Question about IBM ThinkPad T23 2647 Notebook
Yes you have no backlight. The screen is all dark but in the back you can barly see it. You inverter is bad on you thinkpad. You need to replace it. I have a IBM thinkpad 600e and i got one for $9.95 so they can be cheap. They are located under the lcd. When you open it up it is there or can see that it is attached to the light dimmer swicth so you will know that is it. Thats your problem
Posted on Nov 25, 2008
There is a possibility it is your backlight because the laptop is probably older than 3 years, then you have to replace the ccfl lamb of the screen. It is a difficult repair but it can be done, if you look for guides online you will find something. I work for company that does Laptop repair in NYC and we do this repair frequently.
Posted on Apr 24, 2009
Mouse pointer quit working om my IBM Thinkpad T23 laptop. What can I do to fix it? Joyce
Posted on Oct 06, 2008
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Posted on Jan 02, 2017
SOURCE: No video on Ibm Thinkpad T23
i also have a t23, and i have messed around with the display a lot...
there are several things to consider:
1) your operating system. i would assume you are using windows xp, and that you dont get video even before the OS starts up in the first place, but its just something to consider: i have heard of some video bugs with the t23 under linux
2) you should check to see if the laptop display and the video out problems are related in the first place. to be honest, i dont know why they would or would not be related. the display not work because a) its just plain broken (although in this case there are usually some somewhat obvious cracks) b) the ribbon cable from the display to the motherboard could have ripped (they do so very easily). if the ribbon cable is ripped in its usual place, you MIGHT just not have a backlight. make sure that there is nothing on the screen, not just a normal display extremely dark. if theres definitely no picture, then you have to take the laptop most of the way apart, but you can start with just the screen casing. its fairly easy to figure out how to take apart, but you might want to look it up. behind the screen casing you can see the ribbon cable and whether or not its ripped. oh, but before you do that, try turning the led light on thats built into the top of the screen. its also part of the ribbon cable. you can do this by pressing the fn key and page down or something next to the brightness buttons. if that doesnt work then your ribbon cable is either ripped, or of course it could just be a motherboard problem in which case all of what ive said is fairly useless information. if you want you can also take off the keyboard and top casing from the screws in the bottom and look at where the ribbon cable (and maybe the video out too) meets the motherboard, just in case theres an obvious problem or disconnect. it probably wont be very obvious. however, if you do discover fairly surely that it is the ribbon cable, then you can get them for very cheap. search "ibm thinkpad lcd video cable t23"
hope i could be of some help
Posted on Mar 30, 2008
You could have a defective screen - a defective inverter or a CCFL lamp.
To determine if you have a LCD screen or video card problem, read this and follow the instructions.
Defective CCFL backlight, it may have the following symptom:
Connect an external monitor to your laptop and power it up, 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.
Posted on May 08, 2009
Use this link http://www.lenovo.com/support/
1- Select your Product - Notebook and Handhelds
2- Select family - Thinkpad T23
3- Select Your type
4- Select your Model
5- Select your Operating system
And Download and Install
Have a nice day...
Posted on May 19, 2009
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Posted on Jan 03, 2010
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