How To Replace The Backlight Lamp Ccfl

How To Replace The Backlight Lamp Ccfl
  • Jan 11th, 2024
  • Ranjeet Singh
  • How To
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Hello Friends, I hope you are all doing fine!

Do you face a backlight dim problem? Does the start-up have a red tint? Does your backlight eventually give out, or do you hear any high-pitched hum sound from your screen? Then, here's part two of the laptop repair and disassembly. We're moving away from the experimental operation into a healthy repair.

This blog warns readers about using CCFL Tubes, small fluorescent bulbs containing mercury. They are also likely to be made of lead glass, which is very brittle and has a low melting point. Therefore, avoid shock and unnecessary stresses on the Bulb, including prolonged periods of high heat due to soldering iron. We recommend not twisting or bending your backlight CCFL bulb by wrapping wire around it.

Here is a list of Parts and Supplies:

To disassemble your machine, you'll need the following:
1. Bulb for replacement
2. High Temp Foil Tape having EMF Shielding
3. Soldering Iron
4. Solder Wick
5. Wire Cutters

Then you need to disassemble it by taking your screen apart if it hasn't done so already!
Find instructions on disassembling the screen, replacing the LCD inverter, and replacing the LCD hinges.

Read Also: LCD Screen Turned Completely White

It would be best to desold your old Bulb by removing the silicone end covers to expose the old CCFL's solder joints. Desolder uses a solder wick to remove the wire as the wire had an excellent through-hole fortune.

Then, you need to solder the new Bulb if your old Bulb has plastic rings and transfer those over to the new one. Then, it would be best to solder on the Bulb's wires, as you should not apply heat to them for more than 4 seconds. Additionally, we recommend placing the wire at the base of the connection where these bulbs are not directional so there are no "+" and "-" sides.

It would be best to rim the Bulb, which may come with long leads, and then cut those with wire cutters. Afterward, the silicone end caps should be replaced.
Then, place the Bulb into the reflector assembly just as the old Bulb was in the case of wires pointing "up."

Read Also: How to Stop System Data Usage in Windows 10

We recommend that you test before the trouble of reassembling and then reconnect your inverter and Bulb by restarting your machine. Now, does your Bulb work? Then, allow it to stay on for a few minutes to ensure the inverter, in high-pitched squealing, doesn't get overloaded. If everything works well, then continue forward. Check whether your solder joints have connection issues if your Bulb doesn't light. If that is also good, then check the Bulb for any cracks. Otherwise, there is a possibility that you may have a dead bulb.

Then, you must attach the reflector assembly to the glass behind the LCD and polarizing sheets. You'll then find a pane of glass about 1cm thick on which the reflector assembly straddles this glass. So you need to clip the reflector assembly onto this glass and do so in a way that won't break the Bulb, which is as even as possible.

In the final step, you must reassemble your laptop by reversing the procedure to assemble it.

Here is the List of Dell Authorised Service Centers in Vadodara

Here is the List of Lenovo Authorised Service Centers in Vadodara

Here is the List of HP Authorised Service Centers in Vadodara


We hope this blog will help our laptop users replace their backlight lamps (CCFL).

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