, Backlight, and various screws, make up the Display Assembly.
The Display Bezel made of plastic surrounding the LCD screen, and in front of the LCD screen is removable.
Behind it is easy access to the Inverter.

The Inverter is approximately 4 inches long, and the width of a No.1 pencil.
Usually located at the bottom of the LCD screen, and right behind the Bezel.

This article shows replacing an Inverter and LCD screen on a Compaq Presario v2000 series Notebook PC,

http://www.insidemylaptop.com/replace-lcd-screen-inverter-compaq-presario-v2000-laptop/

This pictorial guide is not for the HP G5000 series Notebook PC, but the models are very similar when it comes to Inverter replacement.
The above link is to show you what is involved.

Please post questions in a Comment.
Regards,
joecoolvette

Apr 03, 2011 | Computers & Internet

1 Answer

My hp compaq Presario V6500 has been damaged and a computer dude in Bathurst NSW said we need a bulb replaced in the screen as it won't light up. Computer functions via TV. R there any local repairers for...


The monitor screen on your laptop is an LCD screen.

An LCD screen cannot produce enough light by itself. It needs an additional light source.
The additional light source is a Backlight.

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

LCD screens are a composite of layers. The layers are held together by a metal frame, much like a picture frame.
The Backlight is usually located on one side, accessed after removing one side of the metal frame.

As stated, a Backlight is a very small type of Fluorescent lamp, (Tube)
Very fragile, easily breakable, and not usually approached by one who has very little, or no experience in replacing.
More common the entire LCD screen is replaced, which includes the Backlight already installed.

A laptop also needs an Inverter to provide power, both for the LCD screen, and the Backlight.

90 percent of the time the fault is the Inverter.
I repeat, 90 percent of the time the fault is a bad Inverter.

An Inverter is cheaper than an LCD screen, and MUCH easier to replace than a Backlight.

Allow me to show you replacing an Inverter on an HP Pavilion dv6000 series laptop.
Granted, it isn't an HP Compaq Presario V6500 series, but the principles still apply the same,

http://www.insidemylaptop.com/remove-replace-lcd-screen-inverter-hp-pavilion-dv6000-laptop/

I can also provide a free link, to the Service Manual for an HP Compaq Presario V6500 laptop, direct from HP Support,

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&lang=en&product=3369429&

In the list click on;
Compaq Presario V6500, V6600, and V6700 Notebook PCs-Maintenance and Service Guide

This is a PDF file.
Allow up to 30 seconds to see the first page, and an additional time may be needed to fully download.

In the Bookmarks menu on the left click on the + sign next to;
1) Removal and replacement procedures
2) Component and replacement procedures
3) Display assembly

And/or go directly to Page 61 to view the Inverter location.

One example of an Inverter for an HP Compaq Presario V6500,

http://www.sparepartswarehouse.com/Compaq,Presario,V6500,Laptop,Inverters.aspx

Granted this is not what you asked for.
My premise is to teach, and hopefully save people money.

If you have additional questions please state in a Comment.
Regards,
joecoolvette

Mar 06, 2011 | Compaq 449901-001 - HP Presario V6500...

1 Answer

Im on a laptop and the back light usually just flickers but the screen has gone dark and i have to use a flashlight to see the screen.


Replace the Inverter, rickeyjsmith.

An LCD screen cannot produce enough light by itself. An additional light source is needed.
A Backlight is the additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp. (Lamp = Bulb)
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale in physical size.
(Average size is 3 to 5 inches long, and half the diameter of a No.2 pencil)

An Inverter is used to provide power to the LCD screen, and the Backlight.

90 PERCENT of the time the Inverter is the problem.

Which is a Good thing.
The Backlight is located inside the metal frame that hold the LCD panel layers together.
Usually on one side of the LCD screen.
{Some LCD screens require Two Backlights}

Replacing a Backlight is a job for a trained repair person.
The LCD screen is a composite of layers.

http://solutions.3m.com/wps/portal/3M/en_US/Vikuiti1/BrandProducts/secondary/optics101/

A lot of times the LCD screen is replaced for Backlight replacement, because some LCD screens require this.

Backlights cost more than an Inverter, and of course an LCD screen costs much more.

