How to Replace Laptop Backlight Lamp (CCFL)

7/31/2019 How to Replace Laptop Backlight Lamp (CCFL)

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How to replace laptop backlight

amp (CCFL)

Dec

9

this guide I will disassemble a laptop LCD screen in order to remove and

place the backlight lamp (CCFL).

eplac ing the backl ight lamp is not an easy task even for

pe r ie nced technic ians . I f you do something wrong you wil l

rm anen tly damage the LCD screen an d have to buy a new on e.

oceed on your own risk and do not b lame me .

me recomm endat ions before you start :

Work in a clean room. You dont want dust and lint inside your LCD

reen.

Make notes, so you know how to assemble your screen back.

Take pictures.Before you remove something, take a closer look at the part and

emorize how it is assembled.

When you are assembling the screen, remove dust and lint with

mpressed air. Do not use cloth.

he backlight lamp (CCFL) is located inside the LCD screen, so we are

ing to take it apart. In this article Im not going to explain how to

move LCD from a laptop, its been covered before.

ere some examples:

moving LCD screen from a Dell laptop.

king apart IBM ThinkPad display panel.moving screen from Toshiba laptops.

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move sticky tape and foil from the back of the screen and glue it

mewhere so you can reuse it later, when you assemble the screen.

moving tape from the backlight cables.

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n my screen the green circuit board was glued to the plastic frame with a

uble sided tape. Carefully unglue the circuit board. Be very careful, do

t flex or bend the circuit board.

he circuit board has been unglued.


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ace the LCD screen on the side and start removing the metal frame witch

cures the LCD to the plastic frame. There will be many latches on all

des of the frame, you can unlock them with a small screwdriver.

ntinue separating the metal frame from the plastic base.


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n the following picture you can see that frame, LCD with the circuit

ard and screen base have been separated. Be careful, do not touch

ternal components with your fingers. Handle all internal components by

e sides.

ace the metal frame and LCD with the circuit board aside. Youll need

em only when you assemble everything back together.


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here will be a few transparent layers inside. Carefully remove them from

e screen base. Do not separate the layers, just put them aside together.

ep everything organized, so you have no trouble assembling the screen.


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art removing the metal cover from the backlight lamp (CCFL).

he backlight cover has been removed.


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he backlight lamp (CCFL) cables are routed through small plastic hooks.

nroute the backlight lamp cables.

ow probably the hardest part in this disassembly process - removing the

cklight lamp and reflector. The backlight lamp is secured inside the

flector so you have to remove both and then separate them.

fore you remove the backlight lamp and reflector take a closer look hows assembled and mounted to the screen base. Fitting the backlight and

flector back in place could be a very challenging task.


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e reflector is glued to the screen base with a double sided tape.

ter the reflector has been unattached from the screen base, you can start

moving the backlight lamp. As you see on the picture, I marked the left

de of the reflector with a red dot so I know where the red cable goes when

ssemble everything back together.

he backlight lamp (CCFL) has been removed from the reflector.


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order to access the backlight lamp leads youll have to remove thebber caps from both side of the lamp. Im not sure if you can touch the

cklight lamp with your fingers, so I would use rubber gloves.

bled on both sides of the backlight lamp are soldered to the backlightads. In order to access the leads youll have to remove the black insulator

both side of the lamp.

nsolder both cables from the old backlight lamp and solder them to a new

e.

u can test the new backlight lamp (CCFL) before you install it back into


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Posted by cj2600 Subscribe to RSS feed

0 Responses to How to replace laptop backlight lamp

CCFL)

ges: [13] 1211109876543 1Show All

e screen. Connect the backlight lamp into the inverter board and turn on

e laptop. The backlight lamp should light up.

om my experience, on some laptops the backlight lamp will not light up

til the video cable is connected to the LCD screen. In this case youll have

assemble the LCD screen and then test it.

u can search for a new CCFL backlight lamp here.

30

sidu Says:

uly 16th, 2009 at 12:44 am

Hi,

Thanksforposting the tutorial.

I have just changed the CCFL of an IBMThink Pad R50e for adark screen as outlined in the tutorial. When I re fixed the LCD

Displayfound that only about 2in of the screen at the base is

lighted. The upper part of the screen is still dark. I can see the

window screen there but unable to use the screen.

What could have gone wrong in my case?

