Question about IBM ThinkPad R51 Notebook

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IBM Laptop, Can only see the screen with a flashlight ?

I have an IBM R51 Laptop that has a darkened screen. I can see it ok if I use a bright flash light. Is it possibly just a back light bulb ? And if so can I replace it myself ? I think it is a 14.1 screen ? Barry

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Hi Barry.
You don't have to replace the screen as you can see a fain image on it.
It could be 1 of 3 things, 1st...... the plug that fits into the inverter has worked loose because of opening and closing the lid. 2nd and 3rd, it could be the inverter itself or the inverter coil which is defective.
If your machine is out of warranty and you fancy having a go at this yourself the inverter is located just under the screen behind the bezel (plastic which surrounds the screen) just unscrew the screen, remove the plastic and check the connection to the motherboard and screen.
The inverter looks like an elongated circuit board.

Good luck and please post back if you need anymore assistance.

Posted on Apr 21, 2009

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Hi,
The screen displays becomes dark/ dim if there is no back light.
There are two parts responsible for lighting the display. First is the CCFL (Cold Cathode Florescent Lamp), which is the back light and the second is the Inverter board, which provides high voltage to the CCFL. These parts are inside the LCD screen. Either of the parts may be faulty or in some rare cases both. If you can see a faint image and the laptop turns on normally, then it is definitely the back light issue.
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I SUGGEST THAT YOU SEEK PROFESSIONAL ASSISTANCE FROM AUTHORISED SERVICE/ REPAIR CENTER FOR REPLACEMENT OF INVERTER.

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