This is an example of an Inverter for an HP pavilion dv2000 series Notebook PC,

http://www.buy.com/prod/new-usa-lcd-inverter-hp-pavilion-dv2000-dv2100-dv2200/q/sellerid/23962916/loc/101/217117085.html

The above is ONLY an example.
An Inverter MUST be matched to THE LCD screen.

Stating Pavilion dv2000 is only stating the series.
The EXACT Product Number is located on the bottom of the laptop in a white Service Tag.
P/N = Product Number

Also, there is an HP part number on the Inverter.
Match the HP part number to the listing for the Inverter you are going to purchase.

A reputable seller will list THE HP part number so that the buyer will purchase THE correct Inverter.

How to replace an Inverter in an HP Pavilion dv2000 series Notebook PC;

1) Service Manual

I'm going to use the HP pavilion dv2000 CTO Notebook PC as an example.
The Service Manual is the same for All of the Pavilion dv2000 series of Notebook PC's,

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

On this page click on the file name >
HP Pavilion dv2000 Notebook PC Maintenance and Service Guide.

After you click on the above link it may take up to 30 seconds, or more, to see the first page.
In the meantime you will be viewing a blank white page.
The PDF file is downloading in the background.

In the Bookmarks menu to the left, click on the + sign to the left of >
Maintenance and Service Guide.

Click on the + sign next to > Removal and Replacement Preliminaries
Read up on Anti-Static Precautions

Now go back, and click on the + sign next to >
Removal and Replacement Procedures.

Scroll the sidebar down, and click on > 5.12 Display Assembly

Direct information on replacing the Inverter is on Page 152.
(Page Number Box at the top of the PDF file, to the right of the blue Down Arrow)

I use a computer pick to ease up on one side of the rubber Screw Covers. You may have a similar device you can use.
If you are careful with the rubber Screw Covers, you can reuse them.
There is a contact cement on the covers.

Lay them down glue side up on a piece of paper.
(They do like to stick to the computer pick, and your fingers, however. Giving you a 'heads-up'.
Try to keep the glue side from picking up debris, however)

If you need guidance, no matter what it is concerning this procedure, please post in a Comment.

One more thing that pertains to the HP pavilion dv2000, dv6000, and dv9000 series of Notebook PC's, that I think you should be made aware of,

http://www.youtube.com/watch?v=bnkQNmKauEc

Regards,
joecoolvette

Dec 05, 2010 | HP Pavilion dv2000t Notebook

1 Answer

The backlight won't turn on but occasionally will flicker.


Suggest you replace the Inverter. A Backlight goes out all at once.
90% of the time the Inverter is the hardware part at fault.

[ An LCD screen cannot produce enough light by itself.
A Backlight is used to supply the needed extra lighting.
A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a much smaller scale

An Inverter is used to required power for the LCD screen, and the Backlight.
Boosts power up for the LCD screen, brings it down for the Backlight.

Dell Support > Latitude D600 Notebook PC > Service Manual

http://support.dell.com/support/edocs/systems/latd600/en/sm/index.htm

Replacing an Inverter is a simple job. Replacing a Backlight is not.
The Backlight is located within the LCD screen assembly.

The metal frame of the LCD screen assembly is removed along the edge where the Backlight is located, to access replacing the Backlight.

In the above list for Service Manual, click on > Display Assembly and Display Latch.

This information shows you where the Inverter is located on a Dell Latitude D620 Notebook PC.
The Latitude D620 is part of the Latitude D600 series of Notebook PC's.

http://www.insidemylaptop.com/remove-replace-lcd-screen-dell-latitude-d620-laptop/

Just one place from a quick search, that sells Inverters for a Latitude D600 series Notebook PC,

http://www.parts-people.com/index.php?action=item&id=2895

MATCH the part number listed that they have, to the part number on your Inverter.
You have to have THE correct Inverter.

Regards,
joecoolvette

Nov 05, 2010 | Dell Latitude D600 Notebook

1 Answer

Laptop monitor not displaying


You could have a faulty CCFL lamp or inverter, To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
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
www.lcdparts.net
for parts, repair service and DIY info

Aug 13, 2009 | HP Pavilion dv6000z Notebook

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