Question about IBM ThinkPad T41 Notebook

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Won't reboot black screen

The IBM T41 Laptop won't reboot, there is a black screen. The Z light and battery lights are the only things that are on.

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 243 Answers

SOURCE: T41 IBM thinkpad monitor goes off

Saw exactly the same think on another t41 i was trying to fix. If it was moved at all screen went off.

Turned out it was corrosion on the motherboard that was causing the problem.

Has it been liquid damaged or got damp in the past?

Posted on Jan 07, 2008

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harvester3
  • 181 Answers

SOURCE: IBM T41. black screen

Cold boot the machine, press F1 to access the bios. There is a setting for "screen blanking" which you need to turn off.
If that isn't the problem, you have a short in the keyboard I'd say.
Good luck

Posted on Feb 02, 2008

  • 38 Answers

SOURCE: IBM Thinkpad doesn't start

Visit Lenova's troubleshooting page at
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4YQJZX

I assume you have verified the battery and AC adapter with another machine or a voltmeter.

If none of the above get it going, you most likely have motherboard issues, possibly a blown fuse.

Or possibly a keyboard Power On switch problem.

Good luck.

Posted on Apr 28, 2008

pankaj_dic
  • 1250 Answers

SOURCE: ibm t41 thinkpad display problem

actually its the problem of the cable that gives display to your screen , open your laptop and replace this cable
rate this solution

Posted on Oct 15, 2008

bangjeha
  • 15 Answers

SOURCE: ibm thinkpad no power with ac power adapter but works with battery

If prior to this it works intermittently with the AC adapter, it means the connection from the adapter power unit to the motherboard was lost and this is a typical problem with the Thinkpad. It needs a re-soldering job and not something that one can do without a proper repair manual on how to open the laptop. Try googling your problem and find out if someone has the same experience and managed to resolder by him/herself.

Posted on Oct 19, 2008

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1 Answer

I reinstalled XP on IBM T41, now battery won't charge. Could this be Driver Problem


Sounds like you need a new battery.
It's not just a battery in a case, it also has a small circuit board inside to control the charging etc, if that's faulty it won't charge, or if it has dead cells in it won't charge.

Feb 08, 2012 | IBM ThinkPad T41 Notebook

1 Answer

Dear Sir, Screen of my IBM T42 goes black while I use that... then I have to power off manually. please help


When it goes black, shine a light on the screen, can you still see your desktop very faintly?

Mar 18, 2011 | IBM ThinkPad T41 Notebook

1 Answer

IBM thinkpad T41 -> get


Hi,

The IBM Thinkpad has a very strong security system.

If you are seeing a lock symbol when booting then somebody has set the supervisor password. If you can't remember it or guess it (try "password", "admin", "pass", etc) then you need to find the person that set the supervisor password.

Once the supervisor password is set the T41 is very well protected and it can't be reset by removing the laptop battery or CMOS battery.

There is a way to read the password from the protection chip but this is very complicated and requires taking the laptop apart and building your own chip reader.

The instructions for doing this are are:

http://sodoityourself.com/hacking-ibm-thinkpad-bios-password/

Hope this helps,

Chris

Mar 08, 2011 | IBM ThinkPad T41 Notebook

4 Answers

Hello my laptop t41 power is not even flash but the adapter is working,am technician and i have troubleshoot allot.


I concur with what Diegotech stated.

To iterate further;

1) The DC Power Jack (DC IN), may have cracked solder joint/s on the motherboard connector, (Female), where the DC Power Jack plugs in.

Resolder

2) The DC Power Jack may be broken.
Center Pin mount, and/or body of DC Power Jack, and/or Outer Shell mount.

Replace DC Power Jack.

3) Wires from the DC Power jack plug to the female connector on the motherboard, may be bad.

Replace DC Power Jack.

Two examples, of a place to buy an IBM ThinkPad T41 DC Power Jack,

1) http://www.buy.com/prod/dc-power-jack-connector-socket-for-ibm-thinkpad-t40-t41-t42-r50-r51-r52/q/sellerid/23962916/loc/101/215782035.html

2) http://www.machinaelectronics.com/store/buypart/IBM_Thinkpad_T41/DC-P001

Past this point it's a bad DC sensor on the motherboard.

Replace motherboard.

IBM ThinkPad T41 Service Manual, (Free),

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-ibmlenovo

On this page go down to the 8th line.
The one that starts with > ThinkPad T20.

Go across, and click on > T41

Takes approximately 2 seconds to see the first page, and additional time to fully download.

Page 142 for 14.1 inch LCD screen
Page 151 for 15 inch LCD screen

(PDF file page number box at top)

Dec 01, 2010 | IBM ThinkPad T41 Notebook

1 Answer

My IBM T41 laptop will not boot up! When i press the power button all the lights come on then only the crocked Z with a circle and d battery lights stay on! What should i do?


Try to remove your keyboard and fix it back. Seems like the keys are getting struck. You could search in Youtube of how to remove and fix the keyboard back on the laptop.

Nov 29, 2010 | IBM ThinkPad T41 Notebook

1 Answer

T41 appears to be dead. I see the power light but


Good day sir, there are several resons why a laptop wont power up, or wont display a thing.
  1. Memory is bad so make sure to check for memory module.
  2. The battery is bad, check you battery with other similar laptop.
  3. The power supply/charger is bad.
  4. There seem to be a shorted circuit board on your laptop ground chassis. For you to test it, you should dissassemble the laptop and one by one reassemble it again.
  5. Mainboard, sad to say if everything else fails, the mainboard is the last culprit. better visit your local service center.
hope this helps, please update me if you may have any progress report on your laptop, thanks

Jul 24, 2009 | IBM Thinkpad T40 Thinkpad T41 Thinkpad T42...

8 Answers

Thinkpad screen goes blank if I touch/move laptop and reboots.


Push down on the center of your computer and restart it

Nov 16, 2008 | IBM ThinkPad T41 Notebook

2 Answers

IBM T41. black screen


It's a common problem with flex of the unit causing the video chip to coming un-soldered from the motherboard. It's possible to repair but very difficult requiring luck and specialist equipment.

http://answers.yahoo.com/question/index?qid=20070710050433AAgGOTJ

Feb 01, 2008 | IBM ThinkPad T41 Notebook

1 Answer

IBM T41 Power issues?


Could a MoBo failure or nothing more that a connector- solder problem. I depends on your abilities- take it apart and have a look or Send it to a repair shop or Take it apart- shudder put it back together then send it to the repair shop ;-)

May 30, 2007 | IBM ThinkPad T41 Notebook

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