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Lenovo Thinkpad Backlight Not Working


Your symptoms would be no backlight on the LCD and often missing indicators on the bottom of the screen, depending on whether you have one or two fuses out. You might try using a needle nose tweezer to lift that button. For cases like this I always keep 2-3 different backlight bulbs I removed from broken screens, it makes my troubleshooting process much easier. Recent Laptop Reviews RCA Voyager III Review: Low on Price and Performance iClever F56 Bluetooth Transmitter Receiver Review AUKEY PB-T11 30,000 mAh Battery Review: Power for iPads, iPhones, and More Aukey have a peek at these guys

You own it. pinkish hue before it completely cut out is a dead give away right?Apparently this isn't the entire story, I replaced the backlight to no avail then replaced the inverter and still Joaquin July 13, 2007 | Hello, I orginally posted this under a different article and thought this one to be more appropriate for my problem. However, later the same day it seems the CCFL went out all together because the screen on the laptop is very dim but you can still make out icons and wallpaper.

Lenovo Thinkpad Backlight Not Working

It’s dark, but the image is still there and sound works perfectly. Working... I would go with the inverter board first. I re-checked all of the connections and the lid-button-thingy and it's all fine.

  1. gnu February 12, 2007 | I have a T41 (XGA screen) with an weird issue: when starting Windows GUI or getting back from sleep/suspend, a LCD light is coming from center
  2. However, out of nowhere, it suddenly began starting up in between 2 and a half minutes to 3 minutes.
  3. You shouldn't have to beg the manufacturer for permission to fix it when it breaks.
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  5. Make sure you update your BIOS before you update your touchpad driver.
  6. Before replacing the inverter board, I would check this little button (lid close switch) and make sure it's not stuck inside.

I just replaced the Inverter in a Dell. In most cases the screen inverter is the culprit. I am following the instructions above to try to replace my inverter. T420 Inverter What is the word for dragging motion of a finger on a trackpad?

Is it a replaceable item? In some cases you can turn the backlight on if you tap rapidly on the lid close switch. - The screen always stay black and the backlight never comes on but bad inverter 3. read this post here I am seeing the possibility that some fuses may be located over near that area. ________________________________________________________________________________ This applies to Dell, Sony and many other manufacturers of laptops with LED based screens.

Top Profile Reply with quote oliversl Post subject: Re: ThinkPad T400 LCD not illuminated (no backlight)PostPosted: Thu Mar 14, 2013 9:37 am Offline Freshman Member Joined: Thu Apr 17, Lenovo T430 Lcd Backlight Not Working Tell them that you want the right to repair your purchases. I researched replacing CCFL's and it requires going deep into the screen assembly and desoldering and resoldering the CCFL. If I stare hard enough, I can see the images on the screen so it sounds like the symptoms mentioned on this site for a bad inverter.

Lenovo T420 Backlight Fuse

Viruses or Malware¶ Viruses and malware will cause your computer to become slower overall. It might be just a lose connection. Lenovo Thinkpad Backlight Not Working Many Thanks! Lenovo T430 Backlight Fuse If you have replaced the inverter board but still experience the same issue, there could be many different reasons.

Sign in Transcript Add translations 15,025 views 21 Like this video? http://webcomputerrepair.com/not-working/lenovo-thinkpad-touchpad-buttons-not-working.html The user came to me with the pink screen and I started researching and then an hour later they came back to my office saying the screen was black which we elkyn April 19, 2007 | Hi I have a T20 with no video at all..what can I do ..pls help me? Plug in laptop without the battery attached. Lenovo T420 Screen Dark

Tell them that you believe repair should be fair, affordable, and accessible. Does it happen to be the fuse or something? Manufacturers don’t want a Fair Repair bill. check my blog Is it common for ribbon cables to break in this manner? 12-23-2011, 03:07 AM #4 dai TSF Team, Emeritus Join Date: Jul 2004 Location: west australia Posts: 78,002

Any comments appreciated, I am indeed to fix my laptop, finals are near. Lenovo T430 Dim Display I am now at a loss. I don't want to take the unit apart to find out and I want to hook into the wireless pcb so I can use some sort of external antenna (parabolic).

Touchpad is sporadic, or does not respond¶ This can be caused by the following issues: Dirty TouchpadTo solve this problem, you want to clean your touchpad with rubbing alcohol to remove

Any advice you can offer is GREATLY appreciated. I cannot tell you if this is the backlight tube or the inverter board problem, you'll have to guess. First, I would try reseating the video cable on both ends - on the motherboard and on the LCD screen too. Lenovo T420 Screen Not Working I have always enjoyed reading this site.

No or Very Dim Display¶ This can be caused by the following issues: The brightness is not set high enoughTo fix this problem in the Lenovo T400 serie, move your mouse Sign in to make your opinion count. LCDPARTS 22,715 views 8:51 Lenovo IdeaPad Change Backlight keyboard Y580 Y585 Y780 - Duration: 5:56. news I've got the same problem as you and i do not know what to change, the inverter or cable.P.S How can i check what type of backlight do i have ?