29

ean Says:

uly 12th, 2009 at 5:21 pm

Hey folks,
http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-11/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-10/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-7/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-6/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-5/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-4/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-3/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-1/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-12/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/all-comments/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-116780http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-116426http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-116426http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-116780http://rover.ebay.com/rover/1/711-53200-19255-0/1?type=4&campid=5335921923&toolid=10001&customid=replace+laptop+backlight&mpre=http%3A%2F%2Fsearch.ebay.com%2Fsearch%2Fsearch.dll%3Fsofocus%3Dbs%26sbrftog%3D1%26dfsp%3D32%26catref%3DC6%26from%3DR40%26satitle%3Dlaptop%2BCCFL%26sacat%3D-1%2526catref%253DC6%26sargn%3D-1%2526saslc%253D2%26sadis%3D200%26fpos%3D98036%26sabfmts%3D1%26saobfmts%3Dinsif%26ftrt%3D1%26ftrv%3D1%26saprclo%3D%26saprchi%3D%26fsop%3D32%2526fsoo%253D2http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/all-comments/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-12/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-1/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-3/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-4/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-5/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-6/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-7/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-8/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-9/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-10/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-11/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-12/#commentshttp://www.laptoprepair101.com/feed/


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My e1705 died last Sunday - was happily watching a video,

then there was a fizzle, and then a black backlit screen. I took

the whole thing apart, messed with it, gave up and put it back

together - then it started working, for whatever reason.

Today (1 week later) it did the same thing again - black screen.

I took it apart as the first few instructions show to ensure it

wasn t a loose cable causing the problm, and theres definitely a

glow from the backlight when turned on or fn-f8ed, but no

picture again. Hooking it up to an external monitor allows it to

work fine, so its not the graphics card (although it was

throwing me all sorts of errors until I reinstalled my drivers).

Could anybody confirm that this is an inverter problem? If not,

I might just ditch this terrible laptop model and go find

something new

28

redSays:

uly 5th, 2009 at 4:38 am

Hi Larry,

Thanks for posting the procedure.

I did this to a Gateway laptop with a 15.25 Samsung

screen. As you previously stated:Replacing the backlight lamp

is not an easy task even for experienced technicians is

absolutely true.

This is a very sophisticated repair procedure.

Anyway, the Gateway is back up and running like new.

I chickened out and didnt un-glue the circuit board as you did

but then found it to be that much harder to get the lamp

reassembled and reseated but I guess luck was with me that

day.It can be done however, patience, patience, patience!.

I would recommend people buy (2) CCFL tubes when

ordering, youll only have to pay shipping once.

I had to pay for it twice because I clumsily broke one just after

I had soldered it (bummed!)

Thank you again!

Fred

27

evin Says:une 9th, 2009 at 6:16 am

Hi thanks for ll the great help. I have a packard easy note

laptop and screen has gone dark but it still can be seen to be

working in correct light. Im going to go about replacing the

backlight now. I just want to know if i can use any correct size

backlight or are they specific to each model of laptop. In short

will any backlight work in any laptop

26

UTAHSays:

une 9th, 2009 at 4:40 am
http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-115944http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112314http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112303http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112314http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-115944


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ges: [13] 1211109876543 1Show All

eave a Reply

Just tested the magnetic switch with a magnet - it goes into

hibernation fine but still restarts with dark screen, so if its not

the switch, inverter or backlight is my board screwed?

25

DerrickSays:

une 8th, 2009 at 5:14 pm

This procedure requires extra care. The backlight lamp of most

LCDs (I think) contain mercury, which is toxic.

24

UTAHSays:

une 7th, 2009 at 3:19 pm

Hi I have tried setting power to never turn off etc but cannot

seem to find anything that will allow me to disable the lid close

switch. could you advisethanks

23UTAHSays:

une 7th, 2009 at 11:52 am

Thanks.. I have replaced the inverter in the screen. i know it

works as it has been tested, the same with the backlighti have

two sp10-304 laptops with exactly the same problem

inverters work as do backlights image is getting onto screen

but really dark its doing my head in.

22

j2600 Says:une 7th, 2009 at 9:07 am

Sam,

Can someone tell me whats wrong with my computer. My

processor works but there is no picture on the lcd.

First of all, you have to test your laptop with an external

monitor. Do you have picture on the external monitor?

21

am Says:

une 6th, 2009 at 9:37 am

Hello,

Can someone tell me whats wrong with my computer. My

processor works but there is no picture on the lcd.
http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112229http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112044http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-111855http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-111855http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112044http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112070http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112101http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-13/#comment-112229http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/all-comments/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-12/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-1/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-3/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-4/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-5/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-6/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-7/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-8/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-9/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-10/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-11/#commentshttp://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/comment-page-12/#comments


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How to Replace Laptop Backlight Lamp (CCFL)